ASME Gate Valve

Product overview

It's used to cut off or connect the flow of pipeline which is used in circumstance such as petroleum, chemical, fire and power station. It can realize remote control when using an electric or pneumatic actuator.

Product Features

Compact structure, reasonable design, good rigidity of valve, smooth passage and small flow coefficient.
The sealing surface is made of stainless steel and cemented carbide with long service life.
Flexible graphite packing, reliable sealing, easy and flexible operation.
Manual, pneumatic, electric and gear drive.
Structural form is elastic wedge type single gate, rigid wedge type single gate double gate.

Administer Standard

Design and Manufacture	Face to Face / End to End	Flange Dimension	Butt Welding Dimension	Pressure Temperature Rating	Inspection and Test
API 600	ASME B16.10	ASME B16.5	ASME B16.25	ASME B16.34	API 598
API 6D	API 6D	ASME B16.5	ASME B16.25	ASME B16.34	API 6D

Pressure Test

(MPa)

Nominal Pressure	Shell Test (MPa)	Shell Test (Lbf/in²)	Water Seal Test (MPa)	Water Seal Test (Lbf/in²)	Air Seal Test (MPa)	Air Seal Test (Lbf/in²)
150	3.0	430	2.2	315	0.4–0.7	60–100
300	7.7	1110	5.7	815	0.4–0.7	60–100
600	15.3	2220	11.3	1630	0.4–0.7	60–100
900	23.0	3330	17.0	2445	0.4–0.7	60–100
1500	38.4	5560	28.2	4080	0.4–0.7	60–100
2500	64.0	9255	47.0	6790	0.4–0.7	60–100

Main part Materials and Property

Body / Cover / Disc	Stem	Sealing Face	Sealing Shim	Packing	Working Temperature (°C)	Suitable Medium
WCB	F6a	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤425°C	Water, Steam, Petroleum Products
WC1	F11 / F12	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤450°C	Water, Steam, Petroleum Products
WC6	F11 / F12	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤540°C	Water, Steam, Petroleum Products
WC9	F11 / F12	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤570°C	Water, Steam, Petroleum Products
C5 / C12	F11 / F12	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤540°C	Water, Steam, Petroleum Products
CF8	F304	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤200°C	Nitric acid, Acetic acid, Urea
CF8M	F316	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤200°C	Nitric acid, Acetic acid, Urea
CF3	F304L	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤200°C	Nitric acid, Acetic acid, Urea
CF3M	F316L	13Cr STL / With Body Material / PTFE / Nylon	Enhanced Flexible Graphite / 13Cr / Flexible Graphite / 1Cr13 / Flexible Graphite / SFB-2 / 08 Soft Steel / F304 / F316 / F304L / F316L	Flexible Graphite / Enhanced Flexible Graphite / SFB / 260 / SFP / 260 / PTFE	≤200°C	Nitric acid, Acetic acid, Urea

ASME Gate Valve

Z40H Z40Y Z40W CLASS 150Lb

DN (mm)	DN (in)	L	D	D1	D2	b	n-Φd	H	Do
20	3/4	117	100	69.9	42.9	11.2	4-Φ16	192	100
25	1	127	110	79.4	50.8	12.7	4-Φ16	230	120
32	1¼	140	115	88.9	63.5	14.3	4-Φ16	246	150
40	1½	165	125	98.4	73.0	15.9	4-Φ16	283	180
50	2	178	150	120.7	92.1	17.5	4-Φ19	323	200
65	2½	190	180	139.7	104.8	20.7	4-Φ19	347	220
80	3	203	190	152.4	127.0	22.3	4-Φ19	383	240
100	4	229	230	190.5	157.2	22.3	8-Φ19	457	250
125	5	254	255	215.9	185.7	22.3	8-Φ22.5	632	280
150	6	267	280	241.3	215.9	23.9	8-Φ22.5	635	300
200	8	292	345	298.5	269.9	27.0	8-Φ22.5	762	350
250	10	330	405	362.0	323.8	28.6	12-Φ25.5	892	400
300	12	356	485	431.8	381.0	30.2	12-Φ25.5	1080	450
350	14	381	535	476.3	412.8	33.4	12-Φ28.5	1295	500
400	16	406	595	539.8	469.9	35.0	16-Φ28.5	1435	550
450	18	432	635	577.9	533.4	38.1	16-Φ32	1626	600
500	20	457	700	635.0	584.2	41.3	20-Φ32	1829	600
600	24	508	815	749.3	692.2	46.1	20-Φ35	2175	650
650	26	559	785	744.5	711	39.8	36-Φ22.5	2235	700
700	28	610	835	795.3	762	43.0	40-Φ22.5	2310	750
750	30	610	885	846.1	813	43.0	44-Φ22.5	2695	800
800	32	660	940	900.1	864	44.6	48-Φ22.5	3708	850
900	36	711	1055	1009.6	972	50.9	44-Φ25.4	3924	900
1000	40	812	1175	1120.8	1080	54.1	44-Φ28.5	4318	950
1050	42	787	1225	1171.6	1130	57.3	48-Φ28.5	-	1000
1200	48	914	1390	1335.1	1289	63.6	44-Φ32	-	1000

