These are designed to prevent catastrophic failure in a pump system.  They are used as a back up to an unloader or regulator valve and relieve pressure in the system should there be some type of dramatic increase in the system pressure.  Rated from 100 PSI (7 Bar) to 58,000 PSI (4000 Bar), they also can handle the entire flow range of the pumps.

ACCESSORIES
Service & Repair

Giant provides service on each pump and accessory that we sell. Many basic repair procedures are covered in the Giant repair manual. For all other questions on service or repair needs please contact your local Giant distributor.