Electric Hard-seal Gate Valve is a heavy-duty industrial automatic shut-off valve driven by electric actuator.Adopting metal-to-metal hard sealing structure,it features high temperature resistance,high pressure resistance,excellent wear resistance and long service life.Different from soft seal gate valve,its sealing pair is made of high-hardness alloy materials with precise lapping process.It is mainly used for high temperature,high pressure steam,oil,high temperature water and other harsh medium pipeline systems,widely applied in power plants,petroleum,chemical industry,metallurgy,thermal heating and industrial pipeline engineering.

Key Design Features

High Performance Hard Sealing Structure

Metal hard sealing pair with precision grinding and lapping treatment,achieves reliable sealing under high temperature and high pressure conditions.

Alloy surfacing sealing surface has strong wear resistance,oxidation resistance and corrosion resistance.

Stable sealing performance,anti-scouring,suitable for high-speed flow medium and long-term frequent opening and closing.

Integrated Electric Actuator System

Configured with high-torque intelligent electric actuator,supports automatic opening and closing control.

Available with remote control,on-site operation,position signal feedback and over-torque protection function.

Compatible with PLC,DCS and industrial automatic control systems.

Built-in manual emergency operation mechanism for power failure maintenance.

High protection grade,dustproof,waterproof and moisture-proof,adaptive to harsh outdoor working environment.

High Strength Valve Body Structure

Valve body made of carbon steel WCB,stainless steel CF8/CF3M and other high-strength cast steel materials.

Compact overall structure,large flow area,small fluid resistance and low pressure loss.

Rigid structural design,can withstand extreme pressure and temperature impact without deformation.

Stable stem sealing,effective anti-leakage of high temperature medium along the stem.

Low Maintenance&Long Service Life

Alloy sealing surface resists erosion and aging,greatly reduces wear rate.

Reasonable internal structure design,less vulnerable parts and simple daily maintenance.

Bolted bonnet structure,convenient for internal parts inspection and replacement.

Excellent high temperature aging resistance,stable performance in continuous high temperature operation.

Technical Specifications

Size Range:DN15~DN1000

Pressure Rating:PN16,PN25,PN40,PN63,PN100,Class 150/300/600

End Connection:Flanged connection,welding connection

Face-to-Face Dimension:According to GB,ANSI,DIN standard

Temperature Range:-29℃~425℃

Applicable Media:Steam,high temperature hot water,crude oil,petroleum products,natural gas,corrosive high temperature medium

Inspection Standard:API 598,ISO 5208,EN 12266

Actuator Type:On-off type,adjustable modulating type

Main Advantages

Outstanding high temperature and high pressure resistance,suitable for extreme industrial working conditions.

Alloy hard sealing surface with strong wear resistance and medium scouring resistance.

Stable and durable sealing performance,no easy damage under frequent operation.

Low power consumption electric drive,safe automatic control and over-load protection.

Standard connection size,convenient for pipeline installation,replacement and transformation.

Superior structural rigidity,long overall service life and low later maintenance cost.