Pilot Operated Pressure/Vacuum Relief Valve

The 9800 series pilot operated relief valve has two principal advantages over other types of relief valves:1. It isbubble tight to set pressure.2. It is fully open at less than 10% above set pressure.These characteristics permit anoperating pressure nearer to the maximum allowable working pressure of the tank. High operating pressures reduceevaporation and total venting volume, thereby reducing product loss and cost of processing emissions.

Design Features:

◆Sizes available 2”~12”(DN50~DN300);
◆ Fully open at less than 10% above set pressure
◆Pipe away;
◆Designed and tested according to API 2000;
◆ The flanges are accordance with ANSI B16.5,or EN1092、JIS;
◆Available Materials: Aluminum、Carbon Steel、Stainless Steel、Special Materials
◆on Application;