Frequently Asked Questions

An electric valve is a flow control device that uses an electric actuator to automatically open and close. Unlike manual valves that require hand operation, electric valves are powered by electricity (typically 24V, 110V, 240V, or 415V) and can be controlled remotely or integrated into automated systems.

Electric valves are commonly used in heating, cooling, water treatment, industrial processes, and HVAC systems. They offer precise control, remote operation, and integration with building management and automation systems.

An electric actuator converts electrical energy into mechanical motion. When powered, an electric motor inside the actuator drives internal gearing and mechanisms that move the valve stem. This causes the valve to open or close the fluid pathway.

• On/Off Actuators: Fully open or fully close the valve with a simple electrical signal
• Modulating Actuators: Provide proportional control, allowing partial opening to regulate flow

The actuator is typically mounted directly onto the valve body. The electric signal triggers the motor, which continues to run until the valve reaches the desired position, then automatically stops.

Electric valves are available in different voltage ratings depending on the application and location:

• 24V DC/AC: Most common for HVAC systems, building controls, and low-power applications. Safe for residential installations
• 110V AC: Used in some industrial and commercial applications, particularly in USA and certain export markets
• 240V AC: Standard single-phase supply in UK domestic and small commercial premises
• 415V AC: Three-phase industrial supply, used for large-scale industrial applications and heavy-duty systems

Choose the voltage that matches your available power supply and system requirements. We can advise on the correct voltage for your specific application.

On/Off (Two-Position) Valves: These valves open completely or close completely based on a simple command. They are ideal for applications requiring simple flow control, such as pump isolation or system isolation. They offer faster response times and are more cost-effective.

Modulating Valves: These valves can open to any position between fully open and fully closed, providing proportional control. They continuously adjust the valve opening based on a control signal (typically 0-10V or 4-20mA) to maintain precise flow or pressure control. Modulating valves are essential for heating and cooling systems that require temperature regulation.

Key Difference: On/off valves have two states; modulating valves offer infinite positions for precise flow regulation.

Electric Ball Valves:

• Excellent for on/off applications with tight shutoff
• Lower pressure drop when fully open
• Ideal for high-pressure applications
• Better for applications requiring bubble-tight closure
• Compact design, suitable for small spaces

Electric Butterfly Valves:

• Excellent for on/off and modulating control
• More economical for large diameter pipes
• Faster opening/closing action
• Lighter weight and simpler installation
• Better for low-pressure drop applications

Choice depends on: Pipe diameter, pressure requirements, flow control type, and cost considerations. Contact us for application-specific recommendations.

IP (Ingress Protection) rating indicates the level of protection against dust and moisture. For outdoor electric valves, we recommend:

• IP65: Dust-tight and water-jet resistant. Suitable for most outdoor applications with direct spray or heavy rainfall
• IP66: Dust-tight and powerful water-jet resistant. For exposed installations subject to high-pressure water jets
• IP67: Dust-tight and temporary immersion-proof. For installations that may be temporarily submerged

For outdoor installation in harsh environments, IP65 is the minimum recommended rating. All our outdoor-rated actuators feature robust sealing and corrosion-resistant materials to withstand weather exposure.

Yes, electric valves can be used with corrosive media, but material selection is critical. We offer electric valves with various body materials designed for corrosive applications:

• Stainless Steel 316: Excellent for seawater, chlorine, and aggressive chemical environments
• Duplex Stainless Steel: Superior corrosion resistance for extreme applications
• FRP (Fiberglass Reinforced Plastic): For highly corrosive acid and alkali applications
• PVC/UPVC: For mild chemical applications and non-metallic requirements

The seals and internal components must also be compatible with the media. Always specify the exact media composition when requesting quotes for corrosive applications. We can recommend the optimal material combination for your specific chemical environment.

A fail-safe electric actuator is designed to move to a predetermined safe position (typically either fully open or fully closed) if power is lost or the control signal fails. This feature is critical for safety-critical applications.

• Spring Return (Fail-Open): Returns to fully open position on power loss. Used for applications where continued flow is safer
• Spring Return (Fail-Close): Returns to fully closed position on power loss. Used for isolation and safety shutoff applications

Fail-safe actuators incorporate a strong spring mechanism that automatically moves the valve to the safe position without external power. This is essential for:

• Emergency shutdown systems
• Safety-critical applications
• Hazardous fluid handling
• Unattended systems

Electric actuator lifespan depends on several factors:

• Design Quality: Premium engineered actuators typically last 15-20+ years
• Usage Frequency: More frequent cycling reduces lifespan (expect 100,000-500,000 cycles)
• Operating Conditions: Temperature, humidity, and environmental exposure affect durability
• Maintenance: Regular lubrication and inspection extend service life significantly
• Proper Installation: Correct sizing and installation prevent premature failure

Our electric actuators are engineered for long-term reliability with robust materials and precision manufacturing. Many installations operate successfully for 15+ years with minimal maintenance. Sealed designs and corrosion-resistant materials further extend lifespan in challenging environments.

