Three-way valve with servo drive for domestic hot water. Overview of Esbe three-way mixing valve models Three-way valve on an esbe heating system

I provide passport data and a video of the servo drive working. I also show how to connect and mount and then configure the servomotor for a three-way valve.
And so let's get started...
In this article we will look at the most versatile servo drive today, ESBE 99K2, which is shown in the picture, and the ESBE VRG131 valve.
The servomotor is sold with two connection kits, for two different standards of three-way valves with a circular rotating valve for unlimited rotation. More details will be indicated both in the passport and in the video.
It's important to understand:
1. The three-way valve itself contains a ball valve that rotates in a circular manner for unlimited rotation. For work, the valve must be turned clockwise and counterclockwise from 90-180 degrees of rotation.
2. Servo drive is electrical equipment and a device for rotating this ball valve. By rotating the valve, two passages are opened and closed, and the third passage is constantly open. The servo drive, through a temperature sensor, rotates in the desired direction to open or close the feed hotline circulation. More details in the video and in the passport. We also look at how to configure the valve for a specific circuit.
Servo drive ESBE 99K2, advantages:

• Power supply 220 Volt
• Electrical remote temperature sensor
• Temperature adjustment(15-70 degrees) in real time
• Adjusting the time (1-70 seconds) for checking the temperature sensor and turning on the rotation.
• Rotation adjustment: from 10-180 degrees
• Switching rotation clockwise and counterclockwise (reverse)

At 90 degrees, it is possible to set the required rotation of the ball valve in real time for testing (press the button and scroll). If a 180 degree rotation is required, the handle is not installed and adjustment cannot be made. And this is of no use, the function is only useful for masters when testing the mixing unit.
Flaw: If there is no power, the valve does not return to any position, but freezes in the position in which it was set automatically.
In general, it is used for large facilities where it is necessary to make a mixing unit with a high flow rate (from 2 cubic meters per hour and above).

Acquaintance Three way valve with servo drive

Connection Three way valve with servo drive

Servo setup Three way valve

Passports:

The Swedish company ESBE has been a recognized leader in the field of water heating and cooling control systems for many years. ESBE three-way mixing valves series VRG 131 and 3F, as well as electric drives ESBE ARA and 90 series are an example excellent quality and reliability at an affordable price. A wide range of mixing valves Esbe allows you to do optimal choice depending on system requirements. The materials used are high-quality brass alloys or cast iron. Valves are available with threaded or flanged connections.

Model	vendor code	DN, mm	Connection	Kvs, m³/hour	Weight, kg	Replaces
VRG131-15-0.4 price >>	11600100	15	Rp 1/2"	0,4	0,40	-
VRG131-15-0.63 price >>	11600200	15	Rp 1/2"	0,63	0,40	-
VRG131-15-1 price >>	11600300	15	Rp 1/2"	1,0	0,40	-
VRG131-15-1.6 price >>	11600400	15	Rp 1/2"	1,6	0,40	-
VRG131-15-2.5 price >>	11600500	15	Rp 1/2"	2,5	0,40	3MG15, 3G15
VRG131-15-4 price >>	11600600	15	Rp 1/2"	4,0	0,40	-
VRG131-20-2.5 price >>	11600700	20	Rp 3/4"	2,5	0,43	-
VRG131-20-4 price >>	11600800	20	Rp 3/4"	4,0	0,43	-
VRG131-20-6.3 price >>	11600900	20	Rp 3/4"	6,3	0,43	3MG20, 3G20
VRG131-25-6.3 price >>	11601000	25	Rp 1"	6,3	0,70	-
VRG131-25-10 price >>	11601100	25	Rp 1"	10	0,70	3MG25, 3G25
VRG131-32-16 price >>	11601200	32	Rp 1 1/4"	16	0,95	3MG32, 3G32
VRG131-40-25 price >>	11603400	40	Rp 1 1/2"	25	1,68	3G40
VRG131-50-40 price >>	11603600	50	Rp 2"	40	2,30	3G50
VRG132-25-10 price >>	11602500	25	G 1 1/4"	10	0,70	3MGA25
VRG132-32-16 price >>	11602600	32	G 1 1/2"	16	0,95	3MGA25

Flanged mixing valves Esbe 3F, 4F Mixing flange valves ESBE 3F, 4F are made of cast iron and are widely used in heating and cooling systems. Esbe 3F valves can be used in closed systems with water that does not contain dissolved oxygen. When the Esbe 3F, 4F valve operates, the hotter coolant is mixed with the cold one entering the boiler, which ensures an increase in the temperature of the coolant returning to the boiler. This reduces the risk of low-temperature corrosion. The valves are manufactured in sizes DN 32-150. Flange connections, cast iron body, brass spool, EPDM seal, T=-10C...110C. Pmax=6 bar

