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Proportional Relief Valves - Low Pressure
Proportional Relief Valves
Low Pressure Proportional Relief Valves
RL Series proportional relief valves protect pressure sensitive equipment in systems with working pressures up to 300 psig (20.6 bar) and set pressures from 10 to 225 psig (0.7 to 15.5 bar).
Set Pressures:
- Temperature Range: -40 to 300°F (-40 to 300°C)
- MAWP: 300 psig (20.6 bar)
- Set Pressure Range: 10 to 225 psig (0.7 to 15.5 bar) One spring for the full set pressure range. RL Series valves are shipped with springs installed.
End Connections:
- RL3: 1/4 in., 6 mm and 8 mm tube ends, 1/4 in. NPT and BSPT pipe ends
- RL4: 1/2 in. and 12 mm tube ends 1/2 in. NPT and BSPT pipe ends
Options
- Factory set valves
- Manual override handle
- Seal Materials
- Fluorocarbon FKM (Standard)
- Nitrile
- Ethylene Propylene
Part # |
CAD |
Body Material |
Connection 1 - Type |
Connection 1 - Size |
Connection 2 - Type |
Connection 2 - Size |
Seal Material |
Set Pressure Range |
Production Category |
Product Descriptions |
End Connection Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RL4D8-316-BN |
CAD
N/A
|
Body Material N/A 316 SS | Connection 1 - Type N/A Duolok Tube Fitting | Connection 1 - Size N/A 1/2 in | Connection 2 - Type N/A Duolok Tube Fitting | Connection 2 - Size N/A 1/2 in | Seal Material N/A Nitrile Buna Rubber | Set Pressure Range N/A 10 to 225 psig0.7 to15.5 bar | Production Category N/A 1 | Product Descriptions N/A Duolok Tube End Proportional Relief Valve | End Connection Type N/A Duolok Tube End |
| RL4D8-316-EP |
CAD
N/A
|
Body Material N/A 316 SS | Connection 1 - Type N/A Duolok Tube Fitting | Connection 1 - Size N/A 1/2 in | Connection 2 - Type N/A Duolok Tube Fitting | Connection 2 - Size N/A 1/2 in | Seal Material N/A EPDM | Set Pressure Range N/A 10 to 225 psig0.7 to15.5 bar | Production Category N/A 1 | Product Descriptions N/A Duolok Tube End Proportional Relief Valve | End Connection Type N/A Duolok Tube End |
| RL4DM12-316 |
CAD
N/A
|
Body Material N/A 316 SS | Connection 1 - Type N/A Duolok Tube Fitting | Connection 1 - Size N/A 12 mm | Connection 2 - Type N/A Duolok Tube Fitting | Connection 2 - Size N/A 12 mm | Seal Material N/A FKM | Set Pressure Range N/A 10 to 225 psig0.7 to15.5 bar | Production Category N/A 1 | Product Descriptions N/A Duolok Tube End Proportional Relief Valve | End Connection Type N/A Duolok Tube End |
| RL4DM12-316-BN |
CAD
N/A
|
Body Material N/A 316 SS | Connection 1 - Type N/A Duolok Tube Fitting | Connection 1 - Size N/A 12 mm | Connection 2 - Type N/A Duolok Tube Fitting | Connection 2 - Size N/A 12 mm | Seal Material N/A Nitrile Buna Rubber | Set Pressure Range N/A 10 to 225 psig0.7 to15.5 bar | Production Category N/A 1 | Product Descriptions N/A Duolok Tube End Proportional Relief Valve | End Connection Type N/A Duolok Tube End |
| RL4DM12-316-EP |
CAD
N/A
|
Body Material N/A 316 SS | Connection 1 - Type N/A Duolok Tube Fitting | Connection 1 - Size N/A 12 mm | Connection 2 - Type N/A Duolok Tube Fitting | Connection 2 - Size N/A 12 mm | Seal Material N/A EPDM | Set Pressure Range N/A 10 to 225 psig0.7 to15.5 bar | Production Category N/A 1 | Product Descriptions N/A Duolok Tube End Proportional Relief Valve | End Connection Type N/A Duolok Tube End |
