There are basically two types of reducers, concentric & eccentric. Concentric reducers are used in vertical installations. Eccentric reducers are used in horizontal pipelines where there is change of bore to enable complete drainage of material without any hold up.
Concentric Reducers
DN |
DN1 |
L |
Reference |
|
40 |
25 |
100 |
NSPR 1.5/1 |
|
50 |
25 |
100 |
NSPR 2/1 |
50 |
40 |
100 |
NSPR 2/1.5 |
80 |
25 |
125 |
NSPR 3/1 |
80 |
40 |
125 |
NSPR 3/1.5 |
80 |
50 |
125 |
NSPR 3/2 |
100 |
25 |
150 |
NSPR 4/1 |
100 |
40 |
150 |
NSPR 4/1.5 |
100 |
50 |
150 |
NSPR 4/2 |
100 |
80 |
150 |
NSPR 4/3 |
150 |
25 |
200 |
NSPR 6/1 |
150 |
40 |
200 |
NSPR 6/1.5 |
150 |
50 |
200 |
NSPR 6/2 |
150 |
80 |
200 |
NSPR 6/3 |
150 |
100 |
200 |
NSPR 6/4 |
225 |
25 |
250 |
NSPR 9/1 |
225 |
40 |
250 |
NSPR 9/1.5 |
225 |
50 |
250 |
NSPR 9/2 |
225 |
80 |
250 |
NSPR 9/3 |
225 |
100 |
250 |
NSPR 9/4 |
225 |
150 |
250 |
NSPR 9/6 |
300 |
25 |
300 |
NSPR 12/1 |
300 |
40 |
300 |
NSPR 12/1.5 |
300 |
50 |
300 |
NSPR 12/2 |
300 |
80 |
300 |
NSPR 12/3 |
300 |
100 |
300 |
NSPR 12/4 |
300 |
150 |
300 |
NSPR 12/6 |
300 |
225 |
300 |
NSPR 12/9 |
400 |
25 |
350 |
NSPR 16/1 |
400 |
40 |
350 |
NSPR 16/1.5 |
400 |
50 |
350 |
NSPR 16/2 |
400 |
80 |
350 |
NSPR 16/3 |
400 |
100 |
350 |
NSPR 16/4 |
400 |
150 |
350 |
NSPR 16/6 |
400 |
225 |
350 |
NSPR 16/9 |
400 |
300 |
350 |
NSPR 16/12 |
450 |
25 |
375 |
NSPR 18/1 |
450 |
40 |
375 |
NSPR 18/1.5 |
450 |
50 |
375 |
NSPR 18/2 |
450 |
80 |
375 |
NSPR 18/3 |
450 |
100 |
375 |
NSPR 18/4 |
450 |
150 |
375 |
NSPR 18/6 |
450 |
225 |
375 |
NSPR 18/9 |
450 |
300 |
375 |
NSPR 18/12 |
600 |
50 |
400 |
NSPR 24/2 |
600 |
100 |
400 |
NSPR 24/4 |
600 |
150 |
400 |
NSPR 24/6 |
600 |
225 |
425 |
NSPR 24/9 |
600 |
300 |
425 |
NSPR 24/12 |
600 |
450 |
475 |
NSPR 24/18 |
Ecentric Reducers
DN |
DN1 |
L |
L1 |
Reference |
|
40 |
25 |
100 |
6 |
NSPRE 1.5/1 |
|
50 |
25 |
100 |
12 |
NSPRE 2/1 |
50 |
40 |
100 |
6 |
NSPRE 2/1.5 |
80 |
25 |
125 |
24 |
NSPRE 3/1 |
80 |
40 |
125 |
18 |
NSPRE 3/1.5 |
80 |
50 |
125 |
12 |
NSPRE 3/2 |
100 |
25 |
150 |
39 |
NSPRE 4/1 |
100 |
40 |
150 |
33 |
NSPRE 4/1.5 |
100 |
50 |
150 |
27 |
NSPRE 4/2 |
100 |
80 |
150 |
15 |
NSPRE 4/3 |
150 |
50 |
200 |
52 |
NSPRE 6/2 |
150 |
80 |
200 |
40 |
NSPRE 6/3 |
150 |
100 |
200 |
25 |
NSPRE 6/4 |
90° Bend Reducers
DN |
DN1 |
L |
L1 |
Type |
Reference |
|
40 |
25 |
150 |
125 |
A |
NSPBR 1.5/1 |
|
50 |
40 |
150 |
150 |
A |
NSPBR 2/1.5 |
80 |
50 |
150 |
150 |
A |
NSPBR 3/2 |
100 |
50 |
200 |
150 |
B |
NSPBR 4/2 |
100 |
80 |
200 |
175 |
B |
NSPBR 4/3 |
150 |
50 |
200 |
150 |
B |
NSPBR 6/2 |
150 |
80 |
250 |
175 |
B |
NSPBR 6/3 |
225 |
80 |
250 |
175 |
B |
NSPBR 9/3 |
300 |
80 |
300 |
175 |
B |
NSPBR 12/3 |
300 |
150 |
350 |
250 |
B |
NSPBR 12/6 |