Description
Check Valves are designed to allow flow in one direction and automatically prevent reverse flow, protecting pumps, compressors, and pipelines from damage.
We offer a comprehensive range of Swing Check, Lift Check, and Dual Plate Check Valves, engineered to meet demanding industrial standards. These valves are available in various body materials, configurations, and pressure classes, ensuring dependable sealing performance, minimal pressure drop, and long service life.
Suitable for water, oil, steam, gas, and chemical applications, they deliver reliable performance in process, power, and utility systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Sizes | ½” to 48” (custom sizes available) |
| Pressure Rating | Class 150 – Class 2500 / PN10 – PN420 |
| Body Material | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Alloy Steel |
| Disc/Clapper Material | Stainless Steel, Bronze, Monel, Duplex Steel |
| Seat Type | Metal-to-Metal / Soft Seated (NBR, EPDM, PTFE) |
| End Connection | Flanged, Socket Weld, Butt Weld, Threaded |
| Flow Direction | Unidirectional |
| Operation | Automatic (Spring Loaded or Gravity Assisted) |
| Temperature Range | -29°C to +425°C (material-dependent) |
| Design Standard | API 594 / API 6D / ASME B16.34 |
| Testing Standard | API 598 / EN 12266 |
Key Features
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Prevents backflow and reverse pressure damage
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Low cracking pressure with minimal flow resistance
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Compact design suitable for horizontal or vertical installation
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High-quality sealing for leak-tight performance
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Available in multiple materials for corrosive or high-temperature applications
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Long service life and low maintenance requirements
Applications
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Water treatment and distribution systems
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Oil & gas pipelines and refineries
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Steam and condensate lines
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Chemical and process industries
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Power generation and HVAC systems
Certifications & Global Compliance
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API 6D / API 594 – Valve design and manufacturing
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ASME B16.34 – Pressure-temperature rating compliance
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ISO 9001 – Quality Management System
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CE / PED (Europe) – Pressure Equipment Directive compliance
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NACE MR0175 – Material suitability for sour service
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RoHS / REACH – Environmental and chemical safety
📩 For custom valve configurations, pressure rating details, or technical inquiries, contact: info@smpsuppliers.com
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