Latching Solenoid Valve- Manufacturers Factory Suppliers From China

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In order to further implement the security work and improve the emergency handling capacity of the company’s production staff, At  4 PM on May 21, BLCH Pneumatic Technology Co., Ltd. carried out fire emergency drill and training, and invited Yueqing Antong Safety Technology Service Co., Ltd. to participate in the on-site guidance.

Urgent notice: “the company first floor waste warehouse fire!”As the fire control room alarm sounded, the fire drill officially began.

The security team quickly closed the fire surrounding, and call 119 for support; The evacuation team guided the personnel to immediately implement the fire fighting, and finally the fire was under control, and the on-site personnel  were transferred in time. During the exercise, each teams responded positively, their responsibilities were clear, and the exercise procedure was well organized and orderly.

After the fire drill, we organized to learn the early fire fighting knowledge evacuation and escape knowledge and fire extinguishers and other fire equipment  correct operation method on the site.

The fire emergency exercise fully enhanced the awareness of fire safety of all the staff of the company, strengthened the knowledge of fire safety and the actual combat skills of the correct use of equipment.

Congratulations to BLCH Pneumatic Technology Co., LTD. On May 27, 2017, the electric proportional valve ITV2050 series products successfully passed the life test and will be on sale soon  

Electrical proportional valve is based on the size of the control signal to adjust the spool section area.  In order to achieve the adjustment of pressure size of the process objectives and requirements.  The flow control of electric proportional valve can be divided into two kinds.  One is switch control, one is continuous control, servo valve and other valve is different, its energy loss is greater, because it needs a certain amount of flow to maintain the work of the pre-stage control oil circuit.  One is switch control: either fully open, or fully closed, flow or maximum, or minimum, no intermediate state, such as ordinary electromagnetic through valve, electromagnetic directional valve, electro-hydraulic directional valve.  The other is continuous control: the valve port can be opened according to the need for any opening, so as to control the size of the flow, this kind of valve has manual control, such as throttle valve, also have electronic control, such as proportional valve, servo valve.  Electric proportional valve through electrical signals to control the gas pressure, can realize the continuous and stepless adjustment of the gas pressure, can realize remote control and program control, for the need for continuous or stepless adjustment of the gas pressure, especially suitable for the electrical proportional valve.

Features:

1) It can realize the stepless adjustment of pressure and speed, and avoid the impact phenomenon when the normally open switching valve changes direction.

2) It can realize remote control and program control.

3) Compared with discontinuous control, the system is simplified and the components are greatly reduced.

4) Compared with the hydraulic proportional valve, small size, light weight, simple structure, low cost, but the response speed is much slower than the hydraulic system, is also more sensitive to load changes.

5) The use of small power, less heat, low noise.

6) No fire, no pollution to the environment.  It is less affected by temperature changes.

DIFFERENT TYPES OF FITTINGS

Fittings come in all shapes and sizes, and can be connected in a variety of ways. Shaped fittings ensure the effective design of a pneumatic system, with various unions and adaptors to reduce or increase the pipe diameter, or provide a neat continuity across fittings.

The most common types of connection are:

Compression

Compression fittings rely on compressive force to connect, and need no soldering to install. There are several ways to compress the fitting and most need no tools, but rely on a ferrule, ring or metal gasket to make the seal. Some types require a nut to be tightened, while others have a sharpened ferrule which bites the tube when compressed.

Threaded

Threaded fittings have screw threads on the outer (male) or inner (female) surfaces, so that they can match other threaded fittings. Straight threads are the simplest, but tapered threads provide a better seal.

Push-In

Push-in Fittings allow the tube to be secured by pushing it through a collet or grab ring and can be released simply by pushing a release collar.

Push-on (barbed)

The tube is pushed as far as it can go over a barbed end on the fitting, and secured by tightening a nut onto the combined assembly.

T-shaped

A T-shaped intersection connects three flow sections, allowing flow to be split apart or combined. Cross-shaped fittings do the same for four flow sections.

Elbow

Elbow fittings change the flow direction at various angles without the risk of tube kinking. The most common elbow angles are 45° and 90°, but elbows also exist in 22.5°.

Reducer

Reducer fittings connect two or more conduits of differing sizes.

 

 

 

From Internet

Solenoid valve is an automatic basic element used to control the direction of fluid, belonging to actuator; It is usually used in mechanical control and industry
Above the valve, the medium direction is controlled, so as to control the valve switch.

Solenoid valves are divided into three categories in principle:

1)    direct acting solenoid valve:

Principle: when energized, the solenoid coil generates electromagnetic force to lift the closing part from the valve seat and open the valve; when powered off, the electromagnetic force disappears, the spring presses the closing part on the valve seat and the valve closes.

Features: it can work normally under vacuum, negative pressure and zero pressure, but the diameter generally does not exceed 25mm.

2)    distribution solenoid valve Direct acting solenoid valve:

Principle: it is a combination of direct acting and pilot type. When there is no pressure difference between the inlet and outlet, the solenoid force will directly lift the small pilot valve and the closing parts of the main valve upward and open the valve. When the inlet and outlet reach the starting pressure difference, the solenoid force will pilot the small valve, the pressure in the lower chamber of the main valve will rise and the pressure in the upper chamber will fall, so as to facilitate the opening of the valve Push the main valve upward with differential pressure; when power is off, the pilot valve uses spring force or medium pressure to push the closing part and move downward to close the valve.

Features: it can also act when there is zero differential pressure or vacuum and high pressure, but the power is large, so it must be installed horizontally.

3)    pilot solenoid valve:

Principle: when power is on, the solenoid force opens the pilot hole and the pressure in the upper chamber drops rapidly, The pressure difference between the lower part and the higher part is formed around the closing part, the fluid pressure pushes the closing part to move upward, and the valve opens; in case of power failure, the spring force closes the pilot hole, the inlet pressure quickly forms the pressure difference between the lower part and the upper part around the valve closing part through the bypass hole, and the fluid pressure pushes the closing part to move downward to close the valve.

Features: the upper limit of the fluid pressure range is high, which can be installed arbitrarily (to be customized) but the fluid differential pressure condition must be met.