Model	vendor code	DN, mm	Torque required drive, Nm	Kvs, m³/hour	Weight, kg
3F-20 price >>	11100100	20	3	12	3,5
3F-25 price >>	11100200	25	3	18	4,0
3F-32 price >>	11100300	32	5	28	5,9
3F-40 price >>	11100400	40	5	44	6,8
3F-50 price >>	11100600	50	10	60	9,1
3F-65 price >>	11100800	65	10	90	10,0
3F-80 price >>	11101000	80	10	150	16,2
3F-100 price >>	11101200	100	15	225	21,0
3F-125 price >>	11101400	125	15	280	27,0
3F-150 price >>	11101600	150	15	400	37,0
4F-50 price >>	11101900	50	10	60	11,0
4F-65 price >>	11102000	65	10	90	12,2
4F-80 price >>	11102100	80	10	150	20,0
4F-100 price >>	11102200	100	15	225	25,0

Electric drives, Esbe ARA 600 drives for three-way mixing valves. Esbe ARA 600 actuators are designed to automate the control of valves of the VRG, VRB, MG, G, F series< DN50. Выпускаются для 24В и 230 В (частота 50 Гц). Некоторые виды клапанов и приводов сконструированы таким образом, что между ними образуется специальное соединение «клапан – привод», образующее устройство с уникальными характеристиками точности и устойчивости. Диапазон действия приводов составляет от 90°. Various models provide different time closing, on average from 15 to 240 seconds. Reliability, efficiency and comfort in use are the main principles that guide Esbe specialists when developing Esbe servo drives ARA.

Model	vendor code	Email nutrition	Time closing	Control	An effort	Replaces
ARA639 price >>	12520100	AC/DC 24 V	15/30/60/120 sec.	0-10V/4-20mA	6 Nm	-
ARA642 price >>	12101600	AC 230 V	30 sec.	3-point with additional off	6 Nm	-
ARA651 price >>	12101200	AC 230 V	60 sec.	3-point	6 Nm	65
ARA652 price >>	12101700	AC 230 V	60 sec.	3-point with additional off	6 Nm	65M
ARA655 price >>	12120900	AC 230 V	60 sec.	2-point	6 Nm	68
ARA659 price >>	12520200	AC/DC 24 V	45/120 sec.	0-10V/4-20mA	6 Nm	62P
ARA661 price >>	12101300	AC 230 V	120 sec.	3-point	6 Nm	66
ARA662 price >>	12101800	AC 230 V	120 sec.	3-point with additional off	6 Nm	66M
ARA663 price >>	12100300	AC 24 V	120 sec.	3-point	6 Nm	62
ARA664 price >>	12100800	AC 24 V	120 sec.	3-point with additional off	6 Nm	62M

Electric drives, Esbe series 90 drives. Esbe series 90 compact reversible actuators are designed to control Esbe control valves of sizes DN 15-150, torque 5-15 Nm. These servo drives are supplied in three versions depending on the type of control signal: 2-point, 3-point or proportional, equipped with limit switches in extreme positions and have the ability to adjust the operating angle in the range of 30–180°. The Esbe 90 electric drive allows you to control the valve in manual mode, and the position is displayed on the indicator disk. In this series, actuators are available with both 24 V and 230 V power supplies and with different opening times. Esbe Series 90 actuators work effectively with the VRG100, VRG200, VRG300, VRB100, F, MG, G, BIV and H series valves.

Model	vendor code	Email nutrition	Time closing	Control	An effort
92 price >>	12050600	AC 24 V	60 sec.	3-point	15 Nm
92P price >>	12550100	AC/DC 24 V	60/90/120 sec.	0-10V/4-20mA	15 Nm
93 price >>	12051300	AC 24 V	240 sec.	3-point	15 Nm
94 price >>	12051700	AC 230 V	15 sec.	3-point	5 Nm
95 price >>	12051900	AC 230 V	60 sec.	3-point	15 Nm
95-2 price >>	12052000	AC 230 V	120 sec.	3-point	15 Nm
95M price >>	12052200	AC 230 V	60 sec.	3-point with additional off	15 Nm
95-2M price >>	12052100	AC 230 V	120 sec.	3-point with additional off	15 Nm
96 price >>	12052300	AC 230 V	240 sec.	3-point	15 Nm
97 price >>	12052500	AC 230 V	15 sec.	2-point	5 Nm
98 price >>	12052600	AC 230 V	60 sec.	2-point	15 Nm

Esbe controllers of the CRB, CRA, 90C, CUA series. Esbe's modern CRB, CRA, 90C and CUA series controllers have been designed to provide more high level comfort and energy savings. The CRA series includes combined drives and constant temperature controllers with the ability to regulate temperatures from 5 to 95°C. CRB controllers with integrated drive and user-friendly interface consist of a drive and a display with sensor room temperature, based on the readings of which the adjustment is made. ESBE CRB and CRA controllers are used with valves of the following series: VRG100, VRG200, VRG300, VRB100, G, BIV, H and HG, F<=DN40, Для клапанов серии F предназначены контроллеры CRA120, CRB 120.

