水用电磁阀,截止阀,放料阀,切断阀,蝶阀

H41Y-25I-DN15,H41Y-25I-DN20,H41Y-25I-DN25,H41Y-25I-DN32,H41Y-25I-DN40,H41Y-25I-DN50,H41Y-25I-DN65,H41Y-25I-DN80,H41Y-25I-DN100,H41Y-25I-DN125,H41Y-25I-DN150,H41Y-25I-DN200,H41Y-40I-DN15,H41Y-40I-DN20,H41Y-40I-DN25,

H41Y-40I-DN32,H41Y-40I-DN40,H41Y-40I-DN50,H41Y-40I-DN65,H41Y-40I-DN80,H41Y-40I-DN100,H41Y-40I-DN125,H41Y-40I-DN150,H41Y-40I-DN200,H41Y-64I-DN15,

H41Y-64I-DN20,H41Y-64I-DN25,H41Y-64I-DN32,H41Y-64I-DN40,H41Y-64I-DN50,H41Y-64I-DN65,H41Y-64I-DN80,H41Y-64I-DN100,H41Y-64I-DN125,H41Y-64I-DN150,

H41Y-64I-DN200,H41Y-100I-DN15,H41Y-100I-DN20,H41Y-100I-DN25,H41Y-100I-DN32,H41Y-100I-DN40,H41Y-100I-DN50,H41Y-100I-DN65,H41Y-100I-DN80,H41Y-100I-DN100,

H41Y-100I-DN125,H41Y-100I-DN150,H41Y-100I-DN200,H41Y-25P-DN15,H41Y-25P-DN20,H41Y-25P-DN25,H41Y-25P-DN32,H41Y-25P-DN40,H41Y-25P-DN50,H41Y-25P-DN65,

H41Y-25P-DN80,H41Y-25P-DN100,H41Y-25P-DN125,H41Y-25P-DN150,H41Y-25P-DN200,H41Y-40P-DN15,H41Y-40P-DN20,H41Y-40P-DN25,H41Y-40P-DN32,H41Y-40P-DN40,

H41Y-40P-DN50,H41Y-40P-DN65,H41Y-40P-DN80,H41Y-40P-DN100,H41Y-40P-DN125,H41Y-40P-DN150,H41Y-40P-DN200,H41Y-64P-DN15,H41Y-64P-DN20,H41Y-64P-DN25,

H41Y-64P-DN32,H41Y-64P-DN40,H41Y-64P-DN50,H41Y-64P-DN65,H41Y-64P-DN80,H41Y-64P-DN100,H41Y-64P-DN125,H41Y-64P-DN150,H41Y-64P-DN200,H41Y-100P-DN15,

H41Y-100P-DN20,H41Y-100P-DN25,H41Y-100P-DN32,H41Y-100P-DN40,H41Y-100P-DN50,H41Y-100P-DN65,H41Y-100P-DN80,H41Y-100P-DN100,H41Y-100P-DN125,

H41Y-100P-DN150,H41Y-100P-DN200,高温高压止回阀

止回阀：止回阀又称单向阀或逆止阀，其作用是防止管路中的介质倒流。水泵吸水关的底阀也属于止回阀类。

启闭件靠介质流动和力量自行开启或关闭，以防止介质倒流的阀门叫止回阀。止回阀属于自动阀类，主要用于介质单向流动的管道上，只允许介质向一个方向流动，以防止发生事故。

止回阀按结构划分，可分为升降式止回阀、旋启式止回阀和蝶式止回阀三种。升降式止回阀可分为立式和卧式两种。旋启式止回阀分为单瓣式、双瓣式和多瓣式三种。蝶式止回阀为直通式、以上几种止回阀在连接形式上可分为螺纹连接、法兰连接和焊接三种。

型号	公称压力PN(Mpa)	试验压力Ps(Mpa)			适用温度(oc)	适用介质
		密度	气密封	壳体
H41Y-25I	2.5	2.75	0.6	3.75	≤550	蒸汽、水、油品等
H41Y-40I	4.0	4.4	0.6	6.0
H41Y-64I	6.4	7.04	0.6	9.6
H41Y-100I	10.0	11.0	0.6	15.0
H41Y-25P	2.5	2.75	0.6	3.75	≤150	弱腐蚀性介质
H41Y-40P	4.0	4.4	0.6	6.0
H41Y-64P	6.4	7.04	0.6	9.6
H41Y-100P	10.0	11.0	0.6	15.0

主要零件材料

零件		阀门、阀盖、阀瓣	阀体、阀瓣密封面	垫片	螺栓
材料	I	铬钼钢	硬质合金	钢带石棉缠绕式垫片	铬钼钒钢
	P	铬钼钛不锈钢	硬质合金	聚四氟乙烯	不锈钢

主要尺寸及重量

公称通径DN（mm）	尺寸(mm)									重量(kg)
	L	D	D1	D2	·b	f	Z –φd	H	D3
15	130	95	65	45	16	2	4-φ14	100	-	5
20	150	105	75	55	16	2	4 –φ14	105	-	7
25	160	115	85	65	16	2	4 –φ14	115	110	9
32	190	135	100	78	18	2	4 –φ18	120	120	10
40	200	145	110	85	18	3	4-φ18	140	135	15
50	230	160	125	100	20	3	4-φ18	150	150	20
65	290	180	145	120	22	3	8-φ18	160	175	25
80	310	195	160	135	22	3	8-φ18	175	200	32
100	350	230	190	160	24	3	8-φ23	200	230	57
125	400	270	220	188	28	3	8-φ25	230	273	-
150	480	300	250	218	30	3	8-φ25	265	330	-
200	600	360	310	278	34	3	12-φ25	300	365	-