Product

Forged Gate Valve

High-performance isolation valve designed to automatically enhance sealing performance under pressure. Unlike traditional gate valves that rely solely on mechanical tightening, the self-sealing design utilizes system pressure to reinforce the seal between the bonnet and body. This makes it ideal for high-pressure and high-temperature applications where safety, reliability, and zero leakage are critical. Commonly used in power stations, refineries, and petrochemical plants, this valve type ensures long-term operation with minimal maintenance.

Benefits

Pressure-Assisted Sealing: The bonnet gasket is compressed more tightly as internal pressure increases, ensuring leak-free operation.
High Reliability in Extreme Conditions: Excellent sealing integrity under high pressure and temperature conditions.
Reduced Maintenance: Enhanced design minimizes the need for frequent servicing or adjustment.
Safe for Hazardous Media: Suitable for steam, gas, and high-temperature oil systems where leakage must be avoided.
Compact Design: Eliminates the need for additional sealing components or external bolting force.

Technical Data

Parameter	Specification
Function	On/Off (Isolation with pressure-assisted sealing)
Connection Type	Flanged, Butt Welded, Socket Welded
Material	Carbon Steel (WCB), Alloy Steel (WC6/WC9), Stainless Steel (CF8/CF8M)
Max. Nominal Pressure	Up to Class 2500 / PN420
Max. Nominal Size	Up to DN600 (24")
Allowable Fluid Temperature	-29°C to +600°C (depending on material and gasket type)

Sectional Drawings

Applications

Thermal and nuclear power plants
Oil & gas pipelines
Petrochemical processing units
High-pressure steam lines
Refineries and chemical reactors
Industrial boiler systems
District heating networks