Trunnion Ball Valve

The ball of the trunnion ball valve is fixed and supported by upper and lower trunnions. Compared with floating ball valves, it features higher pressure resistance and impact resistance, making it suitable for large-diameter and high-pressure industrial pipeline applications such as oil and gas pipelines, chemical engineering, and other related fields.

I. Product Introduction

The ball of the trunnion ball valve is fixed and supported by upper and lower trunnions. Compared with floating ball valves, it features higher pressure resistance and impact resistance, making it suitable for large-diameter and high-pressure industrial pipeline applications such as oil and gas pipelines, chemical engineering, and other related fields.

II. Product Features

Stable Structure

The ball is secured by upper and lower trunnions, which eliminates displacement during operation and ensures excellent sealing performance even under high pressure and impact loads.
Superior Pressure & Impact Resistance

Outperforms floating ball valves in withstanding high pressure and external impact, ideal for harsh working conditions in oil, gas, and chemical industries.
Broad Material Compatibility

Key components are made of high-quality alloys, stainless steel, and advanced polymers, ensuring corrosion resistance and durability in various media environments.
Wide Application Scope

Designed for large-diameter, high-pressure industrial pipelines, meeting the stringent requirements of oil and gas transmission, chemical processing, and heavy industry.

III. Technical Data

1. Main Components and Materials (ASTM Standards)

No.	Component Name	Materials
1	Body	A216-WCB, A352-LCB, A351-CF8M, CF3, CF3M, A52-LCB, LCC, 31803
2	Spring	60Si2Mn, SS304, SS316, 17-7PH, Inconel X750
3	Seat	Polytetrafluoroethylene (PTFE), Reinforced Polytetrafluoroethylene (RPTFE), Polyether Ether Ketone (PEEK), Poly(p-phenylene oxide) (PPL)
4	Ball	F304, F316, F316L, A105+ENP, F51LF2+ENP, 1Cr18Ni9Ti
5	Orifice	45*, A182-F6, F304, F316, F316L
6	Gland Packing	PTFE, Graphite
7	Stem	A105+ENP, A182-F6, F304, F316, F316L
8	Gland	A216-WCB, A351-CF8
9	Upstream Retainer	A216-WCB
10	Cover Plate	A105+ENP, A182-F304, F316, F316L
11	O-Ring	Fluororubber, Fluororubber
12	Sliding Bearing	+PTFE, PTFE & Stainless Steel, 316+PTFE
13	Stud	35#, B7, B8, B8M, L7
14	Nut	25#, 2H, 8, 8M, 4
15	Bonnet	A216-WCB, CF8, CF8M, CF3M, A352-LCB
16	Seat Ring	A105+ENP, A182-F6, F304, F316, F316L
17	Gasket	PTFE, Graphite + Stainless Steel
18	Bolt	35#, B7, B8, B8M, L7
19	Retaining Ring	A105+ENP, A182-F6, F304, F316, F316L
20	Bottom Cover	A105+ENP, A182-F304, F316, F316L
21	Pressure Relief Screw	35#, B7, B8, B8M

2. Design and Manufacturing Standards

Category	Standards
Design Reference	API Series
Design Standard	API 6D, ANSI B16.34, BS5351
Body	ANSI B16.10
End Flange	ANSI B16.5, B16.47
BW Ends	ANSI B16.25
Testing and Inspection	API 6D, API 598
Fire Safety	API 607

3. Test Pressure (API 598) (Unit: MPa)

Nominal Pressure (Class)	Shell Test Pressure	Seat Test Pressure	Hydrostatic Test Pressure
Class 150	3.0	2.2	0.6
Class 300	7.7	5.7	–
Class 600	15.4	11.3	–
Class 900	23.0	16.9	–
Class 1500	38.3	28.1	–
Class 2500	63.9	46.9	–

4. Minimum Test Duration (API 598) (Unit: Seconds)

NPS (inch)	Shell Test	Seat Test	Hydrostatic Test
≤ 2	15	15	15
2-1/2 ~ 6	60	60	60
8～12	120	120	120
≥ 14	300	120	120

Ⅳ．The main shape and connection size

Class150 3 piece ball valves

NPS	in	2	2 1/2	3	4	6	8	10	12	14	16	18	20	24
d	mm	51	64	76	102	152	203	254	305	337	387	438	489	591
L(RF)	mm	178	190	203	229	394	457	533	610	686	762	864	914	1016
d1	mm	92	105	127	157	216	270	324	381	413	470	533	584	692
d2	mm	120.5	139.5	152.5	190.5	241.5	298.5	362	432	476	540	578	635	749.5
D	mm	152	178	190	229	279	343	406	483	533	597	635	699	813
b	mm	16	18	19	24	26	29	31	32	35	37	40	43	48
n-Фd	mm	4-19	4-19	4-19	8-19	8-22	8-22	12-25	12-25	12-29	16-29	16-32	20-32	20-35
H	mm	176	200	215	252	330	448	505	556	620	700	750	805	1110
W	mm	350	400	400	500	1000	300	350	400	500	500	500	500	500

Class300 3 piece ball valves

NPS	in	2	2 1/2	3	4	6	8	10	12	14	16	18	20	24
d	mm	51	64	76	102	152	203	254	305	337	387	432	483	584
L(RF)	mm	216	241	283	305	403	502	568	648	762	838	914	991	1143
d1	mm	92	105	127	157	216	270	324	381	413	470	533	584	692
d2	mm	127	149	168.5	200	270	330	387.5	451	514.5	571.5	628.5	686	813
D	mm	165	190	210	254	318	381	445	521	584	648	711	775	914
b	mm	23	26	29	32	37	42	48	51	54	58	61	64	70
n-Фd	mm	8-19	8-22	8-22	8-22	12-22	12-25	16-29	16-32	20-32	20-35	24-35	24-35	24-41
H	mm	176	200	215	252	330	448	505	556	620	700	750	805	1110
W	mm	350	400	400	500	1000	300	350	400	500	500	500	500	500

