气体压力调节器回流819

隔膜 单级 金属

回流819回流819是一种下游先导控制的压力调节器，用于中高压应用。它特别适合在天然气分配的安装框架内使用，以及民用和工业使用的供应网络。回流819调节器根据欧洲标准EEN 334分类为在关闭(关闭失败)中反应的调节器。③下游压力范围:根据安装的先导装置(见先导部分)，从0.3 bar到74 bar。①最低工作压差:0.5 bar②最低环境温度:执行温度可达-40℃，②最高环境温度:+60℃;①进气温度:-20℃+60℃;②精度等级AC:最高1℃;50(2”);80 (3);100 (4);150(6”);200 (8); 250 (10”); 300 (12”). ¢ Flanged connections: Class 150-300-600 RF or RTJ, according to ANSI B16.5 and PN 16/40 according to EN 1092, ISO 7005. Materials:** ¢ Body: Cast steel ASTM A 352 LCC for classes ANSI 600 and 300; Cast steel ASTM A 216 WCB for classes Ansi 150 and PN 16/40. ¢ Head covers: ASTM A 350 LF2 forged steel ¢ Stem: AISI 416 stainless steel ¢ Plug: ASTM A 350 LF2 Nikel coated on sealing surface ¢ Seat: Nitril Rubber Vulcanized on a metal support ¢ Diaphragm: Rubberized canvas (performed by hot-pressing process.). ¢ Sealing ring: Nitril rubber ¢ Connection fittings: In zinc-plated carbon steel according to DIN 2353; Stainless steel on request.