Swagelok 6L-CW4VR4-PX 316L stainless steel high purity check valve features 1/4 in. integral male VCR fittings and fluorocarbon FKM seals. Designed with a 5 µin. (0.13 µm) average surface finish and ultrahigh-purity SC-01 cleaning, it provides reliable flow control with a fixed cracking pressure.

Fixed Pressure

Control back flow in general-service and high-purity applications with Swagelok check valves available in a range of adjustable and fixed cracking pressures.

Specifications

Specification	Value
Body Material	316L Stainless Steel
Cleaning Process	Ultrahigh-Purity Process Specification (SC-01)
Connection 1 Size	1/4 in.
Connection 1 Type	Integral Male VCR
Connection 2 Size	1/4 in.
Connection 2 Type	Integral Male VCR
Cracking Pressure	2 psi (0.14 bar, 0.014 MPa)
CV Maximum	0.7
Room Temperature Pressure Rating	3000 PSIG @ 100°F / 206 BAR @ 37℃
Seal Material	Fluorocarbon FKM
Surface Finish	Ra5 μin
Testing	No Optional Testing
Wetted Surface Roughness	5 μin. (0.13 μm) average, machine finished and electropolished
eClass (4.1)	37010801
eClass (5.1.4)	27300400
eClass (6.0)	27292001
eClass (6.1)	27292001
eClass (10.1)	27292001
UNSPSC (4.03)	40141609
UNSPSC (10.0)	40141609
UNSPSC (11.0501)	40141609
UNSPSC (13.0601)	40141609
UNSPSC (15.1)	40141609
UNSPSC (17.1001)	40183101

System Design and Component Interchangeability

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.