Product category:
Process and OEM Valves
News Release from: Milton Roy Europe | Subject: Pinch valves
Edited by the Engineeringtalk Editorial
Team on 28 March 2002
Pinch valves avoid clogging
Pinch valves are particularly useful where powders and granulars are being handled and there is the potential for materials to choke or block standard valves, for example in storage hoppers and tanks.
In certain process applications, particularly where powders and granulars are being handled, there is the potential for materials to choke or block valves, for example in storage hoppers and tanks Pinch valves, which by design are unlikely to become caked or clogged by such media, are therefore the preferred design
This article was originally published on Engineeringtalk on 22 Oct 2003 at 8.00am (UK)
Related stories
Pinch valves handle powders without clogging
Competitively priced automatic pinch valves provide the important advantages of providing a complete seal, without the need for glands, while also ensuring a full flow within a process line.
Compact and competitively priced dosing pumps
A new addition to the established range of MRoy hydraulically actuated diaphragm dosing pumps is a competitively priced direct mounting motor option, the MRoy XA pump.
Hydraulically driven pumps in hydrogen plant
Axsia recently completed the supply of a hydrogen generation plant, based on methanol cracking, which included two Primeroyal hydraulically driven dosing pumps, supplied by Milton Roy UK
Fluids dosing and mixing specialists Milton Roy UK offers a wide range of competitively priced automatic pinch valves which provide the important advantages of providing a complete seal without glands, whilst also ensuring a full flow within the process line.
Also, the problems of a pressure drop occurring are avoided, even when viscous or paste like liquids are involved.
The valves are composed of a cylindrical reinforced sleeve of natural or synthetic rubber assembled within the valve body.
Valve closure is achieved by applying pressure, usually compressed air, which squeezes the sleeve into a flat configuration made possible by the pattern of the reinforcement.
This ensures that the valve shuts tight.
Standard sleeves are made of natural rubber with Neoprene or food grade rubber specified for hygienic applications.
Special elastomer or Viton sleeves are also available for more abrasive media.
The outer flanges of the valve are made from cast iron, while stainless steel plating with a Neoprene coating are other options.
Automatic pinch valves can operate with line pressures up to 4bar and control pressures to 6bar.
However, control pressure should not exceed line pressures by more than 2bar.
The range includes models with PVC bodies in sizes DN20 to DN40mm, while aluminium versions can also be supplied in sizes up to DN300mm.
Models with cast iron bodies are also available. Request a free brochure from Milton Roy Europe ...
• Milton Roy Europe: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
Search the Pro-Talk network of sites
