Temperature control valve, electric temperature control valve manufacturer

Working principle

　　Hebei Jiuyun Electric Temperature Control ValveIt is a typical application in temperature control fields such as HVAC. The controller has PI and PID regulation functions, accurate control, multi loop control, diverse functions, and can achieve control of fluid flow rate, pressure, pressure difference, temperature, humidity, enthalpy value, and air quality. The actuator has electric mechanical and electric hydraulic types, with manual and automatic adjustment functions, sensitive adjustment, large shut-off force, and adjustable flow characteristics (linear percentage). Electric hydraulic actuator with power-off automatic reset protection function, can receive 0-10V or 4-20mA signals and has valve position feedback function. The valve body is a flow regulating valve, suitable for regulating chilled water, low-pressure hot water, domestic hot water, high-pressure hot water, seawater, hot oil, and steam in circulation pipelines. It has good linearity, large adjustability, tight sealing, high temperature resistance, and anti cavitation

Basic principles

The temperature control inside the user's room is achieved through a radiator thermostatic control valve. The radiator constant temperature control valve is composed of a constant temperature controller, a flow regulating valve, and a pair of connecting components. The core component of the constant temperature controller is the sensor unit, namely the temperature bulb. The temperature sensor can sense changes in the surrounding environment temperature and generate volume changes, driving the displacement of the regulating valve core and adjusting the water flow of the radiator to change the heat dissipation of the radiator.

The temperature setting of the thermostatic valve can be manually adjusted, and the thermostatic valve will automatically control and adjust the amount of water in the radiator according to the set requirements, thereby achieving the purpose of controlling the indoor temperature. Temperature control valves are usually installed in front of radiators to automatically adjust the flow rate and achieve the desired room temperature for residents. There are two types of temperature control valves: two-way temperature control valves and three-way temperature control valves.

The three-way temperature control valve is mainly used in single tube systems with crossover pipes. Its diversion coefficient can vary within the range of 0 to, and there is a lot of room for flow regulation. However, it is relatively expensive and has a complex structure. Two way temperature control valves are used in both double pipe systems and single pipe systems. The resistance of the two-way temperature control valve used for dual tube systems is relatively high; The resistance for single tube systems is relatively low. The temperature sensing bulb of the temperature control valve is generally assembled as a whole with the valve body, and the temperature sensing bulb itself is the indoor temperature sensor on site. If necessary, remote temperature sensors can be used; The remote temperature sensor is placed in the room where temperature control is required, and the valve body is placed in a certain part of the heating system.

Product Overview

1SLDW-DN(DW series):

(1) Product Introduction

This product adopts original German or Honeywell controllers and electric actuators, combined with our company's pressure self balancing valve body, which has the characteristics of accurate control, high shut-off force, and self balancing anti lock braking. And it can flexibly adjust the proportional band, integration time and other parameters according to the different on-site system equipment used, so as to match the system, eliminate static errors, run smoothly, respond sensitively, and extend the service life.

(2) Advantages:

a. It has proportional integral (PI) or proportional integral derivative (PID) regulation function, ensuring stable control.

b. Flexible adjustment of control parameters can be made for different on-site working conditions to achieve system optimization.

c. The controller can read the current temperature value and observe the working status of the valve.

d. Scalable functions, such as remote settings, temperature compensation, heat metering and automatic meter reading, remote transmission, etc.

e. Most models can be manually operated during power outages.

(3) Disadvantages:

a. Installation and debugging must be guided by professional technicians.

b. There are certain basic requirements for the professional skills of operation and management personnel.

c. Selection calculation and configuration must be carried out by professional technical personnel