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

 

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

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

 

Product Code Size Range (mm) Tightening Torque Maximum difference between pipes OD’s (mm)

SC65

50-65 6Nm 6
SC75 65-75 6Nm 6
SC85 75-85 6Nm 6
SC95 85-95 6Nm 6
SC115 110-115 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

 

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

 

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 bwtween 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 180-200 130-145 6Nm
AC6000 180-200 160-180 6Nm
AC2100 185-210 100-115 6Nm
AC2101 185-210 160-180 6Nm
AC1252o//s 195-215 100-115 6Nm
AC3108W 285-310 240-265 6Nm
AC2154 190-215 150-165 6Nm
AC2254 200-255 160-175 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
AC2567 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 270-295 186-210 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 310-355 180-205 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

 

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.