When it comes to streetware castings, there is one brand name that quickly comes to mind: Hynds.
Hynds Pipe Systems Limited is New Zealand’s premier supplier of water and water-based waste management systems for civil, rural and infrastructure applications. This massive family business has built a name and a strong culture through innovation and partnership, which evidently shows in the quality and durability of their products.
To date, Hynds has a nationwide network of 32 merchant branches and over 40,000 product lines, including a full range of innovative Streetware products.
The brand offers a comprehensive range of spun and precast products that include:
- Traditional cast iron manhole cover and frame sets
- Cast iron manhole grates, inspection covers, carriageway covers
- Stormwater grates
- Safety grilles
- Surface boxes
- Kerb and channel grates
All of their products meet currently recognised Australian Standards AS3996-2006 and European Standards EN 124, as well as the loading requirements specified in Transit NZ’s HN-HO-72 standards.
Hynds’ castings load rated for a wide range of applications, from light duty pedestrians to heavy duty carriageway locations, and extreme heavy duty and trafficable airport runways. For your reference, here are the internally approved load classifications:
Cast iron is traditionally used for manhole covers for its robust and reliable nature. Hynds use Gray (Flake Graphite) Grade T220 cast iron in most of their infrastructure castings, making sure the design and quality meets both municipal and regional specific standard requirements. Currently, they are supplying manhole access covers and frames specifically to the council standards of Napier, Palmerston North, Christchurch, Queenstown and Invercargill regions.
Among its product lines are:
- Cast Iron Access Covers (Class B and Class D loads)
With a 450-500mm clear opening, these access covers easily retrofit into existing concrete manhole tops, with a choice of flat or spigoted frames. There’s also a complementary range of circular manhole grates for these access covers.
- Hytech Manhole Cover and Frame Sets
NZ’s local authority called for cast iron streetware products to be manufactured to a recognised standard and tested by an independent third party. Hynds responded with its Hytech range, which carry the NZ Standards Mark and accredited by OPUS International Consultants. Each product in the range is load tested to Australian Standard AS3996.
- Cast Iron inspection Covers (Class A load)
This range consist of light duty, non trafficable inspection covers and frames for grease traps, electrical pits and other areas where regular maintenance is required. The inspection covers can be made watertight and airtight by adding a silicon sealant. It’s locked down with stainless steel allen head screws to prevent theft or unauthorised access.
- Cast Iron Storm Water Grates (Class B to D loads)
These grates are suited to the standard range of concrete cesspits and sized to suit standard sump range. For 675x450mm sump sets, you can have the option for adding anti-theft brackets and screws.
This particular range is compatible with all regional council requirements for Whangarei, Bay of Plenty, Hamilton, Palmerston North, Napier, Wellington, Christchurch, Queenstown, Dunedin and Invercargill.
- Non Slip Heelguard Grates (Class A and Class D loads)
Particularly suited for pedestrians and areas with expected heavy foot traffic, this range features non-slip epoxy coating and long-lasting galvanised steel construction. Hynds’ Heelguard grates have a flat-edged frame to ensure ease of use with concrete/asphalt pavers, and are compatible with standard concrete sumps.
Grate and frames sets are available for trenches and cesspits.
- Manhole Safety Grilles
Hynds supply two Watercare-approved brands of stormwater and manhole safety grilles: Caliber and Impact. Both can be retrofitted into existing and new manholes, but Impact grilles can be adjusted to suit a wide range of opening sizes.
- Surface Boxes
A full range of surface boxes made for hydrants, lampholes, pressure sewers, valves and Toby boxes, all of which meet regional and municipal council requirements.
- G.A.T.I.C Range
Sourced from internationally recognised manufacturers, the products in this range are gas, water and airtight with load ratings from Class B (Pedestrian) to Class F/G (Airports/Ports).The Infilled/Solid Top Covers and Decorative Edged Covers feature machined mating surfaces and decorative edge (on request). It comes in either a single or a multiple-part cover and frame set. There are also options for square, rectangle, tee or cellular frames.Meanwhile, the Xpave Infilled Covers are designed with a deep recess to accommodate thicker pavers as well as to make access points discreet and unobtrusive in pedestrians and trafficable areas. The covers are laser-cut for utmost precision.
Made with Spheroidal Graphite Grade 500/7, the ductile iron access covers in this range are lightweight and robust but 30% lighter than traditional cast iron. Personalisation is the hallmark of this range, with specific council designs already in supply. The system features bolt down security that meet the HN-HO-72 requirements for sewer and stormwater lids.
- Di-Hinged Carriageway Covers
Manufactured in France for high intensity traffic environments, these ductile iron-hinged access cover system exceeds expectations in terms of strength, performance, stability and protection against water ingress.The range features 360-degree EPDM sealing rubber for non-rock stability, cover locks that open at 90 degrees and personalisation options.
There are four models in this range: MAESTRO, TWINO, MAXIMO and SOLO. The first three models are load rated to 400kN, while SOLO is designed to suit higher loadings up to 900kN in industrial settings.
- Ductile Iron Stormwater Grates and Frames (Class D240)
Designed with improved hydraulic capture, higher loadings, cycle friendliness and greater aesthetic appeal in mind, these stormwater system features side-locking frames and anti-theft hinge and bolt. It fits standard concrete sumps.
- Stormwater Kerb and Channel Grates (Class C260)
Manufactured in France, Hynds stormwater grates are cycle friendly and meet special requirements associated with smaller subdivision streetscapes.
For the full product specifications and information, see the Streetware product catalogue.