标准配置为机加工黄铜结构,镀铬镍阀体,乙丙橡胶止回阀瓣总成和丁钠橡胶密封,不锈钢弹簧和压力板。

• Machined brass construction, chrome nickel plated body, EPR rubber check disc assemblies and Buna 'N' seals, stainless steel springs and pressure plates are standard.