Siemens Intelligent Temperature Control Valve Used in Heating Network of Thermal Power Station

In order to meet the growing demand, we are constantly changing the way we produce our Lithium Bromide Shell And Tube Heat Exchanger, Lithium Bromide Solution 48%-55%, Carrier Centrifugal Chiller by adopting new technologies. Since our company was founded for many years, with the care for and help of friends, we have rapidly developed and have gotten stronger in the industry. We sincerely hope to strengthen the continuous interaction with new and old customers and achieve common development through mutual cooperation, mutual benefit and reciprocity. In the cultural system, we embed the main cultural concepts in the corporate spirit, corporate mission and pursuit, and corporate core values.

Zhenjiang Fulaier Refrigeration Engineering Technology Co., Ltd. was established in 2003. It is a professional technical service enterprise integrating central air-conditioning host sales, spare parts sales, and unit repair and maintenance.

The company's main business scope includes: custom processing of lithium bromide solution; sales of lithium bromide special filters; sales of central air-conditioning chillers; sales of various parts of central air-conditioning.

Siemens actuator

Electro-hydraulic actuators for valves SKC32 SKC82 SKC62 SKC60

SKC32 working voltage AC 230V three-position control signal

SKC82 working voltage AC 24V three-position control signal

SKC6 working voltage AC 24V control signal DC 0-10V, 4-20mA or 0-1000Ω

SKC6 has flow characteristics selection, position feedback, stroke calibration, LED status indicator, priority control function

SKC62UA has the following functions: running direction, stroke limit control, sequence control with adjustable starting point and range of action, action according to the antifreeze protection monitor QAF21 and QAF61 signals

Driving force 2800N

Actuator model (with or without spring return function)

Installed directly on the valve without adjustment

Manual adjustment and valve position indicator

Optional functions: auxiliary switch, potentiometer, stem heater and mechanical stroke inverter

SKC U has passed UL certification

Standard electronic module

Principle of electro-hydraulic actuator

Open the valve. The hydraulic pump (6) pushes the hydraulic oil in the oil storage chamber (3) to flow into the pressure chamber (8), thereby moving the pressure cylinder (2) downward. The valve stem (11) contracts and the valve opens. At the same time, the return spring (4) is compressed.

Close the valve. Actuating the solenoid valve (5) allows the hydraulic oil in the pressure chamber to flow back to the oil storage chamber. The compressed spring is released to push the pressure cylinder upward. The valve stem is extended and the valve is closed.

Manual operation mode. Turn the manual regulator (1) clockwise to move the pressure cylinder down and open the valve. At the same time, the return spring is compressed.

In manual operation mode, the control signals Y and Z can further open the valve, but cannot move to the "0%" stroke position of the valve. If you want to set the position manually, turn off the power or interrupt the control signals Y and Z, the "MAN" red indicator light will be on.

Note: Controller for manual operation. When setting the controller for manual operation for a longer period of time, it is recommended to adjust the actuator to the desired position through manual adjustment. This ensures that the actuator remains in this position during this period of time. Note: When the controller is set to automatic control, don't forget to switch to automatic operation.

Automatic mode. Rotate the manual adjuster counterclockwise to the end limit. The pressure cylinder moves up to the "0%" stroke position of the valve. The red indicator light marked "MAN" goes out.

Minimum volume flow. The actuator can be manually adjusted to a stroke position> 0% for applications that require a constant minimum volume flow.

Spring return function. SKC32.61, SKC82.61... and SKC62... actuators have a spring return function and are equipped with a solenoid valve that opens when the control signal is lost or power is cut off. The return spring makes the actuator return to the "0%" stroke position and closes the valve, which meets the safety requirements of DIN 32730.

Technical parameters

Size

Siemens valve body

Basic technical parameters

●Valves with medium temperature of -10…150℃

● The valve body is gray cast iron EN-GJL-250 or above

● DN 25…150

● k vs 6.3…400 m 3 /h

● Flange type 21, flange design is B

● VVF42..KC, with pressure compensation function, suitable for high pressure difference applications

● It can be equipped with electric actuator SAX.. or electric hydraulic actuator SKD.., SKB.., SKC..

Application: As a regulating or shut-off valve, used in boilers, central heating and refrigeration equipment, cooling towers, heating equipment, ventilation and air handling units.

Dimensions

Installation

Product display

To be able to give you benefit and enlarge our business, we also have inspectors in QC Team and assure you our greatest service and products for Siemens Intelligent Temperature Control Valve Used in Heating Network of Thermal Power Station. With the progress of technology and changes in the market environment, we timely put forward the comprehensive implementation of the three major strategies of intelligence, refinement and internationalization. With years of accumulated experience, the company provides customers with high quality, stable and reliable, technological innovation, preferential price products and perfect after-sales service.