Swagelok SS-CHF4-1 is a 316 stainless steel poppet check valve designed to control backflow in general-service and high-purity applications. This fixed-pressure valve is rated for working pressures up to 6000 psig (413 bar) at room temperature and features a 1 psig (0.07 bar) cracking pressure. The compact poppet design ensures reliable shutoff and flow control with a maximum Cv of 0.67.

Technical Specifications

Specification	Detail
Body Material	316 Stainless Steel
Cracking Pressure	1 psi (0.07 bar, 0.007 MPa)
Connection 1 & 2	1/4 in. Female NPT
Maximum Cv	0.67
Pressure Rating	6000 PSIG @ 100°F / 413 BAR @ 37°C
O-Ring Material	Fluorocarbon FKM
Backup Ring Material	PTFE
Cleaning Process	Standard Cleaning and Packaging (SC-10)

Fixed Pressure

This model belongs to the Swagelok fixed cracking pressure series, providing consistent backflow prevention without the need for field adjustment. It is suitable for both high-purity and general industrial fluid systems.

Classifications

• eClass (10.1): 27300601
• UNSPSC (15.1): 40141641

System Safety and 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.

Interchangeability: Do not mix or interchange Swagelok products or components not governed by industrial design standards with those of other manufacturers.