fixed ball valve

Product overview:

Fixed ball valves are a new generation of high-performance ball valves. Their strength, safety, and resistance to harsh environments are specially considered in their design, making them suitable for various corrosive and non-corrosive media. Compared to floating ball valves, during operation, the force exerted by the upstream fluid pressure on the ball is entirely transferred to the bearings, preventing the ball from moving towards the valve seat. Therefore, the valve seat does not bear excessive pressure, resulting in lower torque, less valve seat deformation, stable sealing performance, and a longer service life. They are suitable for high-pressure, large-diameter applications and are widely used in industries such as petrochemicals, coal chemicals, nuclear power, aerospace, natural gas, electric power, metallurgy, and food processing.

Product parameters:

Nominal diameter: DN50-DN1600/ 2"-64"

Pressure rating: PN16-PN420 / CL 150-CL 2500

Working temperature: -196℃-800℃ (or according to customer requirements)

Connection methods: flange type, welding type

Sealing methods: soft seal, hard seal

Medium used: Natural gas, liquefied petroleum gas, coal gas, oil, water, steam

Product standards:

design standards	GB	API	ASME
design standards	GB/T22237	API6D	ASME B16.34
Structure length	GB/T12221	API6D	ASME B16.10
connecting flange	GB/T9113, JB/T 79	ASME B16.5	ASME B16.5
Butt welding end	JB/T 12224	ASME B16.25	ASME B16.25
Testing and Inspection	GB/T13927, JB/T 9092	API6D	API598

Key component materials:

●Valve body: Carbon steel, stainless steel, alloy steel, duplex steel, etc.

●Valve seat: Soft seal PTFE, PPL, PEEK

●Metal sealant spraying: STL, WC, Ni60, etc.

● Valve ball: Stainless steel, duplex steel, etc.

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Product Details

Features:

Reliable sealing:

The valve adopts a spring-loaded valve seat assembly structure, which can ensure flexible sealing and opening/closing without jamming even when there are large fluctuations in pressure and temperature.

High-volume design:

The valve body adopts a full-bore design, which has strong flow capacity, low flow resistance, and facilitates pipeline cleaning.

Locking device:

The locking device design ensures that the valve is in the correct open/close position, preventing accidental operation.

Fireproof structure:

In the event of a fire, once the valve seat is burned, the ball will come into direct contact with the metal surface of the valve body, thereby preventing a large amount of media from leaking from the burned valve seat.

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