• market@dagaotech.com
  • +86-577-67318591
    Share

Special Valves

Foot Valve

Foot valve is a special type of check valve that has a built-in strainer.It is installed at the intake side of a suction pipe and pump.its purpose is to prevent the loss of prime when the liquid source (wet well) is lower than the pump.prime is designed as the charge of loquid required to begin pumping action and priming is the process of filling the pump and suction pipe with liquid.The check valve part of the foot valve opens when the pump starts to allow liquid to enter the suction pipe and pu…

Sleeve Type Soft Sealing Plug Valve

Sleeve Type Soft Sealing Plug Valve are non-lubricated quarter-turn valves that achieve sealing through the use of a compressible sleeve as a sealing member. In many applications they operate virtually maintenance free for decades.Our valves are used for on/off and throttling service in demanding process applications with media temperatures ranging from -29℃ to 180℃. Standard sizes from 1/2" to 14", ANSI class 150-900. Body & plug materials range from cast steel and stainless stee…

High Pressure Threaded Needle Valve

High Pressure Threaded Needle Valve are an ideal option for isolating or throttling applications. The self centering, non rotating stem ensures perfect seating. The rigid design gives repetitive bubble tight shut off, easy Standard Specifications :End connection : NPT / BSPP / BSPT Maximum working pressure :700 bar / 10000 PSI at 1000 C(see pressure temperature chart on Page No. 4 for higher temperature applications)Material : 316 SS / 316L SS / 304 SS / Carbon steel MOC in accordance with NACE M…

Pilot Operated Pressure Reducing Valve

Pilot Operated Pressure Reducing Valve, similar to Spirax Sarco Design, mainly used for steam system to reduce pressure, which is superior to normal piston type steam pressure reducing valve.Pressure reducing valve the new type pilot extra-huge membrane pressure reducing valve developed by our company. It is greatly improved on basis of normal pressure reducing valve. The membrane use new material, enlarging the working area, so the slight change of upper pressure or lower pressure can be fed bac…

Rubber,PTFE,PFA,F46 Lined Diaphragm Valve

Rubber,PTFE,PFA,F46 lined Diaphragm Valve have two types : weir (saddle) type and "straight-way" type .The weir type diaphragm valve has its two ports in line with each other on the opposite sides of the valve, whereas the weir type has the in/out ports located at a 90 degree angle from one another. The weir type is the most common in process applications and more commonly used as a tank bottom valve.

Top