Series 70 Model 71

2-Way Normally Open Valve

Super valves that have ratings that formerly required valves of much greater size. Air, water, and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, and many oils require special seal materials.

• Largest direct acting (non-piloted) valve we manufacture.
• Large orifice.
• High flow.
• Will operate effectively at very low pressures or vacuum.

  • SPECIFICATIONS
  • 2-D & 3-D CAD DRAWING
  • FLOW CHART
  • NOMENCLATURE

VALVE SPECIFICATIONS

MAX. OPER.
PRESS. DIFF.
ORIFICE SIZE CV FACTOR VALVE NUMBER
GROMMET HOUSING
CONDUIT HOUSING
AC DC N.O.  N.O. 1/4 NPT PORTS 1/4 NPT PORTS
350 350 1/16 .09 71J9ZGM 71J9ZCM
250 250 3/32 .22 71K9ZGM 71K9ZCM
175 175 1/8 .35 71N9ZGM 71N9ZCM
125 125 5/32 .45 71O9ZGM 71O9ZCM
100 100 3/16 .50 71P9ZGM 71P9ZCM

WHEN ORDERING VALVES OR REPAIR PACKS ADD VOLTAGE AND FREQUENCY TO COMPLETE
VALVE NUMBER. EXAMPLES: VALVE (71P9ZCM-120/60) REPAIR PACK (K71PDX-AC)

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 to 1150V AC 60 HZ. and 11 to 1035V AC 50 HZ. — 2.5 to 220V DC
Nominal Power: AC — 18.0 Watts DC — 16.0 Watts
Coil Construction: Molded (Std.), Non-molded Class A and 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
Elastomers: Nitrile (Buna) (Std.). Many other elastomers available.*
Orifice Diameter: See table above.
Porting: Standard 1/4" NPT (other ports available).*
Housing: Grommet and 1/2" NPT conduit - many options available.*
Listings: Most valves are UL and CSA listed.*
Life Expectancy: Millions of cycles, depending on application, lubrication, etc.
Valve Weight: Grommet Valve: 2.00 lb 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 General Purpose Valves Conduit


MODEL 71 1/4-18 NPT
2WNO CONDUIT CONNECTION

Series 70 General Purpose Valves Conduit/Bracket Connection


MODEL 71 1/4-18 NPT
2WNO CONDUIT/BRACKET CONNECTION

MODEL 71 MANUAL OVERRIDE
2WNO
CONDUIT/BRACKET CONNECTION

Series 70 General Purpose Valves Grommet


MODEL 71 1/4-18 NPT
2WNO GROMMET WITH LEADS

Series 70 General Purpose Valves Grommet/Bracket Connection


MODEL 71 1/4-18 NPT
2WNO GROMMET WITH LEADS

Series 70 General Purpose Valves Splice Box


MODEL 71 1/4-18 NPT
2WNO SPLICE BOX CONNECTION
Series 70 Flow Charts