Didtek Full Bore Bolt-Sealed Flange Forged F11 Floating Ball Valve

Product Overview

This is a high-performance industrial ball valve specially designed for harsh working conditions

Didtek Full Bore Bolt-Sealed Flange Forged F11 Floating Ball Valve

Core features

Floating ball valve Working principle: The ball is "floating" within the valve cavity and is held by two valve seats upstream and downstream. When the valve is closed, under the push of the medium pressure, the ball will undergo a slight displacement and tightly press against the valve seat at the outlet end, thus forming a seal.

Features: Relatively simple structure, good sealing performance, and a common form of medium and small diameter ball valves.

Full bore Design: The diameter of the flow channel inside the valve is basically the same as the nominal diameter of the connected pipe, forming an unobstructed flow channel.

Advantages: Minimal pressure loss; Low fluid resistance, energy-saving. Easy pipeline cleaning: Allows the pipe cleaner (PIG) to pass through, facilitating maintenance.

No liquid accumulation zone: Prevents the medium from accumulating inside the valve, especially suitable for viscous or easily solidifying fluids.

Bolt-sealed flange

Design: It refers to the connection between the valve body and the valve cover using flanges and bolts, and sealing with gaskets.

Advantages

Solid structure: Strong pressure-bearing capacity and high safety.

Easy to maintain: Disassembly and reassembly are convenient, and internal parts can be replaced easily.

Reliable sealing: It provides a strong sealing guarantee at the middle flange position.

Forging

Manufacturing process: The main pressure-bearing components of the valve (valve body, valve cover, and ball) are manufactured by forging process.

Advantages

Excellent mechanical properties: Forging can eliminate internal defects in castings (such as pores and sand holes), making the material structure more compact, thereby achieving higher strength, better toughness and fatigue resistance.

Reliable quality: Suitable for critical working conditions with high pressure, high temperature and high danger.

F11

Material grade: This is the material code in ASTM A182 standard, representing forged chromium-molybdenum alloy steel.

Performance features

High-temperature strength: It contains chromium (Cr) and molybdenum (Mo) elements, enabling it to maintain good mechanical strength and creep resistance at high temperatures (typically up to approximately 550°C - 600°C).

Hydrogen corrosion resistance: It can effectively resist hydrogen corrosion in high-temperature and high-pressure hydrogen environments commonly found in the petrochemical and power industries.

Application level: It is the main material for medium, high-temperature and high-pressure valves.

Summary of Core Features

High strength and high reliability: The forged valve body and the flange in the bolt connection ensure the structural integrity and safety of the valve under high-pressure conditions.

Outstanding fluid performance: The full bore design minimizes pressure loss and is suitable for systems with strict requirements for flow rate and pressure drop.

Adaptability to harsh working conditions: The F11 chromium-molybdenum steel material makes it an ideal choice for high-temperature and high-pressure applications, with performance far exceeding that of ordinary carbon steel (WCB) or stainless steel (304/316) valves.

Excellent sealing performance: The floating ball design achieves self-tightening sealing with the assistance of medium pressure, ensuring the tightness of the closing.

Convenient maintenance: The bolt-connected flange structure makes the inspection, maintenance and replacement of the internal parts of the valve simple.

Typical application fields

This valve is specially designed for the following harsh industrial environments:

Thermal power plant: main steam system, feedwater system, fuel oil system.

Petrochemical industry: Oil refining units, catalytic cracking units, high-temperature oil products and process gas pipelines.

Coal chemical industry: Pipelines for high-temperature and hydrogen-containing media such as syngas and shift gas.

Other industries: Any industrial fluid control system that needs to withstand high temperatures and high pressures.

Conclusion

Full Bore Bolt-Sealed Flange Forged F11 Floating Ball Valve is an industrial valve solution representing high performance, high reliability and long service life. It integrates the most suitable designs, materials and processes for harsh environments, and is an indispensable fluid control device in key process industries such as power and petrochemicals.

Design specification: