Axial Type Corrugated Compensator

BrandLanphan
ColorCustomized
OriginZhengzhou, Henan, China
Nominal diameterDN15-DN4000
Pressure grade0.1Mpa-160Mpa
Axial compensation dosage18mm-400mm
Design temperature-20℃~450℃

Axial Type Corrugated Compensator
Product Description

Axial internal pressure type corrugated compensator, or axial internally pressurized expansion joint is a kind of corrugated compensator. It 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 on pipeline and increase service life of pipeline.


Structural material: The corrugated compensator can be made of metal and nonmetal. Usually, the material of metal one include austenitic stainless steel, corrosion resistant alloy & etc. while nonmetal one include PTFE, rubber and composite material.


Wall thickness: Refer to the wall thickness, there are thick-wall corrugated compensator and thin-wall corrugated compensator. The thick one is mostly used for pressure vessel to compensate vessel's own thermal deformation. In view of its little compensation dosage, only 1~2 waves needed with wall thickness in 3~22mm generally. For the thin one, corrugated compensator is used in the flexible part of pipeline. Its monolayer thickness is less than 3mm(The thickness of most stainless steel is 0.2~3mm). Since corrugated compensator used in pipeline requires compensation dosage as much as possible, wall thickness should be reduced in max to get higher flexibility under premise of satisfying pressure-bearing. Considering environmental corrosion, most corrugated compensator are made of stainless steel. If higher pressure-bearing is requested, thin wall multilayer stainless steel structure could be better.


Number of layer: According to the layer, corrugated compensator can be divided into single-ply bellows and multi-ply bellows. The manufacture of single-ply bellows is simple with low cost. It is often used in the condition of dead load together with displacement compensation. On the premise of satisfying design of pressure-bearing, compensation dosage, rigidity and fatigue life, single-ply bellows has better competitiveness. Multi-ply bellows(often more than 2 layers) are commonly used in crucial pipeline in the condition of alternating load. Compared with single-ply bellows, multi-ply one has less rigidity and better fatigue resistance under same pressure bearing.


Structure: Corrugated compensator also can be divided into two classes of simplex and complex type due to different structure. Both of them could weld draw rod if required. Draw rod will weaken the axial thrust caused by internal pressure in pipeline, while no such effect if no draw rod.


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


Product features: Axial internal type corrugated compensator can be assembled or disassembled easily with advanced design, rational construction in compact size. It has a series of outstanding characteristic, such as high & low temperature resistance, high pressure resistance, corrosion resistance, antifatigue, long service life, high pressure-bearing, large compensation dosage, axial recurrent motion bearing, excellent noise reduction & etc..

specifications

Nominal diameter:DN15-DN4000

Pressure grade:0.1Mpa-160Mpa

Axial compensation dosage:18mm-400mm

Design temperature:-20℃~450℃

Product standard

Corrugated compensator standard number: GB/T 12777-2008

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

DN
(mm)
bellows compensation
dosage
stiffness max size of
radial direction
shape
Bmm
total length
L
(mm)
product type
active area A
cm2
corrugation number
n
axial
direction
X0 mm
lateral
direction
Yo (mm)
angular
direction
θ± (°)
axial direction
N/mm
lateral direction
N/mm
angular direction
Nm/ (°)
connection type
adapter pipe
J
flange
F
corrugated compensator:design pressure Pd = 1.0Mpa(10Kgf/ cm2)fatigue life【 N 】=1000times design temperature t = 20℃
40 38 4 5.5 1.2 4 282 1214 14 145 230 240 TB
8 1.1 5 8 141 135 6.5 300 310
50 56 4 7.5 1.5 4 388 1790 20 157 250 260
8 15 6.5 8 194 189 7 340 350
65 79 4 9 1.5 4 422 2109 24 186 250 260
8 18 6.5 8 211 217 9 360 370
80 138 4 11 2 3 658 2715 28 219 354 270
8 22 8 6 329 320 13 364 380
100 155 4 12 2.3 3 698 3226 30 283 284 300
8 24 9.1 6 349 403 15 364 380
150 300 4 11 1.5 3 1009 9029 84 289 284 300
8 22 6.1 6 504 1129 42 364 380
200 535 4 17 2.6 3 1493 10592 222 389 380 400
8 34 10 6 746 1324 111 500 520
250 779 4 16 2.1 3 1850 19116 400 443 3H0 400
8 33 8.3 6 925 2390 200 500 520
300 1075 4 21 2.8 3 1536 15211 459 495 426 450
8 42 11 6 768 1901 229 570 594
350 1269 4 21 5.9 3 1682 19653 593 577 426 450
8 42 12 6 841 2457 296 570 594
400 1619 4 20 22 2.6 1917 28582 862 626 426 450
  8 41 8.6 5 958 3573 431 570 594
450 2003 4 20 1.9 2.3 2148 39632 1195 678 426 450
8 40 7.7 4.6 1074 4954 598 570 594
500 2428 4 20 1.7 2 2380 53229 1605 729 426 450
8 40 6.9 4 1190 6654 803 570 594
600 3473 4 36 4.3 3 1561 17977 1506 830 576 600
8 71 17 6 781 2247 753 816 840
product details product details

application

Axial 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.

workshop

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?
    160MPa.
  2. What diameters can you produce?
    From DN15 to DN7000.
  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.

customers

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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