The Track-Line Rising Stem Ball Valve offers a unique, highly-reliable valve with positive shut-off and repeated re-sealing capability. The key to the success of the valve is the rising stem that lifts the ball away from its seat before turning, so that the seats are protected from wear and degradation from the rotation. Some of the key features of the valve are: High Integrity, Zero Leakage Critical Service. Temperature and Process, Pressure and Cycling Friction Free Sealing World-wide VALVE SERVICE Support 3 in. (7.6 cm), ANSI 600 rated Multiple sizes and pressure ratings Raised face flange -50 deg F to 500 deg F (-45.5 deg C to 260 deg C) operating temperatures Applications include hot oil systems, mole sieve dryers and equipment isolation Unique design mechanically energizes seal by cam action Single-seat design Bi-directional sealing with zero leakage Injectable packing Self-cleaning In-line repairable

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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