- 产品品牌：
- 加拿大威廉姆森
- 产品型号：
- Check Valve
- 种类：
- DDCV双瓣式
- 材质：
- 不锈钢
- 连接形式：
- 法兰
- 结构形式：
- 升降式
- 适用介质：
- 水
- 形态：
- 柱塞式
- 压力环境：
- 常压
- 标准：
- 英标
- 流动方向：
- 单向
- 驱动方式：
- 手动
- 工作温度：
- 常温
- 类型(通道位置)：
- 直通式
| 产品名称：Check Valve 产品型号： |
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●Standards Design and Manufacture: Cast steel check valve to BS 1868, ASME B16.34 and API 6D; Forged steel check valve to API 602. ●The Features of check Valve Bolted Bonnet; Swing and lift disc; Metallic seating surfaces. ●Body and Bonnet Connection The body and bonnet of Class 150～Class 900 check valves are usually with studs and nuts. And the body and bonnet of Class 1500～Class 2500 check valves are usually of pressurized seal design. ●Body-To-Bonnet Joint Stainless steel＋flexible graphite wounded gasket is used for Class 150 and Class 300 check valve; Stainless steel＋flexible graphite wounded gasket is used for Class 600 check valve, and joint gasket is also optional for Class 600 check valve; Ring Joint gasket is used for Class 900 check valve; Pressurized seal design is used for Class 1500～Class 2500 check valve.
For carbon steel check valve, the seat is usually forged steel. The sealing surface of the seat is spray welded with hard alloy specified by the customer. Renewable threaded seat is used for NPS≤10 check valves, and welded on seat can be also optional if being requested by the customer. Welded on seat is used for NPS≥12 carbon steel check valves. For Stainless steel check valve, integral seat is usually adopted, or to weld hard alloy directly integrally. Threaded or welded on seat is also optional for stainless steel check valve if being requested by the customer.
Design and Manufacture: BS1868 or API 6D
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