

Swagelok SS-8C4-1/3 stainless steel poppet check valve features a fixed cracking pressure of 1/3 psig (0.03 bar), 1/2 in. FNPT connections, FKM O-ring, and up to 3000 psig working pressure.

Swagelok SS-8C4-1/3 stainless steel poppet check valve. Control back flow in general-service and high-purity applications with Swagelok check valves available in a range of adjustable and fixed cracking pressures.
| Specification | Value |
|---|---|
| Body Material | 316 Stainless Steel |
| Cleaning Process | Standard Cleaning and Packaging (SC-10) |
| Connection 1 Size | 1/2 in. |
| Connection 1 Type | Female NPT |
| Connection 2 Size | 1/2 in. |
| Connection 2 Type | Female NPT |
| Cracking Pressure | 1/3 psi (0.03 bar, 0.003 MPa) |
| CV Maximum | 1.68 |
| O-Ring Material | Fluorocarbon FKM |
| Room Temperature Pressure Rating | 3000 PSIG @ 100°F /206 BAR @ 37°C |
| Surface Finish | Standard |
| Testing | No Optional Testing |
| 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
The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.
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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