TRUNNION BALL VALVE-2 - Lishui RSV valve factory

Petroleum application field

RSV has developed a comprehensive portfolio of innovative products designed to meet the needs and expectations of customers in the world's largest and fastest growing economies. While the oil industry is constantly changing to meet the needs of consumers, RSV is constantly changing to meet the needs of the industries it serves.

Natural gas application areas

RSV understands the oil and gas industry's critical need for complete cut-off, reliable pressure and flow control. Ongoing natural gas application research and development, as well as on-site customer support, valve analysis and maintenance/repair services, provide customers with a high level of confidence and support.

Marine application field
The all-metal design of sea water resistant valves and stainless steel fittings, fast and reliable delivery, and the corresponding shipbuilding certification make RSV your partner in the field of shipbuilding. Monitoring and alarm function.

Marine application field
In the face of complex and changing offshore environments, RSV Vanco products have proven to be a reliable and reliable partner in the field of Marine technology. Among them, in the Marine valve-controlled liquid level system, RSV can easily be competent for the required signal acquisition and regulation in the system, so as to achieve monitoring and alarm functions.

Industrial application field

With the continuous development of industrial technology, science and technology change with each passing day, people's clothing, food, housing, travel are inseparable from energy, and the degree of dependence on energy is getting higher and higher. The main purpose of the valve is to control the flow of media through the system.

Chemical application field

Under normal circumstances, the chemical industry uses the flow channel as a straight-through valve, the reason is that the flow resistance is small, and the valve with the cut-off and open medium is usually selected, such valves are easy to adjust the flow as a control flow valve, ball valves and plug valves are suitable for reversing shunt, and the closing parts slide along the sealing surface with the wiping function of the valve. Such words apply to media with suspended particles.

Metallurgical application field
The all-metal design of sea water resistant valves and stainless steel fittings, fast and reliable delivery, and the corresponding shipbuilding certification make RSV your partner in the field of shipbuilding. Monitoring and alarm function.

Power application field
In the face of complex and changing offshore environments, RSV Vanco products have proven to be a reliable and reliable partner in the field of Marine technology. Among them, in the Marine valve-controlled liquid level system, RSV can easily be competent for the required signal acquisition and regulation in the system, so as to achieve monitoring and alarm functions.

SIDE ENTRY TRUNNION BALL VALVE

Design Technical Features:

Size：2”~60”(DN50~DN1500)

Class：CL150~900(PN10~PN160)

Materials：WCB-CF8-CF8M-4A-5A-6A, LCB, LCC

End Connections：RF、BW

Seat：Soft Seal/Metal Seal

Operation：Lever、Electric Moto、Pneumatic and Hydraulic

Optional: Stem extension for cryogenic service.

SIDE ENTRY TRUNNION BALL VALVE

Design Technical Features:

Size：2”~60”(DN50~DN1500)

Class：CL150~900(PN10~PN160)

Materials：WCB-CF8-CF8M-4A-5A-6A, LCB, LCC

End Connections：RF、BW

Seat：Soft Seal/Metal Seal

Operation：Lever、Electric Moto、Pneumatic and Hydraulic

Optional: Stem extension for cryogenic service.

SIDE ENTRY TRUNNION BALL VALVE

Design Technical Features:

Size：2”~60”(DN50~DN1500)

Class：CL150~900(PN10~PN160)

Materials：WCB-CF8-CF8M-4A-5A-6A, LCB, LCC

End Connections：RF、BW

Seat：Soft Seal/Metal Seal

Operation：Lever、Electric Moto、Pneumatic and Hydraulic

Optional: Stem extension for cryogenic service.

SIDE ENTRY TRUNNION BALL VALVE

Design Technical Features:

Size：2”~60”(DN50~DN1500)

Class：CL150~900(PN10~PN160)

Materials：WCB-CF8-CF8M-4A-5A-6A, LCB, LCC

End Connections：RF、BW

Seat：Soft Seal/Metal Seal

Operation：Lever、Electric Moto、Pneumatic and Hydraulic

Optional: Stem extension for cryogenic service.

