Flanged Wedge Gate Valve

The Z41H medium‑pressure flanged gate valve is a manually operated, rising‑stem valve designed for reliable on‑off isolation in water, steam, oil, and general industrial pipelines. Built to JB/T standards with a solid wedge disc and hard‑faced seats, it delivers tight shutoff, low flow resistance, and long service life. Available in DN15–DN1000 and PN16–PN100, with options for carbon steel, stainless steel, and alloy steel bodies.

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Product Details

Main external and connection dimension

Nominal Pressure PN (MPa)	Nominal Diameter DN (mm)	L	D	D1	D2	b-f	Z-Φd	H	D0	Weight (kg)
1.0	15	130	95	65	45	12-2	4-Φ14	160	100	/
1.0	20	150	105	75	55	14-2	4-Φ14	165	100	/
1.0	25	160	115	85	65	14-2	4-Φ14	200	125	/
1.0	32	180	135	100	78	16-2	4-Φ18	240	125	/
1.0	40	165	145	110	85	16-3	4-Φ18	245	135	/
1.0	50	180	160	125	100	16-3	4-Φ18	286	180	/
1.0	65	195	180	145	120	18-3	4-Φ18	320	180	/
1.0	80	210	195	160	135	18-3	8-Φ18	373	200	/
1.0	100	230	215	180	155	20-3	8-Φ18	428	200	/
1.0	125	255	245	210	185	22-3	8-Φ23	513	240	/
1.0	150	280	280	240	210	22-3	8-Φ23	582	240	/
1.0	200	330	335	295	265	22-3	12-Φ23	730	320	/
1.0	250	380	390	350	320	24-3	12-Φ23	897	320	/
1.0	300	420	440	400	368	26-4	16-Φ23	1032	400	/
1.0	350	450	500	460	428	26-4	16-Φ25	1170	400	/
1.0	400	480	565	515	482	26-4	16-Φ25	1330	500	/
1.0	450	510	615	565	532	26-4	20-Φ25	1460	500	/
1.0	500	540	670	620	585	28-4	20-Φ25	1650	500	/
1.0	600	600	780	725	685	28-5	20-Φ30	183	600	/
1.0	700	660	895	840	800	30-5	24-Φ30	2120	700	/
1.0	800	730	1010	950	905	32-5	24-Φ34	2420	800	/
1.0	900	800	1110	1050	1005	34-5	28-Φ34	2750	850	/
1.0	1000	850	1220	1160	1115	34-5	28-Φ34	3130	900	/
1.6	15	130	95	65	45	14-2	4-Φ14	170	120	/
1.6	20	150	105	75	55	14-2	4-Φ14	190	140	/
1.6	25	160	115	85	65	16-2	4-Φ14	205	160	/
1.6	32	180	135	100	78	16-2	4-Φ18	270	180	/
1.6	40	200	145	110	85	16-3	4-Φ18	290	200	/
1.6	50	250	160	125	100	16-3	4-Φ18	310	240	/
1.6	65	265	180	145	120	18-3	4-Φ18	373	240	/
1.6	80	280	195	160	135	20-3	8-Φ18	435	280	/
1.6	100	300	215	180	155	20-3	8-Φ18	445	300	/
1.6	125	325	245	210	185	22-3	8-Φ23	570	320	/
1.6	150	350	280	240	210	24-3	8-Φ23	630	360	/
1.6	200	400	335	295	265	26-3	12-Φ23	735	400	/
1.6	250	450	405	355	320	30-3	12-Φ25	969	450	/
1.6	300	500	460	410	375	30-4	12-Φ25	976	580	/
1.6	350	550	520	470	435	34-4	16-Φ25	1120	640	/
1.6	400	600	580	525	485	36-4	16-Φ30	1452	640	/
1.6	450	650	640	585	545	40-4	20-Φ30	1541	720	/
1.6	500	700	705	650	608	44-4	20-Φ34	1880	720	/
1.6	600	800	840	770	718	48-5	20-Φ41	1874	800	/
1.6	700	900	910	840	788	50-5	24-Φ41	2083	800	/
1.6	800	1000	1020	950	898	52-5	24-Φ41	2400	850	/
1.6	900	1100	1120	1050	998	54-5	28-Φ41	2950	1000	/
1.6	1000	1200	1255	1170	1110	56-5	28-Φ48	3245	1000	/

