Air Brake Valve Diaphragm Life Improvement
Heavy truck air brake systems utilize pneumatic valves to control the airflow that actuates the tractor and trailer brakes. One such valve, a Quick Release Valve, closes the air system when the trailer is disconnected from the tractor to maintain pressure in the tractor. The valve contains a rubber diaphragm that is expected to actuate 750,000 to 1,000,000 times over its life. One customer was not reliably reaching that life with a fabric reinforced gasket.
Trostel developed an HNBR diaphragm with superior abrasion and flex fatigue resistance. This pure rubber part outlasts the fabric reinforced material and provides consistently better performance.