True Blue® Solenoid Valves Series EASM & EASYM with triple seal design for pressure, drain, and vacuum service...SUPERSEDED 1/1/06 By PTFE Bellows Design, Series EASMT & EASYMT

Features:

• NOTE INFORMATION BELOW PROVIDED FOR REFERENCE ONLY. EFFECTIVE JANUARY 1, 2006 THIS VALVE DESIGN HAS BEEN SUPERSEDED BY PTFE BELLOWS DESIGN, SERIES EASMT & EASYMT
• Million cycle bubble-tight design.
• No metal parts in wetted area.
• PTFE shaft for non-stick operation.
• Rugged molded construction.
• Patented Fail-Dry vented design.
• Resistant to atmospheric corrosion.
• Triple U-Cup design eliminates the problems often encountered with highly aggressive chemicals.
• Molded corrosion-resistant coil assembly.
• IP-54/Nema 4 water and dust tight enclosure.
• Every single valve is individually hand inspected and 100% tested prior to shipment -- so you can install with confidence.
• Note that the U-Cup design is not recommended for crystallizing solutions (salts, caustics, etc.) Use models EASMD & EASYMD or Series EASMT & EASYMT instead.

Mode of Operation:

Normally closed (energize to open). No pressure differential required.

Service:

Pressure, drain, and vacuum. (must specify with order). Please note that the 1" EASM with the 20 watt coil is only rated to 15" of mercury (partial vacuum). All others rated to full vacuum. Not suitable for solutions prone to crystallization.

Application:

Series EASM and EASYM automatically shut off flow of highly corrosive and ultra-pure liquids. They can handle acids, solvents, chlorine solutions, etc. and do not require pressure to aid in opening the valve.

Design:

Valves are spring return normally closed and direct acting with a heavy duty push-pull plunger design. There is no minimum pressure required for operation. Multiple U-cups are mounted around a PTFE shaft for low friction sealing, non-sticking operation, and million cycle design. The triple U-cup design also allows a stock valve to be used for vacuum or pressure. A poppet seat ensures bubble-tight shutoff.

Available in ½", ¾", and 1" sizes (EASM) or ¼" and ½" (EASYM). The EASM has a larger orifice, which permits higher flow with a slight reduction in pressure rating. The EASYM has a slightly smaller orifice (.280") and offers higher pressures at the expense of flow. Even so, the ¼" EASYM has a Cv rating of 1.1, which is still outstanding.

After 1,000,000 cycles, we recommend that the valve be disassembled and inspected. It is also recommended to replace the elastomer seals and u-cups at this point. Contact your distributor for a seal kit. For heavy use applications, you may wish to order a spare seal kit with the valve. Seal replacement takes but a few minutes with common tools; no special training is required.

Dimensions:

Specifications:

IMPORTANT NOTE: Pressure Ratings & Flow Rate Considerations

The pressure ratings shown in the table above are maximum values. The valve will open at the maximum listed inlet pressure and it will close at the maximum listed back pressure. The valve may not operate properly, however, when the maximum inlet and back pressure values are experienced at the same time. The governing parameter is velocity in feet per second (ft/sec) through the valve. Velocity is determined by pipe size and flow rate. To determine if your application exceeds the velocity tolerances for this valve, refer to the chart below.

If your flow rate (in Gallons Per Minute or Liters Per Minute) is below the 5 ft/sec column for your pipe size, the velocity is within plastic piping industry standards and the valve will function properly.

If your flow rate indicates a velocity above the accepted standard of 5 ft/sec but less than 10 ft/sec, Plast-O-Matic does not guarantee proper operation. The valve may still function, but if it emits a chattering sound, discontinue use. At fluid velocities above 5 ft/sec you must consider water hammer in the system design.

If your flow rate is higher than that listed in the 10 ft/sec column for your pipe size, this valve must not be used in your application.

ORDERING INFORMATION:

Note: For complete information request catalog page.

EAS  (Y)    M    2        EP       14         W20  - PV (Specify Voltage)
 
     Y-Reduced    Size     Seals    Orifice    Coil   Body Material
 
     Orifice      2=1/4    EP-EPDM   8-0.280   G20    PV-PVC (Geon®)
 
     1/4-1/2      4=1/2    V-FKM    12-0.375   W20    CP-CPVC (Corzan®)
 
     sizes        5=3/4             16-0.500   E20    PP-Polypro(20% Glass Filled)
 
                  6=1               22-0.656   G58    PF-PVDF (Kynar®)
 
                                               E58
 

Helpful Links:

Top of Page

Kynar® is a registered trademark of ARKEMA.,
Corzan™ is a trademark of Noveon. Geon® is a registered trademark of the Geon Company.

FAIL-DRY® and TRUE BLUE® are registered trademarks of Plast-O-Matic Valves, Inc.

Copyright© 1997-2006 Plast-O-Matic Valves, Inc.