OEM Class 2500 Trunnion Mounted Metal Seated Ball Valve | Heavy-Duty Electric Actuator | China Suppliers & Factory Manufacturer, Factory

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OEM Class 2500 Trunnion Mounted Metal Seated Ball Valve | Heavy-Duty Electric Actuator | China Suppliers & Factory Manufacturer, Factory

âˆš Designed for severe service, our Class 2500 valves are engineered with controlled sealing loads and a high safety margin, making them ideal for ultra-high pressure applications.

âˆš Our trunnion-mounted Double Block and Bleed (DBB) valves undergo rigorous high-pressure testing, ensuring reliable double isolation and safe cavity relief for peace of mind.

âˆš Featuring metal-seated sealing, these valves provide stable shut-off even under extreme temperature and pressure cycles, accommodating thermal expansion effectively.

âˆš With heavy-duty electric automation (AC 380V), our valves deliver high torque and smooth operation, complemented by manual override capabilities for critical control scenarios.

âˆš As an experienced high-pressure valve manufacturer and a leading factory in China, we maintain strict process control and quality standards tailored for the Oil & Gas industry, making us the preferred choice among suppliers.

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Product Description

Product Highlights & Key Features

Structure

Trunnion Mounted Ball Structure

Upper and lower trunnion bearings support the ball, preventing displacement under extreme pressure and ensuring stable operation.

Safety

Double Block and Bleed (DBB) Design

Dual seats provide full upstream and downstream isolation, while the cavity can be safely vented to meet high safety requirements.

Sealing

Metal-to-Metal Sealing

Metal seated design withstands high temperature, high pressure, abrasive, and erosive media with stable sealing performance.

Actuator

Heavy-Duty Electric Worm Gear Actuator

High output torque and smooth operation for reliable remote control, with manual override for emergency use.

Frequently Asked Questions

What is a trunnion mounted ball valve and how does it differ from a floating ball valve?

A trunnion mounted ball valve uses upper and lower trunnion bearings to mechanically fix the ball in place, preventing it from moving under high pressure. A floating ball valve relies on line pressure to push the ball against the seat for sealing. Trunnion designs are preferred for large-diameter and high-pressure applications where floating designs may not provide sufficient stability or sealing force.

What does Double Block and Bleed (DBB) mean in valve design?

Double Block and Bleed (DBB) refers to a valve configuration where two independent seating surfaces simultaneously block flow from both upstream and downstream directions, while a bleed port allows the trapped cavity pressure between the two seats to be safely vented or monitored. This design is essential for pipeline isolation, maintenance safety, and compliance with strict industry standards.

In what applications is metal-to-metal sealing recommended?

Metal-to-metal sealing is recommended in applications involving high temperatures, high pressures, abrasive slurries, erosive fluids, or steam where soft (elastomeric or PTFE) seats would degrade quickly. Common industries include oil refining, petrochemical processing, power generation, and mining, where long-term sealing reliability under harsh conditions is critical.

What are the advantages of an electric worm gear actuator on a ball valve?

An electric worm gear actuator provides high mechanical advantage, delivering the large output torque needed to operate heavy-duty ball valves smoothly and reliably. It enables remote control and automation, reducing the need for manual intervention. The built-in manual override ensures the valve can still be operated safely during power failures or emergencies, maintaining process continuity.

Which industry standards do trunnion mounted ball valves typically comply with?

Trunnion mounted ball valves are commonly manufactured and tested in accordance with standards such as API 6D (Pipeline Valves), API 608 (Metal Ball Valves), ASME B16.34 (Valves — Flanged, Threaded, and Welding End), and ISO 17292. DBB functionality is further governed by API 6D requirements. Compliance with these standards ensures the valves meet rigorous safety, pressure, and performance criteria for industrial use.

How should trunnion mounted ball valves be maintained to ensure long-term performance?

Regular maintenance should include periodic lubrication of the stem and trunnion bearings, inspection of seat sealing integrity, and testing of the bleed port function on DBB valves. The actuator's mechanical components and electrical connections should be inspected at scheduled intervals. For metal-seated valves, monitoring for signs of erosion or wear on sealing surfaces is important, particularly in abrasive service. Following the manufacturer's maintenance schedule and applicable industry guidelines will extend valve service life significantly.

Product Detail

OEM Class 2500 Trunnion Mounted Metal Seated Ball Valve | Heavy-Duty Electric Actuator | China Suppliers & Factory Manufacturer, Factory

Product Description