Product Overview
Our hydraulic screw-in cartridge check valves are precision-engineered, poppet-type non-return valves designed for direct cavity installation into hydraulic manifold blocks and integrated systems.
Featuring a heavy-duty steel body and hardened wear parts, this valve allows free flow from the nose to the side (or side to nose) while providing positive, zero-leakage shut-off in the reverse direction. It is the ideal compact solution for load-holding, circuit isolation, and reverse flow prevention in high-pressure industrial and mobile hydraulic systems.
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Valve Type | Poppet Type Screw-in Cartridge Check Valve |
| Max. Operating Pressure | Up to 350 bar (5075 psi) |
| Rated Flow Capacity | 20 – 120 L/min (Depending on cavity size) |
| Cracking Pressure | 0.3 / 0.5 / 1.0 / 2.0 / 3.0 / 5.0 bar (Optional) |
| Internal Leakage | ≤ 3 drops/min at maximum rated pressure |
| Fluid Compatibility | Mineral-based hydraulic oils (HL, HLP) |
| Operating Temperature | -20°C to +80°C (-4°F to +176°F) with standard NBR seals |
| Seal Materials | Standard: NBR (Buna-N); Optional: FKM (Viton) for high temp |
| Cavity Compatibility | Standard metric / imperial threaded cavities |
Key Applications
Hydraulic Manifold Blocks (HIC): Compact integration for custom multi-valve manifolds.
Hydraulic Power Units (HPUs): Pump outlet protection and accumulator charging circuits.
Mobile & Construction Equipment: Load holding and safety reverse blocking in excavators, cranes, and loaders.
Agricultural & Forestry Machinery: Directional isolation and circuit backpressure control.
Industrial Presses & Injection Machines: High-cycle, heavy-duty pressure holding systems.
Factory Overview
Shandong Taifeng Intelligent Control Co., Ltd. is a leading high-tech manufacturer specializing in the R&D and precision production of hydraulic control valves, cartridge valves, and integrated hydraulic manifold systems.
Situated in a modern industrial manufacturing park, our facility integrates high-precision machining, intelligent assembly, advanced surface treatment, and comprehensive hydraulic testing lines. Committed to precision engineering and continuous innovation, we provide high-performance, zero-defect hydraulic solutions to global OEMs and industrial distributors.
