Swagelok SS-4C4-1/3 is a stainless steel poppet check valve designed to control back flow in general-service and high-purity applications. This fixed pressure valve features 1/4 in. female NPT connections and a cracking pressure of 1/3 psig (0.03 bar).

Specifications

Specification	Value
Body Material	316 Stainless Steel
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Connection 1 Size	1/4 in.
Connection 1 Type	Female NPT
Connection 2 Size	1/4 in.
Connection 2 Type	Female NPT
Cracking Pressure	1/3 psi (0.03 bar, 0.003 MPa)
CV Maximum	0.47
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

System Design and Compatibility

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.