CF3 Pressure Sealing Gate Valve enhances sealing through media pressure, with its key mechanisms as follows:
Pressure Conversion:
When closing, media pressure drives the gate toward the seat while compressing the self-sealing ring at the connection between the bonnet and valve body.
Higher pressure induces greater deformation of the sealing ring, filling microscopic gaps to achieve highly reliable sealing.
Bi-Directional Pressure Endurance:
The gate is designed as a bi-directional pressure-bearing structure, enabling sealing from either flow direction to accommodate complex pipeline requirements.
Opening Release:
As the stem rotates to lift the gate, media pressure is automatically released, allowing the sealing ring to return to its original shape and reducing opening resistance.
Specification
Gate Valve, API600
Steel Valves, ASME B16.34
Face to face ASME B16.10
End Flanges ASME B16.5/ASME B16.47
Butt Welding ends ASME B16.25
Inspection and test API 598
Material: CS ,SS
Pressure Rating: ASME CL, 150, 300, 600, 900, 1500, 2500
Temperature Range: -29℃~425℃
Application Scenarios
Petrochemical Industry
Refinery Units:
In high-temperature heavy oil pipelines (above 500°C), self-sealing gate valves prevent media leakage and avoid fire risks.
Chemical Production:
In pipelines carrying highly corrosive media (e.g., sulfuric acid, chlorine-alkali), hard alloy sealing surfaces resist chemical erosion.
Power Industry
Thermal Power Generation:
In main steam pipelines (pressure ≥10MPa), the self-sealing structure accommodates temperature fluctuations and prevents bonnet bolt loosening.
Nuclear Power Plants:
In the primary loop coolant system (radioactive media), metal sealing rings ensure zero leakage for safety.
Metallurgical Industry
Blast Furnace Gas Pipelines:
In high-pressure (0.8-1.2MPa), dust-laden media, self-sealing gate valves resist wear, facilitate cleaning, and reduce downtime frequency.
Long-Distance Pipelines
Natural Gas Transmission:
In high-pressure pipelines (Class1500 and above), self-sealing gate valves minimize leakage risks and ensure long-term safe operation.
GNEE CF3 Pressure Seal Gate Valves for sale