Model	vendor code	Email nutrition	Time closing	An effort
CRA111 price >>	12720100	AC 230 V	30 sec.	6 Nm
CRA121 price >>	12742100	AC 230 V	120 sec.	15 Nm
CRA122 price >>	12742200	AC 24 V	120 sec.	15 Nm
CRB111 price >>	12660100	AC 230 V	30 sec.	6 Nm
CRB114 price >>	12661400	AC 230 V	30 sec.	6 Nm
CRB122 price >>	12662200	AC 230 V	30 sec.	6 Nm
CRC111 price >>	12820100	AC 230 V	30 sec.	6 Nm
CRC121 price >>	12842100	AC 230 V	120 sec.	15 Nm
CUA111 price >>	12640100	AC 230 V	120 sec.	15 Nm
CUA122 price >>	12642200	AC 230 V	120 sec.	15 Nm
90C-1A-90 price >>	12601500	AC 230 V	120 sec.	15 Nm
90C-1B-90 price >>	12601600	AC 230 V	120 sec.	15 Nm
90C-1C-90 price >>	12601700	AC 230 V	120 sec.	15 Nm
90C-3B-90 price >>	12603600	AC 230 V	120 sec.	15 Nm
90C-3C-90 price >>	12603700	AC 230 V	120 sec.	15 Nm

Thermostatic mixing valves Esbe VTA320, VTA370, VTA570 Esbe thermostatic valves of the basic series VTA 320, VTA 370 have high flow capacity and increased functionality. Depending on the model, they can be used in household systems hot water supply and underfloor heating. The main functions of these valves are asymmetric flow direction and burn protection. Anti-scald protection is based on automatic supply cut-off hot water when supply stops cold water. Coupling connection, valve body - DZR brass, spool - brass, EPDM seal, PN=10, coolant temperature max. 95C.

Model	vendor code	Accession	Kvs, m³/hour	Pace. range, °С	Weight, kg
VTA321-15 price >>	31100300	Rp 1/2"	1,5	20 - 43	0,45
VTA321-20 price >>	31100700	Rp 3/4"	1,6	20 - 43	0,48
VTA321-20 price >>	31100800	Rp 3/4"	1,6	35 - 60	0,48
VTA322-25 price >>	31101000	G 1"	1,6	35 - 60	0,48
VTA372-25 price >>	31200100	G 1"	3,4	20 - 55	0,52
VTA572-25 price >>	31702100	G 1"	4,5	20 - 55	0,86

VLA121 Series 2-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Accession	Bec, kg
VLA121-15-1.6	21150100	15	1.6	Rp 1/2"	1.0
VLA121-15-2.5 price >>	21150200	15	2.5	Rp 1/2"	1.0
VLA121-15-4 price >>	21150300	15	4	Rp 1/2"	1.0
VLA121-20-6.3 price >>	21150400	20	6.3	Rp 3/4"	1.2
VLA121-25-10 price >>	21150500	25	10	Rp 1"	1.3
VLA121-32-16 price >>	21150600	32	16	Rp 1 1/4"	1.8
VLA121-40-25 price >>	21150700	40	25	Rp 1 1/2"	2.7
VLA121-50-38 price >>	21150800	50	38	Rp 2"	4.2

VLA131 Series 3-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Accession	Bec, kg
VLA131-15-1.6	21150900	15	1.6	Rp 1/2"	1.1
VLA131-15-2.5	21151000	15	2.5	Rp 1/2"	1.1
VLA131-15-4 price >>	21151100	15	4	Rp 1/2"	1.1
VLA131-20-6.3 price >>	21151200	20	6.3	Rp 3/4"	1.3
VLA131-25-10 price >>	21151300	25	10	Rp 1"	1.5
VLA131-32-16 price >>	21151400	32	16	Rp 1 1/4"	2.1
VLA131-40-25 price >>	21151500	40	25	Rp 1 1/2"	3.0
VLA131-50-38 price >>	21151600	50	38	Rp 2"	4.7

VLE122 Series 2-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Accession	Bec, kg
VLE122-15-0.25	21250100	15	0.25	G 1"	1.0
VLE122-15-0.4 price >>	21250200	15	0.4	G 1"	1.0
VLE122-15-0.63 price >>	21250300	15	0.63	G 1"	1.0
VLE122-15-1 price >>	21250400	15	1	G 1"	1.0
VLE122-15-1.6 price >>	21250500	15	1.6	G 1"	1.0
VLE122-15-2.5 price >>	21250600	15	2.5	G 1"	1.0
VLE122-15-4 price >>	21250700	15	4	G 1"	1.0
VLE122-20-6.3 price >>	21250800	20	6.3	G 1 1/4"	1.2
VLE122-25-10 price >>	21250900	25	10	G 1 1/2"	1.4
VLE122-32-16 price >>	21251000	32	16	G 2"	1.8
VLE122-40-25 price >>	21251100	40	25	G 2 1/4"	2.6
VLE122-50-38 price >>	21251200	50	38	G 2 3/4"	4.3

VLE132 Series 3-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Accession	Bec, kg
VLE132-15-1.6	21251300	15	1.6	G 1"	1.1
VLE132-15-2.5 price >>	21251400	15	2.5	G 1"	1.1
VLE132-15-4 price >>	21251500	15	4	G 1"	1.1
VLE132-20-6.3 price >>	21251600	20	6.3	G 1 1/4"	1.3
VLE132-25-10 price >>	21251700	25	10	G 1 1/2"	1.6
VLE132-32-16 price >>	21251800	32	16	G 2"	2.0
VLE132-40-25 price >>	21251900	40	25	G 2 1/4"	2.9
VLE132-50-38 price >>	21252000	50	38	G 2 3/4"	4.6

