2-Way Normally Closed Valve
When the valve coil is de-energized, the plunger moves upward and disengages the shoulder of the sealing pin allowing the return spring to hold the pin tightly on the orifice seat. When the coil is energized, the plunger accelerates freely before it makes contact with the sealing pin shoulder. Upon contact, it imparts considerable kinetic energy to the pin causing it to lift off the orifice seat against the force of high pressure. For use on air and other non-corrosive gasses, water and oil.
- Precision stainless steel, free floating plunger.
- Kel-F pin sealing element.
- Orifice guides the sealing pin for near perfect alignment.
- Simple construction...only two moving parts.
- Explosion proof construction.
| GAS PRESSURE RATINGS | ORIFICE SIZE | CV FACTOR | VALVE NUMBER | IECEx/ATEX VALVE NUMBER | |||
|---|---|---|---|---|---|---|---|
| AC | DC | 1/8 NPT PORTS | 1/4 NPT PORTS | 1/8 NPT PORTS | 1/4 NPT PORTS | ||
| 5000*# | 5000*# | .025 | .010 | OEH22M7DCCM-∆ | OEH22M9DCCM-∆ | OEHA22M7DCCM-∆ | OEHA22M9DCCM-∆ |
| 3000* | 3000* | 1/32 | .022 | EH22G7DCCM-∆ | EH22G9DCCM-∆ | EHA22G7DCCM-∆ | EHA22G9DCCM-∆ |
| 2500* | 1500* | 3/64 | .041 | EH22H7DCCMG-∆ | EH22H9DCCMG-∆ | EHA22H7DCCMG-∆ | EHA22H9DCCMG-∆ |
| 1750* | 500 | 1/16 | .065 | EH22J7DCCMG-∆ | EH22J9DCCMG-∆ | EHA22J7DCCMG-∆ | EHA22J9DCCMG-∆ |
| 650* | 100 | 3/32 | .100 | EH22K7DCCMG-∆ | EH22K9DCCMG-∆ | EHA22K7DCCMG-∆ | EHA22K9DCCMG-∆ |
| LIQUID PRESSURE RATINGS | ORIFICE SIZE | CV FACTOR | VALVE NUMBER | IECEx/ATEX VALVE NUMBER | |||
| AC | DC | 1/8 NPT PORTS | 1/4 NPT PORTS | 1/8 NPT PORTS | 1/4 NPT PORTS | ||
| 5000*# | 5000*# | .025 | .010 | OEH22M7DCCM-∆ | OEH22M9DCCM-∆ | OEHA22M7DCCM-∆ | OEHA22M9DCCM-∆ |
| 3000* | 3000* | 1/32 | .022 | EH22G7DCCM-∆ | EH22G9DCCM-∆ | EHA22G7DCCM-∆ | EHA22G9DCCM-∆ |
| 1500* | 1500* | 3/64 | .041 | EH22H7DCCML-∆ | EH22H9DCCML-∆ | EHA22H7DCCML-∆ | EHA22H9DCCML-∆ |
| 1000* | 500 | 1/16 | .065 | EH22J7DCCML-∆ | EH22J9DCCML-∆ | EHA22J7DCCML-∆ | EHA22J9DCCML-∆ |
| 650* | 100 | 3/32 | .100 | EH22K7DCCML-∆ | EH22K9DCCML-∆ | EHA22K7DCCML-∆ | EHA22K9DCCML-∆ |
# DELRIN PIN SEALING ELEMENT STANDARD THIS SIZE ORIFICE. (KEL-F OPTIONAL)
Ordering Information:
Seal Material: Replace ∆ with desired code - Blank = Nitrile (Buna) S = Low Temp Buna. N = FKM* E = Neoprene A = EPDM
When ordering valves or repair packs add voltage and frequency to complete valve number. for examples: valve (EH22J7DCCM 120/60) repair pack (2KEH22J AC)
When ordering operators add the letter “O” to the front of the valve number, replace body port number with the letter “D”: example: operator (OEH22JDDCCM 120/60)
Operating Conditions
- Media
- Air and other non-corrosive gasses, water and oil.
- Valve Temperature Range
- Standard Valves – 0°F (-18°C) to 104°F (40°C) ambient; 0°F (-18°C) to 150°F (65°C) media. Optional Valves – can tolerate much higher or much lower ambient and media temperatures.*
- Maximum Operating Pressure Differentials
- See table above.
- Burst Pressure
- 10,000 PSI
- Leakage
- Bubbletight (with polymer sealing pins)
- Filtration
- Down to 60 microns or less is recommended.
Electrical Characteristics
- Coil Voltage
- 12/DC, 24/DC, 48/DC, 125/DC, 120/60, 120/60-110/50, 240/60, and 24/60.
- Nominal Power
- AC — 7.3 Watts DC — 9.5 Watts
- Coil Construction
- Molded Class F with third wire ground (Std.), Class H or Potted (Opt.)
- Typical Response Time on Air
- 4 - 16 Milliseconds
- Operating Speed
- Up to 600 CPM with gas media
- Duty Cycle
- Continuous
Mechanical Characteristics
- Body
- Stainless Steel
- Internal Components
- Stainless Steel. Copper – AC Only.
- Elastomers
- Nitrile (Buna) (Std.). Many other elastomers available.*
- Sealing Pin
- Kel-F (Std.), Delrin®, PEEK
- Orifice Diameter
- See table above.
- Porting
- 1/8" and 1/4" NPT (other ports available).
- Mounting
- Must be mounted within 30° of vertical.
- Housing
- Flame-Proof Construction with 1/2" NPT conduit
- Listings
- North American Valves are UL listed for use in the United States and Canada for Hazardous Locations — Class I, Div 1, Group C and D – Class II, Div 1, Group E, F, and G; Div 2, Groups A, B, C, D, E, F, and G.
- Certification
- IECEx/ATEX – In compliance with IEC 60079-0 & IEC 60079-1, IECEx : Ex db IIB+H2 T4 Gb, ATEX: II 2 G Ex db IIB+H2 T4 Gb
- Life Expectancy
- Millions of cycles, depending on application, lubrication, etc.
- Valve Weight
- 1.50 lbs
- Repair Packs
- See table above.
- Options
- Alternate Sealing Pin Materials and Alternate Elastomers*
Series 20 High Pressure Valves
Cv Flow Formulae
PeterPaul has created this page for you so you can calculate the flow or Cv (flow coefficient) to make the relationship visible between the pressure drop (the difference in pressure between two points of a liquid/gas carrying network) and the flow rate.
The use of this flow coefficient (Cv) calculator offers a standard calculation to compare valve capacities and sizing for a wide range of applications. The type and sizing of a valve or regulator can have a large impact on the performance of the assembly for transferring gas or liquids in the system.
Our sales department is ready to answer questions and to solve your valve needs. Please feel free to call, chat or email us.
Liquid Flow
Gas Flow P2 > 53% of P1 (subsonic)
Gas Flow P2 < 53% of P1 (sonic)
DISCLAIMER: Gas flow is only an approximation using Cv.
Coming soon.
