Parker 4Z-C4L-1-SS Check Valve 1/4 in Compression Ss

Product Description

The PARKER 4Z-C4L-1-SS is a 1/4 inch inline check valve constructed entirely of stainless steel — body and spring — rated for a maximum working pressure of 6000 psi. It uses compression x compression end connections for straightforward installation in high-pressure line sets and instrumentation plumbing. A crack pressure of 1.00 psi ensures the valve opens reliably under minimal differential pressure while preventing backflow when flow stops or reverses. This valve is installed by licensed plumbers, pipefitters, and instrumentation technicians working on fluid control systems where corrosion resistance and high-pressure performance are required.

The 4Z-C4L-1-SS is suited for inline applications in high-pressure hydraulic, pneumatic, and fluid instrumentation systems where stainless steel construction is specified for corrosion resistance or cleanliness requirements. The compression x compression configuration makes it compatible with standard 1/4 inch compression tube fittings common in industrial and commercial fluid control plumbing. It is appropriate for both new installations and replacement service in commercial and industrial settings.

Key Features

• Stainless steel body and spring for corrosion resistance and durability in aggressive media
• 6000 psi maximum working pressure rating suitable for high-pressure fluid systems
• 1.00 psi crack pressure for low-differential opening response
• Compression x compression end connections for tool-accessible, tube-fitting installation
• Inline configuration keeps the valve in-line with the fluid path without directional offset
• 1/4 inch pipe size fits standard quarter-inch compression tube line sets

Compatibility

Designed as an OEM-style inline check valve for 1/4 inch compression tube systems rated to 6000 psi working pressure where stainless steel construction is required.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or instrumentation technician familiar with high-pressure fluid systems. Depressurize and isolate the line completely before removing any existing valve or fitting. Compression fittings must be seated and tightened properly to maintain the rated 6000 psi working pressure — do not overtighten. Verify that flow direction through the check valve matches the system flow path before returning the line to service.