

Lift Type
Swagelok SS-RL3M4-S4 low pressure proportional relief valve. Features 316 stainless steel body, fluorocarbon FKM seals, and 1/4 in. MNPT to Swagelok tube fitting connections.

Swagelok SS-RL3M4-S4 low pressure proportional relief valve provides over-pressure protection for a variety of applications. It features easy external set pressure adjustments to ensure safe and reliable system operation.
| Attribute | Value |
|---|---|
| Body Material | 316 Stainless Steel |
| Cleaning Process | Standard Cleaning and Packaging (SC-10) |
| Connection 1 Size | 1/4 in. |
| Connection 1 Type | Male NPT |
| Connection 2 Size | 1/4 in. |
| Connection 2 Type | Swagelok® Tube Fitting |
| Handle Style | No Handle |
| Room Temperature Pressure Rating | 225 PSIG @ 100°F / 15.5 BAR @ 37°C |
| Seal Material | Fluorocarbon FKM |
| Service Class | Low 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.