

Wafer Type
Swagelok SS-CHS8-25 316 stainless steel fixed pressure poppet check valve. Features 1/2 in. tube fittings, 25 psig cracking pressure, and 6000 psig rating.

Swagelok SS-CHS8-25 is a fixed pressure stainless steel poppet check valve designed to control back flow in general-service and high-purity applications. It features a 25 psi (1.8 bar, 0.18 MPa) cracking pressure and 1/2 in. Swagelok Tube Fitting connections, providing a room temperature pressure rating of 6000 psig at 100°F (413 bar at 37°C).
| Specification | Value |
|---|---|
| Backup Ring Material | PTFE |
| Body Material | 316 Stainless Steel |
| Cleaning Process | Standard Cleaning and Packaging (SC-10) |
| Connection 1 Size | 1/2 in. |
| Connection 1 Type | Swagelok® Tube Fitting |
| Connection 2 Size | 1/2 in. |
| Connection 2 Type | Swagelok® Tube Fitting |
| Cracking Pressure | 25 psi (1.8 bar, 0.18 MPa) |
| CV Maximum | 1.8 |
| O-Ring Material | Fluorocarbon FKM |
| Room Temperature Pressure Rating | 6000 PSIG @ 100°F / 413 BAR @ 37°C |
| Surface Finish | Standard |
| Testing | No Optional Testing |
| Classification Type | Code |
|---|---|
| eClass (4.1) | 37010801 |
| eClass (5.1.4) | 27300400 |
| eClass (6.0) | 27300601 |
| eClass (6.1) | 27300601 |
| eClass (10.1) | 27300601 |
| UNSPSC (4.03) | 40141622 |
| UNSPSC (10.0) | 40141641 |
| UNSPSC (11.0501) | 40141641 |
| UNSPSC (13.0601) | 40141641 |
| UNSPSC (15.1) | 40141641 |
| UNSPSC (17.1001) | 40183101 |
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.
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