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Pneumatic valve , Solenoid valve , Pneumatic component , China Pneumatic, Cylinders

Two Way Direct Acting Solenoid Valves

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Two Way Direct Acting Solenoid Valve For Corrosive and Ultra-Pure Liquids

Solenoid valve are designed using corrosion resistant thermoplastics and premium elastomer seals to offer bubble tight shut-off service and million cycle durability.  Valves are normally closed when de-energized.  The patented vented design with a secondary backup diaphragm helps to avoid emergency shutdowns and gives a visual warning of potential problems is standard on most models.  Most valves are supplied with coils rated for continuous service. 

Design - An electric solenoid coil is basically a simple electromechanical unit used to control the opening and closing of a valve.  Energizing the coil creates a magnetic field which lifts the shaft and seat of the valve off its orifice.  When de-energized a small  spring pushes the shaft and seat down to close the valve.  Response time is a split second.
 
Coil Selection
The coils used are available in 11, 20 and 58 watts with
AC voltages of 24, 120, 240 and 480 at 60 Hertz (may be used with 15% less voltage @ 50 Hz.) 
DC voltages are 12 and 24. 
W11 and W20 - 11 and 20 watt coils are standard  with weatherproof NEMA 4   polyester and nylon for corrosive environments.  For indoor or outdoor service.  Includes DIN connector with 1/2" conduit connection.
E20 and E58 - Explosion proof enclosure and water tight connection - NEMA 7 - CL. 1- Group C & D
DIN connector with indicator light is optional at modest cost
11 and 20 watt coils are rated for continuous service up to 95 F ambient temperature.   58 watt coils are rated for a 15 minute maximum on cycle. 
 
Valve Selection Criteria - Solenoid valves selection is a combination of selecting the material of construction for the valve body, shaft seal type and elastomer.  The sizing of the valve is dependent upon the flow rate required through the valve, the allowable pressure drop of the solution through the valve, the inlet pressure and back pressure of the solution.  We will assist in the selection processEASMT & EASYMT - Teflon Bellows - For acids, caustics, chlorine and ultra-pure solutions

EASMT and EASYMT is the most common applied of this group of solenoid valves.  Incorporating a Teflon bellow seal to prevent stem leakage and Viton seat sealing allow this valve to be used for both acid and caustic services.  It offers the widest selection of sizes, materials and coil configurations. 

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