Tapping Bands

Tapping Bands & Nuts

Material: Low Lead Gunmetal (LLLG2) BS1400:1986-BS EN1982:1999. AS2738-2000. Alloy C83600A.

Chemical Composition % (Nominal):
Copper 84-86 %
Tin 4-6 %
Zinc 4-6 %
Lead 4.5 % Max

Meet the following Standards:

• AS/NZ 2345 – 2006 Dezincification Resistant
• AS/NZ 4020 – 2005 Potable Water Contact
• AS2738 – 2000 Alloy Standard C83600A (Low Lead Gunmetal)

LIP SEALS AND ‘O’ RINGS

Material: Nitrile Rubber

Meet the following Standards:

• AS1646.1 – 2000 Elastomeric Seals for waterworks purposes
• AS/NZ 4020 – 2005 Potable Water Contact

Service Conditions:
Maximum Pressure Rating of 2068 KPa (300PSI)
Maximum Water Temperature of 50° C

Quality:
Giltech Tapping Bands are manufactured to the strictest quality standards in our ISO9001:2015 (LIC 108) accredited foundry.
The Tapping Band’s ample width and pre-formed radius provides greater distribution of clamping pressure to avoid crushing the pipe.
Giltech Tapping Bands have the approval of most Local Authorities; the main one being MANARC (Manakau City Council Approval MW7).

Advantages:

• Corrosion Resistant
• Resistant to seawater
• Dezincification Resistant
• Weather resistant
• Resistant to other materials which attack traditional materials
• Excellent fatigue resistance
• Resistant to vibration pump loads and water hammer
• Resistant to damage in transport and storage
• Giltech Tapping Bands are widely used in New Zealand and are exported to Australia, the Middle East, and the Pacific Islands.
• They are suitable for water reticulation and irrigation where their strength helps avoid damage by farm implements, live stock etc.

Installation Instructions:

• Make sure the pipe is clean and free from dirt or other contaminants and has no grooves or other irregularities such as weld beads or indentations on it.
• Fit the Tapping Band around the pipe and hand tighten the 2 nuts.
• Tighten the nuts to approximately 20 Newton metres or 15 foot pounds.
• This can be achieved by giving the nuts a firm turn with a 200/250mm adjustable spanner or equivalent.
• Note: When properly tightened there will still be a gap between the top and bottom band. This gap allows for the manufacturing tolerances of the outside diameter of the pipe.
• DO NOT OVER TIGHTEN the nuts.
• DO NOT use tools such as rattle guns as over tightening the nuts could damage the tapping band.
• If after tightening a leak is evident – check the pipe and seal to find the cause.
• Continuing to tighten the band WILL NOT fix the problem.