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Check valves for waste water and raw water service.
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W4.31 Ball Check Valve Technical Guide PDF (292 KB)
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Drainage
Concrete Pipe
Belled Socket Joint
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Other
Manholes
Concrete Benched Manholes
Concrete Standard Manholes
Plastic (PE) Manholes
Manhole Accessories
PVC, PE, PP Pipe & Fittings
CivilBoss® Twin Wall PP Pipe
Hynds PKS Civil Culverts
PVC Pipe & Fittings
Polyethylene Pipe (PE)
Catchpits
Cesspit Units Flat Top & Back Entry
Silt Trap Unit
Megapit®
Hynds Street Catchpit
Outlets & Wingwalls
Wingwalls
WaStop® Check Valve
KiwiSafer™ Culvert Ends
Surface Drainage
Access Covers & Grates
DI Hinged
DI Bolt Down
Composite & Cast Iron
Service Boxes
Sump & Trench Grates
Bespoke PE/PP Pipelines & Structures
Accessories
Precast
Box Culvert Systems
Pinnacle® Rubber Ring Joint Box Culvert
Hynds Box Culvert System
U-Culvert & Base System
South Island Only
Chambers
Dry Storage Bunkers
Telco Pits
Well Liners
Retaining Wall Systems
Gabion (Hynds Stonebox)
Retaining Wall System (Lusit®)
Channel & Ducts
Telco Pits
Hynds Precast Half Round Dish Channel
Concrete Channels & Ducts
Small Precast
Concrete Wheel Stops
Precast Hydrant and Valve Block System
Seawalls
Power Poles
Precast Concrete Segmental Shafts
Well Liners
Bespoke Precast Solutions
Hynds LC® Low Carbon Concrete Range
Watermain
Valves & Hydrants
Air Valves
Ball Valves
Butterfly Valves
Check Valves
Hydrants
Gate Valves
Singer Control Valves
Pipe Fittings
Ductile Iron Fittings
GF Electrofusion & Buttweld
GF iJoint Compression Fittings
Hawle Vario Telescopic Pipe Spool
See All >
Mechanical Couplings
Hawle Synoflex Couplers, Flange Adaptors, & End Caps
Flex-Tend® Flexible Expansion Joint
Nova Siria Multigrip Fittings
Duofit Repair Couplers
See All >
Pipe - PVC, PE, DI & GRP
Polyethylene Pipe (PE)
PVC Pressure Pipe
Seismic Resilient Ductile Iron Pipe
Barrier Pipe & Fitting System
Bespoke PE/PP Pipelines
Repair Clamps & Tapping Bands
R2M cQuick Repair Collar
Hawle Haku PE Pipe Saddle
Rapid Repair Clamps
4N Tapping Bands and Self-tappers
See All >
Water Meters
Flow Meters
Watermain Accessories
Stormwater
Stormwater Treatment
Downstream Defender® Select
Hynds Rain Garden Surround
Up Flo® Filter
Sand Filter
Stormshield
Rain Gardens & Infiltration
Hynds Tree Pit
Ecobloc Stormwater Management
Hynds Rain Garden Surround
Flow Control, Diversion & Monitoring
WaStop® Check Valve
Hydro-Brake® Drop
Hydro-Brake® Optimum and PE
Hynds Smarterwater® Stormwater Sensor
Oil & Water Management
Oil and Grit Interceptor System
API Separator
Aquafix Separator
Smart Chamber
Retention & Detention
Hynds Soakage Manhole
Hynds Retention Tank with Mul-T-Level™ Outlet
Pinnacle® Rubber Ring Joint Box Culvert
Devan Stormvault
Ecobloc Stormwater Management
Bespoke PE/PP Pipelines & Structures
Retention Tank Calculator
New Tool!
Pump Solutions
Aquate Commercial Pump Stations
Aquate Residential Pump Station
Wastewater
Residential
FujiClean Lightweight Aerated Treatment
Lifestyle – Aerated Treatment System
X-Perco – Powerless Treatment System
Oxyfix – Aerated Treatment System
Commercial
FujiClean Lightweight Aerated Treatment
X-Perco – Powerless Treatment System
Oxyfix – Aerated Treatment System
Taylex T 100 Filter
Septic Tanks
Concrete Septic Tank
See All >
Pump Stations
Greasetraps
Instrumentation
Bespoke PE/PP Pipelines & Structures
Rural
Water Reticulation
Troughs
Valves & Fittings
MDPE
LDPE
Plastic Water Tanks
Land Drainage
Land Flow Drainage Coil
Concrete Culverts
PE Culverts
Supaduct Culvert
Well Liners
Laylite Culverts & Fluming
Access Ways
Bridges
Cattle Stops
Underpasses
Stock Control
Cattle Stops
Cattle Grid System
Loading Ramps
Effluent Management
Effluent Pipe and Fitting System
Effluent Wedges
Megapond®
Stonetraps
Dry Storage Bunkers
Stockwater Design
Hynds Rural Deals
Sale
Rural Concrete Farm Seconds
Clearance!
Climate Resilient Infrastructure
Blue/Green Infrastructure
Hynds LC® Low Carbon Concrete Range
Retention & Detention
Stormwater Treatment
Water Meters
Flow Meters
Flooding
Hynds Tree Pit
Hynds Smarterwater
Retaining Wall Systems
Hynds Box Culvert System
Storm Surge & Coastal Erosion
Seawalls
Retaining Wall Systems
Solutions Overview
Drought
Retaining Wall Systems
Retention & Detention
Projects
Resources
Contact Us
Branch Locator
MyHynds
Login
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