VLA325 Series 2-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Rod stroke, mm	Bec, kg
VLA325-15-1.6 price >>	21200100	15	1.6	20	2.1
VLA325-15-2.5 price >>	21200200	15	2.5	20	2.1
VLA325-15-4 price >>	21200300	15	4	20	2.1
VLA325-20-6.3 price >>	21200400	20	6.3	20	2.6
VLA325-25-10 price >>	21200500	25	10	20	3.2
VLA325-32-16 price >>	21200600	32	16	20	4.6
VLA325-40-25 price >>	21200700	40	25	20	5.8
VLA325-50-38 price >>	21200800	50	38	20	8.0

VLB325 Series 2-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Rod stroke, mm	Bec, kg	Replaces
VLB325-65-63 price >>	21220100	65	63	25	23.0	VLB225 21203100
VLB325-80-100 price >>	21220200	80	100	45	30.0	VLB225 21203200
VLB325-100-130 price >>	21220300	100	130	45	45.6	VLB225 21203300
VLB325-125-200	21220400	125	200	45	55.0	VLB225 21203400
VLB325-150-300	21220500	150	300	45	71.0	VLB225 21203500

VLA335 Series 3-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Rod stroke, mm	Bec, kg
VLA335-15-1.6	21200900	15	1.6	20	2,5
VLA335-15-2.5 price >>	21201000	15	2.5	20	2,5
VLA335-15-4 price >>	21201100	15	4	20	2,5
VLA335-20-6.3 price >>	21201200	20	6.3	20	3,2
VLA335-25-10 price >>	21201300	25	10	20	3,8
VLA335-32-16 price >>	21201400	32	16	20	6,6
VLA335-40-25 price >>	21201500	40	25	20	7,5
VLA335-50-38 price >>	21201600	50	38	20	10

VLB335 Series 3-Way Control Valve

Model	vendor code	DN	Kvs, m³/hour	Rod stroke, mm	Bec, kg	Replaces
VLB335-65-63 price >>	21221100	65	63	25	19.0	VLB235 21203600
VLB335-80-100 price >>	21221200	80	100	45	24.0	VLB235 21203700
VLB335-100-130 price >>	21221300	100	130	45	32.0	VLB235 21203800
VLB335-125-200	21221400	125	200	45	46.0	VLB235 21203900
VLB335-150-300	21221500	150	300	45	61.0	VLB235 21204000

	Seat control valves ESBE VLC125 ESBE VLC125 2-way flanged control valves are used to regulate the flow of coolant. The valves are made of high-strength cast iron, which allows their use in heating and cooling systems with pressures up to 25 bar. The VLC125 series has flange connections and is produced in sizes DN15-DN50. The valves are designed for automatic operation in combination with ESBE electric actuators.
VLC125-40-16	21302600	40	16	20	7.7
VLC125-40-25 price >>	21301100	40	25	20	8.8
VLC125-50-38 price >>	21301200	50	38	20	12.6

	Electric actuators for seated control valves ESBE Linear series ESBE drives Available in 230 V or 24 V, with analogue or pulse control. The actuators have different forces and are adapted for valves with different strokes. A separate line of actuators with a return spring is also presented. Depending on the model, valves equipped with such actuators can be normally closed or normally open. ALD121 22150500AC/DC 24 V	2200	20 sec.	ALD144 22151200
ALH134 price >>	22220100	3-position/0...10 V	AC/DC 24 V	900	15 sec.	-
ALH234 price >>	22221100	3-position/0...10 V	AC/DC 24 V	900	15 sec.	-

Three way mixing valve has a fairly simple device. It consists of a body with two inputs and one output, as well as a specially shaped rod on which a handle (for manual control) or an electric drive (for automatic control of the flow temperature) is installed. The rod is capable of rotating along a vertical axis, blocking to one degree or another the inlet of hot or cold water, due to which a certain flow ratio is created and, as a result, a mixture of a given temperature is obtained at the output. The body material of a three-way valve is most often brass alloy or cast iron. The rod is made of brass, cast iron or stainless steel.

Three way valve control is carried out using an electric drive mounted on the rod, which is supplied separately. The main characteristics of electric drives are: time of rotation of the rod by 90 degrees; the force with which the drive is capable of rotating the rod; electrical voltage and control signal (two-point, three-point, proportional). The electric drive receives a signal from the general building controller, which, based on the readings of various temperature sensors, calculates the position of the three-way valve stem to obtain the specified outlet temperature of the coolant.

Selecting an electric drive for a rotary three-way mixing valve. For coupling mixing valves ESBE actuators of the ARA600 series are used, for flanged cast iron valves - ESBE 90 series. If the valve is to be used as a diverter, the actuator must be with 2-position control. If used as a mixer, then 3-point control or proportional control is required: 0-10V signal. Next, select the desired combination of stem rotation time and valve purpose. For domestic hot water supply, 60 seconds will be enough, and to supply coolant to radiators, electric drives with a rod rotation time of 120 seconds are most often used. Monitor if necessary external equipment depending on the position of the valve (for example, turn off an unnecessary pump, etc.), we determine whether an auxiliary switch is needed. When all the technical characteristics of the electric drive are determined, it will not be difficult to choose from the presented models exactly the one that will perform all the specified functions.

