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Home > Forged Steel Ball Valve > OEM Fire-Safe Multi-Layer Stem Sealing Trunnion Mounted Ball Valve Class 2500 - Reliable China Suppliers & Factory Manufacturers, Factories
OEM Fire-Safe Multi-Layer Stem Sealing Trunnion Mounted Ball Valve Class 2500 - Reliable China Suppliers & Factory Manufacturers, Factories
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OEM Fire-Safe Multi-Layer Stem Sealing Trunnion Mounted Ball Valve Class 2500 - Reliable China Suppliers & Factory Manufacturers, Factories

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

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√ Our trunnion-mounted Double Block and Bleed (DBB) design guarantees stable operation and safe cavity isolation, capable of withstanding Class 2500 pressure, making it an ideal choice for China’s demanding oil and gas suppliers.

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√ Equipped with metal-to-metal hard sealing, this valve ensures zero-leakage performance, suitable for high temperature, abrasive environments, and frequent cycling, essential for efficient operations in various industries.

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√ The fire-safe and anti-static construction, combined with multi-layer stem sealing, protects critical pipelines in hazardous environments, reflecting our commitment to safety and reliability in factory standards.

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√ A heavy-duty gearbox with high thrust bearing support provides smooth, controlled torque for large-size, ultra-high-pressure applications, ensuring efficiency and durability required by suppliers in the oil and gas sector.

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√ Crafted from forged body materials, precision machined, and rigorously factory-tested by SLVCN, our products are designed to provide unmatched reliability and adaptability for demanding projects across China.

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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 Actuation)

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

Frequently Asked Questions
Q:
What is the purpose of the three-piece split body design in this ball valve?
The three-piece split body design with heavy flange connection allows for easy disassembly and maintenance without removing the valve from the pipeline. The thick flanges and multi-bolt configuration provide superior structural integrity, making it ideal for severe service conditions involving high pressure and extreme temperatures.
Q:
How does the anti-blowout stem design improve valve safety?
The anti-blowout stem design prevents the stem from being ejected under high-pressure conditions, which is a critical safety feature. Combined with multi-layer packing and thrust bearings, it ensures a completely leak-free seal even under extreme operating pressures.
Q:
What environments is the fire-safe and anti-static design suitable for?
It is specifically engineered for hazardous environments such as oil and gas facilities, chemical plants, and refineries where flammable materials are present. The fire-safe coating maintains sealing integrity during fire events, while the anti-static construction prevents static electricity ignition.
Q:
What is the advantage of a trunnion mounted design over a floating ball design?
In a trunnion design, the ball is anchored by bearings, so it doesn't shift under pressure. This is essential for high-pressure Class 2500 service as it reduces operating torque and prevents seat wear, ensuring stable performance.
Q:
When should a metal-seated hard seal be chosen over a soft seat?
Choose metal-seated seals for high temperatures, abrasive media, frequent cycling, or extremely high-pressure conditions where elastomeric soft seats would degrade or fail prematurely.
Q:
What actuation options are available?
The standard is manual gearbox operation. Optional electric actuators are available for automation, and pneumatic actuators are offered for high-speed switching requirements or hazardous environments.

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