Fernco Drain Couplings, also known as Flexseal couplers, are efficient and straightforward connectors used primarily in unadopted or private drainage systems. They are designed to connect two pipes with the same or similar (within 10mm) outside diameter, making them ideal for connecting plain-ended pipes or for repairing existing pipe systems by replacing short sections of pipe.
Key Features
Ease of Installation: Notable for their simple fitting process, these couplings can be easily installed without specialized skills.
Versatility: Suitable for a variety of applications, including housing sites, private roads, and agricultural lands.
Airtight and Watertight Seal: Once installed, they provide a completely airtight and watertight connection, ensuring the integrity of the drainage system.
Durable Material: Made from a moulded EPDM rubber body and stainless steel clamp bands, offering robustness and longevity.
Cost-Effective Solution: Provides an inexpensive yet reliable option for connecting unadopted drainage pipes.
Specifications
Size Range: Available in sizes from 40mm to 275mm, catering to a wide range of pipe diameters.
Material Composition: EPDM Rubber and 1.4301 (304) Stainless Steel for enhanced durability.
Temperature Range: Suitable for temperatures from -50°C to 80°C continuously, and up to 100°C intermittently.
Jetting Resistance: Can withstand jetting pressures up to 180 bar.
Pressure Rating: Rated for 0.6 bar (8.70 psi).
Standards Compliance: Meets BS EN 681-1:1996, BS EN 295-4:2013, and BS EN 10088-2:1995 standards.
SKU
Fernco Code
Size (mm)
Torque
Max diff between pipes OD’s (mm)
484491
DC050
40 - 50
6Nm
10
484492
DC065
50 - 65
6Nm
10
484493
DC075
60 - 75
6Nm
10
484494
DC095
80 - 95
6Nm
10
484495
DC115
100 - 115
6Nm
10
484496
DC125
110 - 125
6Nm
10
484497
DC135
120 - 135
6Nm
10
484498
DC150
135 - 150
6Nm
10
484499
DC165
150 - 165
6Nm
10
484500
DC175
160 - 175
6Nm
10
484501
DC185
170 - 185
6Nm
10
484502
DC195
180 - 195
6Nm
10
484503
DC215
200 - 215
6Nm
10
484504
DC225
210 - 225
6Nm
10
484505
DC250
235 - 250
6Nm
10
484506
DC265
250 - 265
13Nm
10
484507
DC275
260 - 275
13Nm
10
How and Where to Install
The Fernco Drain Coupling is straightforward to install:
Positioning: Align the coupling over the ends of the two pipes to be connected.
Securing: Use a nut driver and torque wrench to tighten the stainless steel clamp bands around the pipes.
Checking: Ensure a snug fit to create an effective airtight and watertight seal.
Note on Usage: While Fernco Drain Couplings are ideal for unadopted drainage systems, they are not suitable for adopted drainage systems managed by highway agencies, water companies, or local authorities. In these cases, Fernco’s Shear Banded Couplings should be used as per WIS 4-41-01 specifications.
Downloads
Fernco Drain Coupling Datasheet
If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.