Three-way mixing valves (taps, valves) and actuators ESBE

Esbe three-way valves are usually used as mixing valves, but can be used as switching or separating valves. It is necessary to ensure that the pressure rating, pressure drop and leakage are within acceptable limits. This information given for each valve.
Four-way valves are usually used when a high return coolant temperature is required (usually for solid fuel boilers). In systems with two heat sources or a storage tank, valves will help prioritize the use of an inexpensive heat source while maintaining good temperature separation in the storage tank.
Operating principle of Esbe 3-way valves VRG130. The required temperature in the system is achieved by adding required quantities water coming from the return pipe supplied to the boiler.

Technical characteristics of three-way valves Esbe VRG131, internal thread

vendor code	DN	Kvs	Compound	A mm	B mm	C mm	D mm	E mm	Weight kg
11600100	15	0,4	Rp 1/2"	36	72	32	50	36	0,4
11600200	15	0,63	Rp 1/2"	36	72	32	50	36	0,4
11600300	15	1	Rp 1/2"	36	72	32	50	36	0,4
11600400	15	1,6	Rp 1/2"	36	72	32	50	36	0,4
11600500	15	2,5	Rp 1/2"	36	72	32	50	36	0,4
11600600	15	4	Rp 1/2"	36	72	32	50	36	0,4
11600700	20	2,5	Rp 3/4"	36	72	32	50	36	0,43
11600800	20	4	Rp 3/4"	36	72	32	50	36	0,43
11600900	20	6,3	Rp 3/4"	36	72	32	50	36	0,43
11601000	25	6,3	Rp 1"	41	82	34	52	41	0,7
11601100	25	10	Rp 1"	41	82	34	52	41	0,7
11601200	32	16	Rp 1 1/4"	47	94	37	55	47	0,95
11603400	40	25	Rp 1 1/2"	53	106	44	60	53	1,68
11603600	50	40	Rp 2"	60	120	46	64	60	2,3

Technical characteristics of three-way valves Esbe VRG132, external thread

vendor code	DN	Kvs	Compound	A mm	B mm	C mm	D mm	E mm	Weight kg
11601500	15	0,4	G 3/4"	36	72	32	50	36	0,4
11601600	15	0,63	G 3/4"	36	72	32	50	36	0,4
11601700	15	1	G 3/4"	36	72	32	50	36	0,4
11601800	15	1,6	G 3/4"	36	72	32	50	36	0,4
11601900	15	2,5	G 3/4"	36	72	32	50	36	0,4
11602000	15	4	G 3/4"	36	72	32	50	36	0,4
11602100	20	2,5	G 1"	36	72	32	50	36	0,43
11602200	20	4	G 1"	36	72	32	50	36	0,43
11602300	20	6,3	G 1"	36	72	32	50	36	0,43
11602400	25	6,3	G 1 1/4"	41	82	34	52	41	0,7
11602500	25	10	G 1 1/4"	41	82	34	52	41	0,7
11602600	32	16	G 1 1/2"	47	94	37	55	47	0,95
11603500	40	25	G 2"	53	106	44	60	53	1,69
11603700	50	40	G 2 1/4"	60	120	46	64	60	2,3

How does Esbe three way valve work?

The required temperature in the heating system is ensured by proportionally adding colder coolant to the hotter coolant flow from the boiler.

How does a four way valve work?

Valves of this type have a double mixing function, that is, the hotter coolant is mixed with the colder coolant supplied to the boiler. This allows you to increase the temperature of the coolant in the return (returning to the boiler) and reduce the risk of low-temperature corrosion, which significantly extends the operating time of the boiler.

Installation examples and hydraulic characteristics of Esbe mixing valves of the VRG and 3F series

Esbe VRG

Esbe 3F

Operating principle of Esbe 3, 4, 5 way and bivalent mixing valves

Advantages of Esbe mixing valves:

• Easy to install drives.
• Compact size, lightness and ease of installation - installation requires a minimum of tools.
• Minimum dimensions of mixing valves, facilitating installation in cramped conditions.
• Reliable valve installation with internal thread. The key edges are wider and have two edges instead of six. This provides a better grip and less risk of the pipe wrench or box wrench slipping.
• More flexible cable connection. The drives are supplied complete with a connecting cable and an additional cable contact. The advantage is that you can run a separate cable, for example, directly to the circulation pump without connecting through a central controller.
• High control accuracy.
• Minimum delay and high accuracy of the entire cycle, from complete closure Until the valve is fully opened, the valves provide the ability to use the full angle of rotation. This adjustment is as close to ideal as possible and provides increased comfort and reduced energy consumption.
• Esbe valves are renowned for their minimal internal leakage and have been awarded the " Best product plumbing equipment 2003".
• The leakage rate is reduced from 0.1 to 0.05%. And this is achieved at double pressure, i.e. at 100 kPa (1.0 bar). A valve that provides tighter closure is difficult to find and buy on the rotary valve market.
• Easy and convenient regulation, high performance
• Reliable and have a long service life

What is Kvs? Each mixing valve has a Kvs characteristic ( throughput m3/h at a pressure loss of 1 bar). The Kvs parameter helps determine which valve is needed for your heating system. You can determine the Kvs of the Esbe valve using the graph below.

