AJ520
AJ520
AJ520

AJ520

The AJ520 rigid joint is designed with a diagonal slide method to provide a solid connection. It is is easy to join high-pressure pipes.

  • Grooved joint for High Pressure and STS
  • Grooved joint Rigid type
  • Joint material: Spherical graphite cast iron (ASTM A536, GCD450)
  • Gasket material: EPDM
  • Bolt/nut material: Carbon steel for mechanical structure
  • Painting: Epoxy powder painting

Product specification

The Model AJ520 is an angle-pad design rigid coupling for general piping applications where rigidity is required including valve connections, mechanical rooms, fire mains and long straight runs. The angle-pad design allows the coupling housings to slide along the bolt pads when tightened. The result is an offset clamping action which provides a rigid joint that resists flexural and torsional loads.

AJ520 couplings should always be installed so that the coupling bolt pads make metal to metal contact


Material specification

  • Housing: Ductile Iron to ASTM A536, Gr. 65-45-12, min. tensile strength 65,000 psi (448 MPa)
  • Surface Finish: Epoxy Coating
  • Rubber Gasket: Grade EPDM approved under NSF/ANSI 61.
  • Bolts & Nut: CS for machine structural use.


[ Product specification ]

Nominal
Size
DN
Inch		 Pipe O.D.
(mm)		 Max.
Working
Pressure
(kgf/cm2)		 Max.End Load
(kN)		 Allow.
Pipe End Sep
(mm)		 Dimensions
(mm)		 Bolt Size
(ΦxL)		 Wrench Size
(mm)		 Weight
(kg)
A B C
40
1.1/2		 48.3 52 9.7 1.1 76 113 48 M10 X 60 17 0.88
50
2		 60.3 52 15.0 1.6 87 123 50 M10 X 70 17 1.06
65 76.1 52 23.8 1.6 103 142 51 M10 X 70 17 1.30
2.1/2 73.0 52 23.8 1.6 103 142 51 M10 X 70 17 1.30
80
3		 88.9 52 32.4 1.6 116 170 51 M12 X 75 19 1.68
100
4		 114.3 52 53.4 2.9 148 202 55 M12 X 75 19 2.16
125 139.7 48 73.6 2.9 174 242 55 M16 X 95 24 3.00
5 141.3 48 73.6 2.9 174 242 55 M16 X 95 24 3.00
150 165.1 48 102.9 2.9 200 269 56 M16 X 95 24 3.50
6 168.3 48 102.9 2.9 200 269 56 M16 X 95 24 3.50
200 216.3 41 150.7 3.2 261 341 65 M20 X 120 30 6.80
8 219.1 41 150.7 3.2 261 341 65 M20 X 120 30 6.80
250 267.4 34 190.9 3.2 315 399 66 M20 X 120 30 8.82
10 273.0 34 190.9 3.2 315 399 66 M20 X 120 30 8.82
300 318.5 27 215.1 3.2 370 468 67 M22 X 160 32 12.68
12 323.9 27 215.1 3.2 370 468 67 M22 X 160 32 12.68
350
14		 355.6 17 168.8 3.2 413 513 73 M22 X 130 32 16.64
400
16		 406.4 17 220.5 3.2 465 563 73 M22 X 130 32 18.66
450
18		 457.2 17 279.1 2.6 519 616 76 M24 X 140 32 19.28
500
20		 508.0 17 344.6 3.3 573 686 78 M24 X 140 32 26.82
600
24		 610.0 17 496.2 3.3 673 787 79 M24 X 140 32 32.04

※ The dimensions and Data values in the table above are subject to change to improve performance.
※ Please contact us for other sizes.

[General note]
*Maximum Working Pressure (CWP) listed is the maximum cold water pressure for general piping services tested to UL213.
*Please always refer to the latest approval data posted on the NEWASIA website.
*Warning: Piping systems must always be depressurized and drained before attempting disassembly and or removal of any components.
*The 2 Year Limited Warranty applies to manufacturing defects only and does not cover severe service/temperature applications or wear parts.
*NEWASIA reserves the right to change specifications, designs and or standard without notice and without incurring any obligations.

Video
New Asia One-Stop grooved Joint Product Introduction Video
New Asia One-Stop grooved Joint vs General grooved Joint Construction Comparison 01
New Asia One-Stop grooved Joint vs General grooved Joint Construction Comparison 02
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