Gauge isolator valve protects the pressure gauge from damage due to pressure surges, Hydraulic shock and mechanical vibrations. The fluid is completely isolated from the gauge and connected directly to the gauge port as long as the knob is kept pressed thereby giving instant and accurate readings on the gauge. Has a 3000 psi working pressure. Includes a guarantee of below 5cc/min. Drain leakage in a new valve. Is crafted from a high grade investment casting body. Requires minimum force to operate. Has easy plumbing into the system. Is tested 100% under rigid parameters. Can be panel or line mounted. Meets most operating conditions