Esbe mixing valve size selection

Selection of Esbe mixing valves of the VRG and VRB series for floor or radiator system heating.
We start from the thermal power of the boiler in kW (for example, 25 kW). Move vertically to the selected one temperature regime t (for example 15°C). Next, we move horizontally to the shaded area (pressure drop range 3-15 kPa) and select a lower value of the Kvs coefficient (for example, 4.0).
In this case we select desired type valve with coefficient Kvs=4.0

The Kvs value is taken for flow in one direction only
Valid for 4-way valves double meaning pressure drop P indicated on the graph.

Materials used, coolant requirements.

The VRG, VRB and 5MG series valves are manufactured from a special brass alloy (DZR Dezincification Resistant Brass, CW 602N), offering advantages that cannot be achieved in designs combining cast iron and brass. This allows them to be used for water supply systems with sanitary hot water.
Selective corrosion of brass(ordinary brass releases zinc, leaving a brittle, porous copper mass) is the most dangerous type of corrosion, leading to a rapid decrease in service life and loss of functionality. Coating the inner surface of valves and valves with a layer DZR reduces the likelihood of contaminants and sediment sticking to the valves, which ensures reduced wear and more clean water. The alloy also contains less lead than many other products. and is especially suitable for installation plumbing systems cold water supply.
All other ESBE valves can only be used in closed systems with water free of dissolved oxygen.
To protect against freezing, it is allowed to use a coolant containing glycol and additives that neutralize dissolved oxygen, with a concentration of up to a maximum of 50%. When glycol is added to water, its viscosity increases and its heat capacity changes, so this must be taken into account when choosing a valve. If the percentage of glycol is 30-50%, then in this case it is necessary to select another valve with a higher Kv coefficient by one level. Lower glycol content does not affect the valve's action.

Specialists of the company "Thermogorod" Moscow will help you choose, buy, and install ESBE fittings, will find an acceptable solution at a price. Ask any questions you are interested in, a telephone consultation is absolutely free, or use the form "Feedback"
You will be satisfied by cooperating with us!

The ESBE type three-way valve is just one of the elements of the life support systems of a residential building. On the one hand, this simple design. On the other hand, it performs an important task in engineering networks. Demand creates supply. There are many models on the market presented by different manufacturers. Three-way valves produced under the ESBE brand have good performance characteristics.

Some useful knowledge

Three way rotary valve ESBE

The three-way valve is a control device in liquid piping systems. working environment. Speaking in simple language, built into the design of the heating network, it will act like a well-known faucet that switches or mixes flows. Installing the valve allows you to solve a number of practical problems:

• Redirection of flows coming from different pipelines.
• Reaching the desired temperature working fluid by mixing hot and cold flow.
• Receiving a jet with constant temperature through dynamic redirection.

Difficult? Only at first glance. In order to understand the principle of operation of the device, let's consider its design features.

Design

A three-way mixing valve has a control element, which is a rod or ball. The rod moves vertically, the ball moves around its axis. Since the movement of the control element does not completely block the flow of the working fluid, it is mixed and redistributed. The simplest models are a regular faucet. Their main advantage is low cost and design simplicity. The disadvantage is the impossibility of stabilizing the outlet temperature. Despite the disadvantages, the faucet can be installed in underfloor heating systems. Now let's imagine a faucet with an electric drive. This design is already more functional, since it is able to regulate the temperature automatically. A simple valve is a balancing valve. Its main function is to adjust the cross section for the passage of the work flow. Conventionally, the principle of its operation can be described as follows:

• The handle is turned 50% - uniform mixing of the two flows, since the inlet valves will be equal.
• The handle is turned 100% - the first valve is fully pressed and blocks the movement of liquid flow.

Modifications on the market may have different handle rotations, but the principle of their operation remains the same. The tap and its position are manually adjusted, thereby ensuring a balance between the two flows.

Kinds

There are several types of such devices:

• With hydraulic drive.
• With pneumatic drive.
• Electrically driven.

A motorized three-way valve, such as the ESBE model, will have a slightly different operating principle. The electric drive performs the function of a conventional thermostat, which allows you not only to mix flows, but to maintain set temperature. When the temperature decreases/increases, the drive automatically changes the position of the shut-off valves, increasing or decreasing the cross-section of the hot water flow. At the same time, the cross section at the point of inlet of the cold flow also changes. The result is water with a constant temperature. The ESBE crane does not require any human intervention. Its operation is regulated automatically.

Valve operating principle

Equipped with electric actuators and thermostats, ESBE valves are equally suitable for use in heating and hot water systems. In principle, the valve can be installed in any pipeline where it is necessary to mix two liquid streams with constant temperature maintenance. No matter how high-quality and reliable a three-way valve with a thermostat is, it will have one drawback that is characteristic of absolutely all devices of this type.

