1 PC Spring Vertical Check Valve
Description
The one-piece vertical check valve is an automatic valve designed to prevent the reverse flow of fluid media, specifically for vertical pipeline systems. It features an integrated valve body structure, single-piece casting, and is characterized by compact structure, reliable sealing, and easy maintenance. It is widely used in water supply and drainage, petrochemical, power, HVAC and industrial pipeline systems to ensure unidirectional flow of media and protect equipment safety.
Structure and Materials
- Valve Body Structure : Integrated design without connection gaps, reducing leakage risks, high strength and easy installation.
- Valve Disc Assembly : The valve disc adopts a lightweight design and is assisted by a spring for closing, providing a rapid response.
- Sealing Materials : The valve seat sealing surface can be selected from rubber (NBR, EPDM), PTFE, or metal hard sealing, suitable for various media (water, oil, steam, corrosive liquids, etc.).
- Main Body Materials : Cast steel (WCB), stainless steel (304, 316L), etc., meeting diverse working conditions.
- The surface can be treated with anti-corrosion coating or electroplating to enhance corrosion resistance.
Working Principle
The valve automatically opens the valve disc under the pressure of the forward flow of the medium, allowing the medium to pass through. When the flow weakens or stops, the valve disc quickly closes under the action of gravity, spring force or reverse pressure, blocking the backflow. The entire process does not require external control.
Core Advantages
1. High-Efficiency Anti-Reversal Flow : Quick closing design effectively prevents water hammer shock, protecting pumps, compressors and other equipment.
2. Low Flow Resistance Design : Optimized flow channels reduce pressure loss, saving energy and reducing consumption.
3. Zero Leakage Sealing : Combination of elastic sealing and precise processing ensures tightness even after long-term use.
4. Simple Maintenance : Integrated structure eliminates the need to dismantle pipelines, and the valve disc can be inspected or replaced online.
5. Wide Compatibility : Suitable for various media including clear water, sewage, oil and gas, and acid and alkali solutions (material selection should be based on the medium).
Typical Application Scenarios
- Municipal Engineering : Water supply and drainage networks, anti-backflow at pump station outlets.
- Industrial Systems : Boiler feedwater, cooling circulation systems, chemical pipelines.
- Energy Sector : Oil transportation pipelines, gas supply systems.
- Building HVAC : Central air conditioning water systems, fire protection water supply.
Installation and Maintenance Guide
- Installation Direction : Ensure that the arrow on the valve body is in line with the medium flow direction and install it vertically (with the valve disc shaft perpendicular to the ground).
- Environmental Requirements : Avoid installing in locations with strong vibration or frequent start-stop cycles of the pipeline. Add supports if necessary.
- Maintenance Suggestions : Regularly check the wear of the sealing surface, clean impurities in the valve cavity, and test the performance of the spring every 1-2 years.
1 PC Spring Vertical Check Valve Integrated Structure, Stable And Durable
The Valve Body Adopts A One-Piece Casting Structure With Strong Integrity And Better Sealing Performance. It Reduces The Risk Of Leakage, Improves Pressure Resistance, And Is Suitable For Long-Term High-Intensity Operation, Especially For High-Frequency Start-Stop Occasions.
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