Main External and Connection Dimensions

Standard: JB/T 79.1-1994 Dimensions in mm

PN (MPa)	DN (mm)	L	D	D1	D2	b-f	Z-Φd	H	D0	Weight (kg)
2.5	15	130	95	65	45	16-2	4-Φ14	170	120	/
2.5	20	150	105	75	55	16-2	4-Φ14	190	140	/
2.5	25	160	115	85	65	16-2	4-Φ14	205	160	/
2.5	32	180	135	100	78	16-2	4-Φ18	270	180	/
2.5	40	200	145	110	85	16-3	4-Φ18	310	200	/
2.5	50	250	160	125	100	20-3	4-Φ18	358	240	/
2.5	65	280	180	145	120	22-3	8-Φ18	435	280	/
2.5	80	300	195	160	135	22-3	8-Φ18	500	300	/
2.5	100	350	230	190	160	24-3	8-Φ23	614	320	/
2.5	125	400	270	220	188	28-3	8-Φ25	674	360	/
2.5	150	450	300	250	218	30-3	8-Φ25	811	400	/
2.5	200	500	360	310	278	34-3	12-Φ25	969	450	/
2.5	250	550	425	370	332	36-3	16-Φ30	1155	580	/
2.5	300	600	485	430	390	40-4	16-Φ34	1280	640	/
2.5	400	650	610	550	505	48-4	16-Φ34	1452	640	/
2.5	450	700	660	600	555	50-4	20-Φ34	1541	720	/
2.5	500	800	730	660	610	52-4	20-Φ41	1676	720	/
2.5	600	900	840	770	718	56-5	20-Φ41	1874	800	/
2.5	700	1000	955	875	815	60-5	24-Φ48	2083	800	/
2.5	800	1100	1070	990	930	64-5	24-Φ48	2400	950	/
2.5	900	1200	1180	1090	1025	66-5	28-Φ54	2950	1000	/
2.5	1000	1200	1305	1210	1140	68-5	28-Φ58	3245	1000	/

Main External and Connection Dimensions

Standard: JB/T 79.2-1994 Dimensions in mm

PN (MPa)	DN (mm)	L	D	D1	D2	D6	b-f	f1	Z-Φd	H	D0	Weight (kg)
4.0	15	130	95	65	45	40	16-2	4	4-14	135	120	/
4.0	20	150	105	75	55	51	16-2	4	4-14	190	140	/
4.0	25	160	115	85	65	58	16-2	4	4-14	205	160	/
4.0	32	180	135	100	78	66	16-2	4	4-18	270	180	/
4.0	40	200	145	110	85	76	16-3	4	4-18	310	200	/
4.0	50	250	160	125	100	88	20-3	4	4-18	371	280	/
4.0	65	280	180	145	120	110	22-3	4	8-18	391	280	/
4.0	80	310	195	160	135	121	22-3	4	8-18	455	320	/
4.0	100	350	230	190	160	150	24-3	4.5	8-23	551	360	/
4.0	125	400	270	220	188	176	28-3	4.5	8-25	628	400	/
4.0	150	450	300	250	218	204	30-3	4.5	8-25	708	400	/
4.0	200	550	375	320	282	260	38-3	4.5	12-30	885	450	/
4.0	250	650	445	385	345	313	42-3	4.5	12-34	906	560	/
4.0	300	750	510	450	408	364	46-4	4.5	16-34	1203	640	/
4.0	350	850	570	510	465	422	52-4	5	16-34	1341	640	/
4.0	400	950	655	585	535	474	58-4	5	16-41	1492	720	/
4.0	500	1150	755	670	612	576	62-4	5	20-48	1627	/	/
4.0	600	1350	890	795	730	678	62-5	6	20-54	1925	/	/
4.0	700	1450	995	900	835	768	68-5	6	24-54	2310	/	/
4.0	800	1650	1135	1030	960	876	76-5	6	24-58	2600	/	/
6.3	15	170	105	75	55	40	18-2	4	4-14	140	100	/
6.3	20	190	125	90	68	51	20-2	4	4-18	140	100	/
6.3	25	210	135	100	78	58	22-2	4	4-18	215	180	/
6.3	32	230	150	110	82	66	24-2	4	4-23	270	180	/
6.3	40	240	165	125	95	76	24-3	4	4-23	345	200	/
6.3	50	250	175	135	105	88	26-3	4	4-23	470	200	/
6.3	65	280	200	160	130	110	28-3	4.5	8-23	520	250	/
6.3	80	310	210	170	140	121	30-3	4.5	8-23	570	300	/
6.3	100	350	250	200	168	150	32-3	4.5	8-25	700	300	/
6.3	125	400	295	240	202	176	36-3	4.5	8-30	780	350	/
6.3	150	450	340	280	240	204	38-3	4.5	8-34	850	350	/
6.3	200	550	405	345	300	260	44-3	4.5	12-34	1035	400	/
6.3	250	650	470	400	352	313	48-3	4.5	12-41	1050	560	/
6.3	300	750	530	460	412	364	54-4	4.5	16-41	1470	640	/
6.3	350	850	595	525	475	422	60-4	5	16-41	1718	700	/
6.3	400	950	670	585	525	474	66-4	5	16-48	1885	750	/
6.3	500	1150	800	705	640	576	70-4	5	20-54	2410	850	/
6.3	600	1350	930	820	750	678	76-5	6	20-58	2895	1000	/