Pilot-operated check valves, literally the explanation is to control the flow of liquid. The principle is simple, that is, when the control port is not pressure oil, the fluid can only be from one end to the other; when the control port through the pressure oil, positive and negative oil can be free to pass. Pilot-controlled check valves are widely used in metallurgical hydraulic systems due to low leakage, good locking performance, reliable work, such as ironworks mud gun rotary hydraulic device, electric furnace electrode lifting circuit and so on. Below, the editorial is for the relevant industry to provide manufacturers to introduce.
Pilot-operated check valves
Pilot-operated check valves are valves that rely on the control of fluid pressure, which can be used to reverse the flow of the check valve. This valve in the coal mine machinery hydraulic support equipment occupies a more important position. Liquid-controlled check valve and ordinary check valve is different is more than one control oil line K, when the control oil line is not connected to the pressure fluid, liquid-controlled check valve like ordinary check valve work, pressure oil only from the inlet to the outlet, can not reverse flow. When the control oil line has control pressure input, the piston top rod moves to the right under the action of pressure oil, and opens the check valve with the top rod, so that the inlet and outlet ports are connected. If the outlet port is larger than the inlet port can make the oil flow in the reverse direction.
Application
(1) Maintaining pressure.
(2) "Support" for hydraulic cylinders.
(3) Realizing hydraulic cylinder locking.
(4) High flow rate discharge.
(5) As a charging valve.
(6) Combined as directional valve.
Dongguan Futuo Hydraulic Mechanical & Electrical Co. Dongguan City.
Main products: "hydraulic valves"?" Hydraulic Components"?" GAUGE pressure gauge" and so on.
Yueqing Huanghua JIAYU Coal Machine Factory
Company Profile: Yueqing Huanghua JIAYU Coal Machine Factory is located in the beautiful and rich East China Sea, Oujiang River mouth of the north coast of Wenzhou Qili Harbor Huanghua Industrial Park.
Main products: directional valves, pilot operated check valves, check locks and so on.
ZHEJIANG ZHONGNENG COAL MINING MACHINERY EQUIPMENT CO.,LTD
Company Profile: Zhejiang Zhongneng Mining Machinery Co., Ltd is located in the beautiful scenery of Yandang Mountain Nanchu, is located in the East China Sea coast of the Zhejiang Province Yueqing City, Huanghua Industrial Park, the transportation is very convenient.
Main products: directional valve series, hydraulic check valve series, safety valve series, etc..
Foshan Pengrui Hydraulic Equipment Co., Ltd
Company Profile: Foshan Pengrui Hydraulic Equipment Co. Hydraulic system (hydraulic station) in the industry.
Main products: ? Hydraulic station, gantry grinder hydraulic station, hydraulic cylinder, etc..
In the hydraulic check valve play a role in the premise that the pressure must be controlled smoothly, can not lose pressure; loss of pressure of the hydraulic check valve becomes the same as an ordinary check valve. Therefore, the relevant metallurgical equipment industry needs to understand its structure as well as the principle, so as not to cause undeserved failures, mistakes. Above the introduction of the pilot operated check valve and related manufacturers here, the need for business can refer to the content of the article and make a good choice. More exciting content, please continue to pay attention to Tubaboo.