1/4in Tube OD 3000PSI Stainless Steel Double Ferrule Check Valve

1/4in Tube OD 3000PSI Stainless Steel Double Ferrule Check Valve

The SIYelectric 316 Stainless Steel Double Ferrule Check Valve for 1/4 inch OD tubing is designed to provide reliable one-way flow control in instrumentation lines, gas systems, hydraulic circuits, pneumatic circuits, and industrial process applications.

With a working pressure rating up to 3000 PSI, this check valve helps prevent reverse flow, protect sensitive instruments, and maintain stable system operation. It is suitable for medium to high-pressure fluid and gas systems where leak prevention and flow direction control are important.

Manufactured from 316 stainless steel, the valve offers strong corrosion resistance, good mechanical strength, and dependable durability in demanding industrial environments. The double ferrule compression fitting provides a secure tube grip and leak-tight sealing on 1/4 inch OD tubing without tube flaring, making installation more convenient and repeatable.

Key Features

3000 PSI Pressure Rating

Designed for instrumentation and industrial systems requiring dependable backflow prevention under medium to high-pressure conditions.

316 Stainless Steel Construction

The 316 stainless steel body provides excellent resistance to corrosion, oxidation, and many industrial chemicals, supporting long service life in harsh environments.

Double Ferrule Tube Fitting Design

The double ferrule compression connection ensures strong tube retention and consistent sealing on 1/4 inch OD tubing, helping reduce leakage risk under pressure fluctuation or vibration.

Compact Inline Structure

The inline check valve design allows easy installation in limited spaces, including instrument panels, sampling lines, test equipment, and compact process layouts.

Reliable One-Way Flow Control

Prevents reverse flow and helps protect pumps, gauges, transmitters, analyzers, and other sensitive instruments from backflow-related damage or measurement instability.

Typical Applications

Instrumentation and Control Systems

Used in instrument air lines, pressure measurement lines, analyzer systems, sampling systems, and control panels where reverse flow must be prevented.

Hydraulic and Pneumatic Circuits

Suitable for hydraulic and pneumatic systems where one-way flow control is needed to protect equipment and maintain stable pressure direction.

Chemical and Petrochemical Processing

Applied in chemical dosing lines, process sampling points, auxiliary pipelines, and petrochemical systems where compatible fluids or gases require controlled flow direction.

Gas Distribution and Sampling Lines

Used in gas supply systems, calibration gas lines, purge lines, and sampling loops to prevent backflow and protect analytical equipment.

Laboratory and Analytical Equipment

Suitable for test benches, laboratory instruments, analytical skids, and small-scale process systems where compact size and reliable sealing are important.

Advantages

• Reliable non-return function prevents reverse flow in fluid and gas systems.
• 3000 PSI pressure rating supports medium to high-pressure instrumentation applications.
• 316 stainless steel construction provides corrosion resistance and long service life.
• Double ferrule compression connection provides secure sealing for 1/4 inch OD tubing.
• No tube flaring required, helping simplify installation.
• Compact inline design is suitable for tight system layouts and instrument panels.
• Suitable for instrumentation, sampling, gas distribution, hydraulic, pneumatic, laboratory, and process systems.
• Protects pumps, gauges, transmitters, analyzers, and sensitive equipment from backflow damage.

Technical Specifications