GB Stainless Steel Gate Valve

Design & Manufacture Standard

API 600

Face-to-face Standard

ASME B16.10

Flange Standard

ASME B16.5,JIS B2220

Inspection And Test Standard

API598

Nominal Pressure (MPa)

1.0, 1.6, 150Lb

Temperature Range (℃)

-29-200

Applicable Medium

Water,steam,oil,nitric acid,acetic acid,ammonia gas and ammonia

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Features and benefits Technical details Download

This gate valve is for full open and close, two sealing faces form the wedge-shape, of which angle differs from valve parameter, usually 5°. If medium temperature is not high, the angle is 2°.

Less torque for opening and closing, compared to globe valve. No matter open or closed, the movement direction is vertical with medium flow direction.

Large height, long time for on off, the disc travel is big, decreased by stem, water hammer is not easily produced.

Medium can flow to any of two sides direction. Easy for installation, the two-flow channel is symmetrical.The face-to-face dimension is compact.

Simple structure, compact length, good manufacturing technique, wide application range.

Good rigidity, smooth pass, small flow resistance, sealing face adapts the stainless steel and hard alloy. It has long lifecycle because PTFE packing has good sealing performance and operation is light and flexible.

HG/T 20592 PN16 Dimensions

HG/T 20592 PN16 Dimensions (Unit: mm)
DN	L	D	D1	D2	b	f	Z-d	H	H1	D0
15	130	95	65	45	14	2	4-14	220	240	120
20	150	105	75	55	14	2	4-14	255	284	140
25	160	115	85	65	14	2	4-14	275	303	160
32	180	135	100	78	16	2	4-18	280	321	190
40	200	145	110	85	16	2	4-18	300	352	200
50	250	160	125	100	16	2	4-18	358	438	240
65	265	180	145	120	18	2	8-18	375	450	240
80	280	195	160	135	20	2	8-18	433	528	280
100	300	215	180	155	20	2	8-18	502	620	320
125	325	245	210	185	22	2	8-18	612	753	360
150	350	280	240	210	24	2	8-23	676	847	360
200	400	335	295	265	26	2	12-23	820	1039	400
250	450	405	355	320	30	2	12-23	969	1245	450
300	500	460	410	375	30	2	12-25	1142	1472	560

HG/T 20592 PN25 Dimensions

HG/T 20592 PN25 Dimensions (Unit: mm)
DN	L	D	D1	D2	b	f	Z-d	H	H1	D0
15	130	95	65	45	16	2	4-14	220	240	120
20	150	105	75	55	16	2	4-14	255	284	140
25	160	115	85	65	16	2	4-14	275	303	160
32	180	135	100	78	18	2	4-18	280	321	180
40	200	145	110	85	18	2	4-18	300	352	200
50	250	160	125	100	20	2	4-18	358	438	240
65	265	180	145	120	22	2	8-18	375	450	240
80	280	195	160	135	22	2	8-18	433	528	280
100	300	230	190	160	24	2	8-23	502	620	320
125	325	270	220	188	28	2	8-25	612	753	360
150	350	300	250	218	30	2	8-25	676	847	360
200	400	360	310	278	34	2	12-25	820	1039	400
250	450	425	370	332	36	2	12-30	969	1245	450
300	500	485	430	390	40	2	16-30	1142	1472	560

Main Performance Specification (Unit: MPa)
Nominal Pressure	Shell Test	Sealing (liquid)	Sealing (air)	Up Sealing
1.6	2.4	1.8	0.6	1.8
2.5	3.8	2.8	0.6	2.8
4.0	6.0	4.4	0.6	4.4
6.4	9.6	7.0	0.6	7.0
10.0	15.0	11.0	0.6	11.0
16.0	24.0	18.0	0.6	18.0

Application Range
Housing Material	Applicable Medium	Applicable Temperature (°C)
Carbon steel (C model)	Water, Steam, Oil	≤425
CI NI TI steel (P model)	Nitrose	≤200
CI NI TI steel (R model)	Nitric Acid	≤200
Hascrome (I model)	Water, Steam, Oil	≤550

Material Specification
Name	Materials (WCB)	Materials (WC6)	Materials (LCB)	Materials (CF8M)
Valve body / Bonnet	WCB	WC6	LCB	CF8M
Disc	A105	A182-F11	A182-F304	A182-F316
Stem	A182-F6a	A182-F11	A182-F6a	A182-F316
Packing	flexible graphite			PTFE
Gasket	SS304 + flexible graphite
Bolt	A193-B7	A193-B7	A193-B8	A193-B8M
Applicable temperature	-29°C ~ 425°C	-29°C ~ 550°C	-46°C ~ 350°C	-40°C ~ 200°C
Applicable medium	water, oil, steam	steam, dimethylmethane	ethylene	nitrose