Knife wafer pipeline valves
Pipelines intended for pumping working fluids are equipped with special fittings to completely or partially block the flow. The pipeline valve is selected taking into account:
- Diameter and throughput of the pipe.
- Specifics of the pumped working fluid (gas, liquid, viscous suspension).
- Values of the generated working pressure.
Practical an option is considered to be a pipeline gate valve interflange. She has no pipes. The width of the passage part of the product is equal to the width of the working chamber, in which the flow is blocked.
Schematic diagram of the device
The design diagram of a gate valve includes a body, a rotary mechanism and a gate - a plate of small thickness, which descends into the seat and blocks the movement of the working fluid through the pipeline with its plane. The product can be used as a flow or head control valve.
Some models can be equipped with a knife or wedge gate - the lower part of the plate is sharpened according to the principle of a cutting tool (knife). This allows you to more tightly enter the seat (saddle) and work effectively in the conditions of pumping dense or solids-containing working fluids.
Installation and classification
A flanged gate valve can be installed between two pipes or in a pre-prepared section of one pipe. This allows installation in any convenient place in the pipeline system. Fixation is carried out by welding. The products are produced according to established international parameters and have a classification generally accepted for engineering and technical reference books, for example, a water supply gate valve with an interflange:
- The body material is cast iron.
- Maximum pressure is 10 atm .
- Internal diameter of the working chamber.
- Material of the stem and gate.
- Tightness class.
This type of shut-off valves are tested on the test benches of the manufacturer and are subject to mandatory certification in independent accredited laboratories.
For more information and to learn about the types of sliding gate valves, please visit the website of the UKRSPETSARMATURA company, which supplies them from enterprises of well-known manufacturers. All items presented on the pages of the online catalog are accompanied by a detailed technical description and photographs for clarity of choice.
Consultation of customers interested in purchasing is carried out by the manager of the enterprise by phone. It is possible to make a purchase and order delivery (any region of the country) in an online format. All products sold are guaranteed quality.