Relevant certifications ensure safety, reliability, and suitability for specific applications:

• ATEX (2014/34/EU): Essential for explosive atmospheres (gas or dust). Required in Europe for hazardous area applications
• SIL (Safety Integrity Level): Demonstrates suitability for safety-critical applications. SIL 1-3 rating indicates reliability in emergency shutdown systems
• ISO 9001:2015: Quality management system certification indicating consistent product quality
• CE Marking: Confirms compliance with EU machinery and pressure equipment directives
• UL/cUL: North American safety certifications for use in USA and Canada
• PED (Pressure Equipment Directive): For valves used in pressurised systems

Always verify certifications match your application requirements. Hazardous area applications must have ATEX certification; safety-critical applications require SIL ratings. Contact us to confirm appropriate certifications for your specific needs.

Yes, many existing manual valves can be retrofitted with electric actuators, but compatibility must be verified. Key considerations include:

• Valve Type: Ball, butterfly, gate, and globe valves are commonly retrofitted
• Valve Stem Compatibility: The actuator must match the valve's stem size and rotation type
• Pressure Rating: The actuator must handle the system pressure
• Torque Requirements: The actuator must provide sufficient torque to operate the valve
• Flange Compatibility: Mounting surfaces must align properly

Retrofitting is often more economical than replacing the entire valve assembly, especially for larger or custom valves. Send us details of your existing valve (manufacturer, size, model) and we can advise on compatible actuator options and provide installation guidance.

Delivery times vary based on product type and order specifications:

• Standard Stock Items: 5-7 working days (subject to availability)
• Made-to-Order Products: 10-14 working days for custom configurations
• Special/ATEX Versions: 14-21 working days for certified products requiring additional testing
• Bulk Orders: 2-4 weeks depending on volume and specifications

Delivery time starts from order confirmation and payment. We maintain strategic stock of popular configurations to minimize lead times. For urgent requirements, contact our team to discuss expedited options. International shipping is available; please request a quote for overseas delivery.

Yes, we provide comprehensive technical support to help you select the right electric valve and actuator for your application. Our team can assist with:

• Product Selection: Matching the correct valve type, size, and actuator to your requirements
• Sizing Calculations: Flow rate, pressure drop, and torque analysis
• Application Guidance: Ensuring suitability for your specific industry or use case
• Installation Support: Technical drawings, installation guides, and commissioning assistance
• Troubleshooting: Diagnosing performance issues and recommending solutions
• Maintenance Advice: Extending service life through proper care and maintenance

Email us detailed specifications of your application or call our team directly. We're here to ensure you get the optimal solution for your needs.

Our electric valves and actuators serve a wide range of industries and applications:

• HVAC: Heating, ventilation, and air conditioning systems
• Water Treatment: Municipal and industrial water processing
• Building Services: District heating, cooling, and chilled water systems
• Industrial Automation: Manufacturing and process control
• Oil & Gas: Upstream, midstream, and downstream applications
• Pharmaceutical: Clean room and hygienic process control
• Food & Beverage: Sanitary and food-grade applications
• Chemical Processing: Corrosive media handling and chemical manufacturing
• Power Generation: Thermal and renewable energy applications
• Marine: Seawater systems and offshore installations
• Pulp & Paper: Industrial process control and flow regulation

Whatever your industry, we likely have experience with similar applications and can provide expert guidance.

Getting a quote is simple and straightforward. Please provide the following information:

• Valve type required (ball, butterfly, gate, etc.)
• Valve size and connection type (flanged, threaded, wafer, etc.)
• Pressure and temperature ratings needed
• Media type (water, steam, oil, chemical, etc.)
• Electric actuator voltage (24V, 110V, 240V, 415V)
• Actuation type (on/off or modulating)
• Any special requirements (ATEX, SIL, fail-safe, stainless steel, etc.)
• Quantity required

You can submit a quote request by:

• Emailing us with your specifications
• Calling our sales team to discuss your requirements
• Completing a quote request form on our website

We'll provide a detailed quotation with pricing and lead times within one working day. Our team can also help if you're unsure about exact specifications—just describe your application and we'll advise on the best solution.