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Relief Valve - Angle - RH4Relief Valve - Angle - RH4

Relief Valve - Angle - RH4

Parker Angle Relief Valve - RH4 Series

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Showing 1 - 20 of 224
Part # Availability Price/UOM
++ 4A-RH4A-BNT-SS Lead Time Required $211.09
++ 4A-RH4A-BNT-SS-K1 Lead Time Required $227.76
++ 4A-RH4A-BNT-SS-K2 Lead Time Required $227.76
++ 4A-RH4A-BNT-SS-K3 Lead Time Required $227.76
++ 4A-RH4A-BNT-SS-K4 Lead Time Required $227.76
++ 4A-RH4A-BNT-SS-K4-C3 Lead Time Required $254.53
++ 4A-RH4A-BNT-SS-K5 Lead Time Required $227.76
++ 4A-RH4A-BNT-SS-K6 Lead Time Required $225.62
++ 4A-RH4A-BNT-SS-K7 Lead Time Required $227.76
++ 4A-RH4A-BNT-SS-K8 Lead Time Required $227.76
++ 4A-RH4A-EPRT-SS Lead Time Required $211.09
++ 4A-RH4A-EPRT-SS-K1 Lead Time Required $227.76
++ 4A-RH4A-EPRT-SS-K2 Lead Time Required $227.76
++ 4A-RH4A-EPRT-SS-K3 Lead Time Required $227.76
++ 4A-RH4A-EPRT-SS-K4 Lead Time Required $227.76
++ 4A-RH4A-EPRT-SS-K5 Lead Time Required $227.76
++ 4A-RH4A-EPRT-SS-K6 Lead Time Required $227.76
++ 4A-RH4A-EPRT-SS-K7 Lead Time Required $256.15
++ 4A-RH4A-EPRT-SS-K8 Lead Time Required $256.15
++ 4A-RH4A-KZT-SS Lead Time Required $250.28
UOM Inlet port 1 Outlet port 2 Material - Seals Cracking pressure Material
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber Valve without spring kit 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 50-350 psig (3.4-24.1 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 350-750 psig (24.1-51.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 750-1500 psig (51.7-103.4 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 1500-2250 psig (103.4-155.1 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 1500-2250 psig (103.4-155.1 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 2250-3000 psig (155.1-206.8 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 3000-4000 psig (206.8-275.8 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 4000-5000 psig (275.8-344.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Nitrile rubber 5000-6000 psig (344.7-413.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber Valve without spring kit 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 50-350 psig (3.4-24.1 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 350-750 psig (24.1-51.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 750-1500 psig (51.7-103.4 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 1500-2250 psig (103.4-155.1 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 2250-3000 psig (155.1-206.8 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 3000-4000 psig (206.8-275.8 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 4000-5000 psig (275.8-344.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Ethylene propylene rubber 5000-6000 psig (344.7-413.7 bar) 316 Stainless steel
EA 1/4" A-LOK compression 1/4" A-LOK compression Highly fluorinated fluorocarbon rubber Valve without spring kit 316 Stainless steel
4A-RH4A-BNT-SS
Lead Time Required
$211.09

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

Valve without spring kit

316 Stainless steel

4A-RH4A-BNT-SS-K1
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

50-350 psig (3.4-24.1 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K2
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

350-750 psig (24.1-51.7 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K3
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

750-1500 psig (51.7-103.4 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K4
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

1500-2250 psig (103.4-155.1 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K4-C3
Lead Time Required
$254.53

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

1500-2250 psig (103.4-155.1 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K5
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

2250-3000 psig (155.1-206.8 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K6
Lead Time Required
$225.62

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

3000-4000 psig (206.8-275.8 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K7
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

4000-5000 psig (275.8-344.7 bar)

316 Stainless steel

4A-RH4A-BNT-SS-K8
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Nitrile rubber

5000-6000 psig (344.7-413.7 bar)

316 Stainless steel

4A-RH4A-EPRT-SS
Lead Time Required
$211.09

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

Valve without spring kit

316 Stainless steel

4A-RH4A-EPRT-SS-K1
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

50-350 psig (3.4-24.1 bar)

316 Stainless steel

4A-RH4A-EPRT-SS-K2
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

350-750 psig (24.1-51.7 bar)

316 Stainless steel

4A-RH4A-EPRT-SS-K3
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

750-1500 psig (51.7-103.4 bar)

316 Stainless steel

4A-RH4A-EPRT-SS-K4
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

1500-2250 psig (103.4-155.1 bar)

316 Stainless steel

4A-RH4A-EPRT-SS-K5
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

2250-3000 psig (155.1-206.8 bar)

316 Stainless steel

4A-RH4A-EPRT-SS-K6
Lead Time Required
$227.76

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

3000-4000 psig (206.8-275.8 bar)

316 Stainless steel

4A-RH4A-EPRT-SS-K7
Lead Time Required
$256.15

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

4000-5000 psig (275.8-344.7 bar)

316 Stainless steel

4A-RH4A-EPRT-SS-K8
Lead Time Required
$256.15

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Ethylene propylene rubber

5000-6000 psig (344.7-413.7 bar)

316 Stainless steel

4A-RH4A-KZT-SS
Lead Time Required
$250.28

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

EA

1/4" A-LOK compression

1/4" A-LOK compression

Highly fluorinated fluorocarbon rubber

Valve without spring kit

316 Stainless steel

Showing 1 - 20 of 224
Parker RH4 Relief Valves are designed such that when the upstream pressure exceeds the closing force exerted by the spring, the lower stem opens, permitting flow through the valve. Flow through the valve increases proportionately to the increase in upstream pressure. Pressure settings are externally adjustable while the valve is in operation. Eight different spring ranges provide greater system sensitivity and enhanced performance.

Application: In the key markets of chemical & refining, food, beverage & dairy, medical & dental, microelectronics, oil & gas, and power generation.
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