Automatic Pinch Valves

The Milton Roy Pinch Valve is an economic solution which is simple to install and requires very little maintenance. It controls the flow of fluids (liquid, gas or powder) and provides a totally leakproof seal when it is closed.

Milton Roy Europe, with more than 50 years' experience of pinch valves, has a complete range of full-bore valves suitable for many different applications. This range is available in cast iron, aluminium and PVC versions.

The automatic elastic deformation type pinch valve comprises a valve body and a cylindrical sleeve reinforced with natural or synthetic rubber. It is normally open. The valve is closed by the application of pressure between the valve body and the sleeve. This pressure is created by a fluid, usually compressed air (but this can be replaced by pressurized water). The action of this fluid crushes the sleeve in a particular direction, which is determined by careful positioning of the fibre reinforcement, thus totally closing the valve.

With their technical characteristics and the variety of sleeves available, our Milton Roy pinch valves are suitable for many applications:

  • Acids: hydrochloric, nitric, sulphuric, hydrofluoric, etc.
  • Alkalis: sodium hydroxide, ammonia, potassium, phosphates, sodium bicarbonate, etc.
  • Viscous or abrasive liquids: seawater, wastewater, limewash, paper pulp, paint, sludge, soot, clay slip, etc.
  • Edible liquids: beer, wine, cocoa butter, edible oils, beet juice, milk, sugar, syrups, etc.
  • Powdered products: cement, flour, sand, talc
  • Other fluids: reagents for water treatment, organic solvents, fertilisers, etc.

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