Features & Benefits • Excellent Reliability - Internal Counterweight to balance disc under low load conditions - Direct deposited seats - Tilting disc design for quick closing due to lower centre of gravity - Lightweight disc with minimum travel, for quick closing in less than 1 second - Optimum performance under all flow conditions - Self-draining geometry - Pneuamtic Power Assistance acts directly onto disc, without leakages to inhibit operation • Low Cost Maintenance - Expanded graphite gasket pressure seal design - Nitrided hinge pin, supported in nitrided bearings, giving a low coefficient of friction and hard wearing surface for maximum performance - Easy access through cover - Simplified seat refurbishment, only requires lapping - Longer seat life due to non-scuffing action of seat to disc geometry • Improved Performance - Aerodynamic self aligning tilting disc design for low pressure drop characteristics - Automatic self closure on flow reversal - Inclined seat geometry combined with conical seat & disc for tight seal without scuffing - No hinge pin gland to inhibit performance Technical data Sizes : 6” – 28” ASME : ASME B16.34 – 1996 Pressure Class : 150, 400, 600

我公司创建于1999年，座落于渤海之滨、美丽的狮城----沧州市，其交通便利，是京沪、石黄、津汕等高速公路的交汇处，京沪铁路直达厂区，和沧州市中化钢材市场为邻，具有得天独厚的地理优势。 公司下属宏瑞钢管厂、宏瑞管件厂，拥有φ219mm－φ508mm高频直缝焊管、φ57mm—φ426mm热轧钢管、φ245mm—φ820mm热扩钢管、φ219mm—φ2540mm壁厚6mm—18mm螺旋钢管多条生产线。加工大口径厚壁卷管、无缝管及各种卷板大小头、焊接三通、弯头、法兰等管件 。经销包钢、成钢、天津、宝钢等各大钢厂，各种厚壁异型无缝钢管（φ108-426*10mm-40mm)及合金管。还可根据用户要求生产各种型号、规格、材质的热轧钢管、热扩钢管、螺旋钢管及管件。 　

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