Didtek Flange Carbon Steel A105N Forged Steel Trunnion Ball Valves

Product Overview

This is a high-performance ball valve made of A105N carbon steel forgings, connected by flanges, and based on a fixed ball design. It integrates the sturdiness of forged steel materials, the stability of fixed structures and the convenience of flange connections, making it an ideal choice for controlling fluid cut-off in fields such as petroleum, chemical engineering, power and long-distance pipelines.

Didtek Flange Carbon Steel A105N Forged Steel Trunnion Ball Valves

Detailed explanation of Core features

1. Flange connection

The inlet and outlet of the valve are equipped with flanges, which are connected to the flanges of the pipeline system through bolts.

Advantages

Stable connection: It can withstand high pipe stress and is suitable for vibrating environments.

Reliable sealing: Good static sealing is achieved through flange gaskets.

Easy to maintain: It is convenient to disassemble and assemble, and easy to replace valves or inspect the system.

2. Carbon steel A105N

Material standard: ASTM A105 Grade N is a carbon steel material specifically used for pipe component forgings.

The meaning of "N" : It indicates that the material has undergone normalizing treatment. This heat treatment process can refine the grain structure, enhance the impact toughness of the material, and improve the uniformity and stability of its mechanical properties.

Applicable working conditions

Temperature range: Generally applicable to operating conditions ranging from approximately -29°C to 425°C.

Medium: Suitable for non-strongly corrosive media such as water, steam, oil products, and natural gas.

Features: It has excellent strength and cost-effectiveness at normal to medium temperatures.

3. Forged steel

Manufacturing process: The core pressure-bearing components such as the valve body and valve cover are formed through forging process.

Advantages over cast steel:

Higher mechanical strength and better toughness.

A denser metal structure eliminates common defects such as shrinkage cavities and gas holes in castings.

It has a stronger pressure-bearing capacity and higher safety and reliability.

4. Fixed ball valve

Core design: This is the most fundamental difference from the ordinary floating ball valve. The upper and lower ends of its sphere are supported by two fixed pivots, and the sphere will not shift during the opening and closing process.

Core advantages

Low operating torque: The medium pressure will not push the ball towards the valve seat, so the switch is very effortless, and the required actuator is smaller and more economical.

High-voltage and large-diameter application: It is a standard and necessary design for high-voltage and large-diameter working conditions (typically DN≥8").

Excellent sealing performance: It usually adopts an upstream and downstream bidirectional blocking and discharging (DBB) design and can achieve bidirectional sealing.

Long service life: The valve seat is pre-tightened by a spring at low pressure and pushed by the medium pressure at high pressure, always maintaining good contact with the ball with minimal wear.

Fire safety design: The standard configuration usually includes fireproof structures. When non-metallic seals are burned by fire, the metal-to-metal secondary sealing system can provide a certain degree of cut-off function in emergency situations.

Typical application scenarios

Oil and gas: Long-distance pipelines (main lines, branch lines cut off), refineries, liquefied natural gas receiving terminals.

Chemical industry: Various process pipelines, especially suitable for occasions where reliable cutting is required.

Electric power industry: Thermal systems and water supply systems of power plants.

Marine engineering: Common systems for ships and platforms.

General industry: Any medium and high-pressure system that requires reliable fluid control.

Summary

Flange Carbon Steel A105N Forged Steel Trunnion Ball Valves is an industrial-grade high-performance ball valve with precise positioning. It passes through:

A105N forged steel offers outstanding strength, toughness and economy under normal working conditions.

The fixed ball design resolves the issues of high torque and valve seat wear under high-pressure and large-diameter working conditions, ensuring the valve's low operating torque, long service life and high reliability.

Flange connection ensures the stability and ease of connection.

Design specification: