Electric temperature regulating valve

Electric temperature regulating valveThis statement

Electric temperature regulating valveThe characteristic of this valve is that it only requires a regular 220V power supply. Developed by Jiangsu Jingmai Automation Instrument, it utilizes the energy of the regulated medium to directly adjust and control the temperature of steam, hot gas, hot oil, gas and other media. It can also be used to prevent overheating or heat exchange. The valve has a simple structure, easy operation, wide temperature control range, fast response time, reliable sealing performance, and can be adjusted freely during operation. Therefore, it is widely used in hot water supply in chemical, petroleum, food, textile, hotel and restaurant sectors

Main component materials

Valve body and cover: HT200, ZG230-450, ZG1Cr18Ni9Ti

Valve core: ZG1Cr18Ni9Ti, Stellite alloy overlay welding reinforced polytetrafluoroethylene

Packing: polytetrafluoroethylene, flexible graphite

Push rod and liner: 2Cr13

Gasket: Rubber asbestos board, 10, 1Cr18Ni9Ti asbestos wrapped gasket

Bellows: 1Cr18Ni9Ti

Electric temperature regulating valveStructure and Principle

Before work, the main valve core is in the half open position and the sensor is in its natural state. Connect the power supply and fully open the main valve core. The medium flows into the main valve body in the direction of the arrow and heats the thermal storage tank through the valve core. When the temperature rises to the corresponding set value, the sensor generates a corresponding linear signal input to the integrated intelligent actuator, which then drives the valve stem and valve core to produce displacement, and closes the main valve core to stop heating. When the temperature is lower than the set value, the sensor generates a linear signal input to the actuator, which drives the valve core to gradually open, causing the medium to flow into the heat storage tank according to a parabolic characteristic and heat up to the set value. In this way, the controlled medium is always controlled within the set temperature range, thus achieving the purpose of temperature control.

Main Features

1. Used in conjunction with PT-100, PT-500, or PT-1000 temperature sensors, it has high control accuracy and fast response speed.

2. The temperature control setting is located outside the actuator, making it very convenient to set the temperature.

3. Digital display of measured temperature, concise, intuitive and clear.

4. The key component of the regulating actuator - the controller, adopts a relatively advanced hybrid integrated circuit, undergoes aging treatment, is sealed and cast with resin, and is box shaped, moisture-proof, shockproof, small in size, and highly reliable

5. Reasonably design upper and lower electrical limit functions, weak current control, safety and durability.

6. The mechanical structure is sturdy and compact, making wiring, installation, adjustment, and maintenance very easy.

7. Adjusting the sensitivity of the working zero point (start) and stroke full position (end) with a potentiometer is simple and easy.

8. The actuator has three protection functions: overload protection, temperature protection, and compression spring to ensure the tight closure of the valve.