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Introduction to SSQ-2 Tubular Telescopic Device

Casing type expansion joint is also called expansion joint, expansion joint and compensator. The sleeve type telescopic device can be axially retracted within a certain range, and can also overcome the deviation caused by the different axial directions of the pipe butt joint within a certain angle. It can greatly facilitate the installation and disassembly of the valve pipe. It can be freely retracted within the allowable expansion amount of the pipe, and once it exceeds its expansion amount, it plays a limiting role to ensure the smooth operation of the pipe.

Detailed Description of SSQ-2 Tubular Telescopic Device

1. Sleeve type expansion device This product provides great convenience for the installation and replacement of various water supply and drainage pipelines, water towers, pumps, water meters, and valves, and plays a good regulatory role in the expansion and contraction of long-distance pipelines due to temperature differences.

2. {Full Name of the Enterprise} - The manufacturer's innovative pipe production sleeve type expansion joint. The internal pipes of this product are divided into three types: cast iron (HT), galvanized (DX), and steel (SF). The working pressure is divided into PN6, PN10, and PN16.

3. Before installing the sleeve type telescopic device, loosen the pressure plate bolts, pull the product to the installation length, and then tighten it using the diagonal method. Do not press it sideways. If it is used overhead, install corresponding fixing brackets at both ends.

4. The flange connection of the sleeve type expansion joint adopts GB4216.3-4126.5 standard.

5. If other specifications are selected, they can be produced separately.

Connection Instructions for SSQ-2 Tubular Telescopic Device

There are two types of flange connection and welding, and welding is generally used for directly buried expansion joints (non trench and well installation).

Precautions for Installation of SSQ-2 Tubular Telescopic Device

1. Before installing a sleeve type expansion joint, its model, specification, and pipeline configuration should be checked to ensure that they meet the design requirements.

2. For telescopes with inner sleeves, attention should be paid to making the direction of the inner sleeve consistent with the direction of media flow, and the hinge rotation plane of hinge type telescopes should be consistent with the displacement rotation plane.

3. For telescopes that require "cold tightening", the auxiliary components used for pre deformation of sleeve type telescopes should not be removed until the pipeline is installed.

4. It is strictly prohibited to use the method of deformation of the expansion joint to adjust the installation tolerance of the pipeline, in order to avoid affecting the normal function of the expansion joint, reducing its service life, and increasing the load on the pipe system, equipment, and supporting components.

5. During the installation of sleeve type telescopes, it is not allowed to splash welding slag onto the surface of the wave casing, and it is not allowed to suffer other mechanical damage to the wave casing.

6. After the installation of the telescopic tube system, the yellow auxiliary positioning components and fasteners used for installation and transportation on the telescopic tube should be removed as soon as possible, and the limit device should be adjusted to the specified position according to the design requirements, so that the tube system has sufficient compensation capacity under environmental conditions.

7. All moving components of the sleeve type telescopic device shall not be blocked or restricted by external components, and the normal operation of each moving part shall be ensured.

8. During the hydrostatic test, the secondary fixed pipe rack at the end of the pipeline equipped with a telescopic sleeve should be reinforced to prevent the pipeline from moving or rotating. For expansion joints and their connecting pipes used for gaseous media, it is important to note whether temporary supports need to be added during water filling. The 96 chloride ion content of the water cleaning solution used for hydrostatic testing shall not exceed 25 PPM.

Technical Parameters of SSQ-2 Tubular Telescopic Device

 

Nominal diameter DN(mm)	Minimum length (mm)	Installation length (mm)	Maximum length (mm)	Expansion and contraction amount
40	130	150	170	40
50	135	155	175	40
65	150	175	200	50
80	170	200	230	60
100	170	205	240	70
125	190	225	260	70
150	210	250	290	80
200	220	260	300	80
250	235	275	315	90
300	235	280	325	90
350	250	295	340	90
400	260	305	350	90
450	260	305	350	90
500	270	315	360	100
600	280	330	380	100
700	300	350	400	100
800	330	380	430	100
900	330	380	430	100
1000	350	400	430	100
1200	350	400	450	100
1400	390	445	450	110
1600	410	465	500	110
1800	430	485	520	110
2000	450	510	540	120
2200	480	545	570	130
2400	500	570	610	140
2600	540	615	640	150
2800	580	660	690	160
3000	650	750	740	200