Double Flanged Limit Compensation Joint

Category Joint Tag valve

Double flanged limit compensation joint Double flange loose sleeve limit joint is composed of flange body, expansion flange, gland, limit screw, sealing ring and other parts. Once it exceeds its maximum expansion, it plays a limiting role, thus protecting valves, pumps and other equipment.

Nominal Diameter	DN50 – DN1200
Nominal Pressure	1.0/1.6 MPa
Applicable Temperature	0 ∼ 80^oC
Applicable Medium	Including sediment water, clean water, and oil products

Process Description

Ductile iron carbon steel is used as material to form the basic shape of the valve. The valve then goes through the process of casting, shot blasting treatment, stress-relief annealing, machining, powder coating, assembly, pressure testing, and packaging for storage. With a final inspection, the valve will be packaged and sent out.

Features:

The inner and outer sleeve can be freely extended to both ends
Convenient installation of valves and pipe fittings, resulting in time and installation cost
The deformation stress of pipe fittings can be eliminated
Compensation for pipe deformation
Eliminate the effects of earthquake, subsidence and other factors on the pipe
Good sealing effect, small telescopic resistance
Widely used in urban water, fire and high-rise building water supply and industrial water supply projects

Installation Dimensions Unit:mm

DN	B2F L	1.0 MPa			1.6 MPa
DN	B2F L	D	D1	n- φd	D	D1	n-φ d
50	300 ± 25	165	125	4 – φ19	165	125	4 – φ19
65	300 ± 25	185	145	4 – φ19	185	145	4 – φ19
80	300 ± 25	200	160	8 – φ19	200	160	8 – φ19
100	300 ± 25	220	180	8 – φ19	220	180	8 – φ19
125	300 ± 25	250	210	8 – φ19	250	210	8 – φ19
150	300 ± 25	285	240	8 – φ23	285	240	8 – φ23
200	300 ± 25	340	295	8 – φ23	340	295	12 – φ23
250	300 ± 25	395	350	12 – φ23	405	355	12 – φ28
300	370 ± 32.5	445	400	12 – φ23	460	410	12 – φ28
350	370 ± 32.5	505	460	16 – φ23	520	470	16 – φ28
400	370 ± 32.5	565	515	16 – φ28	580	525	16 – φ31
450	370 ± 32.5	615	565	20 – φ28	640	585	20 – φ31
500	370 ± 32.5	670	620	20 – φ28	715	650	20 – φ34
600	370 ± 32.5	780	725	20 – φ31	840	770	20 – φ37
700	370 ± 32.5	895	840	24 – φ31	910	840	24 – φ37
800	600 ± 65	1015	950	24 – φ34	1025	950	24 – φ40
900	600 ± 65	1115	1050	28 – φ34	1125	1050	28 – φ40
1000	600 ± 65	1230	1160	28 – φ37	1255	1170	28 – φ43
1200	600 ± 65	1455	1380	32 – φ40	1485	1390	32 – φ49

Materials of Main Components

No.	Part Name	Material
1	Outer Cover, expansion tube, pressure plate	Ductile iron carbon steel
2	Sealing ring	NBR/EPDM
3	Limit screw	Carbon steel galvanizing