GB gate valve

Model: Z41H
Nominal diameter: DN50 ~ 1200mm
Nominal pressure: PN10 ~ 160MPa
Working temperature: -29 ℃ ~ + 600 ℃
Main material: carbon steel, stainless steel, alloy
Design and manufacture: GB12234
Structural length: GB12221
Flange Dimensions: GB9113 JB79
pressure temperature: GB9131
Test test: GB / T13927, JB / T9092

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產品詳細

First, the national standard gate valve introduction

Purpose and Features Gate valve is one of the most common opening and closing valve, the use of the gate up and down work to connect (fully open) and cut off (fully closed) in the pipeline fluid medium.
1, the fluid resistance is small, the sealing surface by the media erosion and erosion of small (gate opening height high).
2, open a more powerful, good sealing performance, the flow of media is not restricted, not spoiler, not down pressure.
3, the shape is simple, manufacturing technology is good, a wide range of applications.

Pressure test

Nominal pressure	1.6	2.5	4.0	6.4	10.0	16.0
Strength test	2.4	3.8	6.0	9.6	15.0	24.0
Water seal test	1.8	2.8	4.4	7.0	11.0	18.0
Seal test	1.8	2.8	4.4	7.04	11.0	18.0
Gas seal test	0.4-0.7

Second, the main components of GB valve material and performance

Body cover	Valve stem	Sealing surface	Gasket	filler	Operating temperature ℃	Suitable media
WCB	2Cr13	13CrSTL Body Material Nylon	Reinforced flexible graphite 1Cr13 /flexible graphite 08 mild steel 0Cr18Ni9Ti0Cr17Ni12 Mo2TiXD550F (T) PTFE	Flexible Graphite Reinforced Flexible Graphite SFB /260SFP /260PTFE	≤425	Water, steam, oil
WC1	38CrMoA125Cr2MoV				≤450
WC6					≤540
WC9					≤570
ZGCr5Mo					≤540
ZG1Cr18Ni9Ti	1Cr18Ni9Ti				≤200	Sales acid
ZG1Cr18Ni12Mo2Ti	1C18Ni12Mo2Ti				≤200	Acetic acid

Third, the main gate size GB

PN1.6MPa specifications of the main dimensions

1.6MPa	DN	L	d	D1	D2	b	n-Φd	H	D0
Planar method RF Z40H Z40Y Z40W Z40F Z40NZ41H Z41Y Z41F Z41N16C 16P 16R 16I	15	130	95	65	45	14	4-Φ14	170	120
	20	150	105	75	55	14	4-Φ14	190	140
	25	160	115	85	65	14	4-Φ14	205	160
	32	180	135	100	78	16	4-Φ18	270	180
	40	200	145	110	85	16	4-Φ18	310	200
	50	250	160	125	100	16	4-Φ18	358	240
	65	265	180	145	120	18	4-Φ18	373	240
	80	280	195	160	135	20	8-Φ18	435	280
	100	300	25	180	155	20	8-Φ18	500	300
	125	325	245	210	185	22	8-Φ18	614	320
	150	350	280	240	210	24	8-Φ23	674	320
	200	400	335	295	265	26	12-Φ23	818	400
	250	450	405	355	320	30	12-Φ25	969	450
	300	500	460	410	375	30	12-Φ25	1145	500
	350	550	520	470	435	34	16-Φ25	1280	500
	400	600	580	525	485	36	16-Φ30	14852	560
	450	650	640	585	545	40	20-Φ30	1541	600
	500	700	705	650	608	44	20-Φ34	1676	640
	600	800	840	770	718	48	20-Φ41	1874	720
	700	900	910	840	788	50	24-Φ41	2083	800
	800	1000	1020	950	898	52	24-Φ41	2400	950
	900	1100	1120	1050	998	64	28-Φ41	2950	1000
	1000	1200	1255	1170	1110	56	28-Φ48	3245	1000

PN2.5MPa specifications of the main dimensions

2.5MPa	DN	L	D	D1	D2	b	n-Φd	H	DO
Planar method RF Z40H Z40Y Z40W Z40F Z40NZ41H Z41Y Z41F Z41N25C 25P 25R 25I	15	130	95	65	45	16	4-Φ14	172	120
	20	150	105	75	55	16	4-Φ14	191	140
	25	160	115	85	65	16	4-Φ14	205	160
	32	180	135	100	78	18	4-Φ18	270	180
	40	200	145	110	85	18	4-Φ18	300	200
	50	250	160	125	100	20	4-Φ18	357	240
	65	265	180	145	120	22	8-Φ18	376	240
	80	280	195	160	135	22	8-Φ18	434	280
	100	300	230	190	160	24	8-Φ23	502	300
	125	325	270	220	188	28	8-Φ25	613	320
	150	350	300	250	218	30	8-Φ25	675	320
	200	400	360	310	278	34	12-Φ25	819	400
	250	450	425	370	332	36	12-Φ30	968	450
	300	500	485	430	390	40	16-Φ30	1144	500
	350	550	550	490	448	44	16-Φ34	1280	500
	400	600	610	550	505	48	16-Φ34	1451	560
	450	650	660	600	555	50	20-Φ34	1542	600
	500	700	730	660	510	52	20-Φ41	1678	640
	600	800	840	770	718	56	20-Φ41	1875	720
	700	900	955	875	815	60	24-Φ28	2082	800
	800	1000	1070	990	930	64	24-Φ28	2403	950
	900	1100	1180	1090	1025	66	28-Φ54	2952	1000
	1000	1200	1305	1210	1140	68	28-Φ58	3244	1000

