Dog Bone Expansion Joints | Macoga | Philippopoulos s.a.
Dog Bone Expansion Joints | Macoga | Philippopoulos s.a.
Dog Bone Expansion Joints | Macoga | Philippopoulos s.a.
Dog Bone Expansion Joints | Macoga | Philippopoulos s.a.

Dog Bone Expansion Joints | Macoga

Dog Bone Expansion Joints | Macoga – Reliable Solutions for Industrial Piping

Discover the innovative Dog Bone Expansion Joints | Macoga, designed to tackle challenging movements in piping systems across various industries. Built for safety and efficiency, these expansion joints ensure seamless fluid flow while protecting pipes from strain and damage.

Outstanding Features & Benefits of Dog Bone Expansion Joints | Macoga

  • Superior Flexibility: Dog Bone Expansion Joints are engineered to handle large lateral and angular movements. Their unique shape allows pipes to move without causing cracks or leaks, maintaining integrity even under tough conditions.
  • Durable Construction: Made from top-grade materials, these joints resist wear and corrosion. This means less frequent replacements, reducing maintenance costs and downtime for your operations.
  • Enhanced Safety: By absorbing vibration and thermal expansion, these joints minimize the risk of unexpected pipe failures. Protecting employees and equipment becomes easier and more reliable.
  • Easy Integration: Lightweight and compact, Dog Bone Expansion Joints can be fitted into existing piping systems with minimal disruption. Their design suits both new installations and upgrades.
  • Cost-Effective Performance: Reducing the stress on pipes leads to longer system life and fewer repairs. This smart choice means better long-term savings for your facility.

Every Dog Bone Expansion Joint | Macoga meets strict quality standards, ensuring top performance in demanding environments like power plants, oil refineries, and chemical facilities. Whether dealing with high pressures or fluctuating temperatures, these expansion joints adapt to your system’s needs.

Enjoy peace of mind with a solution that’s proven to work under pressure. The Dog Bone Expansion Joints | Macoga are trusted by industry professionals worldwide for their reliability and smart engineering. Choose Macoga for a smoother, safer, and more efficient piping system.

Datasheet and documents

Description

Multiply moulded belt

A moulded construction of plies of rubber impregnated fabric, rubber covered and spliced endless to a specific peripheral dimension. Dog Bone Expansion Joints can be made of Neoprene (Poly-Chloroprene) or EPDM (Ethylene Propylene Polymer).

Standard overall width240 mm (9-3/8”)
Rubber MaterialEPDM or Neoprene
Reinforcements6 (standard) or 8 ply polyester 500 warp x 500 fill tensile strength.
Knobs32 mm (1-1/4”) diameter
Core16 mm (5/8”) Polypropylene cord

Rate movements (for a standard 240 mm width)

Axial Compression25 mm (1”)
Axial Extension3 mm (1/8”)
Lateral Movement12 mm (1/2”)

Maximum Temperature Rating

EPDM121 °C (250 °F) continuous
194 °C (350 °F) intermittent (max. 36 hours whole life)
Neoprene107 °C (225 °F) continuous
152 °C (275 °F) intermittent (max. 36 hours whole life)

Inner Liner

The internal liner secures a smooth flow, protects bellows from flow induced vibrations, hold friction to a minimum and protect bellows from erosion.

Connecting Ends

In carbon steel material as standard, they can be supplied with landing bars or weld ends for welding to customer’s ducting or with flanges drilled to match customer’s equipment.

Clamps

The rubber belt expansion joint equipped on both sides with self-sealing rubber knobs, affixed to the connecting metal parts using specially designed machined clamps that ensure tightness. The machined clamps and the bolting ensure leak tightness during operation. The clamps on either end are welded to a flange if the expansion joint is to be bolted to the condenser and the turbine. The clamps are welded to filler piece of a weld end if the expansion joint is to be welded to the turbine or the condenser.

Typical Applications

CERTIFICATES