Threaded Union Molded Rubber Expansion Joints

Features

• Efficient noise and vibration isolation.
• Ability to absorb large displacement due to eccentric, axial, and angular movement.
• Applicable for both suction and discharge.
• Female Threaded Unions allow for easy installation.

 

Applications

• Vibration isolation for small pumps and circular pumps.
• Sewage disposal purifier line.
• Vibration isolation for air-conditioners and pipes.

 

Specifications: Threaded Union Molded Rubber Expansion Joints

ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE STATED

API Part Number	Size	Face To Face Dimensions	Allowable Motion Ratings* Compression	Allowable Motion Ratings* Elongation	Allowable Motion Ratings* Lateral	Allowable Motion Ratings* Angular	Approximate Weight
AMU0050-XX	0.5	8	0.875	0.250	0.875	45°	1.50 Lbs
AMU0075-XX	0.75	8	0.875	0.250	0.875	45°	1.80 Lbs
AMU0100-XX	1	8	0.875	0.250	0.875	45°	2.75 Lbs
AMU0125-XX	1.25	8	0.875	0.250	0.875	45°	3.50 Lbs
AMU0150-XX	1.5	8	0.875	0.250	0.875	45°	4.00 Lbs
AMU0200-XX	2	8	0.875	0.250	0.875	45°	5.00 Lbs

*Non Concurrent Ratings. Warning: Do NOT elongate rubber expansion joints when installing for suction service.  

Part Number Structure

Part Number Section	Options
Type	AMU = Twin Sphere Union Expansion Joint
Size	XXX = Size in inches going out 2 decimal places
Body Material *Denoted with “XX”	EP = EPDM NE = Neoprene

 

Operating Conditions

Operating Pressure	up to 150 psi
Normal Operating Temp.	14°-158° F
Vacuum Rating	25″ Hg
Burst Pressure	750 psi

Warning: Pressure ratings listed in the above table are for up to 110 Degrees F (for Neoprene), and 125 Degrees F (for EPDM). For elevated temperature service, please contact API Sales for actual working pressure ratings.  

Materials

Part	Part Description	Material
1	Threaded Union	Malleable Iron (Hot Dipped Galvanized)
2	Reinforcing Cloth	Nylon Fabric
3	Elastomer	EPDM