主要零件和材质 Main parts and materials 产品结构特点 Construction features 1、产品按国家标准GB/T 12236设计制造,结构合理,密封可靠,性能优良。 产品特征 Spericfications 适用介质:水、气、油品、天然气和酸碱腐蚀性介质 技术规范 Technical specification 试验压力 Test prssure 止回阀结构长度和外接尺寸 Main connection dimensions
序号
NO零件名称
Accessor name材质 Material GB系列 1 阀体 Body WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M 2 螺柱 Bonnet bolt 35#, 304, 316 3 中垫 Gasket 不锈钢 Stainless steel+石墨 PTFE 4 阀盖 Bonnet WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M 5 螺母 Nut 35#, 304, 316 6 吊环 Eye bolt 35# 7 摇杆 Arm WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M 8 阀瓣并帽 Wedge 20Cr13, 304, 316 9 阀瓣 Wedge WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M 10 圆锥销 Pin 20Cr13, 304, 316 11 支架 Yoke WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M 12 外六角螺柱 Bonnet bolt 35#, 304, 316
2、阀瓣和阀座的密封面用铁基合金或司太立(stellite)钴基硬质合金堆焊而成,耐磨、耐高温、耐腐蚀,抗擦伤性能好,使用寿命长。
3、可采用各种配管法兰标准及法密封面型式,满足各种工程需要及用户要求。
4、阀体材料品种齐全,垫片可根据实际工况或用户要求合理选配,能适用于各种压力、温度及介质工况。
5、阀瓣围绕阀座外的销轴旋转,减少关闭时发生猛烈冲击。
6、销轴与阀瓣连接采用内装式结构,不存在外泄漏点,使用更可靠。
1. The products are manufactured according to national standard GB/T 12236, with reasonable structure, reliable sealing and excellent performance.
2. The sealing surface of disc and seat is made of ferrous alloy or stellite (stellite) cobalt carbide, which is durable, high temperature resistant, corrosion resistant, good abrasion resistance and long service life.
3. All kinds of piping flange standard and sealing cover type can be used to meet various engineering needs and user requirements.
4. The valve body material is complete, the gasket can be selected according to the actual working conditions or users, and can be applied to various pressure,temperature and medium conditions.
5. The disc revolves around the pin shaft outside the seat and reduces the impact when it is closed.
6. The pin shaft and disc connection are built in an internal structure, and there is no leakage leakage point, and the use is more reliable.
适用温度:-196~450℃
驱动方式:手动、气动、电动等
公称压力:1.0~6.4MPa
公称通径:DN50~600mm
Applicable media: water, gas, oil, gas and acid and alkali corrosive medium
Applicable temperature: -196~450℃
Driver: manual, pneumatic, electric, etc
Nominal pressure: 1.0~6.4MPa
Nominal size: DN50~600mm设计依据 Design reference GB系列 GB series 设计标准 Design standard GB/T12236 结构长度 Face to face GB/T12221 连接法兰 End flange GB/T9113 HG20592 试验和检验 Test & inspection GB/T 26480 压力等级
Pressure grade试验压力 Test pressure 公称压力 PN
Nominal pressure壳体试验
Sheil test正密封试验
Sealing test反密封试验
Sealing test气密封试验
Air seal test1.6 2.4 1.76 1.76 0.6 2.5 3.75 2.75 2.75 0.6 4.0 6.0 4.4 4.4 0.6 6.3 9.45 6.93 6.93 0.6 PN:1.6 2.5 4.0 PN:6.4 公称通径
DNL
(mm)H
(mm)L
(mm)H
(mm)50 230 135 300 190 65 290 140 340 210 80 310 145 380 220 100 350 165 430 240 125 400 250 500 260 150 480 300 550 310 200 600 315 650 360 250 650 430 775 450 300 750 480 900 500 350 850 500 1025 520 400 950 520 1150 550 450 1050 580 1275 600 500 1150 630 1400 650 600 1350 780 1650 700
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