Hyspan designs and manufactures a comprehensive selection of products for Commercial and HVAC pipe motion applications in district energy, building new construction, university distributed energy, municipal support, military facilities, building modernization, and other sites. 

Most applications involve absorbing thermal expansion or contraction; however, other applications involve seismic isolation, vibration isolation, relative motion compensation for building settlement, and flow measurement.  

For more than a half-century, we have designed, engineered, manufactured, tested, and acquired various expansion joint technologies. This unique and extensive experience provides Hyspan exceptional capabilities in this critical industry.  

Hyspan’s complete line of products includes metal bellows expansion joints, packed expansion joints, ball joints, metal hoses, and accessory products such as pipe guides and flow measurement venturis. 

Sizes range from 3/4” (19mm) through 20’ (6m). Complete metal bellows and hose assemblies provided from 304/304L, 316/316L, and 321 flexible components. Additional metal bellows and hoses materials include Alloy 625, Alloy 718, Alloy C22, and Alloy C276. Flanges or pipe ends are available. 

Often the product selected is a standard Hyspan configuration or an adaptation of a standard. Engineered expansion joints and hoses are available to meet specialized requirements and demanding customer specifications. Hyspan staff can meet challenging engineering problems and manage major contracts.  

Hyspan is an ISO 9001:2015 registered company with a quality system that supports requirements of the piping and boiler pressure vessel codes. These include popular ASME B31.1, ASME B31.3, and ASME Section VIII Division 1 codes. Support for standards and codes including Expansion Joint Manufacturers Association (EJMA®), ASTM F1120, MIL-DTL-17813, European Pressure Equipment Directive (PED) with CE markings, and Canadian Registration Number (CRN) are also available for many products. 

Nondestructive testing and inspections are performed by company personnel including radiography. Quality personnel are certified to the standards of the American Society of Nondestructive Testing (ASNT). Hyspan is a member of the Expansion Joint Manufacturers Association (EJMA®). A copy of our Hyspan EJMA® certificate is available. 

District Energy (University)
District Energy (University)
Engineering, Procurement, & Construction (EPC)
Engineering, Procurement, & Construction (EPC)
New Construction
New Construction


Series 1500 Laminated Low Area Bellows Expansion Joints

Series 1500 Hyflex Bellows Expansion Joints

1507-1510 Hyflex Single Bellows Exp Joint
1511-1512 Hyflex Uni Bellows Exp Joints
1511IS Inline Seismic Uni Bellows Exp Joints
1507HG-1510HG Hyflex Single Hinge/ Gimbal Bellows
Exp Joints

Series 2500 Low Pressure Round & Rectangular Bellows Expansion Joints

Bellows Transparent

2504-2507 Low Pressure 1 Ply Bellows Joint
2524-2527 Low Pressure 1 Ply All 304/304L Bellows Joint
2534-2537 Low Pressure 1 Ply All 316L Bellows Joint
2509-2511 Low Pressure 3 Ply Bellows Joint
2529-2531 Low Pressure 3 Ply A 304/304L Bellows Joint
2539-2541 Low Pressure 3 Ply All 316L Bellows Joint
2554-2555 HySeal Low Pressure 1 Ply Penetration Seal Bellows Joint
25RECT Low Pressure Rectangle Bellows Expansion Joint

Series 3500 External Pressure Bellows Expansion Joints


3501-3506 Single/Dual 3 Ply Ext. Pres. Exp. Joints
3501PB-3502PB Single 3 Ply Pres. Balanced Ext. Pres. Exp. Joints
3501IS-3502IS Single Inline Seismic & Settling Ext. Pres. Exp. Joints
3501SRV-3502SRV Safety Relief Valve 3 Ply Ext. Pres. Vent Exp. Joint

Series 4500 Braided Hose Connectors


4501-4505 Straight Braided Hose Connectors
45V1-45V8 V-Flex Seismic Connector
Anaconda Vibration Eliminators with Copper Ends
Universal Metal Hose Braided Hose, Strip Wound, and Assemblies
Anaconda Metal Hose and Braided Connectors

Series 5500 Laminated Bellows Connectors

5501R-5502R 3 ply Minimum Length Bellows Connector tbkg 1in

5501R-5502R 3 Ply Minimum Length Bellows Connector
5506R 3 Ply Rubber Joint Length Bellows Connector

Series 6800 Flexible Strut Joints/Vibrasnubs


Flexible Strut Joints
Vibrasnub Hydraulic Vibration Snubbers

Series 7500 Engineered Bellows

Formed Metal Bellows

Series 8500 Expansion Compensators


8503-8506 Steel Pipe Compensator, 3/4″ to 4″ NOM
8509-8510 Copper Tube Compensator, 3/4″ to 4″ NOM

Series 9500 Alignment Guides


Pipe Guide, Steel & Stainless Steel, 3/4″ to 14″ NPS
Tube Guide, Copper, 3/4″ to 4″ NOM

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