Control Valve / Inlet-Outlet Check Valves
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This page explains how Check Valve Assembly is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A valve assembly that allows fluid flow in one direction only, preventing backflow in piping systems.
Technical details and manufacturing context for Check Valve Assembly
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Diameter | 15–300 mm | Standard pipe sizesISO 6708 |
| Operating Temperature | -20–150 °C | Seal material limits |
| Cracking Pressure | 0.05–0.1 MPa | Minimum pressure to open |
| Leakage Rate | 0–0.1 mL/min | At 1.1× rated pressureISO 5208 |
| Flow Coefficient (Cv) | 5–120 US gal/min | At full open |
| Body Material | WCB/CF8/CF8M | Carbon steel or stainlessASTM A216/A351 |
| Seal Material | PTFE/NBR/EPDM | Temperature and chemical compatibility |
| End Connection | Flanged/Threaded | Flange rating 150–300ANSI B16.5 |
| Weight | 2–150 kg | Depends on size and material |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Check Valve Assembly.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 25 bar |
| flow rate: | 0.5 to 50 L/min |
| temperature: | -20°C to 150°C |
| slurry concentration: | Up to 10% solids by weight |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
The cracking pressure range on file is 0.05–0.1 MPa. This is the minimum pressure required to open the valve. Confirm the exact value for your model with the manufacturer.
Materials on file include stainless steel, brass, and carbon steel. Body material grades may be WCB, CF8, or CF8M per ASTM A216/A351. Seal materials include PTFE, NBR, or EPDM. Verify compatibility with your fluid and temperature.
The operating pressure range is 1.0–1.6 MPa, and the operating temperature range is -20 to 150 °C. These are reference values; always check the manufacturer's data for your specific model.
The leakage rate on file is 0–0.1 mL/min at 1.1 times the rated pressure, per ISO 5208. This is a reference value. For your application, confirm the leakage class and test procedure with the manufacturer.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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