hotun SF
Product Overview
The hotun SF range of dry trap tundishes combines a tundish and dry-trap to provide a safe and visible discharge from a relief valve whilst eliminating the risk of foul odours from a waste or soil pipe entering back into the building.
The hotun SF range has been specifically designed to achieve full compliance with water and building regulations, the hotun sf range of dry trap tundishes allows a discharge from a relief valve to connect direct to a foul waste or soil pipe (allowing a flow of water one way, but also providing regulation required, back-flow contamination & back-siphonage protection to prevent cross-contamination of wholesome water & the waste pipe (Category 5 risk water)).
WRAS approved as an air break to drain and suitable for use across domestic and commercial systems,
WRAS approval documents
Specifications - Connections, Flow Rate, Applications
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Inlet pipe size |
15mm |
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Inlet connection |
Inbuilt temperature compliant push-fit connection |
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Outlet pipe size |
22mm Cu or 21.5 plastic |
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Outlet connection |
Compression nut and olive (supplied) |
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Rated flow |
16LPM |
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Max flow rate |
22LPM (with optimised pipework configuration) |
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Usual applications |
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Typical Installation Diagrams
Click on any image to enlarge in new page
Technical Drawings
Specifications - Connections, Flow Rate, Applications
|
Inlet pipe size |
15mm |
|
Inlet connection |
Inbuilt temperature compliant push-fit connection |
|
Outlet pipe size |
32mm |
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Outlet connection |
Suitable for 32mm push fit or universal mechanical fittings – see compatible connection diagrams below – (hotun hiflo SF outlet size is not compatible with solvent weld fittings) |
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Rated flow rate |
25LPM |
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Max flow rate |
45LPM (with optimised pipework configuration – see technical diagrams |
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Usual applications |
|
Typical Installation Diagrams
Click any image to enlarge in new window
Compatible 1 1/4" Outlet Connections
The 1 1/4″ (32mm) outlet on the hiflo version is compatible with either universal compression or push-fit fittings.
Due to the material used in hotun plastic (acetyl) it will not successfully solvent weld, and due to its size, female solvent weld fittings will be too large for the male spigot.
It must also be noted that many solvent weld pipes are not of a sufficient grade (material) and are therefore not suitable to be used in unvented hot water heater D2 discharges when connected to a TEMPERATURE RELIEF VALVE discharge line*.
*NB – this note about the suitability of pipework materials is only relevant to applications that have a TEMPERATURE RELIEF VALVE operating at temperatures above 90°C over several cycles of flow.
For all applications that have a pressure relief valve only (eg boilers and small unvented water heaters) the issue of temperature and volume of water is not an issue and a much wider range of materials will be suitable for use.
If you are unsure of these requirements please feel free to contact our technical team on our contact us page and we will be able to fully discuss these issues with you.
Optimised flow pipework configuration example diagram
Click on image to enlarge in new page
Technical Drawings
Specifications - Connections, Flow Rate, Applications
To Be added
Typical Installation Diagrams
Click on image to enlarge in new page
Compatible 1 1/4" Outlet Connections
The 1 1/4″ (32mm) outlet on the hiflo version is compatible with either universal compression or push-fit fittings.
Due to the material used in hotun plastic (acetyl) it will not successfully solvent weld, and due to its size, female solvent weld fittings will be too large for the male spigot.
It must also be noted that many solvent weld pipes are not of a sufficient grade (material) and are therefore not suitable to be used in unvented hot water heater D2 discharges when connected to a TEMPERATURE RELIEF VALVE discharge line*.
*NB – this note about the suitability of pipework materials is only relevant to applications that have a TEMPERATURE RELIEF VALVE operating at temperatures above 90°C over several cycles of flow.
For all applications that have a pressure relief valve only (eg boilers and small unvented water heaters) the issue of temperature and volume of water is not an issue and a much wider range of materials will be suitable for use.
If you are unsure of these requirements please feel free to contact our technical team on our contact us page and we will be able to fully discuss these issues with you.
Optimised flow pipework configuration example diagram
To Be added – But similar to hotun hiflo SF above
Technical Drawings
Headline Information - Purpose
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Purpose |
To prevent deliberate or accidental contact with potentially scalding water dripping through the open tundish |
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Compatible with |
hotun shield SF (HSSF) is only compatible with the “SF” ange of hotun tundishes, ie speedfit inlet. They are NOT compatible with our 100 range (threaded inlet) tundishes |
Headline Information - When to use shield
hotun shield SF is designed to prevent the user from accidentally touching potentially scalding hot water.
It is therefore used on a risk assessment and job by job basis with the installer determining what the risk is (if any) and if there is a justification for fitting the shield with the additional safety that the shield brings
Compatible hotun SF tundish products
hotun shield SF (HSSF) is compatible with the “SF” range of hotun tundishes, ie push-fit inlet.
They are NOT compatible with our “100” (threaded inlet) range of tundishes
Get In Touch
Registered Address
RA Tech UK Ltd
6 Nottingham Road
Long Eaton, Nottingham, UK
T: 01332 702678
E: info@ratechuk.co.uk
HOTUN – THE SIMPLE SOLUTION