Threaded Flange

Weld-Free Threaded Pipe Flange | For Explosion-Proof Small-Bore Piping

A threaded pipe flange features internal taper threads to screw onto threaded pipes, no welding required for connection. It is the ideal flange threaded type for sites where hot work is forbidden, such as flammable gas and fuel pipelines.

 

As a reliable flange supplier, Pengrun offers a large selection of flanges made from carbon steel, stainless steel, duplex stainless steel, alloy steel, and special steels. We can produce flanges conforming to various international standards, such as ASME/ANSI, EN, DIN, JIS, GOST, GB, etc.

Core Advantages of Pengrun Threaded Flanges

No welding, explosion-safe

Quick disassembly

Tight seal for small low-pressure lines

Threaded reducing type for size change

Multiple material options

Full sizes with custom machining

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    Applications of Threaded Flange

    FUEL & GAS UTILITY

    Small-bore flammable gas non-weld connection lines

    FIRE PROTECTION

    Low-pressure fire water pipeline assembly

    HVAC & COMPRESSED AIR

    Cooling water and instrument air piping

    WATER TREATMENT

    General low-pressure clean water pipelines

    CHEMICAL UTILITY LINES

    Explosion-proof small-bore auxiliary piping

    PHARMACEUTICAL PLANT

    Corrosion-resistant stainless threaded piping

    FAQs

    Where to use threaded pipe flange?

    It applies to small-bore low-pressure pipelines where welding is banned, such as gas, fire protection and instrument air systems.

    What materials can you produce for threaded flange?

    We can produce carbon steel,stainless steel,duplex stainless steel,alloy steel and special steel for threaded flanges.

    What is threaded reducing flange used for?

    It connects pipes with two different diameters without extra reducers, simplifying pipeline layout.

    Can threaded flange replace weld neck flange for high-pressure steam?

    No. Threaded joints easily leak under high temperature & vibration; weld neck flange is required for high-pressure critical piping.

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