

Swagelok SS-4R3A is a 316 stainless steel high pressure proportional relief valve with 1/4 in. tube fittings, providing over-pressure protection with easy external set pressure adjustments up to 6000 PSIG.

Swagelok SS-4R3A is a high pressure proportional relief valve constructed from 316 stainless steel. It features 1/4 in. Swagelok tube fittings on both connections and operates without a handle. This valve is designed to provide over-pressure protection for a variety of applications and allows for easy external set pressure adjustments. The room temperature pressure rating is 6000 PSIG at 100°F (413 BAR at 37°C), with fluorocarbon FKM used as the seal material.
| Specification | Value |
|---|---|
| Body Material | 316 Stainless Steel |
| Cleaning Process | Standard Cleaning and Packaging (SC-10) |
| Connection 1 Size | 1/4 in. |
| Connection 1 Type | Swagelok® Tube Fitting |
| Connection 2 Size | 1/4 in. |
| Connection 2 Type | Swagelok® Tube Fitting |
| Handle Style | No Handle |
| Room Temperature Pressure Rating | 6000 PSIG @ 100°F /413 BAR @ 37°C |
| Seal Material | Fluorocarbon FKM |
| Service Class | High Pressure |
| Testing | No Optional Testing |
| eClass (4.1) | 37010901 |
| eClass (5.1.4) | 37019901 |
| eClass (6.0) | 37010901 |
| eClass (6.1) | 37019901 |
| eClass (10.1) | 37019901 |
| UNSPSC (4.03) | 40141606 |
| UNSPSC (10.0) | 40141606 |
| UNSPSC (11.0501) | 40141606 |
| UNSPSC (13.0601) | 40141606 |
| UNSPSC (15.1) | 40141606 |
| UNSPSC (17.1001) | 40183109 |
WARNING
Do not mix/interchange Swagelok products or components not governed by industrial design standards, including Swagelok tube fitting end connections, with those of other manufacturers. Function material compatibility, adequate ratings, proper installation operation, and maintenance are the responsibilities of the system designer and user.