This disadvantage is the strong narrowing of the entrance points. The narrowed cross-section of the inlet point, in turn, increases hydraulic resistance.

Such a faucet will work well in water supply systems. ESBE valves are suitable for installation in underfloor heating systems, but require a special connection diagram. In addition to the designs described above, three-way thermostatic valves are available on the market. These devices are often confused with each other, but they are still completely different. Thermostatic models have a thermostat with a remote sensor, but they differ not only in this element, but also in the principle of operation. Unlike conventional models, in thermostatic taps the flow is regulated at only one point, the remaining two are open and their cross-section does not change. When choosing such a design, you need to check whether there is any narrowing at point 2, otherwise hydraulic resistance will lead to difficulties in the operation of the device. It may be necessary to install a mixing valve in an alternative ring to minimize the problem.

Connection diagrams

Three-way valve - connection diagram

Almost all three-way valves on the market are connected according to the same circuit. Let's look at it using ESBE cranes as an example. Let's start with water supply systems, since this is where the mixer tap is used most often. The main purpose for which the valve is installed is to reduce the risk of backflow.. Between the two streams - cold and hot water - there will inevitably be a pressure difference. It can lead to backflow. When installing ESBE valves, such incidents rarely occur. In heating systems, ESBE valves are used in only three directions:

• In mixing units of “warm floor” systems.
• To stabilize the temperature of the liquid flow in the incoming boiler pipeline.
• To reduce the coolant supply from high temperature from the boiler to the pipeline.

Valve in the mixing unit

Let's look at how the ESBE tap is used in underfloor heating systems. The mixing unit creates an additional circuit in the system. WITH distribution manifold it is connected at two points, which ensures constant circulation of the liquid at the outlet. At the inlet, flow is only provided if additional heat is required. A valve with a thermostat is connected to the mixing unit. Since at point 2 all valves, including ESBE, are narrowed, insufficient pump flow may be observed. To increase it, a second line is created to reduce energy consumption by pumping equipment. A second line is not always required. Some models of three-way valves have sufficient passage.

Diagram of a heated floor with a three-way valve

If there is insufficient flow power on the first line, the thermostat will not be able to open the passage to the required amount . The problem is easily solved in two ways: by narrowing the second line or installing it on balancing valve. The second method is more productive. It allows you to fine-tune the flow. You can connect a three-way valve using another scheme that does not require installation balancing valve. To do this, pumping equipment is connected to the second line. As a result, the temperature of the inlet and outlet streams is compared. A faucet with a thermostat can be installed in systems with one circuit. The simplest example of such systems is heated floors in small rooms. Creating a mixing unit here , with its considerable dimensions , is not always justified. It is better to connect a heated floor with one circuit. A three-way valve with a thermostat is installed on the return line, through which the cooled coolant flows. In this case, the thermostat will move the shut-off valves, increasing the cross-section and opening the flow. After heating the pipe, the temperature sensor reads the data and reduces the flow.

For heating boilers

Three-way valves for heating boilers should be considered separately. The main task of their installation is to prevent cold coolant flow into the incoming pipeline connected to the boiler. Otherwise, condensation will begin to form on the pipes, and temperature changes in the system will lead to its deformation at the joints. There is no need to talk about the consequences of such deformations. IN best case scenario a small leak forms, in the worst case, the system will have to be completely changed.

Three-way valve in a heating system

It is especially important to connect shut-off valves to solid fuel boilers, characterized by significant temperature changes during operation. Connecting a mixing valve makes it possible to ensure that liquid with a temperature below 50 degrees does not enter the inlet of the boiler equipment. As a result, the temperature difference decreases, negative impact cold with all the ensuing consequences is reduced. It is recommended to install mixing valves in systems with plastic piping. The goal here is to prevent high temperature coolant from entering the pipeline. Despite all the advantages of polymers, they do not withstand frequent increases in temperatures above operating parameters. Under such operating conditions, the pipeline quickly collapses. Temperatures recommended by experts range from 75 to 85 degrees. Installing valves can solve many problems, but the model must be selected exactly according to technical characteristics utility network, and must have sufficient passage.

Conclusion

The simplest shut-off valves - three-way mixing valves - important element engineering communications. Modern models created at the intersection of old traditions and modern technologies, allowed us to achieve excellent results their use for a variety of purposes.

Esbe products are quite popular today. is no exception. It is one of many elements that are included in residential buildings.

Need for use

This design, on the one hand, is quite simple, but on the other, it is designed to perform an extremely important task, being part of engineering networks. Everyone knows the rule that demand creates supply, which is why on the market today you can find many models that are represented by all kinds of manufacturers. However, valves produced by Esbe have excellent performance characteristics. A three-way valve of this type can be purchased at an affordable cost. This is confirmed by user reviews.

Design features

Today you can find a wide range of Esbe products. The three-way valve is no exception. This element has a regulating component, which is a ball or rod. The latter moves vertically, but as for the ball, its movement occurs around its axis. Due to the fact that the movements of the control element do not allow the flow of liquid to be blocked, distribution and mixing occurs. The most common and simple models are cranes.

