Question 1

What is a linear electric control valve?

Accepted Answer

A linear electric control valve is an automatic valve with a linear actuator and valve body, adjusting flow, pressure, temperature, and liquid level with precision. It accepts analog signals for automatic valve adjustment and is vital in HVAC, chemical, and water treatment systems.

Question 2

What types of electric control valves do you have?

Accepted Answer

Our linear electric control valves include standard on-off, intelligent modulating, high-temp, and low-temp types, adaptable to pressure, flow, and temperature conditions.

Question 3

What industries and scenarios are linear control valves suitable for?

Accepted Answer

Widely used in HVAC, chemical, power, food, and other industries, suitable for regulating steam, water, air, oil, and chemical liquids.

Question 4

What nominal diameters and pressure ratings does the valve support?

Accepted Answer

Diameters from DN15 to DN300. Pressure ratings: PN16, PN25, PN40, PN64, and ANSI Class150/300. Customizable to pipeline conditions.

Question 5

What control signals and modes does the valve support?

Accepted Answer

Modulating type supports 4-20mA, 0-10V signals. Digital supports RS485 Modbus-RTU for remote control. On-off supports switch control. Compatible with PLC, DDC, thermostat, and management systems.

Question 6

What is the supply voltage of the actuator?

Accepted Answer

Power options: AC220V, AC110V, AC24V, compatible worldwide. Consumes power only when adjusting, with near-zero static consumption, ideal for continuous use.

Question 7

Does it have a feedback signal function?

Accepted Answer

All models include opening feedback. Modulating type outputs 4-20mA/0-10V feedback, while on-off type provides passive contact feedback for open/closed. Staff can monitor valve status in real-time via upper computer system, enabling centralized monitoring and remote operations.

Question 8

What materials are common for valve body and internal parts?

Accepted Answer

Valve bodies are available in cast iron, cast steel WCB, 304/316L stainless steel. Valve core and seat use standard stainless steel. Seals are soft (PTFE, zero leakage) or hard (alloy, high pressure/temperature resistant). Special alloys for corrosive media can enhance corrosion resistance.

Question 9

What is the protection grade?

Accepted Answer

Standard actuator is IP54. Upgraded version is IP65 for dust and humidity protection, suitable for humid pump rooms. Not for outdoor rain use or long-term water immersion.

Question 10

What is the installation method?

Accepted Answer

Supports flange and threaded connections, ideal for horizontal pipelines. Custom vertical installation available. Simple installation, easy wiring, English instructions provided. Ordinary electricians can handle installation and commissioning.

Question 11

Are valves calibrated before delivery?

Accepted Answer

Valves are pre-calibrated for full open/close, zero, and range. Ready for use upon arrival. Customers can alter signal logic and range on-site via control panel or software for quick recalibration.

Question 12

What are the common precautions during use?

Accepted Answer

Avoid overpressure, overtemperature, and overload. Use bypass and steam traps for steam to prevent water hammer. Install a front-end filter for impurity-laden media. Do not apply external force to actuator. Regular operation is advised during idle periods to prevent valve core scaling.

Question 13

Do you support personalized customization services?

Accepted Answer

OEM/ODM customizations include valve material, pressure, seal type, voltage, signal, explosion-proof grade, heat dissipation, LOGO, cable length. Tailored fluid regulation solutions available based on project needs.

Question 14

What is the warranty policy and after-sales service?

Accepted Answer

2-year warranty covers actuators and valve bodies against non-human damage, with free repair or replacement. Lifetime technical support, remote commissioning, and troubleshooting. Overseas projects receive dedicated technical liaison for problem resolution.

Question 15

What is the minimum order quantity and delivery time?

Accepted Answer

Support 1 piece MOQ, sample orders, and bulk projects. Standard models in stock, ship in 2-5 days. Customized versions with special features ship in 7-15 days. Long-term bulk supply supported.

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