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Department: InstrumentationX
Product Type: ValvesX
Product Sub-Type: Check ValvesX
Product: Relief Valve - Angle - Manual Override - RL4X
Connection Type: Male NPT / Female NPTX
Operating Temperature: -30 F to 225 F (-34 C to 107 C)X

Coded label color

Brown (1) Dark blue (1) Dark green (1) Magenta (1) None (1) Purple (2) White (1)

Cracking Pressure

10-25 psig (0.7-1.7 bar) (1) 10-225 psig (0.7-15.5 bar) (1) 25-50 psig (1.7-3.4 bar) (1) 50-100 psig (3.4-6.9 bar) (2) 100-150 psig (6.9-10.3 bar) (1) 150-225 psig (10.3-15.5 bar) (1) 225-400 psig (15.5-27.6 bar) (1) Valve without spring kit (1)

Special Cleaning

Cleaning for oxygen service (1)
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Relief Valve - Angle - Manual Override - RL4Relief Valve - Angle - Manual Override - RL4

Relief Valve - Angle - Manual Override - RL4

Parker Angle Relief Valve With Manual Override - RL4 Series

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Showing 1 - 9 of 9  
Part # Availability Price/UOM
++ 4M4F-RL4A-BNT-SS-MN Out of Stock - Lead Time Required $330.58
++ 4M4F-RL4A-BNT-SS-MN-KA Out of Stock - Lead Time Required $342.55
++ 4M4F-RL4A-BNT-SS-MN-KB Out of Stock - Lead Time Required $342.55
++ 4M4F-RL4A-BNT-SS-MN-KC Out of Stock - Lead Time Required $342.55
++ 4M4F-RL4A-BNT-SS-MN-KC-C3 Out of Stock - Lead Time Required $376.91
++ 4M4F-RL4A-BNT-SS-MN-KD Out of Stock - Lead Time Required $342.55
++ 4M4F-RL4A-BNT-SS-MN-KE Out of Stock - Lead Time Required $342.55
4M4F-RL4A-BNT-SS-MN-KF N/A Call to Order
++ 4M4F-RL4A-BNT-SS-MN-KG Out of Stock - Lead Time Required $342.55
UOM Inlet port 1 Outlet port 2 Material - Seals Cracking pressure Material Country of Origin (COO) Harmonized Tariff (HTS)
EA 1/4" male NPT 1/4" female NPT Nitrile rubber Valve without spring kit Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 10-25 psig (0.7-1.7 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 25-50 psig (1.7-3.4 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 50-100 psig (3.4-6.9 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 50-100 psig (3.4-6.9 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 100-150 psig (6.9-10.3 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 150-225 psig (10.3-15.5 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 10-225 psig (0.7-15.5 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
EA 1/4" male NPT 1/4" female NPT Nitrile rubber 225-400 psig (15.5-27.6 bar) Stainless Steel Special request, please call for COO Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN
Out of Stock - Lead Time Required
$330.58
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

Valve without spring kit

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KA
Out of Stock - Lead Time Required
$342.55
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

10-25 psig (0.7-1.7 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KB
Out of Stock - Lead Time Required
$342.55
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

25-50 psig (1.7-3.4 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KC
Out of Stock - Lead Time Required
$342.55
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

50-100 psig (3.4-6.9 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KC-C3
Out of Stock - Lead Time Required
$376.91
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

50-100 psig (3.4-6.9 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KD
Out of Stock - Lead Time Required
$342.55
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

100-150 psig (6.9-10.3 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KE
Out of Stock - Lead Time Required
$342.55
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

150-225 psig (10.3-15.5 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KF
N/A
Call to Order
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

10-225 psig (0.7-15.5 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
4M4F-RL4A-BNT-SS-MN-KG
Out of Stock - Lead Time Required
$342.55
View

UOM:

Inlet port 1:

Outlet port 2:

Material - Seals:

Cracking pressure:

Material:

Country of Origin (COO):

Harmonized Tariff (HTS):

EA

1/4" male NPT

1/4" female NPT

Nitrile rubber

225-400 psig (15.5-27.6 bar)

Stainless Steel

Special request, please call for COO

Special request, please call for HTS
Showing 1 - 9 of 9
Parker RL4 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. The manual override option with positive stem retraction is available for the full working pressure ranges. This option permits the user to relieve upstream pressure while maintaining the predetermined cracking pressure.

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