2-WAY NORMALLY OPEN Valve
A complete line of valves with a great selection of options and exceptional proven performance. The standard in the field. For use with air, water, and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, and many oils require special seal materials.
- 2-Way Normally Open with all ports in body.
- Heavy duty and made of stainless steel.
- Wide range of orifice sizes from 1/32" to 1/8".
| MAX. OPER. PRESS. DIFF. | ORIFICE SIZE | CV FACTOR | VALVE NUMBER GROMMET HOUSING | CONDUIT HOUSING | ||
|---|---|---|---|---|---|---|
| DC | 1/8 NPT PORTS | 1/4 NPT PORTS | 1/8 NPT PORTS | 1/4 NPT PORTS | ||
| 1750* | 1/32 | .024 | BP21G7DGM | BP21G9DGM | BP21G7DCM | BP21G9DCM |
| 650* | 3/64 | .053 | BP21H7DGM | BP21H9DGM | BP21H7DCM | BP21H9DCM |
| 350 | 1/16 | .095 | BP21J7DGM | BP21J9DGM | BP21J7DCM | BP21J9DCM |
| 200 | 3/32 | .156 | BP21K7DGM | BP21K9DGM | BP21K7DCM | BP21K9DCM |
| 100 | 1/8 | .201 | BP21N7DGM | BP21N9DGM | BP21N7DCM | BP21N9DCM |
* FKM seals not recommended for pressure above 500 psi.
Ordering Information:
When ordering valves or repair packs add voltage and frequency to complete valve number. for examples: valve (BP21K9DGM 120/60) repair pack (KBP21KDD DC)
When ordering operators add the letter “O” to the front of the valve number, replace body port number with the letter “D”: example: operator (OBP21KDDGM 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 20 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 — 7.7 Watts DC — 9.5 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
- Internal Components
- Stainless Steel. Copper – AC Only.
- Elastomers
- Nitrile (Buna) (Std.). Many other elastomers available.
- Orifice Diameter
- See table above.
- Porting
- See table above.
- Housing
- Grommet and 1/2" NPT conduit
- Life Expectancy
- Millions of cycles, depending on application, lubrication, etc.
- Valve Weight
- Grommet Valve: 1.13 lb, Conduit Valve: 1.19 lb
- Repair Packs
- See table above.
- Options
- Alternate Port Locations, Metering, Alternate Elastomers
Series 20 General Purpose Valves Conduit
MODEL BP21 1/4-18 NPT
2WNO BODY PORTS
CONDUIT CONNECTION
MODEL BP21 1/8-27 NPT
2WNO BODY PORTS
CONDUIT CONNECTION
MODEL BP21 MANUAL OVERRIDE
2WNO BODY PORTS
CONDUIT COIL CONNECTION
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 METERING
2WNO BODY PORTS
CONDUIT COIL CONNECTION
Series 20 General Purpose Valves DIN
MODEL BP21 1/4-18 NPT
2WNO BODY PORTS
DIN STYLE COIL
MODEL BP21 1/8-27 NPT
2WNO BODY PORTS
DIN STYLE COIL
MODEL BP21 MANUAL OVERRIDE
2WNO BODY PORTS
DIN STYLE COIL
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 METERING
2WNO BODY PORTS
DIN STYLE COIL
Series 20 General Purpose Valves Grommet
MODEL BP21 1/4-18 NPT
2WNO BODY PORTS
GROMMET WITH LEADS
MODEL BP21 1/8-27 NPT
2WNO BODY PORTS
GROMMET WITH LEADS
MODEL BP21 MANUAL OVERRIDE
2WNO BODY PORTS
GROMMET HOUSING WITH LEADS
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 METERING
2WNO BODY PORTS
GROMMET HOUSING WITH LEADS
Series 20 General Purpose Valves Yoke Leads
MODEL BP21 1/4-18 NPT
2WNO BODY PORTS
YOKE WITH LEADS
MODEL BP21 1/8-27 NPT
2WNO BODY PORTS
YOKE WITH LEADS
MODEL BP21 MANUAL OVERRIDE
2WNO BODY PORTS
YOKE WITH LEADS
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 METERING
2WNO BODY PORTS
YOKE WITH LEADS
Series 20 General Purpose Valves Yoke Spades
MODEL BP21 1/4-18 NPT
2WNO BODY PORTS
YOKE WITH SPADE TERMINALS
MODEL BP21 1/8-27 NPT
2WNO BODY PORTS
YOKE WITH SPADE TERMINALS
MODEL BP21 MANUAL OVERRIDE
2WNO BODY PORTS
YOKE WITH SPADE TERMINALS
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 METERING
2WNO BODY PORTS
YOKE WITH SPADE TERMINALS
Series 20 General Purpose Valves Conduit/Bracket Connection
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 1/4-18 NPT
2WNO BODY PORTS
CONDUIT/BRACKET CONNECTION
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 1/8-27 NPT
2WNO BODY PORTS
CONDUIT/BRACKET CONNECTION
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 MANUAL OVERRIDE
2WNO BODY PORTS
CONDUIT/BRACKET COIL CONNECTION
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 METERING
2WNO BODY PORTS
CONDUIT/BRACKET COIL CONNECTION
Series 20 General Purpose Valves Grommet/Bracket Connection
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 1/4-18 NPT
2WNO BODY PORTS
GROMMET/BRACKET WITH LEADS
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 1/8-27 NPT
2WNO BODY PORTS
GROMMET/BRACKET WITH LEADS
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 MANUAL OVERRIDE
2WNO BODY PORTS
GROMMET/BRACKET HOUSING WITH LEADS
Minimum quantity required. Please contact sales for additional assistance.
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MODEL BP21 METERING
2WNO BODY PORTS
GROMMET/BRACKET HOUSING WITH LEADS
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.
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