Class600 3 piece ball valves

NPS	in	2	3	4	5	6	8	10	12	14	16	18	20	24
d	mm	51	76	102	127	152	200	248	298	327	375	419	464	559
L(RF)	mm	292	356	432	508	559	660	787	838	889	991	1092	1194	1397
d1	mm	92	127	157	186	216	270	324	381	413	470	533	584	692
d2	mm	127	168.5	216	267	292	349	432	489	527	603	654	724	838
D	mm	165	210	273	330	356	419	508	559	603	686	743	813	940
b	mm	26	32	38	45	48	56	64	67	70	77	83	89	102
n-Фd	mm	8-19	8-22	8-25	8-29	12-29	12-32	16-35	20-35	20-38	20-41	20-44	24-44	24-52
H	mm	192	279	315	320	323	381	518	568	665	730	795	825	973
W	mm	600	1000	1500	1500	1500	500	500	500	500	500	500	500	500

Class900 3 piece ball valves

NPS	in	2	3	4	5	6	8	10	12	14	16	18	20	24
d	mm	47	73	98	121	146	190	234	282	311	354	400	444	533
L(RF)	mm	368	381	457	559	610	737	838	965	1029	1130	1219	1321	1549
L(RTJ)	mm	371	384	460	562	613	740	841	968	1039	1140	1232	1334	1568
d1	mm	92	127	157	186	216	270	324	381	413	470	533	584	692
d2	mm	165	190.5	235	279.4	317.5	393.7	469.9	533.4	558.8	615.9	685.8	749.3	901.7
D	mm	216	241	292	349	381	470	545	610	640	705	785	855	1040
b	mm	38.5	38.5	44.5	51	56	64	70	79.5	86	89	102	108	140
n-Фd	mm	8-26	8-26	8-32	8-35	12-32	12-39	16-39	20-39	20-42	20-45	20-51	20-54	20-67
H	mm	192	279	315	320	323	381	518	568	665	730	795	825	973
W	mm	600	1000	1500	1500	500	500	500	500	500	500	500	500	500

About Us

Founded in 2016, Shanghai Wangye Valve Manufacturing Co., Ltd. is a professional industrial fluid control manufacturer with nearly a decade of experience, integrating R&D, intelligent production, sales, and customized solutions. Leveraging Shanghai’s advanced manufacturing advantages, we’ve built a reliable brand across petrochemicals, power, metallurgy, water treatment, and new energy industries, offering gate/ball/butterfly valves and tailored solutions for harsh conditions. Backed by advanced equipment, full-process quality control, and ISO certifications, we adhere to “Integrity, Quality, Customer Focus, Innovation” and provide comprehensive services, striving for long-term cooperation and continuous technological upgrading.

Why Choose Us

Talent and Efficient Team

WYE always insists that employees are the most valuable asset of the enterprise and the future of WYE; Adhere to prioritizing talent selection, education, and utilization in the development of enterprises; introducing talent as the highest return investment behavior. We regard talent as the primary resource for effective management, and pursue a high degree of harmony and unity between employee personal development and enterprise development.We encourage you to have a special perspective, think independently, and be good at organizing resources from all parties. Always maintain a responsible attitude towards results and a positive team spirit that is willing to share in every task..

High End Processing Equipment Creating Excellent Product Quality

Advanced automated production equipment and sophisticated assembly line production demonstrate first-class quality.Technical experts directly participate in production to ensure the concealment and reliability of the product.The increasing awareness of high-quality products and the continuous supply of industrial products have made WYE constantly changing.No matter how the world changes, the persistent spirit of excellence among WTE people remains unchanged.

Warehouse Strength

In our facility, raw materials (including core components and packaging supplies) are strictly controlled via a real-time digital inventory system—tracking batches, shelf life, and storage conditions to boost traceability and cut waste. Semi-finished products, post-preliminary quality checks, are stored per strict industry standards: labeled with progress/inspection records to avoid cross-contamination and damage. Finished products are sorted into specialized warehouses by type, market, and delivery schedule, streamlining picking and reducing dispatch delays. This standardized process effectively boosts efficiency: cutting redundant steps by 30%, shortening fulfillment cycles by 20%, and minimizing inventory/shipment errors.

Customized Solutions & After-Sales Support

Tailored to the distinct demands of industries like petrochemicals, new energy, and metallurgy, WYE provides personalized industrial fluid control solutions—covering pre-project demand assessment, customized valve design (matching specific working conditions like pressure or medium type), and on-site technical consultation to align with clients’ operational scenarios. Additionally, we offer comprehensive after-sales support: including on-site installation guidance, regular equipment maintenance inspections, and 24/7 responsive fault troubleshooting, which ensures the stable operation of clients’ systems and strengthens long-term cooperative partnerships.

Our Services

Our company is a one-stop solution for all valve-related needs, offering customization to tailor valves to unique specifications, professional installation & commissioning for seamless integration and optimal performance, maintenance & repair to keep valves in top condition and extend their lifespan, and technical support & consultation for expert advice on selection, optimization, and troubleshooting throughout every project stage.

Our Products

EXHIBITION & PROJECTS

COOPERATIVE PARTNER

Valve Solutions That Transform Your Operations

Our valves offer superior durability, precise control, and tailored solutions for your industrial, commercial, or residential needs. Don’t miss the opportunity to get reliable valve products and expert support.

Trunnion Ball Valve

I. Product Introduction

II. Product Features

III. Technical Data