AMI Buttweld fittings are made of high quality materials through earthing and precision process, conform to ANSI B16.9, ASTM A234,WPB Standards,JIS 2311 and DIN 2605.

AMI Buttweld fittings have all specification from 1/8”to 36″ 

Concentric and Eccentric Reducers, Equal and Reducing Tees,45° and 90° EIbows,ButtweId Caps and StubEnds, are all part of the comprehensive range of Buttweid fittings carried by AMI Sdn Bhd 

All our Buttweld fittings conform to relevant material and dimensional specifications and can be supplied complete with material certificates. 

A pipe fitting is defined as a part used in a piping system, to change direction or function, which is mechanically joined to the system.

Types and applications of Buttweld Fittings

● Welding a fitting to the pipe means it is permanently leakproof.

● The continuous metal structure formed between pipe and fittings adds strength to the system.

● The smooth inner surface and gradual directional changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion.

● welded system utilizes a minimum of space.

APPLICABLE STANDARDS

●   AMI Buttweld fittings are manufactured, as a rule, in accordance with ASME standards B16.9 and B16.28 for dimensions, shapes, and tolerances.

●  Manufacturing methods, quality and so on are based upon ASTM A234, A403, and A420 specifications.

●  AMI has standardized dimensions and dimensional tolerances for Buttweld fittings of 50 inches and larger as no internationally recognized standards exist.

ASME STANDARDS 

B16.9       Wrought Steel Buttweld fittings 
B16.28    Wrought Steel Buttweld Short Radius and Returns 
B16.25    Buttweld Ends 
B36.10    Welded and Seamless Wrought Steel Pipe 
B36.19    Stainless Steel Pipe 

ASTM STANDARDS 
A234      Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperatures Service 

MSS STANDARDS 
SP 43    Wrought Stainless Steel 8uttweld Fittings 
SP-7S    High Test Wrought Buttweld Fittings