logo

Call us now: 01604 779017

Headwall FAQ's

How to order headwalls

Permashutter headwalls are available via our distributors and also direct from us.

You can obtain a quote for headwalls and ancillaries online.

Click the button and complete the online quote / order form.

Get Prices

Alternatively you may telephone us on 01604 779017

 

Headwall HW450C Technical Data

Headwall HW450C Technical Data -

Overall Dimensions: H 1625   W 7000   D 1400

Overall weight: approx. <100 kg

Material: High density PolyEthylene (HDPE)   

Manufactured to: ISO 9001

Available pipe diameters (pipe diameter shown 150mm):

The HW450C comes with collars to suit 150mm, 225mm, 300mm, 375mm or 450mm diameter pipes.
Collars are designed for Polypipe Ridgidrain pipes.

Available accessories -

Handrail: Fabricated galvanised steel to BS729

Trashscreen: Inclined ITS450C                
                       Cranked CTS450C                     
                       Vertical VTS450C

Flapvalves: Flapvalves are available in ductile iron, HDPE or Coplastic to suit pipes from 150mm to 450mm diameter

Anti Vermin Grill: Galvanised steel grill with either BZP or SS fixings

For a high resolution version of this information including detailed headwall drawings please download the datasheet PDF

headwall data sheet

Headwall HW300cTechnical Data

Headwall HW450C Technical Data -

Overall Dimensions: H-1150   W-1147   D-1150

Overall Weight: approx.<40kg unfilled. Approx 1140kg when filled with concrete. Fill: with 0.5m3 of concrete

Material: High density PolyEthylene (HDPE)  Manufactured to: ISO 9001

Available pipe diameters (pipe diameter shown 300mm):

The HW300C comes with collars to suit 150mm, 225mm, 300mm diameter pipes.
Collars are designed for Polypipe Ridgidrain pipes.

Available accessories -

Handrail: Fabricated galvanised steel to BS729

Trashscreen:Inclined ITS300C
                       Cranked CTS300C
                       Vertical VTS300C

Flapvalves: Flapvalves are available in ductile iron, HDPE or Coplastic to suit pipes from 150mm to 300mm diameter

Anti Vermin Grill: Galvanised steel grill with either BZP or SS fixings

Penstock Valves: Penstock valves are available in cast iron or HDPE to suit pipes from 150mm to 300mm diameter

For a high resolution version of this information including detailed headwall drawings please download the datasheet PDF

300C technical

How are the headwalls installed?

The installation of headwall outfalls has been vastly optimised using the patented Permashutter Polymer headwall system.

Overview:

  • The headwall has been manufactured as a tough one peice plastic mould
  • It is lightweight and easy to move
  • It has a toe for ground anchoring
  • It is delivered to site empty, placed on a bed of semi dry blinding concrete and is then filled with concrete
  • Handrails and other headwall attachments are inserted into pre-formed locators in the mould after filling and prior to the concrete setting
  • The durable and graffiti resistant headwall mould remains in position permanently

Actions:

  1. Excavate Bank to accomodate the size of the headwall allowing a minimum of 600mm for working space
  2. Locate Toe Position: Excavate trench to accommodate the toe at the rear of the headwall
  3. Prepare base: Lay a level bed of semi dry concrete and compact. A 150mm thick layer is usually sufficient. In poor ground this can be increased to suit
  4. Position Headwall: Lift the lightweight headwall into position, ensuring that the unit is level
  5. Connect to drainage pipe: Insert the drainage pipe into the collar at the back of the headwall
  6. Fill with concrete: Fill the mould in layers (300mm max). When the concrete reaches the underside of the lower filling holes, clip the covers into place. Continue filling from the upper filling hole until full and then add the cover
  7. Fit Handrail: Lift the handrail into position. Drop onto the fixing studs and tighten.

The Headwall is now complete and requires no further visits

What Ancilliaries are available?

Permashutter provide a full range of headwall ancillaries

headwall ancillaries
 
 
 
Handrails
Trashscreens
Anti-vermin grills
Flapvalves and Penstocks
 

 

 

All ancillaries can be ordered with the headwall and are installed by locating into the pre configured positions prior to filling the headwall mould with concrete.

This enables a high quality installation with only one visit.

Our ancillaries may also be ordered separately for retrospective fitting to precast or cast in situ headwall units.

Please use the order / quote form to obtain prices for you requirements. Get Prices

 

Downloadable brochures, data sheets and installation method statements

All downloadable materials for headwalls , including headwall installation method statements, data sheets, and brochures for the
Permashutter headwall range can be found in our download area.


Go to headwall downloads