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Shock Absorber

OverviewHydraulic Snubber

Hydraulic Pipe Shock Absorber

It is a supporting device that curbs various types of troubles arising from dynamic loads generated in and outside of the power generation facility including main equipment and pipelines, while avoiding the creation of additional thermal stresses by absorbing the designed thermal displacement. The internal factors include vibrations transmitted through a rotating machine, the shock generated when the valves are opened and closed, and water hammering. The external include wind load, earthquake, explosion, etc.


The Need

To protect the pipe and main equipment against dynamic loads that are generated by internal and external causes.

Venue Photo


Product Specifications (Standard)

Product Specifications

product specifications
TypeNaminal
load(kN)
Stoke
(mm)
A min
(mm)
Ahalf
stroke(mm)
A MAX
(mm)
0B
(mm)
C
(mm)
0D
(mm)
E
(mm)
F
(mm)
0G
(mm)
H min
(mm)
H half
stroke(mm)
H max
(mm)
0I
HAS-EA-AN01 10 100 467 527 587 81 52 20 20 17 47 356 456 586 42.7
200 590 700 810
HAS-EA-AN02 20 100 491.5 551.5 611.5 85 65 25 25 22 58 369 469 599 42.7
200 555.5 665.5 775.5
HAS-EA-AN03 30 100 499.5 599.5 619.5 100 60 30 22 28 64 364 464 594 48.6
200 625.5 735.5 845.5
300 751.5 911.5 1071.5
HAS-EA-AN05 50 100 515.5 575.5 635.5 109 70 35 25 30 78 374 474 604 60.5
200 649.5 759.5 869.5
300 777.5 937.5 1097.5
HAS-EA-AN07 70 100 570 630 690 124 97 40 40 33 90 403 503 633 60.5
200 699 809 919
300 828 988 1148
HAS-EA-AN10 100 100 568 628 688 135 97 40 40 33 90 403 503 613 76.3
200 698 808 918
300 828 988 1148
HAS-EA-AN12 120 100 569 629 689 146 97 40 40 33 90 403 503 613 76.3
200 700 810 920
300 830 990 1150
HAS-EA-AN15 150 100 587 647 707 157 105 50 35 40 116 409 509 619 89.1
200 718 828 938
300 849 1009 1169

Provision of customized service with products that meet specific customer needs

Product Performance

  • Small Punch Creep Tester
  • Multi Creep Tester
Product Specifications
Design parameterCriteria
Drag force Less than 3 ~ 5% of the Max. rated load
Release rate 0 ~ 0.5mm/sec
Lock-up velocity/acceleration 1 ~ 4mm/sec

Reference Standards

  • Specifications
  • ASME BPVC, Section Ⅲ, Division-1, NF (KEPIC MNF)
  • ASME OM Subsec, ISTD (KEPIC MOE)

Certificates Awarded

  • ASME

    Pipe Shock Absorber

  • KEPIC-MN

    Hydraulic pipe shock absorber

  • Patent

    Hydraulic pipe shock absorber

  • Patent

    Hydraulic snubber (pipe shock absorber)

Track Records

  • 2020
    • Indonesia | KPJB - TanjungJati #4
  • 2019
    • The Philippines | Team Energy - Pagbilao #1~2
    • KOWEPO - Taean pp. #1
    • Limut pp.
    • Indonesia | KPJB - TanjungJati #3
  • 2018
    • Indonesia | KPJB - TanjungJati #3
    • KOWEPO - Taean pp. #2
  • 2017
    • Indonesia | PLN - TanjungJati #4
    • The Philippines | Team Energy - Pagbilao #1
    • Thailand | Nabanakon pp.
    • KOWEPO - Pyeongtaek pp. #4
  • 2016
    • KOEN - Yeongheung pp. #1
    • Saudi Arabia | ROMCO - Rabigh pp.
    • KOMIPO- Sejong GCCC
    • Nigeria | EGBIN #5 /#1
  • 2015
    • Nigeria | EGBIN #1 / #5
    • Saudi Arabia | ROMCO - Rabigh pp.
  • 2014
    • Nigeria | EGBIN #4
    • Malaysia - Janamanjung pp. #1~3

ApplicationsMultiaxial Hydraulic Snubber

Multiaxial Hydraulic Pipe Shock Absorber

It is a supporting device that curbs various types of troubles arising from dynamic loads generated in & outside of the power generation facility including main equipment and pipelines, while avoiding the creation of additional thermal stresses by absorbing the designed thermal displacement. This Multiaxial hydraulic pipe shock absorber is so sophisticatedly designed and fabricated to respond to and absorb the shocks in random directions, breaking through the unilateral performance of the conventional shock absorber limited to responding to only one direction.


The Need

The need arose to design and engineer a compatible device that not only never restrains the movement of the piping even when 3D displacement different from the design breaks out, but also protects the piping and the main equipment from the strikes of dynamic loads of random directions.

  • Example of damage by
    multiaxial shock
  • Example of damage due to
    operating environment
  • Example of damage by
    excessive expansion

Venue Photo


Product Performance

product specifications
Design parametersCriteria
Drag force 2% of the rated load or 50Kgf.
Bleed rate 0.1~2.0mm/sec
Lock-up rate 2 ~ 6mm/sec
Multiaxial function 34°

Product Specifications

Customized, made-to-order products

Reference Standards

  • Specifications
  • ASME OM Subsec, ISTD
  • KEPIC MOE

Certificates Awarded

  • Patent

    Multiaxial pipe shock absorber

  • Product Selected for Development

    Multiaxial pipe shock absorber

Track Records

  • 2021
    • KOMIPO - Boryeong #4
  • 2020
    • KOMIPO - Sejong pp. #2
  • 2018
    • KOMIPO - Boryeong pp. #3
    • KOMIPO - Sejong pp.
    • KOWEPO - Pyeongtaek pp.#4
  • 2017
    • KOMIPO - Jeju pp.
    • KOMIPO - Sejong pp.
  • 2016
    • KOEN - Yeongdong pp. #1
    • KOMIPO - Sejong pp.
  • 2015
    • KOWEPO - Pyeongtaek pp. #4
    • KOMIPO - Sejong pp.
    • Malaysia | TNB REMACO - Janamanjung #1~3 / KEV #5~6
  • 2014
    • Malaysia | TNB REMACO - Janamanjung #2
    • KOMIPO - Boryeong pp. #4