Valves — Relief Valves
Valves available with these specifications:
- 1/8 to 1/2 in. (6 to 12 mm)
- –65°F (–53°C) to 850°F (454°C)
- 316 stainless steel, brass, carbon steel
- 740 psig (50.9 bar) to 10 000 psig (689 bar)
Your local authorized Swagelok sales and service center may have additional options.
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Relief Valves — Proportional Relief Valves, R3, R4, RL3, and RL4 Series — High Pressure Relief Valve
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeSS-4R3A-BU 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-4R3A5-NE 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT SS-4R3A5-RT 316 Stainless Steel 1/4 in. Male ISO Tapered Thread 1/4 in. Female ISO Tapered Thread SS-4R3A5-EP 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT SS-4R3A5-KZ 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT SS-R4M8F8 316 Stainless Steel 1/2 in. Male NPT 1/2 in. Female NPT SS-R4S12MM 316 Stainless Steel 12 mm Swagelok® Tube Fitting 12 mm Swagelok® Tube Fitting SS-4R3A5 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT SS-4R3A5-BU 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT SS-4R3A-EP 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-4R3A-KZ 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-6R3A-MM 316 Stainless Steel 6 mm Swagelok® Tube Fitting 6 mm Swagelok® Tube Fitting SS-4R3A1 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Swagelok® Tube Fitting SS-R4S8 316 Stainless Steel 1/2 in. Swagelok® Tube Fitting 1/2 in. Swagelok® Tube Fitting SS-8R3A-MM 316 Stainless Steel 8 mm Swagelok® Tube Fitting 8 mm Swagelok® Tube Fitting SS-R4M8S8 316 Stainless Steel 1/2 in. Male NPT 1/2 in. Swagelok® Tube Fitting SS-4R3A 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting -
Relief Valves — Proportional Relief Valves, R3, R4, RL3, and RL4 Series — Low Pressure Relief Valve
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeSS-RL3S6MM 316 Stainless Steel 6 mm Swagelok® Tube Fitting 6 mm Swagelok® Tube Fitting SS-RL4M8F8 316 Stainless Steel 1/2 in. Male NPT 1/2 in. Female NPT SS-RL3S4-MO 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-RL4M8S8 316 Stainless Steel 1/2 in. Male NPT 1/2 in. Swagelok® Tube Fitting SS-RL3S4 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-RL3S4-SC11 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-RL3M4F4-RT 316 Stainless Steel 1/4 in. Male ISO Tapered Thread 1/4 in. Female ISO Tapered Thread SS-RL3M4-S4 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Swagelok® Tube Fitting SS-RL3S4-EP 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-RL3S8MM 316 Stainless Steel 8 mm Swagelok® Tube Fitting 8 mm Swagelok® Tube Fitting SS-RL4S8 316 Stainless Steel 1/2 in. Swagelok® Tube Fitting 1/2 in. Swagelok® Tube Fitting SS-RL3S4-KZ-11602 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting 1/4 in. Swagelok® Tube Fitting SS-RL3M4-F4 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT SS-RL4S12MM 316 Stainless Steel 12 mm Swagelok® Tube Fitting 12 mm Swagelok® Tube Fitting -
Relief Valves — Bleed and Purge Valves, BV and P Series — Purge Valve, Straight Pattern
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeB-4P-4M Brass 1/4 in. Male NPT - - S-4P-4M Carbon Steel 1/4 in. Male NPT - - SS-4PM8 316 Stainless Steel 1/2 in. Male NPT - - SS-4PST4 316 Stainless Steel 7/16-20 in. Male UNF Thread - - B-4P-4M-MP-SC11 Brass 1/4 in. Male NPT - - B-4P-6M Brass 3/8 in. Male NPT - - SS-4P-6M 316 Stainless Steel 3/8 in. Male NPT - - SS-4PM2RT 316 Stainless Steel 1/8 in. Male ISO Tapered Thread - - SS-4P-4M 316 Stainless Steel 1/4 in. Male NPT - - SS-4P-4T 316 Stainless Steel 1/4 in. Tube Stub - - SS-4P-4 316 Stainless Steel 1/4 in. Swagelok® Tube Fitting - - B-4P-2M Brass 1/8 in. Male NPT - - SS-4P-2M 316 Stainless Steel 1/8 in. Male NPT - - -
Relief Valves — Spare Parts and Accessories — Insert Kit
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeSS-R3A-K1 - - - - - -
Relief Valves — Bleed and Purge Valves, BV and P Series — Bleed Valve, Straight Pattern
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeSS-BVM4 316 Stainless Steel 1/4 in. Male NPT 3/16 in. Vent Tube SS-BVM2-SH 316 Stainless Steel 1/8 in. Male NPT 3/16 in. Tube Stub SS-BVM8 316 Stainless Steel 1/2 in. Male NPT 3/16 in. Vent Tube SS-BVM4-SH 316 Stainless Steel 1/4 in. Male NPT 3/16 in. Vent Tube SS-BVM6 316 Stainless Steel 3/8 in. Male NPT 3/16 in. Vent Tube SS-BVM4-C3-SH 316 Stainless Steel 1/4 in. Male NPT 3/16 in. Barbed Vent Tube SS-BVM2 316 Stainless Steel 1/8 in. Male NPT 3/16 in. Vent Tube SS-BVM8-SH 316 Stainless Steel 1/2 in. Male NPT 3/16 in. Vent Tube SS-BVST4 316 Stainless Steel 7/16-20 in. Male UNF Thread 3/16 in. Vent Tube SS-BVM4RT 316 Stainless Steel 1/4 in. Male ISO Tapered Thread 3/16 in. Vent Tube -
Relief Valves — Spare Parts and Accessories — Seal Kit
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeKZ-R3A-K2 - - - - - NE-R3A-K2 - - - - - BU-R3A-K2 - - - - - EP-R3A-K2 - - - - - SS-3K-RL4-VI - - - - - VI-R3A-K2 - - - - - SS-3K-RL3-VI - - - - - SS-3K-RL4-EP - - - - - SS-3K-R4-EP - - - - - SS-3K-R4-VI - - - - - SS-3K-RL3-EP - - - - - -
Relief Valves — Spare Parts and Accessories — Spring Kit
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 Type177-R3A-K1-B - - - - - 177-R3A-K1-C - - - - - 177-R3A-K1-D - - - - - 177-13K-RL4 - - - - - 177-R3A-K1-A - - - - - 177-13K-RL3 - - - - - 177-R3A-K1-G - - - - - 177-13K-R4-C - - - - - 177-13K-R4-B - - - - - 177-R3A-K1-E - - - - - 177-13K-R4-A - - - - - 177-R3A-K1-F - - - - - 177-R3A-K1-H - - - - - -
Relief Valves — Proportional Relief Valves, R3, R4, RL3, and RL4 Series — Adjustable Relief Valve
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeKVV11DI1 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT KVV11DE1 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT KVV11DG1 316 Stainless Steel 1/4 in. Male NPT 1/4 in. Female NPT -
Relief Valves — Spare Parts and Accessories — Poppet Kit
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeSS-R3A-K3 - - - - - -
Relief Valves — Spare Parts and Accessories — Handle Kit
Your local authorized Swagelok sales and service center may have additional options.Contact UsPart #Body MaterialConnection 1 SizeConnection 1 TypeConnection 2 SizeConnection 2 TypeSS-R3A-K5 - - - - -
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