Made in Japan
Manufacturer : Hachiken
Model : EA

Expansion

A multi-purpose rubber joint that absorbs expansion/contraction and eccentricity due to the temperature of the piping due to the arch structure of the main body.

Feature

• A large amount of displacement can be obtained by the arch structure of the main body.
• Installation in piping is particularly easy due to the small axial reaction force.

Kinds

• EA1: 1 arch type (for internal pressure/negative pressure)
• EA2: 2 arch type (for internal pressure/negative pressure)

Usage

• Chemical plant
• Pump/blower piping
• Flue gas desulfurization plant
• Ship piping
• Sewage treatment plant
• General factory equipment piping

Standard specifications

• Maximum operating temperature : -10 to 60°C
• Maximum working pressure : See performance table
• Flange standard : JIS 10K
• Inner rubber material : EPDM

Structure and material

　

　　                 [EA1]                                                     [EA2]

* Hot-dip galvanized flanges are standard for ground and negative pressure applications, and hot-dip galvanized + black epoxy resin paint is standard for underground applications.

Dimensions and performance table

Option

<Remarks/Precautions>

• If necessary, use the control unit ( here ).
• If the fluid is gas, the maximum working pressure will be 1/2 of the above value.
• Please contact us for non-standard specifications (diameter, length, etc.).
• Due to the manufacturing method, the plating on the flange may be discolored or mottled, but this does not affect performance.