3-Way Normally Closed Valve (Exhaust to Atmosphere)
The N70 line PeterPaul Hazardous Location valves are UL listed and certified for non-incendive Hazardous Location Class 1, Div 2, Groups A, B, C and D; Class 2, Div 2, Groups E, F and G; T3C temperature rating.
- Largest direct acting non-piloted valve we manufacture.
- Large orifice.
- High flow.
- Will operate effectively at very low pressures or vacuum.
| MAX. OPER. PRESS. DIFF. | ORIFICE SIZE | CV FACTOR | VALVE NUMBER CONDUIT HOUSING 1/4 NPT PORTS | |||
|---|---|---|---|---|---|---|
| AC | DC | INLET | EXH | INLET | EXH | |
| 350 | 350 | 1/16 | 1/16 | .09 | .09 | N73JJ9DCP |
| 250 | 250 | 3/32 | 3/32 | .22 | .22 | N73KK9DCP |
| 175 | 175 | 1/8 | 1/8 | .35 | .35 | N73NN9DCP |
| 125 | 125 | 5/32 | 5/32 | .45 | .45 | N73OO9DCP |
| 100 | 100 | 3/16 | 3/16 | .50 | .50 | N73PP9DCP |
| 50 | 50 | 1/4 | 3/16 | .78 | .50 | N73RP9DCP |
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Operating Conditions
- Media
- Air, water, and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, and many oils require special seal materials. (Series 70 pressure ratings may change due to the viscosity of the liquid.)*
- 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
- 4000 PSI
- Leakage
- Bubble tight for standard valves.
- Vacuum
- To 5 Microns*
Electrical Characteristics
- Coil Voltage
- 12/DC, 24/DC, 48/DC, 125/DC, 120/60-110/50, 240/60, and 24/60.
- Nominal Power
- AC — 18.0 Watts DC — 16.0 Watts
- Coil Construction
- Potted Class F or Class H (Opt.)
- Typical Response Time on Air
- 4 - 16 Milliseconds
- Operating Speed
- Up to 600 CPM
- Duty Cycle
- Continuous
Mechanical Characteristics
- Body
- Stainless Steel (Std.) or Brass (Opt.)
- Internal Components
- Stainless Steel. Copper – AC Only.
- Elastomers
- Nitrile (Buna) (Std.). Many other elastomers available.*
- Orifice Diameter
- See table above.
- Porting
- Standard 1/4" NPT (other ports available).*
- Housing
- 1/2" NPT conduit *
- Listings
- North American Listed and Certified for Non-Incendive Hazardous Locations Class 1, Div 2, Groups A, B, C and D; Class 2, Div 2, Groups E, F and G; T3C Temperature rating.*
- Life Expectancy
- Millions of cycles, depending on application, lubrication, etc.
- Valve Weight
- Conduit Valve: 2.06 lb
- Repair Packs
- See table above.
- Options
- Alternate Port Locations, Metering and Alternate Elastomers * Consult representative or factory for options and specifications.
Series 70 HAZARDOUS LOCATION VALVES
sales@peterpaul.com
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.