Malleable Iron 340 Conical Joint Union BSPT Thread

Size: 1/4”-4”
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

We’re here to help:
Easy ways to get the answers you need.

Product Description

Products Details

Malleable Iron 340 Conical Joint Union. Conical Joint Union is a kind of union with conical seat. Compare with flat seat union, there is not a gasket in the conical joint union. Conical joint union is a malleable iron fitting used in pipes or piping systems. It consists of two pipes or tubes joined together at an angle, usually forming a tapered connection. This type of union makes it easy to connect and disconnect pipes or pipes, usually without the need for additional tools or complicated procedures.


Size L(mm) PCS/CTN.
1/2″ 47 180
3/4″ 51.5 120
1″ 57 88
1-1/4″ 65 56
1-1/2″ 71 36
2″ 79 28
2-1/2″ 85.5 12
3″ 94.5 10
4″ 110.5 6

The parts of Flat Seat Union M/F :

Conical joint union, also be called taper union. It usually consist of two parts: a male end and a female end. The male end has a tapered shape that fits the female end, creating a strong connection when they are joined together. These couplings are typically used in applications where pipes need to be easily assembled or disassembled for maintenance, repair or modification without affecting the integrity of the entire system.

The advantage of conical joint union or taper union:

1. Easy to assemble: conical joint union design allows easy connection and disassembly without complex tools, making installation and maintenance simpler.

2. Secure Fit: The tapered design creates a tight fit between the male and female parts, ensuring a secure connection that reduces the risk of leakage or disconnection.

3. Versatility: Due to their tapered design, these fittings can accommodate misaligned pipes or tubes to an extent, allowing for installation flexibility.

4. Maintenance and repair: They facilitate quick access to connected components, making repairs, replacements or modifications more convenient without disrupting the entire system.

5. Reusable: Tapered fittings are often reusable, allowing for multiple installations and removals without compromising their effectiveness or integrity.

6. Various Applications: They are suitable for use in pipes, fluid handling systems and wherever connections need to be strong but easily detachable if necessary.

These advantages make tapered unions a practical choice in situations where frequent assembly, disassembly or maintenance of piping systems is required.