Pinch Valves

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Product Description

The answer to problems of: corrosion, abrasion, clogging, contamination, vacuum & gas handling

Hand and pneumatic operated pinch valves do not incorporate any stuffing box and are leaktihgt on all liquids, slurries, granular materials, powders, pastes, gases, acids, etc…

Sleeve (internal rubber) is supported during opening and closing, and is easily replaceable without any special tools. The wide range of available elastomer materials enables an appropriate selection for each application and is a guarantee of perfect resistance to corrosion and abrasion.


PERFORMANCE FEATURES

• No loss of head

• Faultless sealing on liquids, fluid suspensions, granulated materials, powders, sludge, gas, etc.

• No packing

• Quick and easy replacement of sleeve, no special tooling required

• Sleeve supported during opening and closing: hence the possibility of under vacuum operation

• No maintenance

• Long durability

• Threaded spindles and side tie rods in stainless steel

• Cylinders in aluminum and specially treated cylinder springs on pneumatic models

• Epoxy painted, valve bodies protected with an anti-acid varnish


MATERIAL OF SLEEVES

• Natural rubber

• White natural rubber

• Neoprene

• EPDM

• Viton

• Butyl

• Nitrile

• Hypalon

• Silicone

• Neoprene/Silicon (mixed)


INSPECTION TESTS AVAILABLE BY

• SGS GLOBAL TRADE SOLUTIONS

• ITS INTERTEK TESTING SERVICES

• BV BUREAU VERITAS


OPTIONS

• Limit switches

• Solenoid valve

• Position indicator

• Air fitter regulator

• 3:15 PSI positioner

• 4:20mA electropneumatic positioner or 4:20mA electronic transmitter of position 30°-90° angle

• Triphase AC motor


PRODUCT FEATURES

• Straight through way

• Sized from ½” through 1 4”

• Flanged valves in according to UNI PN 10 and ANSI/ASME 150#

• Manual, pneumatic and electric operators


BODY VALVE MATERIALS

• Cast Iron GG25/Cast Iron A126

• Spheroidal cast iron GGG40/Ductil Iron ASTM A 395

• Pure aluminum

• Cast steel A 216 grade WCB

• Cast steel A 352 grade LCB

• 316 Stainless steel ASTM A 351 grade CF3M

• 316 L Stainless steel ASTM A 351 grade CF8M


CERTIFICATES AVAILABLE

• EN 10204 3.1.B

• EN 10204 2.2


MAIOR MARKETS SERVED

• Chemical process

• Power generation

• Water treatment

• Mining

• Pulp & paper

• Nuclear

• Pharmaceutical

• Food & Beverage

• Sugar


G&O SERIES PNEUMATIC ACTUATORS

Piston type air operators line offer a great solution to a wide range of actuation situations. They are exclusively designed to G&O series pinch valves and can be mounted in any position. These actuators are built in aluminum and are available in three options:

• single effect acting – fail to close (air to open)

• single effect acting – fail to open (air to close)

• double effect acting – fail to open & fail to close

Single effect acting actuators are fitted by an extractable handwheel for security.


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