Features
- Higher burst pressure ratings vs. AMS Series Rubber Expansion Joints
- Applicable for suction and delivery (discharge).
- Provides sound and vibration isolation.
- Gaskets and packing are not required.
- Floating flanges allow for easy installation.
- Prevents piping system and equipment breakdown by absorbing elongation and contraction caused by temperature variances.
- Absorbs water pulsation and minimizes water hammering.
- DIN PN10/PN16 drilled flanges available upon request (See DIN Flange section for dimensions)
- Working pressure ratings based on 4:1 safety margin (at 70°F).
Applications
- Pumps & air compressors in air conditioning system & sanitary equipment.
- Refrigeration systems and blowers in industrial plant equipment.
- Feed-water and drainage equipment in marine piping systems.
- Applicable for use in power generation and chemical plants.
- Marine applications
Specifications: Single Sphere Molded Rubber Expansion Joints (AJS Series)
ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE STATED
| API Part Number |
Size Inches |
Face To Face Dimensions Inches |
Allowable Motion Ratings*
Compression |
Allowable Motion Ratings*
Elongation |
Allowable Motion Ratings*
Lateral |
Allowable Motion Ratings*
Angular |
Installation Tolerances
Compression |
Installation Tolerances
Elongation |
Installation Tolerances
Lateral |
Installation Tolerances
Angular |
| AJS0100 |
1 |
6 |
0.5 |
0.38 |
0.5 |
20° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0125 |
1.25 |
6 |
0.50 |
0.38 |
0.50 |
20° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0150 |
1.5 |
6 |
0.50 |
0.38 |
0.50 |
20° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0200 |
2 |
6 |
0.50 |
0.38 |
0.50 |
20° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0250 |
2.5 |
6 |
0.50 |
0.38 |
0.50 |
15° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0300 |
3 |
6 |
0.50 |
0.38 |
0.50 |
15° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0400 |
4 |
6 |
0.63 |
0.38 |
0.50 |
15° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0500 |
5 |
6 |
0.63 |
0.38 |
0.50 |
15° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0600 |
6 |
6 |
0.63 |
0.38 |
0.50 |
15° |
0.19 |
0.13 |
0.25 |
5° |
| AJS0800 |
8 |
6 |
0.63 |
0.38 |
0.50 |
10° |
0.19 |
0.13 |
0.25 |
3° |
| AJS1000 |
10 |
8 |
0.75 |
0.50 |
0.75 |
10° |
0.19 |
0.13 |
0.25 |
3° |
| AJS1200 |
12 |
8 |
0.75 |
0.50 |
0.75 |
10° |
0.19 |
0.13 |
0.25 |
3° |
| AJS1400 |
14 |
8 |
1.00 |
0.63 |
0.75 |
5° |
0.19 |
0.13 |
0.25 |
3° |
| AJS1600 |
16 |
8 |
1.00 |
0.63 |
0.75 |
4° |
0.19 |
0.13 |
0.25 |
3° |
| AJS1800 |
18 |
8 |
1.00 |
0.63 |
0.75 |
4° |
0.19 |
0.13 |
0.25 |
3° |
| AJS2000 |
20 |
8 |
1.00 |
0.63 |
0.75 |
3° |
0.19 |
0.13 |
0.25 |
2° |
| AJS2400 |
24 |
10 |
1.00 |
0.63 |
0.75 |
3° |
0.19 |
0.13 |
0.25 |
2° |
*Non Concurrent Ratings.
Warning: Do NOT elongate Single Sphere Molded Rubber Expansion Joints when installing for suction service.
Part Number Scheme
| Part Number Section |
Options |
| Type |
AJS = Single Sphere Flanged Expansion Joint (Steel) |
| Size |
XXXX = Size in inches going out 2 decimal places |
| Body Material |
NE = Neoprene
EP = EPDM
BN = Buna-N/Nitrile/NBR |
| Flange Material |
STL = Steel |
| Class |
150 = 150# Drilling
300 = 300# DrillingP10 = DIN PN10 Drilling
P16 = DIN PN16 Drilling |
| Example |
AJS0200-NE-STL-150 = 2″ Single Sphere Expansion Joint with Neoprene Body and Steel Flanges with 150# Drill Pattern |
Operating Conditions
| Size Range |
1” – 12” |
14” – 24” & 28″ |
| Operating Pressure |
up to 225 psi (up to 160°F) |
up to 150 psi (up to 160°F) |
| Burst Pressure |
900 psi (at 70°F) |
600 psi (at 70°F) |
| Vacuum Rating* |
26 in/hg |
15 in/hg |
| Operating Temp. Range* |
Neoprene: 14°F- 180°F
EPDM: 14°F- 210°F
Buna-N/Nitrile/NBR: 14°F- 180°F |
Neoprene: 14°F- 180°F
EPDM: 14°F- 210°F
Buna-N/Nitrile/NBR: 14°F- 180°F |
Warnings:
- 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.
- Limit rods are required in systems that are unanchored and recommended in all other applications.
- Not for use in steam applications.
Materials
| Part |
Part Description |
Material |
| 1 |
Flanges |
Mild Steel – Plated |
| 2 |
Reinforcing Wire |
Mild Steel |
| 3 |
Tube |
Synthetic Rubber |
| 4 |
Cover |
Synthetic Rubber |
| 5 |
Reinforcing Cord |
Nylon |
Note: Customized for flanges ANSI-150, ANSI-300 and DIN