Main advantage

Their main advantage is low cost and simplicity. However, if you need to adjust the Esbe three-way valve, then you should exclude the purchase simple devices, since they have a main disadvantage, expressed in the inability to stabilize the temperature regime at the outlet.

Carrying out installation work

Almost all of the described valves that are on the market are connected based on the same circuit. Mixing taps are most often used in water supply systems. Their main goal is to reduce the risk of backflow. There will inevitably be a pressure difference between the cold and hot water flows. It may cause backflow. If you install a valve, you will not encounter such a problem. If we are talking about a heating system, then such devices are used exclusively in three directions, namely to stabilize the temperature regime of the coolant flow in the incoming pipeline of boiler equipment, to reduce the supply of high-temperature water from the heating device to the pipeline, as well as in the conditions of mixing units of systems like a warm floor.

Connection in the mixing unit

If you are interested in Esbe products, you can purchase a three-way valve at any relevant store. One has only to first consider how the faucet is used in a heated floor system. The application allows you to create an additional circuit in the system. It is connected to two points, which allows for constant circulation of water at the outlet. As for the input, the flow is provided only if there is a need to obtain additional heat. A valve with a thermostat is connected to the mixing unit. Due to the fact that all the valves are located at the point, they are narrowed, which can cause insufficient flow pumping equipment. To increase it, it is necessary to create an additional line, with which you can reduce the electricity consumption of the pump. During the installation process, it is worth remembering that a second line is not always required. A number of valve models have a fairly large bore. The Esbe three-way valve, the connection diagram of which can be developed based on the instructions presented in the article, may suggest insufficient flow power in the first line. In this case, the thermostat is not able to open the passage of the required size. This issue can be easily resolved in two ways: the first involves narrowing the second line, while the other option is to install it on it. The latter option is considered more productive, as it allows you to adjust the flow.

Alternative option for installation work

The Esbe three-way valve can be installed using another method. It does not involve the use of a balancing valve. The pump is connected to the second line, ultimately the temperature of the output and input streams is equalized. The faucet with thermostat is located in systems with one circuit. The simplest example of such systems is heated floors in small rooms. In this case, it is not always justified to create a mixing unit with large dimensions. It would be best to connect the underfloor heating system using one circuit. If you are thinking about how to connect an Esbe three-way valve with an electric drive, then it can be placed on the return line through which cooled water flows. In this case, the thermostat will cause the shut-off valves to move, the cross-section will be increased, and the flow will be open. As soon as the pipe is heated, the temperature sensor will detect this and reduce the flow.

Installation of a valve for a heating boiler

This issue, according to professionals, must be considered separately. The main task of installation is to prevent the entry of cold water flow into the incoming pipeline, which is connected to heating equipment. If this requirement is not taken into account, condensation will form on the pipes, and temperature changes will lead to deformation at the joint points. If we talk about the consequences of deformation, then in the best case you will encounter a small leak, while in the worst case the system will need to be completely changed. In order to avoid the need for repair of the Esbe three-way valve, it is important to connect the shut-off valves to the boiler, which is characterized by temperature changes during operation. If you install a mixing valve, you can ensure that water with a temperature below 50 degrees does not enter the equipment inlet. Temperature differences are significantly reduced, and the negative effects of cold are reduced. Experts advise supplementing systems that use plastic pipelines with mixing valves. In this case, the task is to prevent high-temperature water from entering the pipeline. Despite the fact that polymers have many advantages, they do not cope well with frequent temperature changes that may be higher than operating temperatures.

When exposed to such conditions, the pipeline system soon fails. Experts advise choosing Esbe products. The three-way valve, the installation instructions for which are presented in the article, has been manufactured by this company for a long time. If you use this element, you will be able to provide temperature readings ranging from 75 to 85 degrees, which are recommended by experts. Installing a valve can solve many problems, but the model must be selected in accordance with the characteristics of the network, and also have a sufficiently large passage.

Adjustment features

When purchasing Esbe products - a three-way valve, installation and adjustment instructions for which are presented in the article - you must remember that with the help of this device it is possible to mix cooled water from the return to the supply. For high-quality regulation, not only a three-way valve is installed in the system, but also four way valve, which must be present in the heating system. It is placed directly in front of the heated floor circuit. The handle allows you to open the bypass, while circulation pumps and the equipment draws in cooled coolant from the return line, where it mixes with hot water. In order for the adjustment to be made as efficiently as possible, you need to understand what happens at certain positions of the handle. The latter can be set to the bypass shut-off position, in which case the hot coolant will flow into the pipe of the underfloor heating system. As for the mode in which the supply is shut off, water enters the tank and circulates in a small circle. The third position allows you to recharge the supply from the return system without blocking the full cycle of water passage throughout the entire circuit.

Conclusion

Specialists in Lately It is increasingly recommended to purchase Esbe brand products. The three-way valve, the instructions, the electrical diagram of which are presented in the article, is just an example of this. It can act as an indispensable element of the heating system and part of the boiler equipment, but it is important to choose the right model and install it in accordance with the technology.