SS316 High Pressure 20,000 psi. Inline Check Valves

SS316 High Pressure 20,000 psi. Inline Check Valves

SIYelectric SS316 High Pressure Inline Check Valves are designed for dependable one-way flow control in ultra-high-pressure hydraulic, gas, chemical injection, pressure testing, and process systems.

With a maximum working pressure of up to 20,000 PSI / approximately 1379 bar, these inline check valves help prevent reverse flow and protect critical system components such as pumps, compressors, gauges, pressure transmitters, analyzers, and high-pressure instruments.

Manufactured from 316 stainless steel, the valve body provides strong mechanical strength, corrosion resistance, fatigue resistance, and long service life in demanding operating environments. Different sealing structures, including O-ring sealing type and ball sealing type, can be selected according to the process medium, working pressure, leakage requirement, temperature condition, and maintenance preference.

Key Features

Ultra-High Pressure Rating

Designed for working pressures up to 20,000 PSI, suitable for extreme-pressure systems where stable flow direction control and system safety are critical.

316 Stainless Steel Construction

The SS316 stainless steel body provides excellent corrosion resistance, mechanical strength, and durability for harsh industrial environments and aggressive media.

Two Sealing Options Available

O-Ring Sealing Type
Provides reliable sealing performance, low leakage, and smooth operation when the O-ring material is compatible with the process medium and temperature.

Ball Sealing Type
Offers a robust sealing structure for high durability, repeated operation, and long service life in demanding high-pressure applications.

Compact Inline Design

The inline body structure allows easy installation into high-pressure tubing or piping systems, especially where space is limited in panels, skids, or equipment assemblies.

Reliable One-Way Flow Protection

Effectively prevents reverse flow, helping protect pumps, compressors, gauges, transmitters, test equipment, and other sensitive system components.

Typical Applications

Ultra-High-Pressure Hydraulic Systems

Used in hydraulic power units, high-pressure control circuits, pressurization systems, hydraulic test benches, and fluid power systems where reverse flow must be prevented.

Gas Compression and Control Systems

Suitable for gas compression lines, gas distribution systems, purge lines, calibration gas systems, and high-pressure gas control equipment.

Chemical Injection and Process Equipment

Applied in chemical injection skids, dosing systems, process control equipment, and high-pressure fluid lines where controlled flow direction is required.

Pressure Testing and Burst Test Systems

Used in hydrostatic test benches, burst test systems, pressure calibration equipment, and laboratory high-pressure test loops.

Oil & Gas and Energy Industries

Suitable for oilfield equipment, injection lines, wellhead-related systems, pressure control panels, and other high-pressure process applications in the energy sector.

Advantages

• 20,000 PSI / approx. 1379 bar working pressure rating for ultra-high-pressure service.
• SS316 stainless steel construction provides corrosion resistance, strength, and durability.
• Inline check valve design supports compact installation in tubing and piping systems.
• Reliable non-return function helps prevent reverse flow and protect critical equipment.
• O-ring and ball sealing options allow flexible selection for different leakage, durability, and maintenance requirements.
• Suitable for hydraulic, gas, chemical injection, pressure testing, oil & gas, and process control applications.
• Precision-machined valve components help support stable sealing and dependable long-term performance.

Technical Specifications