Piping Materials : Special Valves

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There are different kinds of special valves used in EPC Industry along with regular ones like Gate, Globe, Check, Butterfly Valves etc. These are used for special services or special purposes.

INDEX

  1. Slide / Knife Gate Valve
  2. Pinch Valve
  3. Foot Valve
  4. Line Blind Valve
  5. Squeeze Valve

Slide / Knife Gate Valve

This valve isused for handling paper pulp slurry and other fibrous suspensions, and for low pressure gases. It will not function properly with inflow on seat side.  This valve is suitable for regulating flow if tight closure is not required.

Photos

Slide Gate Valve
Slide Gate Valve

Youtube Videos

Vortex Roller Slide Gate Valve

Slide Gate Valve

TPV Slide Gate Valve

Pinch Valve

Thes valves are suited to regulating flow of difficult liquids, slurries and powders. Complete closure is possible but tends to rapidly wear the flexible tube, unless of special design.

Photos

Pinch Valve
Pinch Valve

Videos

Pinch Valve :

Pinch Valve :

Pinch Valve

Foot Valve

Foot valve is basically a lift-check valve with an integrated strainer. They are typically used to maintain a head of water on the suction side of sump pump.

Photos

Foot Valve
Foot Valve

Youtube Videos

Foot Valve

Line Blind Valve

Line blind valve is basically a shutoff device consisting of a flanged assembly with a spectacle-plate or blind sandwiched between them.

Line Blind Valve

Squeeze Valve

Well suited to regulating the flow of difficult liquids, slurries and powders. Maximum closure is about 80%, which limits the range of regulation, unless the variation of this type of valve with a central core (seat) is used, offering full closure.

Photos

Squeeze Valve

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