8 Position Valve 8P-1S

Description:

The 1, eight-bit shift valve has eight working gears for the inverted R, neutral N, F1, F2, F3, F4, F5, F6, where the F4 is the air inlet, the F 1, F 2, F 3, F 5, F 6 port and the exhaust port as shown in Fig.

The 2, diagram shows the gear F1, where the pressure air enters the cavity through four ports and the inlet channel, when the pressure air of the cavity passes through the disc valve core and the valve plate, and the pressure air in the remaining working ports is discharged through the exhaust passage and exhaust outlet of the disc valve core.

The port connection on the bottom surface of the coupling plate is: 1,2,3,5,6 These five work ports are connected to the eight shift cylinder, and the 4-hole port system air source is the air intake interface.7 No take-over line, for the exhaust port.

Working principle:

Eight-bit shift valve with eight working positions, inverted R, neutral N, F1, F2, F3, F4, F5, F6. The handle is evenly assigned 8 positions over the arc between reverse R and F6.

In the neutral N position, the dial plate 31 at the lower end of the handle 4 just presses the external contact of the neutral protection switch 19, contacts the contact inside the protection switch and turns on the starting circuit of the starting motor.

Taken together:

The handle lever is in the neutral N position.Connect port 4 is the air inlet, connect the air source, and start the engine.At this time, 1,2 are the air outlet.

Pull the handle lever in the middle of N gear and R gear.1,2,3,5,6,7 have no pressure output.

Handle lever into R gear: 2 air outlet

Handle lever into F1 gear: 1,6 air outlet

Handle lever into F2 gear: 1,3,6 air outlet

Handle lever into F3 gear: 1,3,5,6 air outlet

Handle lever into F4 gear: 1,5,6 air outlet

Handle lever into F5 gear: 1,5 gas outlet

Handle lever into F6 gear: 5 gas outlet