Electric Eccentric Butterfly Valve

A high-performance electric eccentric butterfly valve specially designed for harsh industrial conditions. It adopts an eccentric structure to reduce valve seat wear and achieve bidirectional tight sealing. It is suitable for pipeline systems in power plants, petrochemicals, metallurgy, and district heating, etc.

Eccentric design principle: Double offset moves disc away from seat after initial opening, reducing friction and wear. Triple offset features metal-to-metal sealing for zero leakage in high-temperature applications.

Bubble-tight shut-off: Achieves zero leakage (ANSI Class VI / ISO 5208 Rate A) regardless of pressure direction.

Extended service life: Cam-like disc motion eliminates rubbing between sealing surfaces, dramatically extending valve life compared to conventional designs.

High-pressure and temperature capability: Metal-seated versions handle extreme conditions where resilient-seated valves fail.

Electric actuation integration: Factory-mounted and tested electric actuators with various control options (4-20mA, Modbus, Profibus) for seamless automation.

Fire-safe design: Metal-to-metal sealing available for critical applications requiring API 607/6FA compliance.

Bidirectional sealing capability: Suitable for applications requiring sealing against flow in both directions.

Body: ASTM A216 WCB / ASTM A351 CF8 / CF8M / Carbon Steel / Stainless Steel

Disc: ASTM A216 WCB / ASTM A351 CF8 / CF8M / Duplex / Super Duplex / Nickel Alloy

Seat (Soft): PTFE / RPTFE / PEEK

Seat (Metal): Stainless Steel with Stellite overlay / Inconel

Stem: SS410 / SS420 / SS316 / 17-4PH / Inconel

Seal (Packing): Graphite / PTFE

We test all materials thoroughly. Chemical analysis comes first. Mechanical testing follows next. Dimensional verification uses CMM. Pressure testing exceeds standards. Cycle testing validates durability. Leak detection uses advanced methods.

Prepare pipeline properly first. Check valve specifications carefully. Clean flange faces completely. Position valve correctly. Connect wiring accurately. Set control parameters. Test all functions thoroughly.

Smart automation control
Zero leakage guarantee
Frictionless operation
Long service life
Minimal maintenance
High reliability
Energy efficiency

Chemical Plants
Automated process control
Corrosive fluid handling

Power Stations
Smart water systems
Auxiliary circuit control

Water Treatment
Intelligent distribution
Remote flow regulation

Oil and Gas
Pipeline automation
Processing unit control

Marine Systems
Automated ballast control
Smart bilge management

We use climate-controlled packaging. VCI technology prevents rust. Custom foam provides cushioning. Reinforced crates ensure safety. Waterproof wrapping protects. Smart labels track shipments.

Electric actuator variants: On-off (open/close), modulating (4-20mA input), intelligent (bus communication)

Actuator features: Local position indicator, manual override handwheel, torque limiter, heater/thermostat

Position feedback: 4-20mA output, limit switches (mechanical/proximity), potentiometer

Control accessories: Solenoid valves, positioners, speed controllers, remote terminal units (RTU)

Extended bonnets: For high-temperature or cryogenic services

Special trims: Hard-faced disc and seat for abrasive media

Purging/drain connections: For critical or sanitary applications

Design & Manufacturing: API 609 (Category A/B), ISO 5752, EN 593, ASME B16.34

Face-to-Face Dimensions: API 609, ISO 5752, ASME B16.10

Flange Dimensions: ASME B16.5 / B16.47, EN 1092-1

Pressure Testing: API 598, ISO 5208, EN 12266

Fire Safety: API 607, ISO 10497

Note: Materials, testing standards, and actuator configurations can be fully customized per project specifications.