8.50 [1N Standard Flexible Couplings] [FM, UL, VdS, CNBOP] Red.jpg 8.50 [1N Standard Flexible Couplings] [FM, UL, VdS, CNBOP] Galvanised.jpg

1N Standard Flexible Coupling

  • FM Approved Logo Mid Grey 300.jpg
  • UL Logo Mid Grey.jpg
  • VdS Logo mid grey 2.jpg
  • CNBOP-B Logo - Grey.jpg
  • gost logo 300.jpg
Size range DN25 to DN300 (1" to 12")
Maximum working pressure Up to 20.7 bar (300 psi)*

*depending on size and certification, please refer to Data Sheet 8.50
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, CNBOP, Gost

Rapidrop Grooved couplings and fittings are used in the assemby of grooved piping systems. They are available in painted and galvanised finishes and are FM, UL, VdS, LPCB and CNBOP approved. The Rapidrop type 1N flexible couplings are pressure rated to 500psi and are used where movement in the pipework is expected. 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
25
1		 33.7
1.327		 500
3.45		 3.0/680 0-1.6
0-0.06		 55
2.16		 92
3.62		 42
1.65		 2 - 3/8 x 55
2 - M10X57
32
1¼		 42.4
1.669		 300
2.07		 2.9/650 0-1.6
0-0.06		 65
2.56		 104
4.14		 44
1.74		 2 - 3/8 x 55
2 - M10X57
40
1½		 48.3
1.900		 300
2.07		 3.8/850 0-3.2
0-0.13		 70
2.75		 110
4.33		 44
1.74		 2 - 3/8 x 55
2 - M10X57
50
2		 60.3
2.375		 300
2.07		 5.9/1330 0-3.2
0-0.13		 83
3.27		 125
4.92		 44
1.74		 2 - 3/8 x 55
2 - M10X57
65
2½		 76.1
3.000		 300
2.07		 9.4/2120 0-3.2
0-0.13		 100
3.94		 145
5.71		 45
1.78		 2 - 3/8 x 55
2 - M10X57
80
3		 88.9
3.500		 300
2.07		 12.8/2885 0-3.2
0-0.13		 115
4.53		 160
6.30		 45
1.78		 2 - 1/2 x 70
2 - M12X70
100
4		 114.3
4.500		 300
2.07		 21.2/4770 0-3.2
0-0.13		 145
5.71		 198
7.80		 50
1.97		 2 - 1/2 x 70
2 - M12X70
125
5		 139.7
5.500		 450
3.10		 47.5/10680 0-3.2
0-0.13		 169
6.65		 230
9.06		 52
2.05		 2 - 5/8 x 85
2 - M16X85
150
6		 168.3
6.625		 300
2.07		 46.0/10340 0-3.2
0-0.13		 200
7.87		 265
10.43		 52
2.05		 2 - 5/8 x 85
2 - M16X85
200
8		 219.1
8.625		 450
3.10		 116.9/26280 0-3.2
0-0.13		 258
10.24		 350
13.78		 60
2.37		 2 - 3/4 x 115
2 - M20X115
250
10		 273.0
10.750		 300
2.07		 121.0/27210 0-3.2
0-0.13		 337
13.27		 406
16.00		 65
2.56		 2 - 7/8 x 125
2 - M22X140
300
12		 323.9
12.750		 300
2.07		 170.3/38280 0-3.2
0-0.13		 378
14.96		 465
18.31		 65
2.56		 2 - 7/8 x 125
2 - M22X140