Electric Triple Eccentric Hard Seal Butterfly Valve

Technical Requirement:
  1. Design & Manufacture: GB/T 12238 / JB/T 8527
  2. Face-to-Face: GB/T 12221
  3. End Flanges: GB/T 9124 / HG/T 20592
  4. Inspection & Test: GB/T 13927

Description

The Electric Triple Eccentric Hard Seal Butterfly Valve is a metal-seated, triple-offset butterfly valve fitted with a quarter-turn electric actuator. It allows remote or automatic opening, closing and regulation from a control room or PLC, while the triple offset design gives friction-free operation and tight metal-to-metal shut-off in high-temperature service.

Technical Specifications:
  • Pressure Class: PN16 / PN25 / PN40
  • Size Range: DN100 – DN1600
  • Applicable Medium: Steam, hot water, oil, gas, flue gas
  • Operating Temperature: -29°C to 425°C (actuator ambient -20°C to 60°C)
Main Parts and Materials:
Parts NameMaterials
BodyCast Steel WCB
DiscWCB / CF8
Seal RingMulti-layer SS + Graphite
Shaft2Cr13 / 17-4PH
ActuatorQuarter-turn electric, 380V / 220V, IP67
Key Product Features:
  1. Remote Control: On/off or modulating (4–20 mA) electric operation.
  2. Triple Offset Hard Seal: No seal wear during travel, zero-leakage closure.
  3. Overload Protection: Torque and limit switches protect valve and motor.
  4. Manual Override: Handwheel for operation during power failure.
  5. Fire-Safe Design: All-metal sealing for high-temperature and hazardous lines.
Applications:

Ideal for Power Plants, Steel & Metallurgy, Petrochemical Plants, and District Heating. Specifically suited for automated high-temperature lines that need tight shut-off.

Additional information

Standard

GB