What are the advantages and disadvantages of the F011068 Norgren valve group pilot valve?

　　F011068 NORGREN valve group pilot valveWhat are the advantages and disadvantages?

　　1. According to the input signal, the driving liquid bridge with fixed liquid resistance controls the main valve or secondary valve;

　　2. The flow rate of the first-level test valve is usually only about 1 liter/minute, many 3 liters/minute. The flow rate of the second-level test valve needs to be determined based on actual needs.

　　3. The input signal is relatively small;

　　4. You can accept various input methods, such as manual, electric, hydraulic, pneumatic, mechanical cam, electric ratio, etc.;

　　5. In the case of variable pump control, various pilot valves form a modular structure and are easy to select multiple functions; increasing the dominance and feel of the basic safety port.

　　6. The test valve itself is usually a small specification control valve, mainly a pressure control valve.

　　F011068 NORGREN valve group pilot valveWhat is the role?

　　1. The pilot valve is an auxiliary valve used to manipulate the control mechanism in other valves or components. The pilot valve consists of an electromagnet, valve core, gearbox, valve, stitching, steel ball, steel boy, Reset spring, etc. The hard-sealed butterfly valve core is connected to the valve body. One end of the transmission column is connected to the electromagnet, and the other end fixes the steel ball. Therefore, the thrust of the upper magnet and the force of the lower spring will act on the two steel balls and the pin rod. There is a part of an annular control chamber between the end of the Timining rod and the valve core, which is connected to the radial passage on the valve core. This is a two-stage three-way double-double ball normally closed solenoid valve.

　　2. The pilot valve consists of an electromagnet, valve core, gearbox, valve, stitching, steel ball, steel boy, Reset spring, etc. The valve core and valve body are threaded. One end of the transmission column is connected to the electromagnet, and the other end fixes the steel ball. Therefore, the thrust of the upper magnet and the force of the lower spring will act on the two steel balls and the pin rod. There is a part of an annular control chamber between the end of the Timining rod and the valve core, which is connected to the radial passage on the valve core. This is a two-stage three-way double-double ball normally closed solenoid valve. When the electromagnet is damaged, the pressure oil input from the P chamber directly acts on the boy of the pilot valve, while the elasticity of the Reset spring also takes effect.

　　3.F011068 NORGREN valve group pilot valveTherefore, the stress oil circuit and control oil road block, control oil road and oil return road. In this case, the oil circuit is controlled in a loaded state; when the electromagnetic electrical potential is applied, the transmission column pushes down the steel ball, closing the upper valve port and opening the lower valve port. As a result, the passage controlling the oil road and oil return road is blocked, while the pressure oil road and control oil road are open. The controlled chamber of the pressure oil through the pilot valve enters the valve body.