Steel‑sheathed, externally pressurized, directly buried expansion joint

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Category:

Thermal Pipeline Compensator

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Instructions for Use:

This product consists of two working bellows that withstand external pressure, one balancing bellows that also withstands external pressure, as well as structural components such as end tubes, connecting pipes, outer tubes, and end ring assemblies.

A compensator primarily used to absorb axial displacement and balance the thrust generated by bellows pressure.

Model Example:

Product Selection Parameter Table (1)

Working pressure: 1.6 MPa

Serial Number	Product Code	Nominal Diameter (mm)	Maximum radial dimension (mm)	Axial Compensation Amount (mm)	Axial stiffness (N/mm)	Applicable Temperature (°C)	End pipe size (mm)	Product Length (mm)
1	16ZHQWP600×6/6-J	DN600	1060	160	990	-20°C to 300°C	Φ630×10	2200
2	16ZHQWP600×12/12-J	DN600	1060	320	500	-20°C to 300°C	Φ630×10	3200
3	16ZHQWP700×6/6-J	DN700	1180	160	1070	-20°C to 300°C	Φ720×10	2200
4	16ZHQWP700×12/12-J	DN700	1180	320	535	-20°C to 300°C	Φ720×10	3200
5	16ZHQWP800×6/6-J	DN800	1300	160	1152	-20°C to 300°C	Φ820×12	2200
6	16ZHQWP800×12/12-J	DN800	1300	320	576	-20°C to 300°C	Φ820×12	3200
7	16ZHQWP900×6/6-J	DN900	1400	160	1240	-20°C to 300°C	Φ920×12	2200
8	16ZHQWP900×12/12-J	DN900	1400	320	620	-20°C to 300°C	Φ920×12	3200
9	16ZHQWP1000×6/6-J	DN1000	1580	180	1054	-20°C to 300°C	Φ1020×12	2400
10	16ZHQWP1000×12/12-J	DN1000	1580	360	527	-20°C to 300°C	Φ1020×12	3500
11	16ZHQWP1200×6/6-J	DN1200	1880	180	1208	-20°C to 300°C	Φ1220×14	2400
12	16ZHQWP1200×12/12-J	DN1200	1880	360	604	-20°C to 300°C	Φ1220×14	3500
13	16ZHQWP1400×6/6-J	DN1400	2180	180	1366	-20°C to 300°C	Φ1420×14	2400
14	16ZHQWP1400×12/12-J	DN1400	2180	360	683	-20°C to 300°C	Φ1420×14	3500
15	16ZHQWP1600×6/6-J	DN1600	2480	180	1524	-20°C to 300°C	Φ1620×16	2400
16	16ZHQWP1600×12/12-J	DN1600	2480	360	762	-20°C to 300°C	Φ1620×16	3500
17	16ZHQWP1800×6/6-J	DN1800	2780	180	1678	-20°C to 300°C	Φ1820×16	2400
18	16ZHQWP1800×12/12-J	DN1800	2780	360	839	-20°C to 300°C	Φ1820×16	3500

Product Selection Parameter Table (Part 2)

Working pressure: 2.5 MPa

Serial Number	Product Code	Nominal Diameter (mm)	Maximum radial dimension (mm)	Axial Compensation Amount (mm)	Axial stiffness (N/mm)	Applicable Temperature (°C)	Takeover size (mm)	Product Length (mm)
1	25ZHQWP600×6/6-J	DN600	1060	160	1344	-20°C to 300°C	Φ630×12	2200
2	25ZHQWP600×12/12-J	DN600	1060	320	672	-20°C to 300°C	Φ630×12	3200
3	25ZHQWP700×6/6-J	DN700	1180	160	1416	-20°C to 300°C	Φ720×12	2200
4	25ZHQWP700×12/12-J	DN700	1180	320	708	-20°C to 300°C	Φ720×12	3200
5	25ZHQWP800×6/6-J	DN800	1300	160	1504	-20°C to 300°C	Φ820×14	2200
6	25ZHQWP800×12/12-J	DN800	1300	320	752	-20°C to 300°C	Φ820×14	3200
7	25ZHQWP900×6/6-J	DN900	1400	160	1600	-20°C to 300°C	Φ920×16	2200
8	25ZHQWP900×12/12-J	DN900	1400	320	800	-20°C to 300°C	Φ920×16	3200
9	25ZHQWP1000×6/6-J	DN1000	1580	180	1696	-20°C to 300°C	Φ1020×18	2400
10	25ZHQWP1000×12/12-J	DN1000	1580	360	848	-20°C to 300°C	Φ1020×18	3500
11	25ZHQWP1200×6/6-J	DN1200	1880	180	1946	-20°C to 300°C	Φ1220×20	2400
12	25ZHQWP1200×12/12-J	DN1200	1880	360	972	-20°C to 300°C	Φ1220×20	3500
13	25ZHQWP1400×6/6-J	DN1400	2180	180	2668	-20°C to 300°C	Φ1420×22	2400
14	25ZHQWP1400×12/12-J	DN1400	2180	360	1334	-20°C to 300°C	Φ1420×22	3500
15	25ZHQWP1600×6/6-J	DN1600	2480	180	4046	-20°C to 300°C	Φ1620×24	2400
16	25ZHQWP1600×12/12-J	DN1600	2480	360	2023	-20°C to 300°C	Φ1620×24	3500
17	25ZHQWP1800×6/6-J	DN1800	2780	180	4956	-20°C to 300°C	Φ1820×26	2400
18	25ZHQWP1800×12/12-J	DN1800	2780	360	2478	-20°C to 300°C	Φ1820×26	3500