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First, the national standard globe valve introduction

GB globe valve is a mandatory sealed valve, so the valve is closed, the pressure must be applied to the valve to force the sealing surface does not leak. When the medium from below the valve into the valve, the operating force needed to overcome the resistance is the valve stem and packing friction and the thrust generated by the media pressure, off the valve force than the valve open, so the valve stem The diameter should be larger, otherwise it will happen valve stem bend. In recent years, from the self-sealing valve appears, the flange of the media cut off the valve to change from the top of the valve into the valve chamber, then under medium pressure, the valve closing force is small, and open the valve force, valve The diameter of the rod can be reduced accordingly. At the same time, in the medium, this form of stainless steel pneumatic valve is also more stringent.

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	7.4	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, manual globe valve parts and materials performance

Body cover pull	Valve stem	Sealing surface	Gasket (ring)	filler	Operating temperature ℃	Suitable media
WCB	2Cr13	13Cr STL Body Material Nylon	Reinforced flexible graphite 1Crl3 / flexible graphite 08 mild steel 0Cr18Ni9Ti OCr18Ni12Mo2Ti	Flexible graphite reinforced flexible graphite SFB-260 SFP-260	≤425	Water, steam, oil
WC1	38CrMoAI 25Cr2MoV				≤450
WC6					≤540
WC9					≤570
ZGCr5Mo					≤540
ZG1Cr18Ni9Ti	1Cr18Ni9Ti				≤200	Nitric acids
ZGCr18Ni12Mo2Ti	1C18Ni12Mo2Ti				≤200	Acetic acid

Third, the main shape and connection dimensions

DN	The main dimensions and connection dimensions
DN	L	D	D1	D2	b	f	Zd	H	D0
J41H / Y-16C J41W-16P J41W-16R J41Y-16I
10	130	90	60	40	14	2	4-14	198	120
15	130	95	65	45	16	2	4-14	218	120
20	150	105	75	55	16	2	4-14	258	140
25	160	115	85	65	16	2	4-14	275	160
32	180	135	100	78	18	2	4-18	280	180
40	200	145	110	85	18	3	4-18	330	200
50	230	160	125	100	18	3	4-18	350	240
65	290	180	145	120	18	3	4-18	355	280
80	310	195	160	135	20	3	8-18	400	280
100	350	215	180	155	22	3	8-18	415	320
125	400	245	210	185	24	3	8-23	460	360
150	480	280	240	210	24	3	12-23	510	400
200	600	335	295	265	26	3	12-23	710	400
250	650	405	355	320	30	3	12-23	786	450
300	750	460	410	375	30	3	12-23	925	500

DN	The main dimensions and connection dimensions
DN	L	D	D1	D2	b	f	Zd	H hand	H electricity	D	Electric device
J41H / Y-25 J41W-25P J41W-25R J41Y-25I J941H / Y-25 J941W-25P J941W-25R J941W-25I
10	130	90	60	40	16	2	4-14	198	-	120	-
15	130	95	65	45	16	2	4-14	218	-	120	-
20	150	105	75	55	16	2	4-14	258	-	140	-
25	160	115	85	65	16	2	4-14	275	-	160	-
32	180	135	100	78	18	2	4-18	280	-	180	-
40	200	145	110	85	18	3	4-18	330	-	200	-
50	230	160	125	100	20	3	4-18	350	645	240	DZW10
65	290	180	145	120	22	3	8-18	400	690	280	DZW10
80	310	195	160	135	22	3	8-18	355	715	280	DZW15
100	350	230	190	160	24	3	8-23	415	770	320	DZW20
125	400	270	220	188	28	3	8-25	460	780	360	DZW30
150	480	300	250	218	30	3	8-25	510	875	400	DZW45
200	600	360	310	278	34	3	12-25	710	967	400	DZW60
250	650	425	370	332	36	3	12-30	786	-	450	-
300	750	485	430	390	40	4	12-30	925	-	500	-

DN	The main dimensions and connection dimensions
DN	L	D	D1	D2	D6	b	f	f2	Zd	H hand	H electricity	D	Electric device
J41H / Y-40 J41W-40P J41W-40R J41Y-40I J941H / Y-40 J941W-40P J941W-40R J941W-40I
10	130	90	60	40	35	16	2	2	4-14	198	-	120	-
15	130	95	65	45	40	16	2	4	4-14	233	-	120	-
20	150	105	75	55	51	16	2	4	4-14	275	-	140	-
25	160	115	85	65	58	16	2	4	4-14	285	-	160	-
32	180	135	100	78	66	18	2	4	4-18	302	-	180	-
40	200	145	110	85	76	18	3	4	4-18	355	-	200	-
50	230	160	125	100	88	20	3	4	4-18	373	645	240	DZW10
65	290	180	145	120	110	22	3	4	4-18	408	690	280	DZW10
80	310	195	160	135	121	22	3	4	8-18	436	715	320	DZW20
100	350	230	190	160	150	24	3	4.5	8-18	480	770	360	DZW30
125	400	270	220	188	176	28	3	4.5	8-23	558	782	400	DZW45
150	480	300	250	218	204	30	3	4.5	8-25	611	875	400	DZW60
200	600	375	320	282	260	38	3	4.5	12-30	720	1160	400	DZW90

DN	The main dimensions and connection dimensions
DN	L	D	D1	D2	D6	b	Zd	H	H1	D0
J41H / Y-64 J941H / Y-64 J41Y-64I J941Y-64I
15	170	105	75	55	41	18	414	195	210	140
20	190	125	90	68	51	20	418	228	248	160
25	210	135	100	78	58	22	418	250	275	180
32	230	150	110	82	66	24	423	325	355	200
40	260	165	125	95	76	24	423	360	395	240
50	300	175	135	105	88	26	423	410	450	280
65	340	200	160	130	110	28	823	450	494	320
80	380	210	170	140	121	30	823	485	485	360
100	430	250	200	168	150	32	825	537	537	400
150	550	340	280	240	204	38	834	646	646	450
200	650	405	345	300	-	44	1234	813	813	500
J41H / Y-100 J941H / Y-100 J41Y-100I J941Y-100I
15	170	105	75	55	40	20	414	195	210	100
20	190	125	90	68	51	22	418	228	248	120
25	210	135	100	78	58	24	418	250	275	160
32	230	150	110	82	66	24	423	326	348	200
40	260	165	125	95	76	26	423	359	388	240
50	300	195	145	112	88	28	425	414	448	280
65	340	220	170	138	110	32	825	434	477	320
80	380	230	180	148	121	34	825	547	598	400
100	430	265	210	172	150	38	830	621	685	450
125	500	310	250	210	176	42	834	-	-	-
150	550	350,	290	250	204	46	1234	840	-	-
200	650	430	360	312	260	54	1241	925	-	-

The next：American Standard Cast Steel Globe Valves

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