PN4.0MPa ~ 6.4 MPa Specifications The main dimensions

4.0MPa	DN	L	D	D1	D2	D6	b	n-Φd	H	D0
Concave method MFM Z40H Z40Y Z40W Z40F Z40NZ41H Z41Y Z41F Z41N40 40P 40R 40I	15	130	95	65	45	40	16	4-Φ14	134	120
	20	150	105	75	55	51	16	4-Φ14	188	140
	25	160	115	85	64	58	16	4-Φ14	206	140
	32	180	135	100	78	66	18	4-Φ18	272	180
	40	200	145	110	85	76	18	4-Φ18	322	180
	50	250	160	125	100	88	20	4-Φ18	370	240
	65	280	180	145	120	110	22	8-Φ18	394	280
	80	310	195	160	135	121	22	8-Φ18	455	300
	100	350	230	190	160	150	24	8-Φ23	550	320
	125	400	270	220	188	176	28	8-Φ25	636	35
	150	450	300	250	218	204	30	8-Φ30	706	400
	200	550	375	320	282	260	38	12-Φ34	859	450
	250	650	445	385	345	313	42	12-Φ34	1016	560
	300	750	510	450	408	364	46	16-Φ34	1200	640
	350	850	570	510	465	422	52	16-Φ41	1340	640
	400	950	655	585	535	474	58	16-Φ41	1495	720
	450	1050	680	610	560	524	60	20-Φ48	1581	800
	500	1150	755	670	612	576	62	20-Φ54	1790	950
	600	1350	890	695	730	678	62	20-Φ14	2035	950
6.4MPa	15	1700	105	75	55	40	18	4-Φ18	1425	160
Concave method MFM Z40H Z40Y Z40W Z40F Z40NZ41H Z41Y Z41F Z41N64 64P 64R 64I	20	190	125	90	68	51	20	4-Φ18	142	160
	25	210	135	100	78	58	22	4-Φ23	214	200
	32	230	150	110	82	66	24	4-Φ23	269	200
	40	240	165	125	95	76	24	4-Φ23	343	240
	50	250	175	135	105	88	26	4-Φ23	370	240
	65	280	200	160	130	110	28	8-Φ23	396	280
	80	310	210	170	140	121	30	8-Φ23	458	300
	100	350	250	200	168	150	32	8-Φ25	553	300
	125	400	295	240	202	176	36	8-Φ30	638	350
	150	450	340	280	240	204	38	8-Φ34	718	400
	200	550	405	345	300	260	44	12-Φ34	873	450
	250	650	470	400	352	313	48	12-Φ41	1050	560
	300	750	530	460	412	364	54	16-Φ41	1203	640
	350	850	595	525	475	422	60	16-Φ41	1394	720
	400	950	670	585	525	474	66	16-Φ48	1645	800
	500	1150	800	705	640	576	70	20-Φ54	2285	950
	600	1350	930	820	750	678	70	20-Φ58	2610	950

PN10.0MPa ~ 16.0MPa (Specification main dimensions)

10.0MPa	DN	L	D	D1	D6	b	b-Φd	H	D0
Concave method MFM Z40H Z40Y Z40WZ41H Z41Y Z41W100 100P 100R 100I	15	170	105	75	40	20	4-Φ14	175	160
	20	190	125	90	51	22	4-Φ18	180	160
	25	210	135	100	58	24	4-Φ18	310	180
	32	230	150	110	66	24	4-Φ23	320	200
	40	240	165	125	76	26	4-Φ23	360	200
	50	250	195	145	88	28	4-Φ25	490	240
	65	280	220	170	110	32	8-Φ25	540	240
	80	310	230	180	121	34	8-Φ25	573	280
	100	350	265	210	150	38	8-Φ30	575	320
	125	400	310	250	176	42	8-Φ34	744	360
	150	450	350	290	204	46	12-Φ34	800	400
	200	500	430	360	260	54	12-Φ41	800	500
	250	650	500	430	313	60	12-Φ41	1050	640
	300	750	585	500	364	70	16-Φ48	1208	720
	350	850	655	560	422	76	16-Φ54	1410	720
	400	950	715	620	474	80	16-Φ54	1655	800
16.0MPa	15	170	110	75	40	24	4-Φ18	230	160
Concave method MFM Z40H Z40Y Z40WZ41H Z41Y Z41W160 160P 160R 160I	20	190	130	90	51	26	4-Φ23	260	180
	25	210	140	100	58	28	4-Φ23	280	200
	32	2310	165	115	66	30	4-Φ25	312	200
	40	240	175	125	76	32	4-Φ27	350	240
	50	300	210	165	88	36	8-Φ25	412	280
	65	340	245	190	110	44	8-Φ30	560	320
	80	390	260	205	121	46	8-Φ30	585	3.50
	100	450	300	240	150	48	8-Φ34	630	400
	125	525	355	285	176	60	8-Φ41	723	500
	150	600	390	318	204	66	12-Φ41	820	560
	200	750	480	400	260	78	12-Φ8	990	720
	250	850	580	485	313	88	12-Φ54	1104	800
	300	950	665	570	364	100	16-Φ54	1314	800

Previous： American standard large-diameter gate valve

Next： American Standard Gate Valve

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GB gate valve

GB gate valve

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