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ACO HP Refurbishment outlet
Description

When an existing flat roof is being upgraded, the refurbishment outlet is designed to fit inside the existing outlet and pipework with minimal disruption without the need to remove the original outlet. The aluminium body incorporates a wide fixing flange to enhance the bond with roofing membranes and does not suffer the distortion effects during the application of torched membranes. Outlets are supplied with a flexible finned pipe seal ensuring a watertight connection to existing pipework. The ease of use and minimal disruption to the existing rainwater system makes this an extremely cost effective solution when upgrading flat roofs.

Refurbishment outlets are designed to fit the following range of existing pipework systems:

  • 3HP-RFO: 71.5–78.5 mm internal pipe diameter.
  • 4HP-RFO: 97.0–104.0 mm internal pipe diameter.

General information
Material

LM6 grade aluminium alloy to BS 1490

Uniclass 2015
Pr_65_50_35_37 Gravity rainwater outletsPrimary
CAWS

R10/26 Rainwater outlets

R10/365 Proprietary rainwater outlets

Specification data - Gravity rainwater outlets
Product Reference

HP Refurbishment outlet

Type

3HP-RFO

75 mm nominal bore, dome grating.

4HP-RFO

100 mm nominal bore, dome grating.

Contractor's choice

As drawing ___

Outlet

Type and direction to suit pipework with suitable adaptors and connections

Accessories

2/3DS deck support

Outlet support plate to metal decks for code 3 (75 mm) outlets.

4/6DS deck support

Outlet support plate to metal decks for code 4 (100 mm) outlets.

2/3RR raising ring

128 mm high raising ring for code 3 (75 mm) circular outlets.

4/6RR raising ring

128 mm high raising ring for code 4 (100 mm) circular outlets.

2/3TG terrace grate

Terrace grate for use with raising ring to code 3 (75 mm) circular outlets.

4/6TG terrace grate

Terrace grate for use with raising ring to code 4 (100 mm) circular outlets.

Contractor's choice

As drawing ___

Standard product features

Material:

LM6 grade aluminium alloy to BS 1490.

Secure gratings:

Gratings are secured with stainless steel fixings that require either a socket wrench or spanner for removal and replacement.

Flow rate (35 mm head over outlet body):

  • 3HP-RFO: 5.0 L/s.
  • 4HP-RFO: 5.0 L/s.

Area drained (rainfall intensity 75 mm/hr):

  • 3HP-RFO: 240 m².
  • 4HP-RFO: 240 m².

Weight:

  • 3HP-RFO: 5.00 kg.
  • 4HP-RFO: 5.10 kg.

Product Options

Material:

Gun-metal to BS 1400 available to special order. Gun-metal should be specified for use in conjunction with copper or lead-clad roofs or when connected to copper pipes.

Accessories:

  • Deck supports are used where ACO Building Drainage HP rainwater outlets are installed in metal deck roof constructions, providing a stable and secure interface between the outlet and roof. Deck supports are manufactured from 1.5 mm steel sheet and finished primed in a red oxide paint finish. Suitable for all types of metal deck roofing.
  • Raising rings are used where it is necessary to raise the level of the dome grating above the outlet body, for example an inverted roof construction. With the exception of the balcony outlets (HP-BO) and gully outlets (HP-GO), raising rings will only accept dome gratings or terrace grates as the raising rings will not accept the standard flat grates.
  • Terrace grates are designed for installations with terraced paving slabs or block paviors. Terrace grates can only be used with circular raising rings. A slotted fixing detail allows 90° rotational movement to accommodate slab/ pavior patterns.

Literature
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