Piston actuated valves

M&M Angle seat piston valves 

M&M piston valves are manufactured in Italy, using the highest quality materials for a high quality product.

M&M piston actuated valves use an external control media to pilot the actuator, where a piston valve is directly connected to the main seal that closes onto the main orifice, thereby controlling the flow of liquids and gases.

M&M piston valves are highly recommended under these conditions:

• Media containing dirt particles
• Highly viscous media (up to 600 cST (80°E); 1 centistoke = 1 mm²/s)
• High flow volumes
• High temperatures
• Damp environments or hazardous locations

The versions of M&M Piston actuated valves available are:

Technical Information

The main seal material used in piston actuated valves:

A modified PTFE has been used as the main seal material since 2004, when it replaced the original PTFE material seal.

The modified PTFE seal provides these benefits over the previous verision:

• Lower porosity and permeability
• Fewer void spaces
• Higher elasticity
• Reduced deformation under load
• Better chemical resistance to controlled media
• Smoother surface and improved design flexibility 

The standard bonnet seals consist of 2 'V'-shaped FKM gaskets and a package of 25% graphite-filled PTFE gaskets.

High temperature Piston actuated valves:

M&M can offer a piston valve that can be used up to 200°C, provided that the valve pressure limits are respected.
The main differences, in regards to the materials in this design, are as follows:

• Change of the actuator material: From standard PA6 to PA66 filled with 30% fibreglass
• All valves with DN > 25 with fixed plug design (to withstand turbulence caused by steam at high speed)
• Special design of bonnet chevrons, all are made of 25% graphite-filled PTFE

10 Reasons to use a piston actuated valve:

You can read the rest of V-Flows blogs here.
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Piston actuated valves can be found here, on our website:
http://v-flowsolutions.co.uk/actuated-valves/pneumatic/piston-valves/

For any other products please look on our website:
http://v-flowsolutions.co.uk/

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If you think V-Flow can help you then please contact us:

Telephone: +44 (0)1234 855888

Email: sales@v-flowsolutions.co.uk

Fax: +44  (0)1234 857775

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If you have a problem with flow control, we will find the solution.