Question 1

What is a linear electric control valve?

Accepted Answer

A linear electric control valve, utilizing a linear actuator and valve body, modulates flow, pressure, temperature, and liquid levels. Driven by a motor for precise control, it accepts analog signals for automatic adjustment. Key in HVAC, chemical, and water treatment, it excels in closed-loop systems.

Question 2

What types of electric control valves do you have?

Accepted Answer

Our single-seat control valves include standard on-off, intelligent modulating, high-temp, and low-temp anti-freezing types, addressing diverse conditions such as pressure regulation, flow control, and temperature mixing.

Question 3

What industries and scenarios are linear control valves suitable for?

Accepted Answer

Ideal for central HVAC, thermal, chemical, sewage, energy, food, pharma, new energy, paper, textile sectors. They regulate steam, hot/cold air, oil, acid/alkali liquids in pipelines.

Question 4

What nominal diameters and pressure ratings does the valve support?

Accepted Answer

Supporting DN15 to DN300 diameters, with pressure ratings of PN16, PN25, PN40, PN64, and ANSI Class150/300. We offer ideal specs based on conditions and pressures.

Question 5

What control signals and modes does the valve support?

Accepted Answer

Modulating type supports 4-20mA, 0-10V signals. Digital type offers RS485 Modbus-RTU for remote operations. On-off type uses passive switches. Integrates with PLC, DDC, thermostats, and management systems.

Question 6

What is the supply voltage of the actuator?

Accepted Answer

Available in AC220V, AC110V, AC24V for global standards. Power is consumed only during adjustments, with negligible usage when static, outperforming pneumatic valves for long-term use.

Question 7

Does it have a feedback signal function?

Accepted Answer

All models feature standard opening feedback. Modulating types output 4-20mA/0-10V signals; on-off types have passive contact feedback. Staff can monitor real-time valve status on the upper computer system for centralized monitoring and remote operations.

Question 8

What are the common materials for valve body and internal parts?

Accepted Answer

Valve bodies are available in cast iron, cast steel WCB, 304 stainless steel, 316L stainless steel. Valve cores and seats are standard stainless steel. Seals include soft (PTFE, zero leakage) and hard (alloy, high pressure/temp). Special alloys for corrosive media enhance resistance.

Question 9

What is the protection grade?

Accepted Answer

Standard actuator protection is IP54. Upgraded versions can reach IP65, resisting dust and suitable for humid areas. Not for outdoor rain or immersion.

Question 10

What is the installation method?

Accepted Answer

Supports flange and threaded connections, suitable for horizontal pipelines. Vertical options for special conditions. Installation is simple with detailed English instructions; ordinary electricians can manage installation and commissioning.

Question 11

Is the valve calibrated before delivery?

Accepted Answer

Valves are pre-calibrated for open/close, zero, and range. Ready for use upon delivery. On-site recalibration for signal changes is simple via control panel or software.

Question 12

What are the common precautions during use?

Accepted Answer

Avoid overpressure, overtemperature, and overload. Install bypass and steam trap for steam conditions to prevent water hammer. Install a filter for impurity-laden media. Do not pry actuators. Regular operation is advised to prevent scaling.

Question 13

Do you support personalized customization services?

Accepted Answer

We offer OEM/ODM customization for materials, diameter, sealing, voltage, signals, explosion-proof grade, heat dissipation, logo, cable length. Custom fluid solutions are also available based on project needs.

Question 14

What is the warranty policy and after-sales service?

Accepted Answer

2-year free warranty covers actuators and valve bodies against non-human damage. Free lifetime technical consultation, remote commissioning, troubleshooting. For overseas projects, dedicated liaison support is available.

Question 15

What is the minimum order quantity and delivery time?

Accepted Answer

MOQ of 1 piece supported; sample and bulk orders welcome. Standard models in stock ship in 2-5 days. Customized, explosion-proof, or special voltage versions take 7-15 days. Long-term bulk supply available.

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