Question 1

What is a linear electric control valve?

Accepted Answer

A linear electric control valve combines a linear actuator and valve body. The motor-driven stem adjusts flow, pressure, temperature, and liquid level accurately. It accepts analog signals to auto-adjust valve openings, ideal for closed-loop systems in HVAC, chemical, and water treatment industries.

Question 2

What types of electric control valves do you have?

Accepted Answer

Our linear valves are single-seat types, available as standard on-off, intelligent modulating, high-temp, and low-temp anti-freeze. They suit various conditions like pressure regulation, flow control, and temperature mixing.

Question 3

What industries and scenarios are linear control valves suitable for?

Accepted Answer

Widely used in HVAC, thermal heating, chemical, sewage treatment, and more. Ideal for regulating steam, hot water, air, oil, and chemical liquids in various industries.

Question 4

What nominal diameters and pressure ratings does the valve support?

Accepted Answer

Diameters range from DN15 to DN300. Pressure ratings include PN16, PN25, PN40, PN64, and ANSI Class150/300. We customize valve specs per pipeline conditions and pressure.

Question 5

What control signals and modes does the valve support?

Accepted Answer

Modulating type supports 4-20mA, 0-10V. Digital type uses RS485 Modbus-RTU for remote operation. On-off type features passive switch control. Connects directly to PLC, DDC, thermostat, and management systems.

Question 6

What is the supply voltage of the actuator? Is the power consumption high?

Accepted Answer

Available in AC220V, AC110V, AC24V versions, matching global standards. Consumes power only during adjustments, with nearly zero consumption when static. More energy-efficient than pneumatic valves, fit for continuous use.

Question 7

Does it have a feedback signal function?

Accepted Answer

Standard models have opening feedback. Modulating type outputs 4-20mA/0-10V feedback. On-off type has passive contact feedback. Staff can monitor real-time valve status remotely.

Question 8

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

Accepted Answer

Valve bodies: cast iron, WCB, 304/316L stainless steel. Valve core/seat: stainless steel. Seals: soft (PTFE, zero leakage) or hard (alloy, high pressure/temp). Custom alloys for corrosive media.

Question 9

What is the protection grade? Can it be used outdoors in the open air?

Accepted Answer

Standard actuator IP54. Upgraded version IP65 for humid areas. Not for outdoor rain use. No water immersion.

Question 10

What is the installation method? Is the installation difficult?

Accepted Answer

Supports flange/threaded connections for horizontal pipelines. Vertical installation for special conditions. Simple installation with detailed instructions for electricians.

Question 11

Is the valve calibrated before delivery? Does it need on-site calibration?

Accepted Answer

Valves are pre-calibrated for full open/close, zero point, and range. Direct use upon arrival. On-site recalibration is quick and easy if needed.

Question 12

What are the common precautions during use?

Accepted Answer

Avoid overpressure/temp and overload. Use bypass and steam trap to prevent water hammer. Install filter if medium has impurities. Do not pry actuator. Operate regularly if idle to prevent scaling.

Question 13

Do you support personalized customization services?

Accepted Answer

OEM/ODM customization includes materials, pressure, sealing, voltage, signals, explosion-proof, heat dissipation, logo, cable length. Tailored solutions for projects.

Question 14

What is the warranty policy and after-sales service?

Accepted Answer

2-year free warranty. Non-human actuator/valve damage repaired/replaced free. Lifetime tech consultation, remote support. Dedicated liaison for overseas projects.

Question 15

What is the minimum order quantity and delivery time?

Accepted Answer

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

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