Tapping Band: Ductile Iron – Installation Manual – Reference Guide
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Technical Information
Applications
Clover ductile iron tapping bands are designed for allowing connections of water service pipes to pipeline.
Typical applications include;
- Water and wastewater;
- Below and above ground.
Clover ductile iron tapping bands can be used on a wide range of pipe materials including:
- DICL;
- CICL;
- OPVC;
- MPVC;
- UPVC;
- PE;
- Asbestos Cement (AC).
They are designed for use on both flexible pipelines (Type F) and rigid pipes (Type R).
Features and Benefits
| Features | Benefits |
| One tapping band for use on both DICL and Series 2 PVC Pipes | |
| Full circle design with positive stop | Prevents over-tightening during installation, which can be crucial to avoid damage to flexible pipes |
| Lead Free (DZR) Tapping Boss | Long-term corrosion resistance and performance |
| Extensive inventory available for immediate delivery | Fast and flexible supply to meet project demands |
| 316 Stainless Steel Fasteners with Anti-Seize coating for anti-galling protection | Long-term corrosion resistance and performance |
Compliance
- AS/ZS 4793:2020 “Mechanical tapping bands for waterworks purposes”
- AS/NZS4158 “Thermal-bonded polymeric coatings on valves and fittings for water industry purposes”
- AS/NZS 4020 “Testing of products for use in contact with drinking water”
- AS ISO 7.1 “Pipe threads where pressure-tight joints are made on the threads Dimensions, tolerances and designation
- WSA PS 310 “Tapping Bands-Mechanical for Pressure Applications – Water Supply”
Product & Watermark Certification
The ductile iron tapping band range is manufactured and is independently third-party certified to AS 4793:2020 “Mechanical tapping bands for waterworks purposes”
Accreditation body: Approvalmark International – AMI 75052
Suitability for Use with Potable Water (AS/NZS4020 Compliance)
Clover ductile iron tapping bands are suitable for potable water applications and comply with the requirements of AS/NZS4020 “Testing of products for use in contact with drinking water”.
WSAA Purchase Specification
Clover ductile iron tapping bands comply with the requirements of the following WSAA Purchase Specification:
- WSA PS310 – Tapping Bands – Mechanical for pressure applications – Water Supply
WSAA Product Appraisal
Clover ductile iron tapping bands are independently appraised and recommended by the Water Services Association of Australia (WSAA);
- Product Appraisal 2511
Diameter Range
DN100–DN300: Suitable for DICL, OPVC, MPVC, UPVC, CICL & Asbestos Cement (AC)
PE125 & PE180: Suitable for PE Pipe
For tapping bands with larger diameters please contact Clover for additional technical and pricing information.
Pressure
Clover ductile iron tapping bands are manufactured with a standard nominal pressure range of PN16 (1,600kPa).
Coating
Ductile iron tapping band bodies are manufactured with a thermally bonded polymeric coating for long life corrosion protection.
| Item | Part Name | Material |
| 1 | Upper Tapping Band Body | Polymeric Thermal Bonded Coated Ductile Iron |
| 2 | Upper Tapping Band Body | Polymeric Thermal Bonded Coated Ductile Iron |
| 3 | Tapping Boss | Lead free (DR) Brass, 316 Bolting & EPDM Seal |
| 4 | O-ring Seal | Rubber (EPDM) |
| 5 | O-ring – Bolt retainer | Rubber (EPDM) |
| 6 | Bolt | 316 Stainless Steel |
| 7 | Nut | 316 Stainless Steel with Anti-Seize Coating |
| 8 | Washer | 316 Stainless Steel |
New image in here
Series 2
Compatible with DICL, CICL, OPVC, MPVC, UPVC, Asbestos Cement (AC) Pipes
| DN | Product Code | Nominal Tapping Band ID (mm) | |
| 20BSP | 25BSP | ||
| 100 | TCDAC100020 | TCDAC100025 | 122 |
| 150 | TCDAC150020 | TCDAC150025 | 177 |
| 200 | TCDAC200020 | TCDAC200025 | 232 |
| 225 | TCDAC225020 | TCDAC225025 | 259 |
| 250 | TCDAC250020 | TCDAC250025 | 286 |
| 300 | TCDAC300020 | TCDAC300025 | 345 |
Polyethylene
| DN | Product Code | Nominal Tapping Band ID (mm) | |
| 20BSP | 25BSP | ||
| 100 | TCDPE125020 | TCDPE125025 | 125 |
| 150 | TCDPE180020 | TCDPE180025 | 180 |
| 280 | TCDPE280020 | TCDPE280025 | 280 |
End Connections
Clover ductile iron tapping bands are available with tapped outlet connections with either ¾” or 1” BSP tapped parallel thread to AS ISO 7.1 “Pipe threads where pressure-tight joints are made on the threads Dimensions, tolerances and designation”.