Z40H Z40Y Z40W CLASS 300Lb

DN (mm)	DN (in)	L	D	D1	D2	b	n-Φd	H	Do
20	3/4	152	115	82.6	42.9	14.3	4-Φ19	193	150
25	1	165	125	88.9	50.8	15.9	4-Φ19	230	160
32	1¼	178	135	98.4	63.5	17.5	4-Φ19	246	180
40	1½	190	155	114.3	73.0	19.1	4-Φ22.5	283	200
50	2	216	165	127.0	92.1	20.7	8-Φ19	330	220
65	2½	241	190	149.2	104.8	23.9	8-Φ22.5	368	240
80	3	283	210	168.3	127.0	27.0	8-Φ22.5	394	280
100	4	305	255	200.0	157.2	30.2	8-Φ22.5	473	300
125	5	381	280	235.0	185.7	33.4	8-Φ22.5	660	350
150	6	403	320	269.9	215.9	35.0	12-Φ22.5	711	400
200	8	419	380	330.2	269.9	39.7	12-Φ25.4	813	450
250	10	457	445	387.4	323.8	46.1	16-Φ28.5	1003	500
300	12	502	520	450.8	381.0	49.3	16-Φ32	1137	550
350	14	762	585	514.4	412.8	52.4	20-Φ32	1489	600
400	16	838	650	571.5	469.9	55.6	20-Φ35	1580	650
450	18	914	710	628.6	533.4	58.8	24-Φ35	2017	700
500	20	991	775	685.8	584.2	62.0	24-Φ35	2228	700
600	24	1143	915	812.8	692.2	68.3	24-Φ41	2650	750
650	26	1245	865	803.3	737	87.4	32-Φ35	3219	800
700	28	1346	920	857.2	787	87.4	36-Φ35	3378	850
750	30	1397	990	920.8	845	92.1	36-Φ38	3530	900
800	32	1524	1055	977.9	902	101.6	32-Φ41.2	3708	1000
900	36	1727.2	1170	1089.0	1010	101.6	32-Φ44.5	3924	1100
1000	40	-	1275	1190.6	1114	114.3	40-Φ44.5	4318	1100
1050	42	-	1335	1244.6	1168	117.5	36-Φ47.8	-	1100
1200	48	-	1510	1416.0	1327	127.0	40-Φ50.8	-	1100

ASME Gate Valve

Z40H Z40Y Z40W CLASS 600Lb

DN (mm)	DN (in)	L	D	D1	D2	b	n-Φd	H	Do
50	2	292	165	127.0	92.1	25.4	8-Φ19	425	250
65	2½	330	190	149.2	104.8	28.6	8-Φ22.5	485	280
80	3	356	210	168.3	127.0	31.8	8-Φ22.5	510	300
100	4	432	275	215.9	157.2	38.1	8-Φ25.4	610	350
125	5	508	330	266.7	185.7	44.5	8-Φ28.5	700	400
150	6	559	355	292.1	215.9	47.7	12-Φ28.5	820	450
200	8	660	420	349.2	269.9	55.6	12-Φ32	920	500
250	10	787	510	431.8	323.8	63.5	16-Φ35	1080	550
300	12	838	560	489.0	381.0	66.7	20-Φ35	1220	600
350	14	889	605	527.0	412.8	69.9	20-Φ38	1473	650
400	16	991	685	603.2	469.9	76.2	20-Φ41	1651	700
450	18	1092	745	654.0	533.4	82.6	20-Φ44.5	1727	750
500	20	1194	815	723.9	584.2	88.9	24-Φ44.5	2019	800
600	24	1397	940	838.2	692.2	101.6	24-Φ51	2155	850

Z40H Z40Y Z40W CLASS 900Lb

DN (mm)	DN (in)	L	D	D1	D2	b	n-Φd	H	Do
50	2	371	215	165.1	95.25	38.1	8-Φ25	521	300
65	2½	422	245	190.5	107.95	41.3	8-Φ28.5	584	350
80	3	384	240	190.5	123.83	38.1	8-Φ25.4	648	350
100	4	460	290	235.0	149.23	44.5	8-Φ32	750	400
125	5	562	350	279.4	180.98	50.8	8-Φ35	780	400
150	6	613	380	317.5	211.12	55.6	12-Φ32	800	500
200	8	740	470	393.7	269.88	63.5	12-Φ38	940	600
250	10	841	545	469.6	323.85	69.9	16-Φ38	1130	600
300	12	968	610	533.4	381.00	79.4	20-Φ38	1340	650
350	14	1038	640	558.8	419.10	85.8	20-Φ41	1543	700
400	16	1140	705	616.0	469.90	88.9	20-Φ44.5	1600	750
450	18	1232	785	685.8	533.40	101.6	20-Φ51	1830	800
500	20	1334	855	749.3	584.20	108.0	20-Φ54	2100	850
600	24	1568	1040	901.7	692.15	139.7	20-Φ66.5	2610	900

