8.52 [1N Standard Reducing Flexible Couplings] [FM, UL, VdS, CNBOP] Red.jpg 8.52 [1N Standard Reducing Flexible Couplings] [FM, UL, VdS, CNBOP] Galvanised.jpg

1NR Standard Reducing Flexible Coupling

  • FM Approved Logo Mid Grey 300.jpg
  • UL Logo Mid Grey 144.jpg (1)
  • VdS Logo mid grey 600.jpg (1)
  • CNBOP-B Logo - Grey.jpg
Size range DN65 × DN50 to DN200 × DN150 (2½" × 2" to 8" × 6")
Maximum working pressure Up to 20.7 bar (300 psi)*

*depending on size and certification, please refer to Data Sheet 8.52
Working temperature -34°C to 110°C (-30°F to 230°F)
Gasket type EPDM
Material Ductile Iron
Finish Red painted or Galvanised
Approvals FM Approved, UL Listed, VdS and CNBOP Certificates

Rapidrop Grooved couplings and fittings are used in the assembly of grooved piping systems. They are available in painted and galvanised finishes and are FM, UL, VdS, LPCB and CNBOP approved.  The Rapidrop type 1NR reducing coiuplings are pressure rated to 300psi and can be used to reduce pipe size without having to use a grooved reducer. They can be used with standard and thin walled pipes.

Sizes & Dimensions

Nominal Size
mm/in		 Pipe
O.D
mm/in		 Working
Pressure
PSI/MPa		 Max End
Load
kN/Lbs		 Pipe End
Separation
mm/in		 Dimensions Bolt Size 
A mm/in B mm/in C mm/in No.-Size mm
65 × 50
2½ × 2		 76.1 x 60.3
3.000 × 2.375		 300
2.07		 9.4-2120 0-3.2
0-0.13		 102
4.02		 144
5.67		 45
1.78		 2 - 3/8 x 55
2 - M10X57
80 × 50
3 × 2		 88.9 x 60.3
3.500 × 2.375		 300
2.07		 12.8/2885 0-3.2
0-0.13		 115
4.53		 168
6.61		 46
1.81		 2 - 1/2 x 70
2 - M12X70
80 × 65
3 × 2½		 88.9 x 76.1
3.500 × 3.000		 300
2.07		 12.8/2885 0-3.2
0-0.13		 115
4.53		 172
6.77		 46
1.81		 2 - 1/2 x 70
2 - M12X70
100 × 50
4 × 2		 114.3 × 60.3
4.500 × 2.375		 300
2.07		 21.2/4770 0-3.2
0-0.13		 144
5.67		 198
7.80		 50
1.97		 2 - 1/2 x 70
2 - M12X70
100 × 65
4 × 2½		 114.3 × 76.1
4.500 × 3.000		 300
2.07		 21.2/4770 0-3.2
0-0.13		 144
5.67		 202
7.95		 50
1.97		 2 - 1/2 x 70
2 - M12X70
100 × 80
4 × 3		 114.3 × 88.9
4.500 × 3.500		 300
2.07		 21.2/4770 0-3.2
0-0.13		 148
5.83		 198
7.80		 50
1.97		 2 - 1/2 x 70
2 - M12X70
150 × 80
6 × 3		 168.3 × 88.9
6.625 × 3.500		 300
2.07		 46.0/10340 0-3.2
0-0.13		 200
7.87		 268
10.55		 51
2.01		 2 - 5/8 x 85
2 - M16X85
150 × 100
6× 4		 168.3 × 114.3
6.625 × 4.500		 300
2.07		 46.0/10340 0-3.2
0-0.13		 202.5
7.97		 268
10.55		 52.5
2.07		 2 - 5/8 x 85
2 - M16X85
200 × 150
8 × 6		 219.1× 168.3
8.625 × 6.625		 300
2.07		 77.8/17500 0-3.2
0-0.13		 260
10.24		 338
13.31		 60
2.36		 2 - 3/4 x 115
2 - M20X115