Expansion Joints

Hose Master is a premier manufacturer of metal hose and expansion joints with facilities located in Cleveland, Ohio; Houston, Texas; Atlanta, Georgia; and Reno, Nevada. Hose Master was the first domestic metal hose manufacturer to be ISO 9000 registered and is widely recognized for technical expertise and innovation. Using the winning formula that made us the industry leader for engineered metal hose and assemblies, Hose Master provides the same superior engineering, precisely controlled manufacturing processes, expert quality control, and extraordinary customer service to the art of expansion joints.

Engineering and Manufacturing

At the heart of Hose Master’s success is technical expertise. Proprietary equipment, designed and built in-house, makes the difference between ordinary products and superior, value-engineered products.

Hose Master’s expertise goes beyond manufacturing with a team of skilled engineers ready to assist you in designing an expansion joint for almost any application.

Quality Assurance

Delivering the highest quality products for the most demanding applications is a guiding principle at Hose Master. Designs conform to EJMA and ASME Section VIII, meeting the requirements of the piping, boiler and pressure codes – B31.1 and B31.3. This certification applies to the scope of activity related to the fabrication and assembly of pressure piping, which means our engineering and production teams can design systems in accordance with the rules of the ASME Boiler and Pressure Vessel Code. This certification gives Hose Master the “U”, “PP” and “R” Stamps for expansion joints.

Customer specifications can be verified through Finite Element Analysis (FEA), or 3D CAD modeling. Expansion joint test options include pneumatic, hydrostatic, high-pressure gas, or liquid penetrant methods, as well as helium mass spectrometry and radiography.

Product & Failure Analysis

A key to permanently solving any tough expansion joint application is to accurately identify the root cause(s) of past failure modes of products removed from service. Hose Master’s in-house product and failure analysis lab can identify various failure modes, whether a result of fatigue, corrosion, deformation, or from a host of other possible causes. Hose Master is the only metal hose and expansion joint manufacturer in North America that offers in-house failure analyses and reverse engineering as a no-charge service to its distributor partners.

Service

With 90+ ASME IX Certified welders and a comprehensive material stocking program, Hose Master provides the exceptional service our industry demands. In addition to providing the best standard delivery lead-time, Hose Master offers our After Hours Emergency Service for hose and expansion joints, providing customers an expedited response for critical and time-sensitive situations that arise beyond normal business hours.

Expansion Joint Rebuild

Using customer-provided components from an expansion joint removed from service, Hose Master can replace bellows and often reuse pre-existing pipe and fittings. This offers a cost-effective option when dealing with very large diameter expansion joints and special designs. Hose Master can also reverse- engineer the product for its specified application or evaluate the parts that are being replaced in our laboratory to determine the cause of failure. Backed with this knowledge, Hose Master’s team of engineers and ASME IX certified welders can design and make any necessary changes to the expansion joint to enhance its performance and extend its service life.

expansionjoints-6

BB
BB – Banded Bellows
Ideal for slipping over pipe and welding in place

WE
WE – Welded End
Beveled to facilitate pipe-to-pipe welding. Most common end connection.

FF
FF – Fixed Flange
Recommended for ease of replacement. Requires accurate flange hole alignment.

VF
VF – Vanstone Flange
Economical solution for piping systems with misaligned bolt holes.

LJ
LJ – Lap-Joint Flange
Commonly used when vanstone flanges are not an option.

SW SW – Single Welded Liner
Most common type of internal liner. Maximum durability.
TW TW – Telescoping Welded Liner
For large axial movements.
FW FW – Flush Welded Liner
No protrusion into flow-stream. Minimal pressure drop. Recommended for refactory-lined pipe.
SD SD – Single Drop-In Liner
Can be removed and cleaned.
TD TD – Telescoping Drop-In Liner
For large axial movements. Can be removed and cleaned.

Comparison of Ratings, Features, and Available Options

EJ Styles Relative Movement Capability Relative Spring Forces Pressure Thrust on Piping System Available Features
Axial Angular Lateral Axial Angular Lateral Internal Flow Liner Types External Cover Redundant Ply Design End Connection Types
US
Unrestrained Single
YES SW, TW, FW, SD, TD YES YES BB, WE, FF, VF, LJ
LS
Limit Single
YES SW, TW, FW, SD, TD YES YES BB, WE, FF, VF, LJ
TS
Tied Single
NO SW, TW, FW, SD, TD YES YES BB, WE, FF, VF, LJ
HS
Hinged Single
NO SW, TW, FW, SD, TD YES YES WE, FF, VF, LJ
SHS
Slotted Hinged Single
YES SW, TW, FW, SD, TD YES YES WE, FF, VF, LJ
GS
Gimbaled Single
NO SW, TW, FW, SD, TD YES YES WE, FF, VF, LJ
UU
Unrestrained Universal
YES SW, TW, FW, SD, TD YES YES BB, WE, FF, VF, LJ
TU
Tied Universal
NO SW, TW, FW, SD, TD YES YES WE, FF, VF, LJ
PBS
Pressure-Balanced, Elbow, Single
NO SW, TW, FW, SD, TD YES YES WE, FF, VF, LJ
PBU
Pressure-Balanced, Elbow, Universal
NO SW, TW, FW, SD, TD YES YES WE, FF, VF, LJ
PBI
Pressure-Balanced, In-Line
NO SW, TW, FW, SD, TD YES YES WE, FF, VF, LJ
EPS
Externally-Pressurized Single
YES FW INCL YES WE, FF, LJ
EPD
Externally-Pressurized Dual
YES FW INCL YES WE, FF, LJ
Legend:
↑ Higher
↔ Moderate
↓ Lower
— Non Applicable

Options

Purge Ports
purge-ports

Packed Bellows
packed-liner

Self-Draining Liner
self-draining-liner

Hose Master places emphasis on continual improvements within our manufacturing processes, product offering and services. Hose Master reserves the right to make changes without further notice to any products contained herein.