Series 20 Model EH22
Hazardous Location High Pressure
2-Way Normally Closed Valve
When the valve coil is 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 de-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.
- SPECIFICATIONS
- 2-D & 3-D CAD DRAWING
- FLOW CHART
- NOMENCLATURE
| GAS PRESSURE RATINGS | ORIFICE SIZE | CV FACTOR | VALVE NUMBER | ||||||||||||||||
| AC | DC | 1/8 NPT PORTS | 1/4 NPT PORTS | ||||||||||||||||
 |
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| 3000 | 3000 | 1/32 | .022 | EH22G7DCCM | EH22G9DCCM | ||||||||||||||
| 2500 | 1500 | 3/64 | .041 | EH22H7DCCMG | EH22H9DCCMG | ||||||||||||||
| 1750 | 500 | 1/16 | .065 | EH22J7DCCMG | EH22J9DCCMG | ||||||||||||||
| 650 | 100 | 3/32 | .100 | EH22K7DCCMG | EH22K9DCCMG | ||||||||||||||
| LIQUID PRESSURE RATINGS | ORIFICE SIZE | CV FACTOR | VALVE NUMBER | ||||||||||||||||
| AC | DC | 1/8 NPT PORTS | 1/4 NPT PORTS | ||||||||||||||||
|
|||||||||||||||||||
| 3000 | 3000 | 1/32 | .022 | EH22G7DCCM | EH22G9DCCM | ||||||||||||||
| 1500 | 1500 | 3/64 | .041 | EH22H7DCCML | EH22H9DCCML | ||||||||||||||
| 1000 | 500 | 1/16 | .065 | EH22J7DCCML | EH22J9DCCML | ||||||||||||||
| 650 | 100 | 3/32 | .100 | EH22K7DCCML | EH22K9DCCML | ||||||||||||||
WHEN ORDERING VALVES OR REPAIR KITS ADD VOLTAGE AND FREQUENCY TO COMPLETE
VALVE NUMBER. EXAMPLES: VALVE (EH22J7DCCML-120/60) REPAIR KIT (2KEH22J-AC)
OPERATING CONDITIONS
Media: Air and other non-corrosive gasses, water and oil.
Filtration: Down to 60 microns or less is recommended.
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)
ELECTRICAL CHARACTERISTICS
Coil Voltage: 6 to 825V AC 60 HZ. and 5 to 720V AC 50 HZ.— 1.8 to 265V DC
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
Elastomers: Nitrile (Buna) (Std.). Many other elastomers available.*
Sealing Pin: Kel-F (Std.), Delrin®, Teflon®, Nylon, PEEK, Radel®, Ultem®, 303 Stainless Steel (Opt.)
Orifice Diameter: See table above.
Porting: See table above.
Housing: Flame-Proof Construction with 1/2″ NPT conduit
Mounting: Must be mounted within 30° of vertical.
Listings: Valves are UL listed and certified for Hazard Locations — Class I, Div 1, Group C and D – Class II, Div 1, Group E, F, and G; Div 2, Groups C, D, E, F, and G.
Life Expectancy: Millions of cycles, depending on application, lubrication, etc.
Valve Weight: 1.50 lbs
Repair Kits: See table above.
Options: Alternate Sealing Pin Materials and Alternate Elastomers*
* Consult representative or factory for options and specifications.
Series 20 High Pressure Valves
| A | A1 | A2 | A3 | A4 | A5 | B | C | C1 | C2 | C3 | C4 | |
|
||||||||||||
| inches | 2.75 | 3.48 | 2.92 | 3.65 | 3.22 | 3.95 | .34 | 1.67 | 2.39 | 2.15 | 1.65 | 2.63 |
| mm | 69.9 | 88.4 | 74.1 | 92.6 | 81.8 | 100.3 | 8.6 | 42.5 | 60.7 | 54.7 | 42.0 | 66.8 |
| D | D1 | D2 | E | F | G | H | I | I1 | J | J1 | K | |
|
||||||||||||
| inches | 1.69 | 1.61 | 1.88 | .88 | .88 | #10-32 X .31 | 1/8 OR 1/4 NPT | 1.88 | 2.13 | .92 | .85 | 2.52 |
| mm | 42.9 | 41.0 | 47.7 | 22.4 | 22.4 | 7.9 DP | 1/8 OR 1/4 NPT | 47.8 | 54.1 | 23.4 | 21.5 | 64.0 |
