The SBPR back pressure valve U.S. GO SBPR series back pressure valve SBPR back pressure valve U.S. GO SBPR series back pressure valve SBPR series back pressure valve is designed for precise control of the upstream vacuum, a large area of ??the diaphragm, semi-automatic vacuum support springs are lower than the pressure of the pressure control provides a precise operation. Application: analytical instruments gas or liquid sampling laboratory features: gas or liquid 316 L stainless steel or copper alloy 360 material, optional Monel and Hastelloy electrolytic polishing body than 25 Ra finish off sealing Operating temperature: -40 ° to 300 ° F (-40 ° to +148 ° C) and pressure control range is 1-30 psia (-27.88 in. Hg to 15.3 psig) Cv value: 0.2 ultimate pressure is 2 times the maximum working pressure burst pressure is four times maximum working pressure Weight 3.2 lbs (1.45 kg) recessed, mounted or panel install SBPR back pressure valve back pressure valve SBPR the GO SBPR series back pressure valve the United States the GO SBPR series back pressure valve