Pneumatic valve design

　. Do not move away from hardening pneumatic valve position, or unable to close the pneumatic valves after new planting green land irrigation, this is common failure in the design of green space.
　　. Choose wrench or wheel can remove the pneumatic valves, timely after use to remove wheel, in order to prevent strangers casually open the pneumatic valve.
　　. Pneumatic valve shaft should be small not big, in order to does not affect the pneumatic valve replacement is advisable.
　　. As the winter frost, pneumatic valve is lower than pneumatic valve well, in order to build or borehole with thermal insulation material.
　　. Riser with cement build-in pneumatic valve, prevent replacement pneumatic valve when the riser bottom to take off the wire.