Peter Paul Series 50 Model 51 Valve

2-WAY NORMALLY OPEN

Our original mini — engineered for space economy without sacrificing performance. Typical applications include medical, and analytical instrumentation. Compatible with air, water, and other fluids using standard Buna seals. Hot water, steam, gasoline, and many oils require special seal materials.

Tough with options to use in hazardous location environments or low watt applications.
High quality engineering.

Tabs

Specifications

MAX. OPER. PRESS. DIFF.		ORIFICE SIZE	CV FACTOR			VALVE NUMBER GROMMET HOUSING	CONDUIT HOUSING

AC	DC					1/8 NPT PORTS	1/8 NPT PORTS

400	200	1/32	.020			51G8XGM	51G8XCM
200	100	3/64	.048			51H8XGM	51H8XCM
125	60	1/16	.075			51J8XGM	51J8XCM
40	40	3/32	.150			51K8XGM	51K8XCM

Ordering Information:

When ordering valves or repair packs add voltage and frequency to complete valve number. for examples: valve (51J8XGM 120/60) repair pack (K51JDX 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 (O51JDDGM 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 50 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:

5000 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 — 6.0 Watts, DC — 7.0 Watts

Coil Construction:

Molded and potted Class F. (Class H optional)

Typical Response Time on Air:

4 - 16 Milliseconds

Operating Speed:

Up to 600 CPM

Duty Cycle:

Continuous

Mechanical Characteristics :

Body:

Stainless Steel (Std.), Brass (Opt.) or Aluminum (Opt.)

Internal Components:

Stainless Steel. Copper – AC Only.

Elastomers:

Nitrile (Buna) (Std.). Many other elastomers available.*

Orifice Diameter:

See table above.

Porting:

Standard 1/8" 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: 0.38 lb Conduit Valve: 0.44 lb

Repair Packs:

See table above.

Options:

Alternate Port Locations, Metering, Alternate Elastomers, Low Wattage, Spade Terminal Coil and Explosion Proof

Drawings

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

Series 50 General Purpose Valves Conduit

MODEL 51
2WNO CONDUIT CONNECTION

MODEL 51 STUD MOUNT BODY
2WNO CONDUIT CONNECTION

Series 50 General Purpose Valves Grommet

MODEL 51
2WNO GROMMET WITH LEADS

MODEL 51 STUD MOUNT BODY
2WNO
GROMMET WITH LEADS

Series 50 General Purpose Valves Yoke Leads

MODEL 51
2WNO
YOKE WITH LEADS

MODEL 51 STUD MOUNT BODY
2WNO
YOKE WITH LEADS

Series 50 General Purpose Valves Yoke Spades

MODEL 51
2WNO
YOKE WITH SPADE TERMINALS

MODEL 51 STUD MOUNT BODY
2WNO
YOKE WITH SPADE TERMINALS

Operator Drawings

Series 50 OPERATORS CONDUIT

MODEL 51 1/8-27
2WNO CONDUIT CONNECTION

Series 50 OPERATORS GROMMET

MODEL 51 1/8-27
2WNO GROMMET WITH LEADS

Series 50 OPERATORS YOKE LEADS

MODEL 51 1/8-27
2WNO MOLDED COIL WITH YOKE

Series 50 OPERATORS YOKE SPADE

MODEL 51 1/8-27
2WNO SPADE COIL WITH YOKE

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

Cv

P1-P2 (PSIA)

Specific Gravity

Flow (GPM)

Calculate Cv

Flow (GPM)

P1-P2 (PSIA)

Specific Gravity

Cv

Calculate P1-P2

Specific Gravity

Flow (GPM)

Cv

P1-P2 (PSIA)

Gas Flow P2 > 53% of P1 subsonic

Calculate Flow in CFM

Cv

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)

Cv

Approx. Calculate P1

Flow (CFM)

Cv

P2 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

P1 (PSIA)

Approx. Calculate P2

Flow (CFM)

Cv

P1 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

P1 (PSIA)

Gas Flow P2 < 53% of P1 sonic

Calculate Flow in CFM

Cv

P1 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

Flow (CFM)

Calculate Cv

Flow CFM

P1 (PSIA)

Specific Gravity

Temp (460° + °F) (°Rankine)

Cv

Calculate P1

Flow (CFM)

Cv

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