ZSH Shanghai Valve Manufzcturing Co.,LTD.

Description Material Performance Product Size Specifications

The gate valve is a valve that is opened and closed by the gate and moves vertically along the axis of the valve seat so as to realize the action of opening and closing. The main advantage of the gate valve is that the flow passage is unobstructed, the fluid resistance is small, the opening and closing torque is small. The main disadvantage is that the sealing surface is easy to abrade, and the opening and closing time is longer, and the body shape and weight are larger. Gate valve is widely used in the pipeline, suitable for manufacturing into large diameter valves. Gate valves are usually used to cut fluid and are not suitable for regulating flow. The utility model can be applied to low temperature and low pressure, and can also be applied to high temperature and high pressure, and can be used for various mediums according to different materials of the valve. But the valve is generally not used to transport mud and other media pipeline
Order note:
If there is no selected model, please provide detailed parameters, such as medium, temperature, pressure, caliber, material and so on. Our technicians will select for you
Two. Provided that the selected model is available according to the selected model
Three, non standard products need to provide samples or confirmed by drawings
Note: the information is for reference only, or incomplete, so please feel sorry for the inconvenience. The company can choose according to different requirements and parameters. The company has a variety of sizes, pressure, different materials, connections, drive mode, to meet the different needs of various types of gate valve. Please contact 021-6651 8677 or consult online.

Body cover plate	The stem	Sealing surface	Shim	filler	working temperature	Applicable medium
Low temperature high pressure cast steel	1Cr7Ni12	STL/STL	1Cr13/Flexible graphite Low temperature asbestos	PTFEPTFE dip Vinyl asbestos rope Flexible graphite	-46	The propane / allyl Methanol / ethane The gas / liquid ammonia
LCB
Low temperature high pressure cast steel					-60
LC1
Low temperature high pressure cast steel					-73
LC2
Low temperature high pressure cast steel	1Cr18Ni9Ti				-101
LC3
Low temperature high pressure cast steel					-115
LC4
Low temperature high pressure cast steel					-196

Nominal pressure PN	1.6	2.5	4.0	6.4	10.0
strength test	2.4	3.8	6.0	9.6	15.0
Water seal test	1.8	2.8	4.4	7.0	11.0
Upper seal test	1.8	2.8	4.4	7.0	11.0
Air tight test	0.4-0.7

1.6MPa	DN	L	D	D1	D2	b	n-Φd	H	D0
Convex method RF DZ40Y-16LCB DZ40Y-16LC1 DZ40Y-16LC2 DZ40Y-16LC3 DZ40Y-16LC4 DZ40Y-16P DZ40Y-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
Convex method RF DZ40Y-25LCB DZ40Y-25LC1 DZ40Y-25LC2 DZ40Y-25LC3 DZ40Y-25LC4 DZ40Y-25P DZ40Y-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

4.0 MPa	DN	L	D	D1	D2	D6	b	n-Φd	H	D0
Convex methodMFM DZ40Y-40LCB DZ40Y-40LC1 DZ40Y-40LC2 DZ40Y-40LC3 DZ40Y-40LC4 DZ40Y-40P DZ40Y-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
凹面法法 MFM DZ40Y-64LCB DZ40Y-64LC1 DZ40Y-64LC2 DZ40Y-64LC3 DZ40Y-64LC4 DZ40Y-64P DZ40Y-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
凹面法法 MFM DZ40Y-100LCB DZ40Y-100LC1 DZ40Y-100LC2 DZ40Y-100LC3 DZ40Y-100LC4 DZ40Y-100P DZ40Y-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

Design and manufacture	Structure length	Flange size	Pressure temperature	Test and test
JB/T7749	GB12221	JB79	Gb9131	JB/T9092

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