New Zealand Building Code Clause G12: Water Supplies focuses on the safe and hygienic supply of water for buildings, including provisions related to hot water systems. When it comes to cylinder restraint kits, these are primarily associated with securing water heaters, such as hot water cylinders, to prevent damage or hazards during seismic events

We are the professional manufacturer of Cylinder Seismic Restraint Kit in China

Cylinder Restraint Kit could be made in Stainless steel ,Galvanized steel.

Galvanized Cylinder Restraint Kit normally is recommended used in indoor serivce

A cylinder restraint kit is a safety device used to securely store and stabilize gas cylinders, preventing them from tipping over, rolling, or being damaged. Gas cylinders, which store high-pressure gases, can pose significant safety risks if not handled or stored properly. Restraint kits ensure compliance with safety regulations, protect people and property, and reduce the risk of accidents.

Cylinder Seismic Restraint Kit

Galvanized steel 3 Strap Cylinder Restraint Kit is recommended used for indoor service,

The Galvanized Strap Seismic Cylinder Restraint Kit consists of 4 or 6 meters of perforated Galvanized strap and all brackets, bolts, screws & tensioning devices required to make a 2-3 strap installation of this kit.

These are used for Seismic Earthquake Protection and security for hot water cylinders and storage vessels, as well as meeting requirements for the restraint of new installation


Our water heater strap is suitable in seismic suppression, offering an extra layer of safety to ensure your heater remains stationary during seismic episodes.

Specifications:
Material: galvanized or stainless steel

Contents of KitAmount Supplied
Perforated Steel Strap     2 Meters
Mounting Brackets    x 2
14g x 55mm Screws (Type 17)    x 2
M5 x 12mm Bolts & Nuts    x 4
Tensioning Device    x 1
Vessel Capacity (Litres)No. of Straps Required
Up to 200    2
200 – 360    3
360 – 500    4
500 – 600    5
600 – 700    6
When in Excess of 12m above ground level    As Above +1

All cylinders, as per G12, must be suitably restrained against seismic activity.

Hot water cylinder seismic restraint installation

 NZBC B1.3.2 standard requires building elements (including storage water heaters) to be adequately supported including support against earthquake forces. The method illustrated in Figure 14 is acceptable for water heaters up to 360 litre capacity. Where fittings and pipework are attached to the water heater through the supporting platform or floor a 50 mm minimum clearance shall be provided between the fitting and the support structure. 6.11.5 An alternative acceptable solution for securing storage water heaters against seismic forces is given in Section 203 of NZS 4603.

Seismic Restraint of Storage Water Heaters 90 – 360 litres

Restraints and fixings


G12/AS1 provides seismic restraint methods for water heater storage tanks with a capacity up to 360 litres in light timberframed construction – those designed according to NZS 3604:2011 Timber-framed buildings. Storage tanks with a capacity greater than 360 litres are outside the scope of G12/AS1 and may require an Alternative Solution for building consent purposes