Pinch Valve Design – What makes it?

Pinch Valves (also commonly nicknamed as squeeze valves, bladder valves, rubber hose valves, soft seated valves, hose valves or shut off valves), are made up of only 3 components.

These include the housing or body, end connections, and a rubber sleeve that fits inside.

 

Pinch Valve housing material options include:

• PVC
• Stainless Steel
• Aluminium
• POM (Polyoxymethalene)

 

The rubber sleeve is fitted into the Pinch Valve housing. This is achieved simply by the addition of some lubricant paste, and for larger sizes from DN100 upwards, a fitting kit can be used which consists of a mounting pipe, mounting board, lubricant paste, and assembling nuts & bolts.

See more of the pinch valve design by watching the following video of the VMC type Pinch Valve by AKO:

Pinch Valve Design Rubber Inserts/Liners

Pinch Valve rubber sleeve materials include:

• Natural Rubber – 80’C
• Food Quality Natural Rubber – 80’C
• Natural Rubber High Temperature – 90’C
• EPDM (Black)- 120’C
• EPDM Food Quality (White inside) – 120’C
• Silicon – 130’C
• Neoprene – 80’C
• Butyle – 80’C
• Nitrile (Black) – 80’C
• Nitrile Food Quality (White inside) – 80’C
• Viton – 80’C
• Hypalon – 80’C

Rubber liners/sleeves and fitting kit for the pinch valve design

 

End Connections for a Pinch Valve Design

The extensive different types of end connections available for an AKO Pinch Valve design make almost every application possible. These include:

• Flanges (DIN PN10/PN16 or ANSI Class 150)
• BSP screwed sockets with internal thread
• RJT
• Threaded spigot
• Weld-on ends
• Tri-Clamp

 

 

The end connections are bolted or screwed into place, making the Pinch Valve ready to be fitted/installed into it’s required industry of application.

A full product range of fitting instructions are available free of charge to help with the re-sleeving process of AKO Pinch Valves – These can be found under our Documentation section.

We also have videos showing the step by step re-sleeving process.

CAD Pinch Valve Design

CAD drawings/diagrams/models for all AKO Pinch Valves are available to download for free. These can help with designing a Pinch Valve into your system.