GTL-DZ41HY Anti-Freeze Cryogenic Gate Valve

Our Anti-Freeze Cryogenic Gate Valves are available in two bonnet designs. The first is the bolted valve cover, according to this design of the valve, the valve body and the cover of the bolt nut connection, wound gasket (316 clip flexible graphite manufacturing). Customers with special requirements can also use metal ring gasket connection. The second design form is a welded valve cover, according to this design form of the valve, the valve body and the valve cover connected by thread, full welding seal. Penetration welding can also be used when customers have special requirements.

DETAILS

Standard
Design and manufacturing	Structure length	Flange dimensions	Pressure-temperature	Testing-inspection
JB/T7749	GB12221	JB79	GB9131	JB/T9092

Materials

Body , Bonnet, Disc	Stem	Sealing surface	Gasket	Packing	Working temperature	Suitable medium
ZGoCrMN VAI Low temperature high pressure cast steel	1Cr7Ni12	STL/STL	1Cr13/Flexible Graphite Asbestos	PTFE，Asbestos Impregnated PTFE Packing，Flexible Graphite	-46	Endoane, preene, methanol/Ethane gas/liquid ammonia
LCB
zGoCrMN Val Low temperature high pressure cast steel					-60
LC1
zGoCrMN VAI Low temperature high pressure cast steel					-73 -101
LC2
ZGoCrMN Val Low temperature high pressure cast steel	1Cr18Ni9 Ti
LC3
ZGoCrMN oYl VAI Low temperature high pressure cast steel					-115
LC4
zGoCrMN VAI Low temperature high pressure cast steel					-196

Dimensions PN1.6MPa-2.5 Mpa

1.6MPa	DN	L	D	D1	D2	b	n-Φd	H	D0
Raised-face flange RF DZ41Y-16LCB DZ41Y-16LC1 DZ41Y-16LC2 DZ41Y-16LC3 DZ41Y-16LC4 DZ41Y-16P DZ41Y-16R	20	150	105	75	55	14	4-Φ14	320	140
	25	160	115	85	65	14	4-Φ14	350	160
	32	180	135	100	78	16	4-Φ18	385	180
	40	200	145	110	85	16	4-Φ18	420	220
	50	250	160	125	100	16	4-Φ18	540	240
	65	265	180	145	120	18	4-Φ18	610	240
	80	280	195	160	135	20	8-Φ18	690	280
	100	300	215	180	155	20	8-Φ18	780	300
	125	325	245	210	185	22	8-Φ18	930	320
	150	350	280	240	210	24	8-Φ23	980	350
	200	400	335	295	265	26	12-Φ26	1180	400
	250	450	105	355	320	30	12-Φ30	1390	450
	300	500	460	410	375	30	12-Φ30	1620	500
	350	550	520	470	435	34	16-Φ34	1810	500
	400	600	580	525	485	36	16-Φ36	1970	550
2.5MPa	20	150	105	75	55	16	4-Φ16	320	140
Raised-face flange RF DZ41Y-25LCB DZ41Y-25LC1 DZ41Y-25LC2 DZ41Y-25LC3 DZ41Y-25LC4 DZ40Y-25P DZ41Y-25R	25	160	115	85	65	16	4-Φ16	350	160
	32	180	135	100	78	18	4-Φ18	385	180
	40	200	145	110	85	18	4-Φ18	420	200
	50	250	160	125	100	20	4-Φ20	540	240
	65	265	180	145	125	22	8-Φ22	510	240
	80	280	195	160	135	22	8-Φ22	690	280
	100	300	230	190	160	24	8-Φ24	780	300
	125	325	270	220	188	28	8-Φ28	930	300
	150	350	300	250	218	30	8-Φ30	980	320
	200	400	360	310	278	34	12-Φ34	1180	360
	250	450	425	370	332	36	12-Φ36	1390	400
	300	500	485	430	390	40	16-Φ40	1620	450
	350	550	550	490	448	44	16-Φ44	1810	500
	400	600	610	550	505	48	16-Φ48	1990	560

PN4.0MPa-10.0MPa

4.0 MPa	DN	L	D	D1	D2	D6	b	n-Φd	H	D0
Female flange MFM DZ41Y-40LCB DZ41Y-40LC1 DZ41Y-40LC2 DZ41Y-40LC3 DZ41Y-40LC4 DZ41Y-40P DZ41Y-40R	20	150	105	75	55	51	16	4-Φ14	330	140
	25	160	115	85	65	58	16	4-Φ14	360	160
	32	180	135	100	78	66	18	4-Φ18	440	180
	40	200	145	110	85	76	18	4-Φ18	455	200
	50	250	160	125	100	88	20	4-Φ18	575	240
	65	380	180	145	120	110	22	4-Φ20	635	240
	80	3103	195	160	135	121	22	8-Φ22	715	280
	100	50	230	190	160	150	24	8-Φ22	815	300
	125	400	270	220	188	176	28	8-Φ24	965	360
	150	450	300	250	218	204	30	8-Φ28	1025	400
	200	550	375	320	282	160	38	8-Φ30	1225	450
	250	650	445	385	345	313	42	12-Φ34	1440	560
	300	750	510	450	408	364	46	16-Φ34	1665	5470
	350	850	570	510	465	422	52	16-Φ41	1880	720
	400	950	655	585	535	474	58	16-Φ18	2050	800
6.4MPa	20	190	125	90	68	51	20	4-Φ18	330	180
Female flange MFM DZ41Y-64LCB DZ41Y-64LC1 DZ41Y-64LC2 DZ41Y-64LC3 DZ41Y-64LC4 DZ41Y-64P DZ41Y-64R	25	210	135	100	78	58	22	4-Φ23	360	180
	32	230	150	110	82	66	24	4-Φ23	410	180
	40	240	165	125	95	76	24	4-Φ23	480	220
	50	250	175	135	105	88	26	4-Φ23	585	240
	65	280	200	160	130	110	28	8-Φ23	690	240
	80	310	210	170	140	121	30	8-Φ23	745	280
	100	350	250	200	168	150	32	8-Φ25	885	300
	125	400	295	240	202	176	36	8-Φ30	985	360
	150	450	340	280	240	204	38	8-Φ34	1050	400
	200	550	405	345	300	260	44	12-Φ34	1240	450
	250	650	470	400	352	313	48	12-Φ41	1460	560
	300	750	530	160	412	364	54	16-Φ41	1670	5640
10.0MPa	25	210	135	100	78	58	24	4-Φ18	365	200
Female flange MFM DZ41Y-100LCB DZ41Y-100LC1 DZ41Y-100LC2 DZ41Y-100LC3 DZ41Y-100LC4 DZ41Y-100P DZ41Y-100R	32	230	150	110	82	66	24	4-Φ23	420	200
	50	250	195	145	112	88	28	4-Φ25	630	240
	65	280	220	170	138	110	32	8-Φ25	700	240
	80	310	230	180	148	121	34	8-Φ25	760	280
	100	350	265	210	172	150	38	8-Φ30	900	280