Buried Type Corrugated Compensator

BrandLanphan
ColorCustomized
OriginZhengzhou, Henan, China
Nominal diameterDN32-DN1600
Pressure grade0.1Mpa-4.0Mpa
Design temperature-20℃~450℃

Product Description

Buried type corrugated compensator, who could be called axial externally pressurized expansion joint /bellows, is composed of internal tube, external tube, corrugation - the affiliated pressure bearing component, end links & other components required. It is a kind of corrugated compensator, which is an equipment to compensate dimensional change caused by thermal expansion or mechanical vibration of pipeline/conduit/vessel through corrugated compensator's elastic component. Based on above, it can decrease the deforming stress exerted on pipeline and increase service life of pipeline. This compensator works mainly through stretching the corrugation to absorb the axial displacement caused by tensile force within pipeline. It has some outstanding main characteristics, such as large compensation dosage, good thermal insulation, easy elimination of residual medium & etc.. Lanphan's Buried type corrugated compensator, satisfying the need of large compensation dosage, high pressure and resistance of corrosion, fatigue and abrasion, has been widely used in pipeline connection of heat-supply pipe network, metallurgy, power plant, industrial equipment manufacturing and engineering pipes. The corrugations bearing external pressure with better performance of sealing and buckling resistance could absorb large displacement.


Structure:Buried type corrugated compensator has three patterns of structure, simplex, complex and bidirectional type. Corrugations in all of the three are equipped within external tube and its protection.


Connection type: Corrugated compensator has two kinds of connection type, welded connection & flange connection.


Buried type corrugated compensator can be used together with guide cylinder (lining sleeve), draw rod, gas vent or drainage exit in practice.

Differences from Axial internally pressurized corrugated compensator:

  1. Medium pass through the externally pressurized compensator outside corrugation, while through internally pressurized compensator within corrugation.
  2. The former works through stretching the corrugation to absorb thermal expansion of pipeline, while the latter through compressing.
  3. The former is mainly applied to axial displacement compensation, while besides the axial displacement compensation, the latter also could compensate lateral/resultant displacement of axial and lateral, as well as angular displacement.
  4. Never cut external tube of the former from which medium would happen to leakage, while external tube (add based on requirement) of the latter could be cut to see the condition of corrugation.

Specifications

Nominal diameter: DN32-DN1600

Pressure grade:0.1Mpa-4.0Mpa

Axial compensation dosage:18mm-400mm

Design temperature:-20℃~450℃

Material: SS304, SS321, SS316L, etc..

Product standard

Corrugated compensator standard number: GB/T 12777-2008

Lanphan corrugated compensator also could meet ASME, DIN, JIS, AS/NZS & etc..

Nominal diameter
DN
mm
fatigue fracture time
axial compensation dosage
X
mm
axial
rigidity
K
N/mm
active
area
A
cm²
radial max
boundary dimension
H
mm
connecting pipe
ends size
d*S(mm)
total length
L(mm)
total weight
W(kg)
1500 3000 15000 flange connection flange connecting pipe flange connecting pipe
32 18 15 11 423 23 240 Φ 38x3.5 338 328 13 10
36 30 21 212 479 469 15 12
54 45 32 141 625 915 17 14
40 27 23 16 282 37 250 Φ45x3.5 413 403 15 13
55 46 32 141 630 620 16 14
82 69 48 94 850 840 18 16
50 37 31 21 286 55 270 Φ57x3.5 432 422 19 14
73 62 42 143 654 644 23 18
110 93 63 95 877 867 27 22
65 37 31 21 286 81 290 Φ 73x4 488 476 25 19
73 62 42 143 756 744 31 25
110 93 63 95 1031 1019 36 30
80 48 41 28 278 121 308 Φ89x4 506 494 28 22
96 82 56 139 769 777 36 30
144 123 84 93 1085 1063 45 39
100 56 47 32 256 180 336 Φ108x4 532 520 40 31
112 93 63 128 830 818 51 42
168 140 95 85 1133 1121 63 54
125 71 59 40 326 257 368 Φ133x4 606 594 54 44
142 119 81 163 964 952 70 60
213 178 121 108 1325 1313 87 77
150 80 67 45 320 479 438 Φ159x4.5 655 643 71 58
160 133 89 160 1041 1029 94 61
240 200 134 107 1432 1420 118 105
200 84 70 47 620 769 519 Φ 219x6 696 680 107 89
168 140 94 310 1137 1121 149 130
252 210   207 1581 1565 192 174

Working pressure:1.6MPa

Notes: flange connection is customizable as client requirements, national standard, ministerial standard or other standards are applicable.

Application

Buried type corrugated compensator is widely used in petroleum, chemical industry, steel, metallurgy, machinery, transportation, shipping, wharf, construction, rubber, paper making, spinning, electric & heat supply, pharmacy, medical & other industries.

Our Service

Pre-Sales Service

  1. According to product’s using condition, technicians will offer rationalization;
  2. Provide detailed product performance specification;
  3. Provide professional quoted price;
  4. Provide 24-hour technical consulting reply.

In-Sales Service

  1. Begin to supervise from raw material, its qualified rate can reach to 100%;
  2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
  3. Provide product’s inspection record of key junctures to customers;
  4. Provide production schedule photos to customers at regular intervals;
  5. Package and transport products strictly accordance with export standard.

After-Sales Service

  1. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
  2. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
  3. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
  4. If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
  5. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information.

FAQ

  1. What’s the max pressure of corrugated compensator?
    4.0MPa.
  2. What diameters can you produce?
    From DN32 to DN1600.
  3. Product will be tested? Can you provide pressure test report?
    Yes, we can provide pressure test report.
  4. Can you provide raw material detection proof?
    Yes, we can.
  5. Can you do flaw detection?
    Yes, we can.(you need to tell us in advance).
  6. Can you provide installation manual?
    Yes, we can.

Packaging & Shipping

Wrap film wrapping to protect product from scratch and dust.

Fumigation-free wooden case reinforced.

Advantages

  1. We have 12, 000 ton hydraulic equipment, to make sure one-time forming of high pressure products.
  2. We have professional flaw detection team, real time monitoring product quality.
  3. Supervise every production procedure and every detail.
  4. Sufficient raw material storage, deliver products in time.
  5. Cooperate with universities and colleges, guaranteed advancement of product technology.
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