有些通径的阀门没有双法兰结构，对于这些通径的阀门，可提供凸耳阀 体结构，请参阅第12页。
Sizes not available in double flange design are offered as lug body design, see page 12.
对阀盘、耳轴活塞杆头的染料渗透剂测试。
Dye-penetrant testing of the disc trunnions and piston rod heads.
清洗：检查或更换磨损的阀门阀瓣，断开控制管线，采用钝工具和锤打阀盖凸耳从阀体上旋下阀盖。
To CLEAN: Inspect or replace worn valve disc, disconnect control pipe and unscrew bonnet from valve body using blunt tool and hammer on bonnet lugs.
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