Every valve is manufactured with AMO SOP

raw material

Raw Material Preparing

AMO only accept the high quality brass & EPDM rubber that pass the AMO internal standard tests
•Confirmation of product design & specs
•Tensile test
•Rigidity test
•Surface quality test


All the AMO metalwork according to the principles as bellow
•Cut the raw materials into pieces according to product dimensions by auto cutting machine
•Drill, Chamfer & Thread by the semi-automation meter lathe
•Clean up the stem covered with oil by ultrasonic cleaners

Thread 3-2.jpg
Chamfer 23-3
Rubber Mixing 30-1

Rubber Mixing

Rubber mixing is the most important step among the whole processes which determine the reliability of the valve. AMO family develop & adopt exclusive formula to strengthen the valve performance
•High tensile force
•Excellent surface gloss
•Outstanding adhesive performance


Combine metal with rubber in imported vulcanizing machine though accuracy control the temperature & time, we can get the satisfying overall valve.
Vulcanization 14-3.jpg
Vulcanization 16-2


We have high-end auto core & cap assembly machines, Making the valve cores & caps assembly more accurate, guaranteeing the normal torque value in all parts of the valve.

Quality Assurance

All finished valves will be inspected by experienced workers according to our line to ensure all the function satisfying your order.
Quality assurance 22-2.jpg
Packaging 13-2


We will then package the valves carefully in designated packaging to prevent them from shocking during delivery.

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