High pressure bearing
Nominal pressure reaches 207bar, with strong high pressure bearing capacity.
High-quality materials
Using 304/316 stainless steel, excellent corrosion resistance.
Card sleeve interface
Card sleeve interface design, easy installation and good sealing.



304/316L SS Reverse Flow Sleeve Check Valve is engineered for high-pressure liquid/gas systems (≤40 MPa) with zero-leakage sealing. Featuring a sleeve-guided disc and 316L stainless steel body, it prevents reverse flow while minimizing pressure drop (Cv ≥ 1.8). Ideal for corrosive media (acids, solvents, steam) and critical in oil/gas, chemical processing, and power plants.
Sleeve-guided disc closes in <0.5s during backflow, protecting pumps and compressors from damage.
Field-replaceable seals reduce downtime by 80% vs. welded check valves.
1. who are we?
We are based in Jiangsu, China, start from 2016
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Shaft Couplings, Flexible Couplings, Rigid Couplings, Polyurethane Elastic Pad, Inner Toothed Nylon Sleeve
4. why should you buy from us not from other suppliers?
With 10 years of professional coupling production experience, over a hundred CNC equipment, a professional production, research and development, after-sales team, and a first-class testing and research and development center in China.
24H online , Please feel free to contact us if you have any questions.
Parameter |
Specification |
Industry Advantage |
Max. Pressure |
40 MPa (5,800 psi) |
2× higher than standard DIN valves |
Size Range |
1/4" - 4" (DN15-DN100) |
Fits ISO/DIN/SMS piping standards |
Temperature Range |
-40°C to +450°C |
Covers cryogenic to steam applications |