Product Description

Nominal Size: 12″ID x 8″ OAL
Flange: 12″ 150 lb floating
Face to Face Dimension: 8″
Lateral Deflection: (+/-1/2″)
Axial Extension: ¾”
Axial Compression: 1″
Angular Deflection: 6 degrees
Working Pressure: 225 psig
Maximum Vacuum: 26″ Hgg
Temperature Range: 20 to 250°F
Body Construction: EPDM

Flange OD: 19″
Bolt Circle Diameter: 17″
Number of Bolt Holes: 12
Bolt Hole Diameter: 1″
Recommend Bolt Diameter: 0.875″

Rubber Expansion Joints from Twin City Hose compensate for system pressure spikes and accommodate axial, angular, and lateral movements.  The MS1 series is a single arch expansion joint with floating solid plate flanges on each end. Advantages include:

  • Vibration isolation
  • Reduces pipeline harmonics
  • Small face-to-face dimensions
  • Single or Multi sphere configurations available
  • Multiple elastomer options available

pdblowers uses these pipe expansion joints on many blower packages and keeps common sizes in stock ready to ship.  If you require different materials of construction, contact pdblowers for a quote.

12″ Single Arch EPDM Expansion Joint

BOM Number: MS1-12 EPDM SKU: 29743 Category:


Shipping Weight: 113 lbs
Shipping Dimensions: 19 × 19 × 8 in

Twin City Hose