The VM type diaphragm valve is manually operated by a non-rising handwheel. That means it does not change his height during the rotation. Metal spindle and sleeve ensure total reliability. The compression bearing made of POM reduces friction and consequent wear.
The plastic spindle extension indicates the valve position. The valve design is compact and
sturdy. The hand-wheel has been designed without spokes, to provide increased strength.
Threaded inserts are moulded-in into the bonnet, thus eliminating the need to drill holes, and also allowing the body fixing bolts to be inserted from the bottom. The above method allows a cavities-
free bonnet, avoiding dirt and impurities accumulation. The diaphragm valve can be used with liquid and gaseous fluids, and s particularly suitable for dirty or abrasive media.
The innovative CDSA - Circular
Diaphragm Sealing Area - system (up
to DN50) offers the following mechanical
- uniform distribution of the pressure
made by the compressor on the sealing
- up to 20% of bolt tightening torque
- reduced mechanical stress on all
valve components (actuator,body and
- easy internal cleaning
- lower risk of deposit accumulation,
fluid contamination and damaging of
the diaphragm due to the eventual
- reduction of the closing handwheel
torque of the manual valves up to
40%The hand-wheel operation, and
the diaphragm type sealing, allow
a proper regulation and reduce the
â€¢ High Kv value and reduced pressure
â€¢ Compact and sturdy construction,
â€¢ Modular range: only 5 diaphragms
and bonnet sizes for 9 different
â€¢ Easy replacement of the sealing
â€¢ Position indicator as standard.
â€¢ Security blocking device.
â€¢ Electrical position indicator
â€¢ Plate for DN 15-50 bodies alignment
at the same pipe center-line.
â€¢ For more information please visit
our website: www.petronthermoplast.com