Swagelok SS-16C-1/3 is a 316 stainless steel poppet check valve designed to control backflow in general-service and high-purity applications. This fixed-pressure valve features 1 in. Swagelok tube fitting connections and is factory-set with a cracking pressure of 1/3 psig (0.03 bar).

Technical Specifications

Specification	Detail
Body Material	316 Stainless Steel
O-Ring Material	Fluorocarbon FKM
Connection 1 & 2	1 in. Swagelok® Tube Fitting
Cracking Pressure	1/3 psi (0.03 bar, 0.003 MPa)
Maximum Flow Coefficient (Cv)	4.48
Room Temperature Pressure Rating	2000 PSIG @ 100°F / 137 BAR @ 37°C
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Surface Finish	Standard

Operation and Fixed Pressure

Swagelok check valves provide reliable backflow control. The SS-16C-1/3 model is part of the fixed cracking pressure series, ensuring consistent performance in systems where adjustable pressure is not required.

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.

Product Identification

This product is identified by the following industrial classifications:

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

Installation and Compatibility

Do not mix or interchange Swagelok products or components not governed by industrial design standards, including Swagelok tube fitting end connections, with those of other manufacturers. Proper installation is critical for the safety and performance of the check valve.