锻钢焊接式闸阀锻钢焊接式闸阀

锻钢焊接式闸阀概述：
　　 锻钢闸阀有三种阀盖设计形式。*种是螺栓式阀盖，按这种设计形式设计的阀门，其阀体与阀盖用螺栓螺母连接，缠绕式垫片 (316夹柔性石墨制造)密封。客户有特殊要求时也可采用金属环连接。第二种设计形式是焊接式阀盖，按这种设计形式的阀门，其阀体与阀盖用螺纹连接，全焊密封。

锻钢焊接式闸阀概述：
　　 锻钢闸阀有三种阀盖设计形式。*种是螺栓式阀盖，按这种设计形式设计的阀门，其阀体与阀盖用螺栓螺母连接，缠绕式垫片 (316夹柔性石墨制造)密封。客户有特殊要求时也可采用金属环连接。第二种设计形式是焊接式阀盖，按这种设计形式的阀门，其阀体与阀盖用螺纹连接，全焊密封。客户有特殊要求时也可采用全焊逶连接。第三种是压力自紧式阀盖，按这种设计形式设计的阀门，其阀体与阀盖用螺纹连接，内压自密封环密封。

锻钢焊接式闸阀结构与特征 ：
闸阀的设计与 APl602，BS5352和ASME B16.34。检验与测试按APl598，标记按MSS-SP-25。

零部件材料表：

序号NO．	零件名称	CS to ASTM	AS to ASTM	SS to ASTM
	Part Name	TypeAl05	TypeF22	TypeF304(L)	TypeF316(L)
l	阀体	A105	A182F22	A1 82 F304(L)	A182 F316(L)
2	阀座	A276420	A276304	A276 304(L)	A276 316(L)
3	闸板	A276 430&410	A182F304	A182 F304(L)	A182 F316(L)
4	阀杆	A182 F6	A182F304	A182 F304(L)	A182 F316m、
5	垫片	316夹柔性石墨		316夹SS+PTFE
6	阀盖	A105	A182F22	A182 F304(L)	A182 F316(L)
7	阀盖螺栓	A19387	A193816	A19388	A19388M
8	圆柱销	A276420		A182 F304
9	填料压套	A276410		A182 F304(L)	A182 F316(L)
10	活节螺栓	A19387	A193816	A19388	A19388M
11	填料压板	A105	A182F11	A182 F304(L)	A182 F316(L)
12	螺母	A1942H	A1944	A1948	A194 8M
13	阀杆螺母	A276420
14	锁紧螺母	A1942H	A1944	A1948	A1948M
15	铭牌	SS
16	手轮	A197
17	润滑垫片	A473 431

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