Grundfos automatic pipe coupling system. Automatic pipe couplings
Sewer or plumbing systems are complex structures made of many elements: straight pipes, flexible and rigid adapters, composite connectors assembled from many segments. The flawless operation of the system as a whole depends on the quality of the design and installation of fittings. It is important to understand the characteristics connecting elements, and in the nuances of their installation. Pipe coupling - simple in design, but functional important detail.
Video review of a pipe coupling from the manufacturer
Purpose and design of couplings
Pipes are nothing more than cylindrical metal or plastic pieces that are hollow inside. To connect them, a whole set of additional devices is required, from simple adapters to complex corner connectors. It is the fittings that provide strong and durable units that can be disassembled if necessary. Suppose a pipe coupling TP 4 is designed for a stable and hermetically sealed connection of steel products with a metal hose, but the threadless installation method does not allow replacement after some time.
The design of the transition elements is simple:
- central rigid part (base);
- side fittings;
- screw;
- cap.
There are fittings various shapes and type of fixation. This depends on how the device is attached to the pipes.
Cast iron and steel couplings large diameter used for connecting underground pipelines
Types of pipe fittings
A large number of various adapters are explained complex design building networks. The simplest is considered to be a pipe-pipe connection; the most complex is a unit that fixes products of various diameters with an angle of inclination or rotation.
Often, double-sided adapters are needed to connect the pipeline according to type “C” - these are double-socket couplings PVC 110. They “tighten” the ends from the outside sewer pipes large diameter. For products with a smaller diameter, rigid plastic can be replaced with flexible one.
Biracial pipe couplings expand at the edges and are equipped with rubber seals on the inside
Features of flexible adapters
The flexibility of the fitting material allows you to increase the functionality of the network: make an angular bend or make an outline. For example, a pipe coupling MT32 (options from MT22 to MT50 are popular) is necessary to connect a flexible connection with a rigid product, but is itself made of durable aluminum. In this case, the flexibility of the fitting is not needed, since one of the elements is already movable.
In contrast to aluminum and zinc parts, polypropylene fixtures allow you to adjust the position of communications. For example, coupling flexible pipe-pipe With degree of protection IP65 due to the elasticity of the material, it is used for connecting rigid products at any angle. The only condition is the use of pipes of the same diameter.
Flexible pipe-pipe coupling IP40 – a product made of elastic plastic
Automatic fixtures
The main purpose of the automatic pipe coupling system is contactless installation and disconnection of parts of drainage or sewer communications. Automation allows you to remove the pump from the pressure pipeline installation and take it to the top without lowering it into the well. Reinstallation is carried out in a similar way.
At the bottom of the well, an elbow is attached using anchors - a transition unit between the pressure pipe and the pump. The supports for lifting the installation are two guide profiles, also attached to the knee. The pump is lowered down on a chain or cable along the guides and secured in a flange manner. Engagement occurs automatically.
This is what a pipe looks like automatic clutch For sewage pumps
Gebo connectors
The popularity of products from branded companies is achieved only by exceptional quality and 100% functionality. Such, for example, are Gebo couplings for metal pipes, which are unique both in terms of technical characteristics and convenience. installation work. Even a pressure of 10 bar and a carrier temperature of +75˚C are not obstacles to their use.
Installation experts highlight the main advantages of Gebo products:
- it is possible to connect pipes with a deviation of up to 3˚ from common axis;
- suitable for multiple installations (with additional replacement of seals);
- differ in the ability to change sizes, which is important for adjusting the dimensions of communications;
- To change the wiring, it is possible to insert tees without changing the integrity of the structure.
Years of continuous operation without breakdowns or repairs – main indicator quality of Gebo fittings.
Sample of Gebo brand coupling - a product for connecting polymer and metal pipes
Coupling installation methods
Hardware connect threaded fittings, which cannot be called an advantage, because welds are still more reliable. The only drawback of welding is the inability to quickly disassemble the communication network.
For resistance welding of polymer pipes, a special apparatus is required
Plastic products I bind using both the threaded method and compression, and with the help of welding machine. The latter is effective for welding PE pipes with couplings. Polypropylene and polyethylene begin to melt when they reach a certain temperature, as a result, the polymers of the adapters and pipes bond at the molecular level. Of course, the connector must be made of a material similar to other products.
When installing adapters and connectors, it is important not only the quality of the material and product characteristics, but also the skill of installation, since any mistake entails a pipeline failure.
Video instruction: connecting any pipes using the UR-01 coupling
Automatic pipe couplings are used for ease of installation of fecal, drainage and sewage pumping units to the pressure main. An advantage to the reliability of this connection is convenience and safety when lifting equipment for routine inspection or routine maintenance.
The automatic pipe coupling consists of 3 parts: the main part, the top mount of the guide pipes and the pump mount. The main part of the pipe coupling is attached to the bottom of the well anchor bolts. Two guide pipes having the length of the fecal pit are inserted into the main part of the pipe coupling. The upper parts of the pipes are attached to the surface of the fecal pit. The third part of the pipe coupling to which it is attached fecal pump, slides along the guides. Together with the main part it constitutes plug connection pump
Automatic pipe couplings can be purchased separately or as a set.
The couplings are compatible with pumps from any manufacturer (if the DN of the flange used by that manufacturer corresponds. DN65 – DN65 Coupling; DN80 – DN80 Coupling).
Pumps for installation in pumping stations
| Coupling size | Pump models to be equipped with couplings |
|---|---|
| Coupling DN 50 | TsMF 10-10 KNS dir. 220V, TsMF 16-16 KNS dir. 220V, TsMF 16-16 KNS dir. 380V |
| Coupling DN 65 | 4GNOM 25-20, 4GNOM 40-25, 4GNOM 50-25, TsMK 16-27 dir, TsMK 16-27, NPK 20-22, NPK 30-30, NPK 40-22 |
| Coupling DN 80 | GNOM 100-25, GNOM 50-50, TsMK 50-40, TsMF 50-10 dir, TsMF 40-25 dir, TsMF 65-14 dir, TsMF 85-14 dir, TsMK 40-25, PPK 100-20 |