Supply overpressure protection for protecting personnel and equipment HP operation line for cementing/fracturing pumps, pressure vessels and other equipment under HP and high displacement. The model available: AQF02-105,AQF02-42 Rated: 6000PSI - 15000PSI Feature: With adjustable nut when pumping pressure or operating pressure exceed the preset value, the safety valves will automatically open for pressure release. While the pressure is less than the pre-set value, they will be automatically closed. Construction, connecting mode and size are same as SPM equivalent products. The butterfly spring inside can realize opening/closing of valves, therefore safety valves can protect people and equipment without shutting down relevant equipment. They are more reliable than shear type safety valves.
