Malleable Iron 341 Conical Joint Union M/F BSPT Thread

Size: 1/2”-2”
Material: BS EN 1562,EN-GJMB-350-10,KTH350-10
Dimension: BS EN 10242
Thread: ISO 7-1,BS 21,BSPT
Pressure Rating: PN16/PN25
Surface Treatment:Hot-dip Galvanized,Electro Galvanized,Black
Certificate: UL Listed / FM Approved / NSF 61
Application: Fire Protection,Waterworks,HVAC,Plumbing,GAS,Irrigation,or other piping systems

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Product Description

Products Details

Malleable Iron 341 Conical Joint Union M/F. The “Conical Joint Union M/F” refers to a specific type of fitting used in plumbing or piping systems. The “M/F” stands for male and female. Male end means the external threaded and Femal end means internal threaded. The Conical Joint Union M/F can connect the two pipes which one is external threaded and the other one is internal threaded.


Size L(mm) PCS/CTN.
1/2″ 65 140
3/4″ 71.5 120
1″ 79 80
1-1/4″ 90 40
1-1/2″ 96 32
2″ 107 20

The production process:

Polishing is a finishing process used to enhance the surface of the pipe fittings by smoothing it to create a reflective or smoother appearance. It involves the use of abrasives, compounds, or polishing tools to remove defects, scratches, oxidation, or other surface irregularities. In pipe fitting production, polishing is often performed after the machining or manufacturing process to improve the appearance, remove any marks left by the machining tools, and create a smooth, reflective surface.

Our advantage in Polishing process:

Polishing can be done manually using tools such as polishing cloths, abrasive pastes or polishes, and polishing wheels, or it can be done using automated machinery designed specifically for polishing purposes. The castings obtained after shakeout treatment must first be surface polished to obtain a semi-finished product with a smooth surface. We use a centrifugal polishing machine and use steel balls as polishing materials. In the centrifugal polishing machine, the steel balls and the castings are repeatedly ground to smooth the appearance.