Pressure
| Nominal Pressure (PN) | Allowable Operating Pressure (AOP) | Maximum Allowable Operating Pressure (MAOP) | Allowable Site Test Pressure (ASTP) |
| 16 | 1,600 kPa | 1,920 kPa | 2,000 kPa |
Maximum Operating Temperature
40°
Options & Accessories
Extensive local inventory of a wide range of associated ferrules, ball valves and accessories is available.
Contact Clover for further information.
Mechanical Properties – Ductile Iron
| Property | Value & Unit |
| Ultimate tensile strength (Minimum) | 500MPa |
| Elongation (Minimum) | 10% |
| Density (Specific Gravity) | 7.1 |
Mechanical Properties - Coating
| Property | Value & Unit |
| External Surface | 350 Microns |
| Internal Surface | 350 Microns |
Life Expectancy
100 years
Installation, Operation & Maintenance
- Place the Lower Body: Position the Lower Body of the tapping band onto the pipe. The bolts will be retained with O-rings. Adjust the O-rings if needed to hold the bolts in place. (Fig. 1).
- Attach the Upper Body: Carefully align and position the Upper Body over the bottom section. Ensure O-Ring seal is correctly positioned/seated. While holding both halves in place, finger-tighten the nuts evenly. Ensure the gap between the bolting legs of the tapping band is evenly spaced on both sides. (Fig. 2 & 3).
- Now position the top half of the tapping band and align and fit to the bottom, ensure that the seal is positioned correctly, as shown. Whilst holding the bottom tapping band in position and the top in place, finger tighten the nuts until the tapping band halves are evenly positioned around the pipe, leaving an even gap on each side of the tapping band feet. (Fig. 3).
- Final positioning and torque: Check location of tapping is correctly positioned on pipe. Confirm the tapping band’s opening is correctly aligned with the drilled opening on the pipe or location for under-pressure tapping. Tighten bolts evenly to 60 Nm. The tapping band should now sit full circle around the pipe for plastic pipes (Type F) (Fig. 4). A small gap is permitted for metallic pipes + AC (Type R).
 Fig 1. |
 Fig 2. |
 Fig 3. |
 Fig 4. |
Installation Training
Clover’s in-house engineering team provides a range of training, accreditation and technical support services.
The Clover Academy installation training course provides installers with important information relating to the correct handling, installation, testing, maintenance and repair of Clover pipe systems and products.
Contact the Clover engineering team to discuss scheduling a training program.
Technical Support
Clover’s in-house engineering team combines specialist technical knowledge, creative thinking and on-the-job experience, to offer our clients a range of project planning and consultation services.
From recommendations on product innovations, to crafting complex end-to-end solutions, our collaborative approach bridges the gap between contractors, authorities and suppliers. The only Australian provider able to offer clients the full product suite, Clover offers unbiased, strategic insights that always consider the bigger picture.
From initial planning, to onsite training and technical assistance, we offer input across every stage of your project’s timeline. Our contribution continues beyond the project design, and we remain accessible for ongoing changes and developments over the course of each project.
We work with contractors, asset managers, local councils and government, developers and other pipeline professionals to specify bespoke product solutions. By engaging our team of engineers, you gain access to unparalleled product knowledge and expertise.
Technical Documents
Tapping Band: Ductile Iron – Data Sheet
PDF, 296.0K
Clover Ductile Iron Tapping Bands – WSAA Appraisal
PDF, 392.6K