Is there an inverse proportional valve for the servo cylinder on the air compressor? Or all intake valves have an inverse proportional valve, if so, how to adjust it?

Proportional adjustment pneumatic valve (figure 1)? Inlet pressure of P65438 +0? Relatively small,? The washer won't lift. The small conical disk is fully opened. At this point, Outlet pressure P2? With air inlet P 1? Increase and increase play the role of proportional adjustment.

1 1? Valve body 2 1? Screw with damping hole 3 1? Insert 4 1? Adjustable knob? 5 1? Upper spring seat 6 1? Big spring 7 1? Lower spring seat 8 1? Piston 9 1? Gasket? 10 1? Small disc (cone)? 1 1 1? Reset the small spring 12 1? Fine adjustment knob

Figure 1? Proportional regulating pneumatic valve

When the inlet pressure P 1? When it is increased to a certain value, the gasket pressure at the air inlet is P 1? , the force of the big spring W 1? , reset the small spring force W2? And outlet pressure P2? Move to the left under the influence of. At the same time? The small conical disc will also move to the left, which will reduce the flow area of the orifice. So that the outlet pressure P2? With the inlet pressure P 1? Increase or decrease, play the role of anti-proportional adjustment.

When the inlet pressure P 1? When the set maximum value is reached. The washer and the reset spring move to the left to the maximum. The small cone disk completely blocks the gas outlet, that is, the flow area of the orifice is zero, and the gas can only go out from the nearby orifice. P2 at this time? Is it 0? . The pre-tightening force of large and small springs can be adjusted by adjusting the fine-tuning knob. So that the range of working pressure can be adjusted.