Flexseal Couplings

Since its inception in 1989, Flexseal has been at the heart of the civils and drainage sectors, playing a vital part in shaping the way contractors repair and refurbish drainage and sewer pipelines across the globe. With a 30 year reputation for supplying high quality products, Flexseal offers a service to match and operates with a spirit of innovation across all areas of the company. With a solution for any scenario, Flexseal’s coupling portfolio is vast and comes with the assurance of over 30 years of rigorous testing.

Shear Banded Couplings

Shear Banded Couplings

Flexseal manufactures the most extensive range of Shear Banded Couplings available in the marketplace and has revolutionised traditional pipe repair methods over the years. Flexseal shear banded couplings are specifically designed to connect and repair pipes on adopted sewer and drainage applications.

Shear banded couplings are a requirement of the UK water companies when connecting onto their assets. This requirement forms part of Water Industry Specification (WIS) 4-41-01, which outlines the requirements to connect pipes on adopted systems using only shear banded couplings.

The shear band on this range of couplings gives the connection added protection against shear loads that could cause the pipes to become mis-aligned.

Approvals

All Flexseal Standard Couplings are manufactured in accordance to ISO 9001:2015 and comply with BS EN 295-4:2013 and WIS 4-41-01, suitable for private and adopted (public) drainage and sewers.

Materials

EPDM – certified to BS EN 681:1: Elastomeric seals – Material requirements for pipe joint seals used in water and drainage applications.

1.4301 (304) Stainless Steel – certified to BS EN 10088-2.

Couplings with a different material makeup are available on request.

Applications

When used individually or combined with bushes, Flexseal Standard Couplings have many applications in the construction, repair and maintenance of pipe systems:

  • As a joint for plain ended pipes
  • Repair and maintenance of existing pipelines
  • Connecting short and cut lengths of pipe
  • Making post construction connections to an existing pipeline
  • Reconnection of laterals on renovated sewers
  • Introducing a rocker pipe outside manholes or structures
  • When used with bushes can accommodate differing pipe diameters

Benefits

  • Withstands an internal pressure of up to 2.5 bar
  • A proven, tested and durable coupling design ensuring a high performance and a reliable connection
  • Stainless steel shear band provides excellent resistance to heavy loads and shear forces to ensures joint integrity and pipe alignment
  • Complies with WIS 4-41-01 (all public sewers and sewers for adoption)
  • Complies with BS EN 295 Part 4 & EN681-1: 1995 requirements for vitrified clay pipes and fittings

Product Code

Size Range (mm)

Tightening Torque

Maximum difference between pipes OD’s (mm)

SC65

50 - 65

6Nm

6

SC75

60 - 75

6Nm

6

SC85

70 - 85

6Nm

6

SC95

80 - 95

6Nm

6

SC115

100 - 115

6Nm

6

SC120

105 - 120

6Nm

6

SC125

110 - 125

6Nm

6

SC137

122 - 137

6Nm

6

SC150

125 - 150

6Nm

6

SC165

140 - 165

6Nm

6

SC175

150 - 175

6Nm

6

SC185

160 - 185

6Nm

6

SC200

175 - 200

6Nm

6

SC215

190 - 215

13Nm

6

SC225

200 - 225

13Nm

6

SC250

225 - 250

13Nm

6

SC265

240 - 265

13Nm

6

SC275

250 - 275

13Nm

6

SC290

265 - 290

13Nm

6

SC310

285 - 310

13Nm

8

SC320

295 - 320

13Nm

8

SC335

310 - 335

13Nm

8

SC345

320 - 345

13Nm

8

SC360

335 - 360

13Nm

8

SC370

345 - 370

13Nm

8

SC385

360 - 385

13Nm

8

SC395

370 - 395

13Nm

8

SC410

385 - 410

13Nm

8

SC425

400 - 425

13Nm

8

SC430

405 - 430

13Nm

8

SC445

420 - 445

13Nm

10

SC450

425 - 450

13Nm

10

SC465

440 - 465

13Nm

10

SC470

445 - 470

13Nm

10

SC490

465 - 490

13Nm

10

SC510

485 - 510

13Nm

10

SC525

500 - 525

13Nm

10

SC540

515 - 540

13Nm

10

SC550

525 - 550

13Nm

10

SC560

535 - 560

13Nm

10

SC570

545 - 570

13Nm

10

SC580

555 - 580

13Nm

10

SC600

575 - 600

13Nm

10

SC620

595 - 620

13Nm

10

Bushes can be used to accommodate differences between pipe OD’s which fall outside the limitations of the coupling

 

Drain Couplings

Drain Couplings

Flexseal Drain Couplings, sometimes referred to as couplers, are simple, easy to use drainage pipe connectors. Drain Couplings are designed to connect two pipes with the same or similar (within 10mm) outside diameter.

