Series 70 Model 71

2-WAY NORMALLY OPEN

Super valves that have ratings that formerly required valves of much greater size. Compatble with Air, water, and other fluids using 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.

Tabs

Specifications

MAX. OPER.
PRESS. DIFF.

ORIFICE SIZE

CV FACTOR

VALVE NUMBER
GROMMET HOUSING

CONDUIT HOUSING

1/4 NPT PORTS

350

1/16

.09

71J9ZGM

71J9ZCM

250

3/32

.22

71K9ZGM

71K9ZCM

175

1/8

.35

71N9ZGM

71N9ZCM

125

5/32

.45

71O9ZGM

71O9ZCM

100

3/16

.50

71P9ZGM

71P9ZCM

Ordering Information:

When ordering valves or repair packs add voltage and frequency to complete valve number. for examples: valve (71P9ZCM 120/60) repair pack (K71PDX 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 (O71PDDCM 120/60)

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:

Molded Class F (Std.), Potted and Class H Option

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:

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

Drawings

To view files Autodesk Viewer can be found here. https://viewer.autodesk.com/

Series 70 2WNO DIN STYLE COIL

MODEL 71
1/4-18 NPT 2WNO DIN STYLE COIL

Series 70 General Purpose Valves Conduit

MODEL 71 1/4-18 NPT
2WNO CONDUIT 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

Series 70 General Purpose Valves Conduit/Bracket Connection

Flow Calculator

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

Calculate Flow in GPM

P1-P2 (PSIA)

Specific Gravity

Flow (GPM)

Calculate Cv

Flow (GPM)

P1-P2 (PSIA)

Specific Gravity

Calculate P1-P2

Specific Gravity

Flow (GPM)

P1-P2 (PSIA)

Gas Flow P2 > 53% of P1 subsonic

Calculate Flow in CFM

P1 (PSIA)

P2 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

Flow (CFM)

Calculate Cv

Flow (CFM)

P1 (PSIA)

P2 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

Approx. Calculate P1

Flow (CFM)

P2 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

P1 (PSIA)

Approx. Calculate P2

Flow (CFM)

P1 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

P1 (PSIA)

Gas Flow P2 < 53% of P1 sonic

Calculate Flow in CFM

P1 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

Flow (CFM)

Calculate Cv

Flow CFM

P1 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

Calculate P1

Flow (CFM)

Specific Gravity

Temp (460° + °F) (°Rankine)

P1 (PSIA)

Nomenclature Tab

Nomenclature Chart (non 58 series)

Nomenclature, all valve series except 58

* Consult representative or factory for options and specifications