Oulam Swing Check Valve — H44H
Model: H44H | By Oulam Valve Technology Co., Ltd. | Supplied by Geocore Dynamic Pakistan
The Oulam H44H Swing Check Valve is a high-performance, gravity-operated non-return valve manufactured from forged carbon steel (A105) or alloy steel (F11, F22) with stainless steel internal components. It automatically prevents reverse flow in horizontal and vertical pipelines across oil & gas, power generation, water treatment, and HVAC systems. Rated to ANSI Class 150 through 2500, manufactured under TS A1-level special equipment certification with full ISO 9001 quality management compliance.
Technical Specifications
| Valve Type | Swing Check Valve (Non-Return / NRV) |
| Pressure Class | ANSI Class 150, 300, 600, 900, 1500, 2500 |
| Size Range | DN25 (1") to DN300 (12") — custom sizes on request |
| Body Material | Carbon Steel A105 / Alloy Steel F11 / Alloy Steel F22 |
| Internal Components | Stainless Steel disc, hinge pin, and seat ring |
| End Connection | Flanged ANSI B16.5; butt-weld option available |
| Operation | Automatic — gravity + differential pressure (no actuator) |
| Installation | Horizontal (preferred); vertical with upward flow |
| Temperature Range | -29°C to +540°C (material dependent) |
| Testing Standard | API 598 shell & seat hydrostatic test |
| Design Standard | API 6D / ASME B16.34 |
| Applications | Oil & gas pipelines, power plants, water treatment, HVAC, refinery |
Certifications & Compliance
For custom specifications, special alloys, NACE service, or actuated configurations, please contact our engineering team.
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