  • Easy to fit
  • Simple and versatile
  • Completely airtight and watertight connection
  • Can be used to connect plain ended pipes
  • Repair of existing pipe systems by replacing short sections of pipe
  • An inexpensive option for unadopted (private) drainage pipes

Product Code

Size Range (mm)

Tightening Torque

Maximum difference between pipes OD’s (mm)

DC50

40 - 50

6Nm

10

DC65

50 - 65

6Nm

10

DC75

60 - 75

6Nm

10

DC95

80 - 95

6Nm

10

DC115

100 - 115

6Nm

10

DC125

110 - 125

6Nm

10

DC135

120 - 135

6Nm

10

DC150

135 - 150

6Nm

10

DC165

150 - 165

6Nm

10

DC175

160 - 175

6Nm

10

DC185

170 - 185

6Nm

10

DC195

180 - 195

6Nm

10

DC215

200 - 215

6Nm

10

DC225

210 - 225

6Nm

10

DC250

235 - 250

6Nm

10

DC265

250 - 265

13Nm

10

DC275

260 - 275

13Nm

10

 

Adaptor Couplings

Adaptor Couplings

Flexseal Adaptor Couplings, sometimes referred to as reducer couplings, are designed to connect unadopted drainage pipes with different outside diameters – connecting larger drainage pipes to smaller drainage pipes and vice versa.

  • Provides a quick and efficient method of connecting pipes of different materials and outside diameters
  • Reliable, tried and tested products
  • Large variety of sizes for a multitude of pipe configurations

Product Code

Size Range (mm)

Tightening Torque

Maximum difference between pipes OD’s (mm)

AC633

53 - 63

40 - 50

 6Nm

AC894

75 - 89

53 - 63

6Nm

AC1155

100 - 115

75 - 90

6Nm

AC1201

105 - 120

35 - 45

6Nm

AC1225

110 - 122

48 - 56

6Nm

AC1226

110 - 122

60 - 68

6Nm

AC1221

110 - 122

80 - 95

6Nm

AC5144

110 - 125

100 - 115

6Nm

AC1361

121 - 136

80 - 95

6Nm

AC1362

121 - 136

100 - 115

6Nm

AC4000

121 - 136

110 - 121

6Nm

AC1452

130 - 145

110 - 125

6Nm

AC1552

140 - 155

90 - 105

6Nm

AC1602

144 - 160

110 - 122

6Nm

AC1603

144 - 160

121 - 136

6Nm

AC1702

155 - 170

110 - 125

6Nm

AC1703

155 - 170

130 - 145

6Nm

AC1922

170 - 192

110 - 122

6Nm

AC1923

170 - 192

121 - 136

6Nm

AC1924

170 - 192

144 - 160

6Nm

AC2000

180 - 200

130 - 145

6Nm

AC6001

180 - 200

144 - 160

6Nm

AC2001

180 - 200

155 - 170

6Nm

AC6000

180 - 200

160 - 180

6Nm

AC2100

185 - 210

100 - 115

6Nm

AC2101

185 - 210

160 - 180

6Nm

AC2152o/s

195 - 215

100 - 115

6Nm

AC3108W

285 - 310

240 - 265

6Nm

AC2154

190 - 215

150 - 165

6Nm

AC2254

200 - 225

160 - 175

6Nm

AC2352

210 - 235

110 - 122

6Nm

AC2353

210 - 235

121 - 136

6Nm

AC2354

210 - 235

144 - 160

6Nm

AC2355

210 - 235

170 - 192

6Nm

AC2356

210 - 235

190 - 215

6Nm

AC2654

240 - 265

144 - 160

6Nm

AC2655

240 - 265

170 - 192

6Nm

AC2656

240 - 265

190 - 215

6Nm

AC2657

240 - 265

210 - 235

6Nm

AC2754

250 - 275

160 - 175

6Nm

AC2756

250 - 275

200 - 225

6Nm

AC9001

260 - 285

180 - 205

13Nm

AC2904

265 - 290

144 - 160

13Nm

AC2907

265 - 290

 210 - 235

13Nm

AC2908

265 - 290

235 - 260

13Nm

AC2956o/s

270 - 295

185 - 210

13Nm

AC3204

295 - 320

144 - 160

13Nm

AC3205

295 - 320

170 - 192

13Nm

AC3207

295 - 320

 210 - 235

13Nm

AC3208

295 - 320

240 - 265

13Nm

AC3209

295 - 320

265 - 290

13Nm

AC3351o/s

310 - 335

180 - 205

13Nm

AC3608

335 - 360

240 - 265

13Nm

AC3609

335 - 360

265 - 290

13Nm

AC3600

335 - 360

295 - 320

13Nm

AC3858

360 - 385

240 - 265

13Nm

AC3859

360 - 385

265 - 290

13Nm

AC3850

360 - 385

300 - 325

13Nm

AC4208

395 - 420

240 - 265

13Nm

AC4209

395 - 420

265 - 290

13Nm

 

Flexseal Product Selector

Flexseal Product Selector

The Flexseal product selector instantly guides customers to the best connection for their specific need. Two to three questions are all that’s asked to find the required product.

Visit: findmy.flexseal.co.uk or download the Flexseal App from the App Store or Google Play.

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