SIDE ENTRY TRUNNION BALL VALVE

Design Technical Features:

Size：2”~60”(DN50~DN1500)

Class：CL150~900(PN10~PN160)

Materials：WCB-CF8-CF8M-4A-5A-6A, LCB, LCC

End Connections：RF、BW

Seat：Soft Seal/Metal Seal

Operation：Lever、Electric Moto、Pneumatic and Hydraulic

Optional: Stem extension for cryogenic service.

Side entry trunnion mounted ball valve

Structure: Trunnion mounted ball design

Operation: Lever, worm gear, pneumatic, electric, electro-hydraulic actuated, pneumatic-hydraulic actuated

Nominal diameter: DN50~DN1500（1/2"~60"）

pressure：150LB-2500LB

Seat: Soft Seated/ Metal seated

Material：WCB，CF8，CF8M，LCB, lCC，4A，5A，6A

Media：Petroleum, LNG, chemicals, water treatment, steam, etc.

Product Features

1.Bidirectional Sealing Performance

1.1 DBB (Double Block and Bleed) Seat Structure

Structural Design‌

Single Piston Effect (SPE): DBB uses two unidirectional sealing seats (SPE), each valve seat can only block pressure in one direction, relying on media pressure to push the seat against the ball for sealing.

‌‌

1.2. DIB (Double Isolation and Bleed) Seat Structure

1.2.1 DIB-1 Type (Double DPE Structure)

‌Double Piston Effect (DPE): Two bidirectional sealing seats (DPE) that maintain sealing through pressure difference and spring force regardless of the medium direction, achieving bidirectional isolation.

‌

1.2.2 DIB-2 Type (Mixed SPE+DPE)‌

Combined Structure: The inlet side employs an SPE (Single Piston Effect) seat for unidirectional sealing, while the outlet side utilizes a DPE (Double Piston Effect) seat for bidirectional sealing.

‌

2.Low Torque Operation

The ball is supported by upper and lower fixed supports, reducing friction resistance. Reduces operating torque by 40% compared to floating ball valves,

extending the actuator's lifespan.

3.Fire-Safe & Anti-Static Safety Design

4.Blowout-Proof Stem

Typical Application Scenarios

Oil and Gas: Isolation in long-distance pipelines, station high-pressure control

Chemical Industry: Corrosive medium (optional fluorine-lined/alloy materials)

Energy and Power: High-temperature steam systems

Water Treatment: Inlet/outlet control for high-pressure water pumps

OFFICE HEADQUARTERS

ZHEJIANG REDSTAR VALVE CO.,LTD Add: Fifth Floor, Huadun Technology Building No. 1, Madao South Road, Jiangbei Street, Oubei , Yongjia , Wenzhou City, Zhejiang, China

Tel：0086-577-66999238

Fax：0086-577-66999235

E-mail: sales@rsv-valve.com

MANUFACTURING BASE

Add.: No. 10, Baixian Road, Nanmingshan Street, Liandu District, Lishui City, Zhejiang , China

Tel：0086-578-2703096

E-mail: sales@rsv-valve.com

SELLING CENTRE

Add: Fifth Floor, Huadun Technology Building No. 1, Madao South Road, Jiangbei Street, Oubei , Yongjia , Wenzhou City, Zhejiang, China

Tel：0086-577-66999236

Fax：0086-577-66999235

E-mail: sales@rsv-valve.com

Official Accounts

Redstar Valve Co.,Ltd

Marine application field

Marine application field

Metallurgical application field

Power application field

Trunnion mounted ball valve

Floating ball valve

DBB&SBB

Cryogenic valve

Butterfly valve

Top entry valve

Fully welded valve

GGC

Service concept

Training and guidance

Production test

After-sales service