Threaded Union Molded Rubber Expansion Joints (AJU Series)

Rubber Expansion Joint Installation Guide: SEE DOCUMENT

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 (AJU Series)

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
AJU0050-XX	0.5	8	0.87	0.23	0.87	40°	.99 Lbs
AJU0075-XX	0.75	8	0.87	0.23	0.87	40°	1.39 Lbs
AJU0100-XX	1	8	0.87	0.23	0.87	40°	2.35 Lbs
AJU0125-XX	1.25	8	0.87	0.23	0.87	40°	2.68 Lbs
AJU0150-XX	1.5	8	0.87	0.23	0.87	40°	4.09 Lbs
AJU0200-XX	2	8	0.87	0.23	0.87	40°	5.39 Lbs
AJU0250-XX	2.5	9.6	0.87	0.23	0.87	40°	7.90 Lbs
AJU0300-XX	3	9.6	0.87	0.23	0.87	40°	9.90 Lbs

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

Part Number Structure

Part Number Section	Options
Type	AJU = 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°-160° F
Vacuum Rating	26″ Hg
Burst Pressure	700 psi

Warning: Pressure ratings listed in the above table are for temperatures up to 160°F. For temperature service above 160°F, 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