Electric control valves are widely used in building automatic control systems such as urban heating, gas supply, air conditioning, and refrigeration. It is also applicable to automatic control systems for production processes in industries such as chemical, petroleum, metallurgy, power, and food. The VF40.VF41.VF52.VF61.XF40.XF41.XF52.XF61 series Siemens steam electric temperature control valve adopts the original Siemens controller and electric actuator from Germany. The sensor is combined with the pressure self balancing valve body provided by Xinao Technology, which has the characteristics of precise control, large shut-off force, self balancing anti lock braking, etc. 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 achieve precise matching with the system, eliminate static errors, run smoothly, respond sensitively, and extend the service life.
The controller has PI and PID regulation functions, precise 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). The electric hydraulic actuator has a power-off automatic reset protection function, can receive 0-10V or 4-20mA signals, and has a valve position feedback 485 communication Modbus protocol remote control function.
The optional Xinao pressure self balancing valve body flow regulating valve is 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 adjustable ratio, tight sealing, high temperature resistance, and anti cavitation.
Product Features
Equipped with proportional integral (PI) or proportional integral derivative (PID) adjustment functions, the control is stable and accurate.
a, Flexible adjustment of control parameters can be made for different on-site working conditions to achieve system optimization.
b, The controller can read the current temperature value and observe the working status of the valve.
c, Expandable functions, such as remote settings, temperature compensation, over temperature alarm, day night/winter summer conversion.
d, The valve body seal adopts a V-shaped high-temperature sealing component to prevent the possibility of valve stem failure or leakage.
e, The valve stem or seat is paired and ground to ensure that the leakage is far below the national allowable standard.
II The functional parameters of Siemens regulating valve are as follows:;
(Suitable for chilled water, low-temperature water, domestic hot water, and high-temperature hot water in closed-loop or open-loop systems)
Two way valve flange connection, in compliance with standards; ISO7005
trip; 40mm
Leakage rate; 0...0.02%Kvs
Medium temperature- 10...150ºC
Popular characteristics of valves;; Equal percentage
Adjustable valve ratio;> one hundred
Allowing work pressure; 1600Pka
Valve body material; Ductile iron EN-GJL-250
Valve internal material; Stainless steel 304L
Quota pressure; PN16
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