Socket welding fittings ANSI B16.11: reducer insert

Diam. nominale Nominal pipe size	TIPO TYPE	M (1)		N (1)		K (1)		L (1)
		mm	inches	mm	inches	mm	inches	mm	inches
		mm	inches	mm	inches	mm	inches	mm	inches
1/2" x 3/8"	1	21.6	0.850	11	0.4	24	0.94	20	0.78
1/2" x 1/4"	2	21.6	0.850	7.5	0.30	15.5	0.62
1/2" x 1/8"	3	21.6	0.850	5.5	0.22	15.5	0.62	7	0.28
3/4" x 1/2"	1	26.9	1.060	14	0.56	27	1.06	22	0.87
3/4" x 3/8"	2	26.9	1.060	11	0.44	15.5	0.62
3/4" x 1/4"	3	26.9	1.060	7.5	0.30	15.5	0.62	7	0.28
3/4" x 1/8"	3	26.9	1.060	5.5	0.22	15.5	0.62	7	0.28
1" x 3/4"	1	33.6	1.325	19	0.75	28.5	1.12	23	0.91
1" x 1/2"	2	33.6	1.325	14	0.56	24	0.94
1" x 3/8"	3	33.6	1.325	11	0.44	23	0.90	7	0.28
1" x 1/4"	3	33.6	1.325	7.5	0.30	24	0.94	7	0.28
1 1/4" x 1"	1	42.4	1.670	24.5	0.97	31.5	1.25	24.5	0.97
1 1/4" x 3/4"	2	42.4	1.670	19	0.75	22	0.87
1 1/4" x 1/2"	3	42.4	1.670	14	0.56	24.5	0.97	7	0.28
1 1/2" x 1 1/4"	1	48.5	1.970	32.5	1.28	33.5	1.31	27	1.06
1 1/2" x 1"	2	48.5	1.910	24.5	0.97	33.5	1.31
1 1/2" x 3/4"	3	48.5	1.910	19	0.75	22	0.87	8	0.32
1 1/2" x 1/2"	3	48.5	1.910	14	0.56	26	1.03	7	0.28
2" x 1 1/2"	2	60.9	2.400	38	1.50	27	1.06
2" x 1 1/4"	3	60.9	2.400	32.5	1.28	25.5	1.00	8	0.32
2" x 1"	3	60.9	2.400	24.5	0.97	25.5	1.00	8	0.32
2" x 3/4"	3	60.9	2.400	19	0.75	25.5	1.00	8	0.32
2" x 1/2"	3	60.9	2.400	14	0.56	29.5	1.16	7	0.28
2 1/2" x 2"	1	79.6	2.900	49	1.93	41.5	1.63	30	1.19
2 1/2" x 1 1/2"	3	79.6	2.900	38	1.50	27.5	1.09	8	0.32
2 1/2" x 1 1/4"	3	79.6	2.900	32.5	1.28	29.5	1.16	8	0.32
2 1/2" x 1"	3	79.6	2.900	24.5	0.97	29.5	1.16	8	0.32
3" x 2 1/2"	1	89.6	3.530	59	2.32	46	1.81	33.5	1.32
3" x 2"	3	89.6	3.530	49	1.93	41.5	1.63	10	0.40
3" x 1 1/2"	3	89.6	3.530	38	1.50	42	1.66	8	0.32
3" x 1 1/4"	3	89.6	3.530	32.5	1.28	42.5	1.67	8	0.32

3" x 1"	3	89.6	3.530	24.5	0.97	39	1.53	8	0.32

(1) Dimensions not listed in ANSI B 16.11-1980 and BS 3799-1974 may vary according to the manufacturer.

REDUCER INSERT S.W.