Cast Steel Trunnion Mounted Ball Valve_Trunnion mounted ball valve_Product

Cast Steel Trunnion Mounted Ball Valve

This series of ball valves features a floating ball and a forged body design. With their compact structure and lightweight design, they are suitable for fluid transmission pipeline systems in the petroleum, natural gas, and chemical industries.

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Structural Characteristics

Multiple Stem Sealing

Thrust washer + O-ring + graphite packing for fire-safe, leak-proof performance. Graphite packing can be replaced under pressure.
01
Anti-Static Design

Anti-static ball and spring to discharge static electricity.
02
Trunnion Mounted Design

Trunnion mounted ball, floating seats, bearingsupported stem to reduce torque, spring + line pressure energized sealing.
03
Multiple Seat Options

DBB/DIB seat options, zero-pressure/fullpressure differential sealing, low-torque design.
04
Fire-safe Seat Design

After the soft seal is destroyed by fire, a spring pushes the seat ring to form a metal-to-metal seal.
05
Actuator Options

Pneumatic / Electric / Hydraulic / Gas-over-Oil / Electro-hydraulic
06
Separate Ball and Stem of Design

Reduces the effect of medium pressure to lower operating torque.
07
Anti-Blowout Stem Design

Stem shoulder design prevents blowout under pressure
08
Emergency Sealant Injection System

Located in the seat and stem sealing areas for rapid seal recovery and easy periodic cleaning.
09
Double External Valve Sealing

O-ring primary seal, with a fire-safe ring providing an emergency seal in case of fire.
10

Main Technical Parameters

Nominal Diameter	DN100-DN300 \| 4"-12"
Design Pressure	PN16 \| CLASS150
Medium Temperature	-29℃~+121℃
Working Medium	Natural gas, oil products, water, etc.
Valve Construction	Two-piece
Design & Manufacturing Standards	API 6D、API 608、ASME B16.34、GB/T 12237
Flange Connection	ASME B16.5、GB/T 9113、HG/T 20592-20635
Face-to-Face Dimension	API 6D、ASME B16.10、GB/T 12221
Certifications

Product Recommendation

Cast Steel Floating Ball Valve

Forged Steel Floating Ball Valve

This series of ball valves features a floating ball and a forged body design. The dense material and excellent mechanical properties make them suitable for fluid transmission pipeline systems in the petroleum, natural gas, and chemical industries.

Cast Steel Trunnion Mounted Ball Valve

Forged Steel Trunnion Mounted Ball Valve

This series of ball valves features a trunnion mounted ball and a forged body design. Characterized by dense material, excellent mechanical properties, and high pressure-bearing capacity, they are suitable for high-pressure, severe service pipeline systems in the petroleum, natural gas, and chemical industries.

Fully Welded Ball Valve

This series of ball valves features a fully welded, integral body structure, offering zero leakage, an extended service life, and maintenance-free operation. They are ideal for long-distance transmission pipeline systems in industries like petroleum and natural gas, which demand the highest levels of safety and reliability.