Shenzhen Best Gas Equipment Co., Ltd. (13537502453 Miss Li 0755-28145886) agent United States Belgas valve / regulator / relief valve, U.S. Belgas Bell P37 regulator contains many Belgas P38 regulator characteristics, but the price is lower. Under a flow of 110 cubic feet / minute, P37 may be available with other vendors on the market comparable to the flow rate, it is recommended that the use of the pressure relief valve should be consistent with NFPA 58. (Miss Li: 13537502453 0755-28145886) brand: Belgas Model: P37 inlet pressure: 400 psi (28bar) outlet pressure range :0-10PSI ,0-30PSI ,0-60PSI ,0-125PSI; diameter: 1/2 ", 3 / 4 "Features: balanced pivot design foam / overflow maximum flow 16.5M / hour (110 SCFM) UL certification Bellofram rolling diaphragm advantages: closed within a large flow positions in high-traffic use ※ Shenzhen Ai Musen Gas Equipment Co., a ※ Address: Room 201, Bao'an District, Shenzhen Longhua Town, Sheng Industrial Area C 221 ※ Tel :0755 -2,814,588,613,537,502,453 Miss Li ※ Fax :0755-29471809 ※ service QQ: 1,311,205,468 719 831 919 * E-mail: emsongaskji@163.com 1311205468@qq.com ※ Website: http://www.emsongas.com