推荐回答（2个）
DESIGN:
1. The valve shall be constructed with a two-piece body rated for 150 or 300 psi and with end flanges in full conformance with ANSI B16.1 Class 125 or Class 250. The main body section and end piece shall contain integrally cast support feet and lifting lugs.
此阀门应为两片式结构，适应压力150或300psi。端法兰必须完全满足ANSI B16.1标准中class 125或250LB的尺寸要求。支撑脚和吊耳必须与阀体和连接体整体铸在一起。
不好意思，剩余的晚点翻。
设计：
1。该阀应建造与150或300 psi和终法兰在额定一两件完整的身体
与ANSI B16.1一致性或类250类125个。主体部分和最后一块应包含
整体现浇支撑脚和起重耳。
2。该阀口应为100％，等于明确口径阀门大小的名义在不流动的座位硬件
流时完全打开。球须为自动冲洗时，污水服务的中间立场。
3。双人（或单）应提供弹性席位落紧服务，并须位于球和机械
保留有不锈钢护环，不锈钢螺丝帽尼洛克，并应通过
无论是弹性的座椅和扣环。护环将持续或投资与投
重叠的部分，锯齿沟槽和肩膀。该弹性席位，将进行现场调节，可更换
不删除从管道和队友连续体316不锈钢阀座阀门。
4。阀轴应插入到球盲枢纽和上锁，以保留球锥销
不锈钢螺栓堵塞。应密封，轴与孔弹性体密封砂砾。
5。聚四氟乙烯衬里，玻璃纤维支持的套筒轴承，须在身体中心位置。
6。此外，可调整的推力轴承应提供给中心的球在体内。
7。轴密封条，V型和不得从行或拆除更换的阀门
轴从阀门。
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