Installation Guide
2
JG Speedfit
Plumbing and Heating
Contents
JG Speedfit
plumbing and
heating systems
Special applications 3
Working temperatures
and pressures 3
Handling fittings and pipe 3
Product selection and installation 3
Plumbing and
heating
- making a good connection
Prepare pipe 4
Twist & Lock fittings 4
Standard Speedfit fittings 5
To disconnect 6
What not to do 7
Pipe stop distances 8
Collet cover and collet clips 8
Release aid 9
Stop end 9
Stem elbow 9
Service valves 9
Flexi hoses 10
Tap connectors 10
Speedfit manifold 10
Application taps 11
Superseal pipe insert 11
Fittings for cold water services 12
Cold water
services
- making a good connection 13
System
connections
Connections to
compression fittings 14
Connections to
imperial pipe and fittings 14
Connections to
chrome-plated copper pipe 14
Connections to mains supply 14
Connections to boilers 15
Continously operated
re-circulating systems 15
Unvented pressurised cylinders 15
Connections to
cylinders and water heaters 15
Drop-pipe systems 16
Connections to pumps
and valves 16
Connection to copper pipe 16
Connections to
cold water storage tank 16
Preventing back flow 16
Radiator connections 16
Electrical continuity 17
Supplementary bonding
to bathrooms 17
Connecting to other
plumbing fixtures 17
Discharge pipes 17
Water heaters 17
Installing
pipework
Speedfit Barrier Pipe 18
Pipework sizing 18
Pipe bending 18
Pipe support and clipping 19
Recommended clip spacing 19
Pipe sizing 19
Pipework insulation 19
Concealed pipework 19
Traditional joists 20
Timber 'I Beam' joists 20
Cross web joists 20
Timber framed construction 20
Steel framed construction 20
Dry lined walls 20
Wet plaster 20
Laying of pipe in concrete
and masonry 21
Exposed pipework 21
Chemical eects 21
Fluxes and Speedfit 21
Acoustic 21
Protection against rodents 21
Biological 21
System testing 21
System commissioning
and flushing 21
Disinfection of hot and cold
water systems 22
Technical advisory service 22
Metal foil tape 22
Common problems
and identification 22
Plumbing and heating fittings 23
Technic al
checklists
Fittings for cold water services 24