Electric Actuated Gate Valve

Industrial pipeline and process systems often require isolation valves that can be operated remotely and connected to plant automation systems. African Valve, an Electric Actuated Gate Valve Supplier in Nigeria, supplies electric actuated gate valves that combine the isolation function of a gate valve with motorized operation.

The electric actuator can be configured with local controls, position indication, limit switches and PLC, DCS or SCADA integration according to the application.

Engineering Design & Operation

A gate valve controls flow by moving a gate or wedge vertically into and out of the flow passage. When fully open, the gate is lifted clear of the flow path, providing a relatively unobstructed passage. When closed, the gate engages the seats and isolates the pipeline.

The electric actuator converts motor rotation into the torque and thrust required to operate the valve. Limit switches can identify the open and closed positions, while torque protection helps prevent excessive actuator loading.

Depending on the design, the valve can be supplied with solid wedge, flexible wedge or parallel-slide gate configurations, with rising-stem construction commonly used for this type of automated gate valve.

Technical Specifications

Materials & Components

• Body: Carbon Steel, Stainless Steel or Alloy Steel
• Gate: Carbon Steel, Stainless Steel, Alloy Steel or Duplex
• Stem: Stainless Steel, 410, 316 or 17-4PH
• Seats: Stainless Steel with suitable hard facing where required
• Packing: Graphite, PTFE or low-emission packing
• Gaskets: Graphite or spiral-wound gasket, depending on construction
• Actuator: Electric multi-turn actuator with suitable torque and thrust capacity
• Bolting: Carbon Steel or Stainless Steel, according to design

Testing & Standards

Depending on the valve design, pressure class, materials and service, applicable requirements may include API 600, API 6D, ASME B16.34, ASME B16.10, ASME B16.5, ASME B16.25 and API 598.