URGENT AND EXPRESS DELIVERY
metal expansion joints andstainless steel corrugated hose assemblies.
client requirement.
The client had emphasized the critical urgency of the delivery, as the flexible hose assemblies were required for a newly commissioned power plant in the UAE. Due to unforeseen technical limitations with their existing supplier, they were facing a risk of project deadline delay. To avoid further setbacks in the commissioning schedule, they approached us with an expedited request for immediate material supply. Based on the technical requirement, quantity and urgency, the deadline was set to 5 days after order, standard and specification confirmation.
flexible metal hose assemblies
Flexible metal hose assemblies needed to be designed for U - loop configuration, where it is ideal for managing larger thermal growth and minimizing stress in piping systems. Constructed from corrugated SS316 stainless steel hose and fitted with ANSI B16.5 Class 150 fixed flanges, each assembly needed to undergo hydrostatic testing at 1.5 times its rated pressure and is engineered with a 4:1 safety margin. The dual hose loop design for this projects needed to ensure negligible end thrust when anchors and guides are installed. These hoses needed to be designed for process fluids in heavy duty environments such as power generation and petrochemical plants.
metal expansion joint
Required for straight run piping requiring controlled axial movement, our single axial tied metal expansion joints feature SS316 bellows, internal flow liners to reduce erosion, and robust tie rod restraint assemblies and flanged connections. The deisgn needed to include both vertical and horizontal installation and to accomodate the high flow velocity with axial and lateral movements. The material, ply thickness and no. of plies selected should be ideal for steam and hot fluid media under pressure, to ensure pipeline integrity under repeated thermal cycling.
few design specifications.
Type
Sizes
● 3 inch x 600 mm Long
● 2.5 inch x 550 mm Long
Movement
● Angular Movement Range : 5 to 20 deg
● Lateral movement Range : +/- 40 mm to 75 mm
End Fittings
Hose Assembly Material
Operating Pressure
Quantity
● 3 inch x 600 mm Long - Qty 169 Nos.
● 2.5 inch x 550 mm Long - Qty 120 Nos.
Type
Size
● DN 350 x 350 mm Long
● DN 650 x 350 mm Long
Medium
Movement
● Lateral : +/- 10 mm
Design Temperature
Design Pressure
Bellows Material
Design Code
End Fittings
Inner Sleeve Material
Quantity
● DN 350 x 350 mm Long - 26 Nos.
● DN 650 x 350 mm Long - 14 Nos.
express manufacturing and dispatch.
The client highlighted the critical urgency of the delivery, including expedited shipping to the UAE, as the flexible stainless steel hose assemblies were essential for the startup of a newly commissioned power plant. To mitigate potential project overruns and avoid downtime, the client urgently engaged our team with a request for expedited manufacturing and delivery.
Under typical production timelines, an order of this scale would require a longer lead time due to the volume, custom configurations, and quality control protocols involved. However, recognizing the criticality of the application and the project implications, we prioritized this order across all departments—from engineering design to material procurement, fabrication, assembly, and testing.
Despite the complexity and tight tolerance requirements, we successfully manufactured and dispatched the following within 5 working days:
● 180 units of 4” x 800 mm SS316 U loop Flexible Metal Hose
● 169 units of 3” x 600 mm SS316 U loop Flexible Metal Hose
● 120 units of 2.5” x 550 mm SS316 U loop Flexible Metal Hose
● 35 units of DN 200 x 300 mm Long SS316 metal expansion joint
● 26 units of DN 350 x 350 mm Long SS316 metal expansion joint
● 14 units of DN 650 x 350 mm Long SS316 metal expansion joint
Each unit underwent hydrostatic pressure testing at 1.5 design pressure, along with dimensional verification, visual inspection, and welding quality checks as per our internal QA/QC procedures. A comprehensive set of documentation—including pressure test reports, material test certificates (MTCs), and final inspection reports was compiled and delivered alongside the shipment.
