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Head Code: Hexagon
Shape: Equal
Connection: Flange
Brand Name: Liwei
Model Number: BPDZ
Place of Origin: China (Mainland)
Type: Flange
Technics: Forged
Material: Stainless Steel
ISO9001: ISO14001

Specifications

Henan Liwei Industry Co., Ltd:
1. Since 1988, Top 3 manufacturer of stainless steel bellows in China;
2. The Main Drafting Committee of National Standard for Bellows; 
3. Qualified Supplier for Nuclear Power Plant;
4. ISO9001:2008 and ISO14001:2004 Certified.
 
Bellows Expansion Joint is the compensating element for thermal expansion and relative movement in pipelines, containers and machines. They consist of one or more metal bellows, connectors at both ends, and tie rods that depend on the application. They are differentiated according to the three basic types of movement: axial, angular and lateral expansion joints. 
 
Bellows Expansion Joint is elastic vessel that can be compressed when pressure is applied to the outside of the vessel, or extended under vacuum. When the pressure or vacuum is released, the bellows will return to its original shape (provided the material has not been stressed past its yield strength).
 
Features: 
  • Economical end usage
  • Providing for lower initial costs in piping & construction work
Applications:
  • Diesel engine sets
  • Pipelines
  • Turbines
  • Compressors
  • Blowers
  • Vacuum pumps
  • Heat exchangers 
Advantages:
  • Reduce vibration
  • Dampen sound transmission
  • Compensate lateral, torsional & angular movements
  • Compensate axial movements
  • Minimal face-to-face dimensions
  • Lightweight
  • Low movement forces required
  • Reduced fatigue factor
  • Reduced heat loss
  • Corrosion, erosion resistant
  • No gaskets
    • Why us:
    Henan Liwei Industry Co.,Ltd. is a leading manufacturer of stainless steel bellows in China. We have:
    (1) Strong R&D strength;
    (2) Strict Quality Control System;
    (3) Perfect Test System;
    (4) Professional After-sale Service Team;
    (5) OEM Service.
    We are your qualified supplier and reliable friends!



    nominal diameter DN
    length L
    axial displacement
    horizontal displacement
    mm
    deflexion angle
    a1+a2

    mm
    inch
    extension mm
    compression mm

    32
    1 1/4
    95
    6
    9
    9
    15

    40
    1 1/2
    95
    6
    10
    9
    15

    50
    2
    105
    7
    10
    10
    15

    65
    2 1/2
    115
    7
    13
    11
    15

    80
    3
    135
    8
    15
    12
    15

    100
    4
    150
    10
    19
    13
    15

    125
    5
    165
    12
    19
    13
    15

    150
    6
    180
    12
    20
    14
    15

    200
    8
    210
    16
    25
    22
    15

    250
    10
    230
    16
    25
    22
    15

    300
    12
    245
    16
    25
    22
    15

    350
    14
    255
    16
    25
    22
    15

    400
    16
    255
    16
    25
    22
    15

    450
    18
    255
    16
    25
    22
    15

    500
    20
    255
    16
    25
    22
    15

    600
    24
    260
    16
    25
    22
    15

    700
    28
    320
    16
    25
    22
    15

    800
    32
    340
    16
    25
    22
    15

    900
    36
    370
    16
    25
    22
    15

    1000
    40
    400
    18
    26
    24
    15

    1200
    48
    420
    18
    26
    24
    15