Product

Thundaflo

SPEL Thundaflo is a heavy-duty channel drainage system (aka trench, linear or slot), uniquely designed for the industrial environment – forecourts, forklift working areas, truck loading bays, airports.


Available in 125mm, 200mm, & 300mm Widths.

SPEL Thundaflo
SPEL Thundaflo
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Thundaflo - 125 Series

Diagrams & Specifications

Gratings

Inline Sump (125 ILS)

125-series-inline-sump Cut the hole for the outlet with a hole saw and if required seal the gap between the hole and outlet pipe with:

  • Silicon Sealant
  • Denso Tape
  • UniSeal™
…prior to the concrete pour.

Installation Guide – Key Measurements

125-series-installation-guide

 

* This diagram is a guide only. Site conditions and application vary therefore if in doubt please consult a registered engineer

Data Sheets

125-series-spel-thundaflo-data-sheet_Page_1 125-series-spel-thundaflo-data-sheet_Page_1

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Thundaflo - 200 Series

Diagrams & Specifications

Gratings

Inline Sump (200 ILS)

 

Cut the hole for the outlet with a hole saw and if required seal the gap between the hole and outlet pipe with:

 

  • Silicon Sealant
  • Denso Tape
  • UniSeal™

…prior to the concrete pour.

Installation Guide – Key Measurements

* This diagram is a guide only. Site conditions and application vary therefore if in doubt please consult a registered engineer

Data Sheets

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Thundaflo - 300 Series

Diagrams & Specifications

Gratings

Inline Sump (300 ILS)

Cut the hole for the outlet with a hole saw and if required seal the gap between the hole and outlet pipe with:

 

  • Silicon Sealant
  • Denso Tape
  • UniSeal™

…prior to the concrete pour.

Installation Guide – Key Measurements

* This diagram is a guide only. Site conditions and application vary therefore if in doubt please consult a registered engineer

Data Sheets

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Thundaflo Unique Robust Design

  • Three Metre Modular Sections
  • Independent Positioning System
  • Grating design to suit application
  • Unique Design Dissapates Loading
  • Unique rugged steel design
  • Variable Built-in-fall & Zero Gradient
  • Heavy Duty Class E400 (AS3996) Grating
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Thundaflo Easy Installation

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Thundaflo Replacing Damaged Poly-Modular Drain

The broken down poly-modular drain. The key problem is that the drain has parted company with the concrete surround and imploded. It appears that several attempts have been made to resurrect the drain, a very expensive and unsuccessful exercise!

A close up view of the broken poly-modular drain where the walls of the drain have imploded. We observe this problem occurring with many of these types of drains and is the reason SPEL Thundaflo is reinforced with a 5mm thick steel rim.

Breaking out the damaged poly-modular. A saw cut is made down each side of the broken poly-modular drain and then dug out.

The trench is dug to approx 150mm below the channel depth (200mm wide drain) taking into account the built-in-fall. Holes are drilled for the rebar stirrups.

Rebar is inserted into the holes and cemented with epoxy resin.

Rebar is tied to form stirrups. The bottom of the stirrups needs to be about half the distance between the bottom of the channel and the trench bottom. 125mm Width, 60mm from the bottom of the channel & 200mm width, 75mm from the bottom of the channel.

SPEL THUNDAFLO is positioned using the Independent Positioning System (IPS) to adjust the height.

Torsion springs can be attached to the bottom of the fibreglass rod to form a “foot” where soil conditions are unsuitable (either too soft or rocky) for the fibreglass rods to be hammered into the ground.

The fibreglass rods are trimmed to below the surface.

The top torsion spring is engaged to prevent the system from floating during the concrete pour.

Poly is inserted into the frame to prevent the ingress of wet concrete into the channel and assist with screeing.

Fibreglass rod is cut to length and the wedged between the frame and the side of the trench to firmly brace the system. A very flexible and effective method to ensure there is no movement while during the concrete pour.

Start of concrete pour. Note how well the poly insert is preventing the ingress of concrete into the channel. A major hassle to clean if this should occur!

A single concrete pour is made in two stages. The 1st stage is to the bottom of the channel and final stage is to the top. The is to mitigate upward hydraulic pressure and prevent the system from floating.

Wet concrete everywhere… Note how well the poly insert prevents the ingress of concrete into the channel

Finishing off: The poly inserts greatly assist in screeing the concrete.

Poly insert removed; grates are inserted…rock solid for many years

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Thundaflo Superior Hydraulics

Thunda-River

SPEL thundaflo

Higher Gradient / Velocities where Flow Rates are Low.

Thunda-Torrent

SPEL thundaflo

Super Steep, High Velocity, and Self Cleaning. This is ideal for short runs, particularly entrance Ways where road debris is an issue.

Length Adjustment

SPEL thundaflo

  • Overall Length (0.5 L/m multiples) is adjusted at the start (R1).
  • Custom lengths < 0.5L/m multiples can be supplied to order

Standard Widths

125 Series: Nominal Width = 125mm

200 Series: Nominal Width = 200mm

300 Series: Nominal Width = 300mm

Quote Request Form

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In Action

The proof is in the pudding. We invite you to take a moment to review our case studies, projects, videos and images showcasing the SPEL Thundaflo.

spel thundaflo
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Lake Burley Griffin West Basin Waterfront Upgrade

  Project: West Basin ACT Project Council: ACT Government Products: SPEL Thundaflo   Problem The client badly needed an upgrade for their drain system, specifically …

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SPEL Thundaflo at Mobil Petrol Station, Western Sydney

  Products: SPEL Thundaflo

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How we can help

Work with our experienced team of engineers and consultants on your next WSUD or stormwater treatment project.

Design assistance, complimentary modelling, installation, and maintenance packages. Contact us for an obligation free quote.

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