Z40H Z40Y Z40W CLASS 1500Lb

DN (mm)	DN (in)	L	D	D1	D2	b	n-Φd	H	Do
50	2	371	215	165.1	95.25	38.1	8-Φ25.4	614	300
65	2½	422	245	190.5	107.95	41.3	8-Φ28.5	705	350
80	3	473	265	203.2	136.53	47.7	8-Φ32	705	400
100	4	549	310	241.3	161.93	54.0	8-Φ35	927	400
125	5	676	375	292.1	193.68	73.1	8-Φ41	1120	500
150	6	711	395	317.5	211.14	82.6	12-Φ38	1191	600
200	8	841	485	393.7	269.88	92.1	12-Φ45	1524	650
250	10	1000	585	482.6	323.85	108.0	12-Φ51	1854	700
300	12	1146	675	571.5	381.00	123.9	16-Φ54	2184	700
350	14	1276	750	635.0	419.10	133.4	16-Φ61	2216	800
400	16	1407	825	704.8	469.90	146.1	16-Φ67	2210	800
450	18	1559	915	774.7	533.40	162.0	16-Φ73	-	850
500	20	1686	985	831.8	584.20	177.8	16-Φ80	-	900
600	24	1972	1170	990.6	692.15	203.2	16-Φ92	-	950

Manufacturing Process

Step 1: Order and Design

Technical requirements for the ASME gate valve are confirmed based on the pressure rating, dimensions, material, and connection standards provided by the customer. The engineering department performs drawing design, structural verification, and process review in accordance with ASME standards to ensure the product meets operating conditions and manufacturing specifications.

ASME Gate Valve

Step 2: Forging & Casting

Major pressure-bearing components, such as the valve body, bonnet, and gate, are formed using forging or casting processes. For ASME gate valves, raw materials must comply with the relevant ASTM/ASME material standards. Blanks undergo inspections for chemical composition, dimensions, and surface quality to ensure stability during subsequent machining.

ASME Gate Valve

Step 3: Machining

Precision machining is performed on the valve body, bonnet, gate, stem, and connection areas, including turning, boring, drilling, tapping, and sealing surface machining. Critical dimensions of the ASME gate valve, such as the flange faces, seat sealing surfaces, and stem mating surfaces, must be strictly controlled for tolerances and surface roughness.

ASME Gate Valve

Step 4: Assembly

After all components pass inspection, the assembly process begins, sequentially installing the seat, gate, stem, bonnet, packing, and operating mechanism. During assembly, the opening and closing travel, coaxiality, and seal fit must be inspected to ensure the ASME gate valve operates smoothly and opens and closes effortlessly.

ASME Gate Valve

Step 5: Testing & Quality Assurance

After assembly, the ASME gate valve undergoes strength testing, seal testing, and necessary torque checks. Testing is generally conducted in accordance with API 598 or relevant ASME/MSS requirements. Simultaneously, dimensional re-inspection, material traceability, and final visual inspection are conducted to ensure reliable product quality.

ASME Gate Valve

Step 6: Painting and Finishing

After passing inspection, the valve surface is cleaned, treated with rust prevention, painted, and marked. Finally, the nameplate and protective cover are installed, and the valve is packaged for shipment to ensure proper protection during transportation and storage, as well as compliance with delivery requirements.

ASME Gate Valve

Applications

Widely used in harsh industrial environments such as petrochemical, thermal power, chemical, and oil pipeline facilities to shut off or connect media (water, oil, steam)

These valves are widely used in:

Oil and Gas

Chemical Processing

Power Plants

Water Treatment

Metallurgy and Mining

Agriculture and Irrigation

Factory Environment

Factory Production Line

Material Storage

Quality Control

Assembly Workshop

Quality Control

Assembly Workshop

Why Choose Us

Superior Quality

Our valves are manufactured using premium materials and undergo rigorous quality testing to ensure reliable performance in demanding industrial applications.

Advanced Technology

Equipped with state-of-the-art CNC machining centers and precision manufacturing equipment, we deliver valves with exceptional accuracy and consistency.

Competitive Pricing

Through optimized manufacturing processes and bulk material procurement, we offer high-quality valves at competitive prices without compromising on quality.

Expert Support

Our experienced technical team provides comprehensive support from product selection to after-sales service, ensuring optimal valve performance for your specific application.

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