Explosion-Proof Type Electric Control Ball Valve

We strictly control product quality, making our Steam Type Chiller For Shuangliang, Hot Water Chiller For Shuangliang, Lithium Bromide Solution sell well abroad. We will continue to create value for our customers with our management experience, excellent sales service, strict quality management system and scientific overall marketing methods. We can quickly respond to customer needs and solve customer problems immediately. Our fast and efficient service tenet makes every customer rest assured. While constantly improving our management, we strive to improve the product quality and service level, and operate in strict accordance with the requirements of the international quality management system. The company's business scope covers the entire China and many overseas countries and regions.

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

Professionalism is a work ethic that reflects our focus on creating lean, efficient and superior Explosion-Proof Type Electric Control Ball Valve. The enterprise will take "enthusiastic service, professional production, affordable price" as the concept. We have a strict and complete product testing system and testing equipment, and all production materials are strictly in and out.