Electric Actuated Butterfly Valve -- Concentric Wafer EPDM
Motorised Quarter-Turn Flow Control Valve
Document No.SV-DS-ACT-002
RevisionRev A
DateMay 2026
ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India
This datasheet describes electric motorised actuators mounted on concentric rubber-lined butterfly valves for automated on/off and modulating flow control in water, HVAC, and general industrial service.
Technical Specifications
| Parameter | Specification |
|---|
| Valve Size Range | DN50 to DN600 (2" to 24") |
| Pressure Rating | PN10 / PN16 |
| Body Material | Cast iron GGG40, ductile iron GGG50, aluminium |
| Disc Material | DI + EPDM rubber lining, CF8 (SS304), CF8M (SS316) |
| Seat Material | EPDM, NBR, VITON, PTFE-lined (on request) |
| Actuator Type | Electric quarter-turn motorised actuator |
| Supply Voltage | 230 V AC 1-phase (std), 415 V 3-phase, 24 V DC on request |
| Control Signal | On/off (3-point) or 4-20 mA modulating |
| Torque Range | 20 Nm to 1,200 Nm |
| Enclosure | IP67 weatherproof, IP68 submersible on request |
| Temperature Range | -10°C to +120°C (EPDM) |
| End Connections | Wafer or lug ISO 5752 / BS EN 593 |
Materials of Construction
| Component | Material |
|---|
| Body | GGG40 cast iron or GGG50 ductile iron, epoxy coated inside and out |
| Disc | DI with bonded EPDM liner, or CF8/CF8M stainless steel |
| Shaft | SS410 or SS316, ground and polished, double-D drive |
| Seat | Bonded EPDM liner (replaceable); NBR or VITON options |
| Actuator Housing | Die-cast aluminium, powder-coated, IP67 |
| Motor | Brushless DC or reversible AC induction with thermal protection |
| Gearbox | Worm and wheel, self-locking, grease-lubricated for life |
Testing & Inspection
| Test | Requirement |
|---|
| Test Standard | API 598 / ISO 5208 / BS EN 12266-1 Rate A |
| Certification | CE, ISO 9001, IP67 rated |
Applicable Standards
| Standard | Description |
|---|
| Design Standard | API 609 Category A / BS EN 593 |
Notes
- Valve and actuator are factory-coupled, aligned, and tested before dispatch; field assembly not required.
- Modulating actuators include a 4-20 mA positioner card with configurable ramp and dead-band.
- For outdoor tropical installation, specify IP68 submersible actuator with anti-condensation heater.
- Power consumption at stall is typically 15 to 45 W depending on torque class; running current is lower.
- Battery-backed fail-safe electric actuators available on request for critical isolation duty.
