Stepped Coupling

 

Where pipe ends of different outside diameters have to be connected, stepped couplings can be provided. The range is extensive and covers a vast array of pipe sizes and materials. The jointing of dissimilar materials, requiring different fastener torque values, is facilitated by the inclusion of a profile plate.

 

 

STEP COUPLINGS – FABRICATED SABS 719:1971 SABS:966 / ISO 2531:1991 / SABS 1223:1985 / SABS 62:1989 ISO 161:1978 / BS4772:1988 / ISO 160:1980 / BS534:1990
NOM BORE PIPE1 mm	NOM BORE PIPE2 mm	PIPE OD1 mm	PIPE OD2 mm	DESCRIPTION	L MIN mm	A1 mm	A2 mm	B mm	C mm	D x AVERAGE THICKNESS mm	MAX TEST PRESSURE MPa	APPROX. MASS kg
50	65	60.3	76.1	STEEL/STEEL	100	133	148	172	145	102 x 6.4	6.8	2.2
140	160	140	160	uPVC/uPVC	100	224	246	172	145	102 x 7.2	6.1	7.6
200	200	200	219	uPVC/STEEL	100	292	311	172	148	102 x 8.7	5.8	10.6
315	300	315	324	uPVC/STEEL	100	407	419	172	148	102 x 8.7	4.7	18.1
300	300	353	365	FC30/FC24	120	458	470	260	230	178 x 8.7	4.3	31.8
600	600	651	672	FC18/FC12	140	756	777	260	230	178 x 8.7	2.5	59.1
700	700	760	784	FC18/FC12	140	875	889	260	238	178 x 11.1	3.6	82.1
1000	1000	1062	1048	FC12/FC06	160	1177	1199	260	238	178 x 11.1	2	114.3

STEP COUPLINGS – FABRICATED SABS 719:1971 SABS:966 / ISO 2531:1991 / SABS 1223:1985 / SABS 62:1989 ISO 161:1978 / BS4772:1988 / ISO 160:1980 / BS534:1990
NOM BORE PIPE1 mm	NOM BORE PIPE2 mm	PIPE OD1 mm	PIPE OD2 mm	DESCRIPTION	L MIN mm	A1 mm	A2 mm	B mm	C mm	D x AVERAGE THICKNESS mm	MAX TEST PRESSURE MPa	APPROX. MASS kg
65	80	76.1	96	STEEL/FC	100	148	170	188	155	110	6.8	4
160	150	160	174	uPVC/FC18	100	246	266	190	157	112	5.8	11
150	200	177	232	FC/FC	100	270	324	190	158	112	5.4	17
250	250	273	318	STEEL/FC36	100	367	410	190	158	112	4.7	23
355	350	355	378	uPVC/DI	120	460	483	270	240	188	4.3	42
600	600	610	672	STEEL/FC18	150	714	776	270	240	188	2.5	73
700	750	711	762	STEEL/DI	150	815	877	270	244	188	2.4	105
1100	1100	1118	1188	FC/STEEL	160	1233	1303	276	254	194	1.9	159