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BEST-IN-CLASS

Ring reinforced
expansion joints

Belman designs, manufactures and delivers high pressure ring reinforced expansion joints. We have successfully manufactured expansion joints with different dimensions and for different applications, designed for a working pressure of more than 185 barG/ 2683 psi. Belman has even manfucatured an Expansion Joint that was tested for 365 barG/ 5293 psi.

Why ring reinforcement?
By supporting a multi-layered Ring Reinforced Expansion Joints, an optimum combination of both pressure integrity and service life is achieved.

Design range and scope of supply within Ring Reinforced Expansion Joints
Ring reinforced Expansion Joints are customised solutions designed to fit the application. They are available in all designs, all sizes and all materials.

Dimensions

DIMENSIONS:
DN 15-12.000

Pressure

PRESSURE:
Up to 185 barG/ 2683 psi.

Temperature

TEMPERATURE:
-165°C to +1000°C

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MATERIALS:

Austenitic steels, High alloys,
Duplex, Titanium, Hastelloy,
Incoloy, Inconel, Alloy 59

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DESIGN CODES:

EN 13445, EN 13480, EN 14917
ASME VIII, div.I, ASME B31.3
ASME B31.1, EJMA, AD 2000
and others on request

Test and Quality Control

TESTS:

Radiographic examination (X-ray), Helium leak testing, Pressure test,  Air test, Dye penetrant test,  Magnetic particle examination and many more

ENGINEERED
RING REINFRCED
EXPANSION JOINTS
RING REINFRCED EXPANSION JOINTS

CASE STORIES

TESTED AT 356 BARG

Spectacular Gimbal Expansion Joint designed for 215barg and tested at 256 barg for petrochemical facility.

RING REINFORCED FOR 82 BARG

Equalizing ring reinforced expansion joint was the solution for a manufacturer of fertilizers.

TESTED AT 200 BARG

Remarkable Coner Relief Expansions Joints designed for 145 barg and tested at 200 barg for Nuclear Power Plant.

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RING REINFRCED EXPANSION JOINTS 
TECHNICAL DESCRIPTION
APPLICATION

Ring Reinforced Expansion Joints with equalising rings and reinforcing ring bellows are usually chosen for high-pressure installations.

TYPES & DESiGNS

Ring reinforced expansion joints with equalising rings and reinforcing ring bellows are usually chosen for high-pressure installations. Equalising rings are solid stainless steel rings fitted externally on the bellows of the ring reinforced expansion joints. The rings are precisely machined so they fit into the root between each of the bellows convolutions. The purpose of the rings is to reinforce the bellows against internal pressure. By adding moment of inertia to the bellows cross section, this counteracts the bellows ability to blow out or buckle (also called squirm) and enhances its stability and pressure integrity. Bellows with reinforcing rings can be made for any type of expansion joint (axiallateral or angular etc.) The disadvantage of the ring reinforced expansion joints having reinforced bellows are the significantly increased stiffness of the bellows and their limited movement properties.

Special ring reinforced solutions
For expansion joints with demanding operating conditions, the ring reinforcement is designed with bellows of thicker plies, of duplex stainless steel for additional strength. The reinforcement rings are supported by tie rods, which are connected to lugs. The improved flexibility of the expansion joints is further enhanced by an extra balancing bellow, which in combination with the pressure balanced design help to bring the reaction forces towards an acceptable level.

ADVANTAGES

What are the advantages of using Ring Reinforced Expansion Joints?

  • Both pressure integrity and service life is achieved
  • Customised for the operating pressure of the exact application
  • Allow the use of Expansion Joints even in high pressure applications
  • Cost efficient solution for high-pressure applications
Catalogue

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CATALOGUE

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INSTALLATION iNSTRUCTION

QUALITY & TESTS

Belman is known for high product quality and therefore our  quality control is a fundamental part of our business. All processes during production is strictly done according our procedures and carefully inspected by Belman quality engineers and inspectors. All checks and inspections are done according to the strict prevailing Belman quality control procedures which is part of the Belman ISO 9001 quality management system approved by DNV.

Test
Belman do a large variety of tests. Test conducted for Ring Reinforced Expansion Joints are always as standard a visual test and very often pressure tests. If clients would like us to perform further tests,  we do that as per pre-agreement/contract. For  our Metallic Expansion Joints Belman is used to performaning many different tests, for which reason we are familar with a large variety.

Test involving external surveyors (NoBo)
If required by the client and/or the project specifications, Belman gladly welcome external third party surveyors to witness and approve the Ring Reinforced Expansion Joints and the test of them.

Experienced &
FAMILIAR WITH
MANY DESIGN CODES

Belman can design, manufacture and deliver ring reinforced expansion joints in accordance to:

  • EN 13445
  • EN 14917
  • EJMA
  • Other design codes are available on request

WE HAVE ENGINEERED
EXPANSION JOINTS SINCE 1994

This enable us to find you the optimum solution to your piping system.

EXPERIENCED & APPROVED SUPPLIER
CERTIFICATES  & TYPE APPROVALS

Belman Expansion Joints are certificed by recognised classification authorieties.

  • EN ISO 9001:2015
  • EN ISO 3834-2
  • 2014/68/EU Module H
  • 2014/68/EU Module D
  • TÜV AD 2000-Merkblatt HP0
  • RINA
  • Mark Transfer approval
  • Achilles JQS
  • UTILITIES NCE
  • TR CU 032/2013 (GOST-R)
  • Declaration of conformity (Russian Rostechnadzor)
  • CE and UKCA markings

Type approvals (incl. LNG/LPG Approvals):

  • DNV
  • DNV
  • Lloyd’s Register
  • Bureau Veritas
  • DNV (LNG type approval)
  • ABS


EXPERIENCED & APPROVED SUPPLIER
CERTIFICATES  & TYPE APPROVALS
Belman Expansion Joints are certificed by recognised classification authorieties.
  • EN ISO 9001:2015
  • EN ISO 3834-2
  • 2014/68/EU Module H
  • 2014/68/EU Module D
  • TÜV AD 2000-Merkblatt HP0
  • RINA
  • Mark Transfer approval
  • Achilles JQS
  • UTILITIES NCE
  • TR CU 032/2013 (GOST-R)
  • Declaration of conformity (Russian Rostechnadzor)
  • CE and UKCA markings

Type approvals (incl. LNG/LPG Approvals):

  • DNV
  • DNV
  • Lloyd’s Register
  • Bureau Veritas
  • DNV (LNG type approval)
  • ABS









EXPERIENCED & APPROVED SUPPLIER
REFERENCES
OIL & GAS

Total Fina Elf • BP • OMV • Gunvor Petroleum (Prev. Kuwait Petroleum
Europoort B.v (Q8)) • Shell • Statoil • Rosneft • Enap • TOR • MOL • Chevron • Eni • Murco Petroleum Limited • Linde Ag • Qapco • Lukoil • Preem • Total • PKN Orlen • Saudi Aramco • KNPZ • Maersk Oil • Tatneft

Ceylon Petroluem • Termo Petroleo • Repsol • Equinor (Statoil) • Novatek • Valero • China National Petroleum Corporation (CNPC) • Ineos • National Refinery • Valero • GE Oil & Gas • ExxonMobil • Sinopec • Petrogal • NOV • Ruhr Oel •

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