D973H 电动三偏心金属座片式蝶阀

D973H 电动三偏心金属座片式蝶阀

The D973H series triple-eccentric butterfly valve is a long-life and energy-saving
industrial valve. It adopts a three-dimensional eccentric design and a multi-layer
metal sealing structure that combines hard and soft sealing characteristics.

The optimized spatial movement of the disc prevents friction and interference
between the sealing surfaces. This reduces operating torque, improves sealing
performance and extends the service life of the valve. The D973H butterfly valve
is widely used in metallurgy, power generation, petroleum, chemical processing,
air, gas, combustible gas, water supply and drainage systems.

主要特点

• Low opening and closing torque with flexible and energy-saving operation.
• Three-dimensional eccentric structure for reliable zero-leakage shut-off.
• Multi-layer metal sealing structure with excellent sealing performance.
• No friction or interference between the sealing surfaces during operation.
• High pressure resistance, corrosion resistance and wear resistance.
• Long service life and stable performance under demanding conditions.
• Suitable for wafer-type installation in industrial pipelines.

Actuator

The D973H valve can be equipped with intelligent, modulating or on-off electric
actuators. 3810-series, NA-series, PSQ-series and DYR-series electronic quarter-turn
actuators are available. Valves with nominal sizes of DN200 and above are generally
equipped with 380 VAC electric actuators.

• Compact actuator body with a small installation footprint.
• Single-phase power supply and simple electrical connection.
• Manual override available for emergency operation.
• Double limit protection, overheat protection and overload protection.
• Optional full-stroke times of 15, 30, 45 or 60 seconds.
• Intelligent control with standard 4–20 mA DC or 1–5 V DC signals.
• Accurate valve positioning through integrated intelligent control software.
• Suitable for automatic control through industrial instruments or computers.

技术规格

主要材料

适用标准

• • Manufacturing standard: JB/T 8527-1997
  • Flange standard: GB/T 9113-2000
  • Face-to-face standard: GB/T 12221-1989
  • Inspection and testing: GB/T 13927-1992

Main Dimensions — D973H PN10 / PN16 / PN25

Dimensions, materials, actuator configuration and pressure-temperature limits are subject to the final WDL Valve technical drawing and approved project datasheet.