Double-Sealed Directly Buried External Pressure Bellows Compensator

Keywords:

Category:

Thermal Pipeline Compensator

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Instructions for Use:

This product consists of structural components including a corrugated pipe that withstands external pressure, an outer tube, end rings, as well as sealing gland and packing.

This type of compensator is primarily used to absorb axial displacement and cannot withstand the thrust generated by bellows pressure; it is suitable for direct-buried applications.

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)	Inner Tube and Outer Tube Dimensions (mm)	Product Length (mm)
1	16ZHSZM300×100-J	DN300	480	100	294	−20°C to 300°C	Φ325×8	1600
2	16ZHSZM300×200-J	DN300	480	200	147	−20°C to 300°C	Φ325×8	2000
3	16ZHSZM350×100-J	DN350	550	100	412	−20°C to 300°C	Φ377×8	1600
4	16ZHSZM350×200-J	DN350	550	200	206	−20°C to 300°C	Φ377×8	2000
5	16ZHSZM400×130-J	DN400	600	130	452	−20°C to 300°C	Φ426×8	1600
6	16ZHSZM400×260-J	DN400	600	260	226	−20°C to 300°C	Φ426×8	2000
7	16ZHSZM500×130-J	DN500	700	130	466	−20°C to 300°C	Φ530×10	1600
8	16ZHSZM500×260-J	DN500	700	260	233	−20°C to 300°C	Φ530×10	2000
9	16ZHSZM600×150-J	DN600	850	150	590	−20°C to 300°C	Φ630×10	1800
10	16ZHSZM600×300-J	DN600	850	300	295	−20°C to 300°C	Φ630×10	2200
11	16ZHSZM700×150-J	DN700	950	150	634	−20°C to 300°C	Φ720×10	1800
12	16ZHSZM700×300-J	DN700	950	300	317	−20°C to 300°C	Φ720×10	2200
13	16ZHSZM800×150-J	DN800	1050	150	658	−20°C to 300°C	Φ820×12	1800
14	16ZHSZM800×300-J	DN800	1050	300	329	−20°C to 300°C	Φ820×12	2200
15	16ZHSZM900×150-J	DN900	1150	150	704	−20°C to 300°C	Φ920×12	1800
16	16ZHSZM900×300-J	DN900	1150	300	352	−20°C to 300°C	Φ920×12	2200
17	16ZHSZM1000×175-J	DN1000	1250	175	748	−20°C to 300°C	Φ1020×14	1800
18	16ZHSZM1000×350-J	DN1000	1250	350	374	−20°C to 300°C	Φ1020×14	2200
19	16ZHSZM1200×175-J	DN1200	1460	175	770	−20°C to 300°C	Φ1220×14	1800
20	16ZHSZM1200×350-J	DN1200	1460	350	385	−20°C to 300°C	Φ1220×14	2200
21	16ZHSZM1400×175-J	DN1400	1680	175	950	−20°C to 300°C	Φ1420×14	1800
22	16ZHSZM1400×350-J	DN1400	1680	350	475	−20°C to 300°C	Φ1420×14	2200
23	16ZHSZM1600×175-J	DN1600	1900	175	1344	−20°C to 300°C	Φ1620×16	1800
24	16ZHSZM1600×350-J	DN1600	1900	350	672	−20°C to 300°C	Φ1620×16	2200

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)	End pipe size (mm)	Product Length (mm)
1	25ZHSZM300 × 100-J	DN300	480	100	350	-20°C to 300°C	Φ325 × 10	1600
2	25ZHSZM300 × 200-J	DN300	480	200	175	-20°C to 300°C	Φ325 × 10	2000
3	25ZHSZM350 × 100-J	DN350	550	100	420	-20°C to 300°C	Φ377 × 10	1600
4	25ZHSZM350 × 200-J	DN350	550	200	210	-20°C to 300°C	Φ377 × 10	2000
5	25ZHSZM400 × 130-J	DN400	600	130	486	-20°C to 300°C	Φ426 × 10	1600
6	25ZHSZM400 × 260-J	DN400	600	260	243	-20°C to 300°C	Φ426 × 10	2000
7	25ZHSZM500 × 130-J	DN500	700	130	562	-20°C to 300°C	Φ530 × 10	1600
8	25ZHSZM500 × 260-J	DN500	700	260	281	-20°C to 300°C	Φ530 × 10	2000
9	25ZHSZM600 × 150-J	DN600	850	150	846	-20°C to 300°C	Φ630 × 12	1800
10	25ZHSZM600 × 300-J	DN600	850	300	423	-20°C to 300°C	Φ630 × 12	2200
11	25ZHSZM700 × 150-J	DN700	950	150	850	-20°C to 300°C	Φ720 × 12	1800
12	25ZHSZM700 × 300-J	DN700	950	300	425	-20°C to 300°C	Φ720 × 12	2200
13	25ZHSZM800 × 150-J	DN800	1050	150	870	-20°C to 300°C	Φ820 × 14	1800
14	25ZHSZM800 × 300-J	DN800	1050	300	435	-20°C to 300°C	Φ820 × 14	2200
15	25ZHSZM900 × 150-J	DN900	1150	150	932	-20°C to 300°C	Φ920 × 16	1800
16	25ZHSZM900 × 300-J	DN900	1150	300	466	-20°C to 300°C	Φ920 × 16	2200
17	25ZHSZM1000 × 175-J	DN1000	1250	175	1078	-20°C to 300°C	Φ1020 × 18	1800
18	25ZHSZM1000 × 350-J	DN1000	1250	350	539	-20°C to 300°C	Φ1020 × 18	2200
19	25ZHSZM1200 × 175-J	DN1200	1460	175	1246	-20°C to 300°C	Φ1220 × 20	1800
20	25ZHSZM1200 × 350-J	DN1200	1460	350	623	-20°C to 300°C	Φ1220 × 20	2200
21	25ZHSZM1400 × 175-J	DN1400	1680	175	1408	-20°C to 300°C	Φ1420 × 22	1800
22	25ZHSZM1400 × 350-J	DN1400	1680	350	704	-20°C to 300°C	Φ1420 × 22	2200
23	25ZHSZM1600 × 175-J	DN1600	1900	175	1938	-20°C to 300°C	Φ1620 × 24	1800
24	25ZHSZM1600 × 350-J	DN1600	1900	350	969	-20°C to 300°C	Φ1620 × 24	2200