We manufacture of butt weld pipe fittings to meet diverse material specification. Reducers be applied, to change from pipe diameter in one direction. Standard there are 2 possibilities, the concentric reducer, is usually used in vertical pipe lines, and the eccentric reducer that is used in horizontal pipe lines.
Types: Concentric & Eccentric Reducers

Dimensional Tolerances of Concentric and Eccentric Reducers ASME B16.9

Nominal Pipe Size	1/2 to 2½	3 to 3½	4	5 to 8	10 to 18	20 to 24	26 to 30	32 to 48
Outside Diameter at Bevel (D)	+ 1.6 - 0.8	1.6	1.6	+ 2.4 - 1.6	+ 4 - 3.2	+ 6.4 - 4.8	+ 6.4 - 4.8	+ 6.4 - 4.8
Inside Diameter at End	0.8	1.6	1.6	1.6	3.2	4.8	+ 6.4 - 4.8	+ 6.4 - 4.8
Overall Length (H)	2	2	2	2	2	2	5	5
Wall Thickness (t)	Not less than 87.5% of Nominal Wall Thickness

Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.

 

Available Materials

Stainless Steel: ASTM A 312, A 213, A 249, A 269, A 358, A 240, A 276
Type: 202, 304, 304L, 304H, 316, 316L, 316Ti, 321, 321H, 317, 317L, 310, 310S, 409, 410, 420, 430 etc. 

Carbon Steel: ASTM A 106, A 53, API A 5L Gr A, B, C, ASTM A 333, Gr 1 to 6 (IBR & NON IBR) 

Alloy Stel: ASTM A 335, GR P1, P2, P5, P9, P11, P22, P91 

Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy 904, Titanium, Tungston, SIlver Nickel, Zirconium, Palladium, Vanadium etc.

Copper Alloys: Aluminium, Copper, Brass & Gunmetal

Buttweld Fittings: ASTM A 403, A182, A 234, A 105, A 420, A 350 & LF2 etc. (IBR & NON IBR)