3-Way Normally Closed Valve
A complete line of valves with a great selection of options and exceptional proven performance. Using the heart of the highly successful model H22, Peter Paul Electronics Co., Inc., has a dual operator valve that allows the same media control as a three way normally closed valve but at much higher pressure ratings than previously available. To function as a 3-way normally closed valve, operators must be alternately energized and de-energized. Pressure applied to the "IN" port must always be equal to or greater than the pressure in "CYL" port. Air and other non-corrosive gasses, water and oil.
- Made for higher pressure ratings.
- 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 | 1/4 NPT PORTS | 1/4 NPT PORTS | ||
| 3000* | 3000* | 1/32 | .022 | EH23GG19DCCMG-∆ | EHA23GG19DCCMG-∆ |
| 2500* | 1500* | 3/64 | .041 | EH23HH19DCCMG-∆ | EHA23HH19DCCMG-∆ |
| 1750* | 500 | 1/16 | .065 | EH23JJ19DCCMG-∆ | EHA23JJ19DCCMG-∆ |
| 650* | 100 | 3/32 | .100 | EH23KK19DCCMG-∆ | EHA23KK19DCCMG-∆ |
| LIQUID PRESSURE RATINGS | ORIFICE SIZE | CV FACTOR | VALVE NUMBER | IECEx/ATEX VALVE NUMBER | |
| AC | DC | 1/4 NPT PORTS | 1/4 NPT PORTS | ||
| 3000* | 3000* | 1/32 | .022 | EH23GG19DCCML-∆ | EHA23GG19DCCML-∆ |
| 1500* | 1500* | 3/64 | .041 | EH23HH19DCCML-∆ | EHA23HH19DCCML-∆ |
| 1000* | 500 | 1/16 | .065 | EH23JJ19DCCML-∆ | EHA23JJ19DCCML-∆ |
| 300 | 100 | 3/32 | .100 | EH23KK19DCCML-∆ | EHA23KK19DCCML-∆ |
* FKM seals not recommended for pressure above 500 psi.
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 (EH23JJ19DCCML 120/60) repair pack (2KEH23JJ AC)
Operating Conditions
- Media
- Air and other non-corrosive gasses, water and oil.
- Valve Temperature Range
- Standard Valves – 0°F (-18°C) to a maximum of 221°F (105°C) including coil heat rise, ambient and media temperatures. Other temperature ranges available on request — along with specific application parameter information specified.*
- 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, 120/60-110/50, 240/60, and 24/60.
- Nominal Power
- AC — 7.3 Watts DC — 9.5 Watts (Per Operator)
- 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
- 300 Series 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
- 1/4" NPT
- 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
- 3.63 lbs
- Repair Packs
- See table above.
- Options
- Alternate Sealing Pin Materials and Alternate Elastomers*
Series 20 Model EH23
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.
