Catalogs
Relief Valves — Proportional Relief Valves, R3, R4, RL3, and RL4 Series — High Pressure Relief Valve
Obtain over-pressure protection for a variety of applications with Swagelok proportional relief valves with easy external set pressure adjustments.
Proportional Relief Valves, R Series
Features: Liquid or gas service; Set pressures from 10 to 6000 psig (0.68 to 413 bar); 1/4 and 1/2 in. and 6 to 12 mm end connections
Similar Products
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Part #
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Body Material
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Connection 1 Size
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Connection 1 Type
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Connection 2 Size
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Connection 2 Type
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| SS-4R3A | 316 Stainless Steel | 1/4 in. | Swagelok® Tube Fitting | 1/4 in. | Swagelok® Tube Fitting | View Product |
| SS-4R3A1 | 316 Stainless Steel | 1/4 in. | Male NPT | 1/4 in. | Swagelok® Tube Fitting | View Product |
| SS-4R3A5 | 316 Stainless Steel | 1/4 in. | Male NPT | 1/4 in. | Female NPT | View Product |
| SS-4R3A5-BU | 316 Stainless Steel | 1/4 in. | Male NPT | 1/4 in. | Female NPT | View Product |
| SS-4R3A5-EP | 316 Stainless Steel | 1/4 in. | Male NPT | 1/4 in. | Female NPT | View Product |
| SS-4R3A5-KZ | 316 Stainless Steel | 1/4 in. | Male NPT | 1/4 in. | Female NPT | View Product |
| SS-4R3A5-NE | 316 Stainless Steel | 1/4 in. | Male NPT | 1/4 in. | Female NPT | View Product |
| SS-4R3A5-RT | 316 Stainless Steel | 1/4 in. | Male ISO Tapered Thread | 1/4 in. | Female ISO Tapered Thread | View Product |
| SS-4R3A-BU | 316 Stainless Steel | 1/4 in. | Swagelok® Tube Fitting | 1/4 in. | Swagelok® Tube Fitting | View Product |
| SS-4R3A-EP | 316 Stainless Steel | 1/4 in. | Swagelok® Tube Fitting | 1/4 in. | Swagelok® Tube Fitting | View Product |
| SS-4R3A-KZ | 316 Stainless Steel | 1/4 in. | Swagelok® Tube Fitting | 1/4 in. | Swagelok® Tube Fitting | View Product |
| SS-6R3A-MM | 316 Stainless Steel | 6 mm | Swagelok® Tube Fitting | 6 mm | Swagelok® Tube Fitting | View Product |
| SS-8R3A-MM | 316 Stainless Steel | 8 mm | Swagelok® Tube Fitting | 8 mm | Swagelok® Tube Fitting | View Product |
| SS-R4M8F8 | 316 Stainless Steel | 1/2 in. | Male NPT | 1/2 in. | Female NPT | View Product |
| SS-R4M8S8 | 316 Stainless Steel | 1/2 in. | Male NPT | 1/2 in. | Swagelok® Tube Fitting | View Product |
| SS-R4S12MM | 316 Stainless Steel | 12 mm | Swagelok® Tube Fitting | 12 mm | Swagelok® Tube Fitting | View Product |
| SS-R4S8 | 316 Stainless Steel | 1/2 in. | Swagelok® Tube Fitting | 1/2 in. | Swagelok® Tube Fitting | View Product |
Contact
If you have questions about this product, please contact your local authorized sales and service center. They can also tell you about supporting services to help you get the most out of your investment.