China Fire-Safe Multi-Layer Stem Sealing Class 2500 Trunnion Mounted Ball Valve - China Suppliers Factory Factories, Factory

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China Fire-Safe Multi-Layer Stem Sealing Class 2500 Trunnion Mounted Ball Valve - China Suppliers Factory Factories, Factory

Our trunnion-mounted Double Block and Bleed (DBB) design guarantees stable operation and secure cavity isolation, suitable for applications under Class 2500 pressure. As a leading manufacturer in China, we are committed to delivering products that meet the highest safety and performance standards.

The metal-to-metal hard sealing technology ensures zero-leakage performance, making it ideal for high-temperature, abrasive conditions, and frequent cycling operations. Our factory has rigorously tested these features to ensure reliability.

Designed with fire-safe and anti-static construction, our valves are equipped with multi-layer stem sealing to protect critical pipelines in hazardous environments, an essential characteristic for suppliers looking for quality and safety.

The heavy-duty gearbox, supported by high thrust bearings, provides smooth and controlled torque for large-size, ultra-high-pressure operations, reflecting our dedication as a top supplier in the valve industry.

Constructed from forged bodies that are precision machined, our products are factory-tested by SLVCN, ensuring they are reliable and adaptable for the most demanding oil and gas projects in the market.

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Product Description

Key Features

Three-Piece Split Body + Heavy Flange Connection

Thick flanges and multi-bolt design ensure high strength, easy assembly, and convenient maintenance in severe service.

Anti-Blowout Stem & Multi-Layer Packing

Multi-stage stem with anti-blowout design, multi-layer packing, and thrust bearings ensure safe, leak-free performance under high pressure.

Fire-Safe & Anti-Static Design

Visible fire-safe coating and anti-static construction maintain sealing and safety in hazardous environments.

Trunnion Mounted Design

Upper and lower bearings support the ball, preventing displacement and ensuring stable operation at Class 2500.

Metal-Seated Hard Seal

Metal-to-metal sealing delivers reliable shut-off in high temperature, high pressure, abrasive, and frequent cycling service.

Gearbox Operation (Optional Electric/Pneumatic)

Industrial gearbox provides smooth torque control for large sizes, with optional electric or pneumatic actuation.

Frequently Asked Questions

QWhat is the advantage of a three-piece split body design?

The three-piece split body with heavy flange connections allows each section to be disassembled independently for inspection or repair without removing the valve from the pipeline. This significantly reduces maintenance downtime and improves reliability in severe service applications.

QHow does the anti-blowout stem design protect against leaks?

The anti-blowout stem features a mechanical retention structure that prevents the stem from being ejected due to internal pressure. Combined with multi-layer packing and thrust bearings, this design ensures a completely leak-free seal even under extreme pressure conditions.

QWhat does fire-safe and anti-static design mean?

A fire-safe design ensures that the valve maintains a reliable seal even if soft sealing components are damaged by fire. The anti-static feature provides an electrical discharge path, eliminating static buildup that could ignite flammable media in hazardous environments.

QWhy is a trunnion mounted design preferred at Class 2500?

In a trunnion mounted design, the ball is mechanically anchored by bearings, so it does not move under line pressure. This significantly reduces operating torque, prevents seat wear, and ensures stable, precise shut-off performance at very high pressure ratings.

QCan these valves be automated with electric or pneumatic actuators?

Yes. While the standard configuration features an industrial gearbox for manual torque control, the design fully supports optional electric or pneumatic actuation, allowing for integration into automated control systems and remote operation.

Product Detail

China Fire-Safe Multi-Layer Stem Sealing Class 2500 Trunnion Mounted Ball Valve - China Suppliers Factory Factories, Factory

Product Description

Key Features