Download: QEV semi-auto unit for under $20

By hw97karbine


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Semi-automatic valve unit made from a cheap Quick Exhaust Valve and Slide Valve, tested at 110 psi hooked up to a compressor.

QEV specs:

Model QE-02
Gold Tone Port Diameter 16mm/ 5/8"
Inlet/ Outlet Ports Diameter 12.5mm/ 1/2"
Flow Medium Air
Operating Pressure 0-0.8 kgf/cm2
Working Temperature 0 - 60 oC
Total Size 52 x 36 x 28mm/ 2" x 1.4" x 1.1" (L*W*T)
Main Material Aluminum Alloy
Color Black & Gold Tone
Net Weight 105g

Slide Valve specs:

Material Metal
Male Thread Outside Diameter(Approx.) 13mm / 33/64"
Female Thread Inside Diameter(Approx.) 13mm / 33/64"
Total Size (Approx.) 27 x 57mm / 1 1/16" x 2 1/4" (Max. D * L )
Color Silver Tone, Blue
Weight 44g