Series 2500 Low Pressure Round And Rectangular Expansion Joints

Series 2500 Low Pressure Round And Rectangular Expansion Joints

Information at a Glance


2500 Low Pressure Round & Rectangular Bellows Expansion Joints




4-240 in. / 100-6000 mm
Rectangle Unlimited


≤150 & 300 PSI / 10 & 20 Bar
≤1 5/ 1 Bar


16+ in. / 400+ mm
3+ in. / 75+ mm

Canadian Registration


This product is registered throughout Canada under
CRN 0D9278.59870YTNADD3

Other Products

Product Description

Series 2500 expansion joints have been specifically designed for round and rectangular low pressure duct and piping applications. Applications such as diesel engine exhaust, gas turbine exhaust, ventilation ducting, and boiler exhaust ducting. The designs are highly flexible, and a variety of materials are available for high temperatures or corrosive applications. Specifications vary for each product group but in general Series 2500 round expansion joints are designed for pressures ranging from full vacuum to 15 psig.

2504-2507 Low Pressure 1 Ply Bellows Joint

Series 2500 Laminated Bellows Connectors are expansion joints designed to be highly flexible with internal vibration damping for direct installation on vibrating equipment such as engine exhausts, turbochargers and fan connections. Sizes range from 3″ through 18″ nominal pipe size with fixed, floating and weld end connections.

Series 2500 Round Expansion Joints

Series 2500 Round Expansion joints are available in standard designs from 6″ through 48.” Hyspan has the capability to manufacture expansion joints with diameters up to 34 feet. Standard end connections are fixed flange, floating flange, angle flange and weld end. They are available as single joints or universal configurations.

Series 2500 Rectangular Expansion Joints

Series 2500 Rectangular Expansion Joints are fabricated to customer specified dimensions with standard Hyspan convolution profiles, and a variety of corner configurations. Materials of construction range from carbon steel to stainless steel and high nickel alloy steels. Metal rectangular expansion joints are leak tight and typically last 15 years or more.

Custom Assemblies

Series 2500 bellows are commonly incorporated into assemblies designed specifically for a customer’s application. Hyspan’s total capability to design products and to fabricate all of the component parts minimizes development time and provides control over production.

Ordering Information

Hyspan products are available from Sales Representatives and Distributors, or they can be purchased direct from the factory. The minimum factory order for open account customers, COD shipments, or bank card sales is $50.00 (USD). All major credit or debit cards are accepted. The minimum order for new account applicants is $100.00. Our Confidential Credit Application can be downloaded and forwarded to Hyspan for processing. All orders are subject to the following Terms and Conditions, and the following warranty applies to all material. Please read these documents.

Terms and Conditions

Many Hyspan products have an extended warranty. Refer to individual products for the applicable warranty. Unless otherwise stated this Limited Warranty applies to Hyspan products.

Confidential Credit Application (13.9 KB), can be completed on line.

All Alloy 625 Expansion Joint Including Fabricated Angle Flanges
Hinged Rectangular Expansion Joint with Camera Fold Corners
Series 2500 Expansion Joint with flared ends to customer specifications


General Downloads
  1. Catalog
  2. Approval Submittal
  3. Specifications
  4. Installation Instructions
  5. Warranty
Revit & Step Drawings

Password-Protected Download Page

February 9, 2019
About developer