High Pressure Equipment Co. has developed a new line of block and bleed (B&B) needle valves delivering operation to 20,000psi. These new needle valves are offered in both single and double block and bleed configurations. Both valve styles have Type 300 stainless steel tee handles with a non-rotating stem design as well as with optional wetted parts and optional O-rings available. HiP’s (MVBB series) single block and bleed needle valves provide a small valve body/package and Teflon packing to 400F with tube sizes of 1/4in, 3/8in, 9/16in medium pressure and 1/4in, 3/8in, and 1/2in FNPT. The MVBB series is designed for calibration operations by providing controlled flow to high- pressure hydraulic and pneumatic systems through both shut-off regulation and diversion. HiP’s (DBB series) double block and bleed needle valves are manufactured from cold worked stainless steel and 17-4-H1075 with 1/4in to 1in medium pressure, coned, and threaded connections and Teflon packing from 0F to 400F. The DBB series is suited for pressure monitoring and testing, chemical injection, and drain line isolation applications.
