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- Cat 5 Booster Sets
Lowara cat-5 packaged break tank booster sets designed to be both compact and cost effective.
Applications
- Domestic
- Commercial
- Industrial
- Building services
Varitank and fix tank booster sets have been designed to comply with the Water Supply (Water Fittings) Regulation 1999 and come as a complete package either mounted on a base plate or frame suitable for providing potable water.Each package is completely assembled and wired to minimise the time taken on site for installation, especially important when the set is replacing an existing unit where down time must be kept to an absolute minimum so end users are not overly disrupted.
Each set has a type AB air gap which provides back fl ow protection to fl uid Category 5. All tanks are WRAS approved.
All sets come complete with ball valve and fl oat, ball valve housing (Except 250lt sets) weir slot overfl ow, warning pipe (on sets 1000lt and above), drain valve and low level float switch.
Combinations of Base mounted sets available
- Single or twin pump (Single pump only on 55lt and 91lt tank sets)
- Variable or fi xed speed
- e-SV vertical multistage pumps
- e-HM horizontal pumps
- Tank nominal volumes available: 55lt, 91lt, 250lt, 450lt, 680lt and 1000lt
Combinations of Frame mounted sets available
- Single or twin pump with three pumps available on larger break tank sizes
- Variable or fi xed speed
- e-SV vertical multistage pumps
- e-HM horizontal pumps
- Tank nominal volumes available: 250lt,450lt, 680lt, 1000lt,1370lt, 1500lt, 2000lt and 3000lt
All the above sets except the 250lt are fi tted with ball valve housings which provides the best usable volume from each tank.
Materials
- 55lt and 91lt bases manufactured from Galvanised steel
- All bases above 91lt and all framesare manufactured from mild steel andpainted Lowara blue.
- 55lt and 91lt tanks are manufacturedfrom un-insulated Polyethylene
250-3000lt one piece tank materials
- Tanks are manufactured from GRP(Glass reinforced Plastic)Pre-insulated with 25mm PU foam(polyurethane) completely encapsulatedwithin a GRP laminate.The outer surface of the tank iscoated with Polyester gel coat.Tank outlet pipework copper up to 50mm and PVC for all sizes above 50mm
Options available with GRP tanks
- Delayed action ball valves (Aylesbury type K)
- Equilibrium ball valves 28-100mm
- 50mm insulation
- Central division in tank
- High level switch
- Temperature gauge
- Contents gauge
Break tank selector switches are available with booster sets that have the break tanks that are split into 2 sections.
Water storage
Storing water has two main purposes,
- To provide for an interruption in supply.
- To provide suffi cient volume to cover peak demands.
Design codes recommend that storage is provided to cover the interruption of an incoming mains supply, in order to maintain a water supply to the building.
Water supply companies are empowered to insist on specifi c terms including the volume or period of storage, within the terms of their supply agreement with a consumer, however many water supply companies only recommend that storage be provided in accordance with BS6700, placing the responsibility and decision fi rmly on the consumer.
The table below provides guidance on typical usage within a building over a 24 hour period.
The table also provides storage volume based on the % of daily demand when the water supply company or client has not dictated the period of cover.
Consideration should also be given to ensure that the break tank has suffi cient volume to cover 50% of the design duty for a minimum duration of 10 minutes.
