pq-400 double spring injector and nozzle tester

pq-400 double spring injector and nozzle tester

 introduce:

our highly efficient injector nozzle tester is made available at best competitive prices. we are widely exporting to places like canada, usa, tanzania, indonesia, singapore, south america and middle east. 
main button
a: internal pressure meter
b: air supply meter
c: air supply throttle
   -if the throttle whirls in clockwise, quantity of air input will be less, and oil input is less as well. inverse, the input oil will increase.
d: governor valve
   -if the governor valve circumgyrate to the bottom, rate of oil pressure and air pressure is 100:1. for example, when air pressure 7kg, the oil pressure will be 700kg. 
e: air switch valve
   -the air valve is opened by pulling, and closed by pushing.