Complete Pump Supplies | Supplier Domestic Water Pumps & Booster Pumps

Lowara Resvari Variable Speed Domestic Booster Set

Lowara Resvari Variable Speed Domestic Booster Set

Lowara Resvari Booster Assist Unit

Product code: UKRESVARI10205A
£2757.00
£1792.05
£2150.46 inc. VAT
Save £964.95
Valid until 01/12/2017
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Description

Lowara Resvari Variable Speed Domestic Booster Set

Resvari (Variable Speed) booster sets for domestic dwellings with integral water storage with type AB Air Gap. Single phase 230v. Ideal for increasing water pressure around the home.

Resvari (variable speed)  Booster Sets

  • Integral water storage with Class AB air gap I.E. Category 5.
  • Delivery: up to 1 l/s 
  • Head: up to 4.2 Bar.
  • Actual usable tank capacity 180 litres.
  • Adjustable feet for easy levelling.
  • Internal vessel for smooth pump control and minimising the number of pump starts.
  • Input / output isolation valves for ease of maintenance and commissioning.
  • Low water protection

Maintenance

The Resvari (variable speed) and Resfix (fixed speed) booster sets have been designed to be compact, quiet in operation and to make servicing as simple as possible. Both variable and fix speed booster sets use a common cabinet size which have a removable top section. On routine maintenance checks or the rare occasion when the unit may need attention the top section can be easily removed to expose all the components which will help to make servicing quick, clean and problem free. Assist unit
Where a larger water storage volume is required an assist unit can be added to give an additional 180 litres of water storage

Duty Requirement

The duty required can be found by looking at the two following items:-

  1. Pressure requirement. This has 3 elements to consider:- 
  • a. Static head. This is the height above the break tank water line in the booster set to the highest outlet.
  • b. Friction loss These are the losses through the pipe work including bends.  In the example below, estimating the total length of pipe to be 25 metres and limiting the velocity to 1.5m/s an average pressure loss of 15 metres per 100 metres can be expected.
  • c. Residual pressure, this is the pressure required at the outlet.
  • Example: Static height = 4m, Friction loss = 15/100 x 25m = 3.75m, Residual pressure at highest outlet = 20m, Total pressure requirement = 4 + 3.75 + 20 = 27.75m/10.2 = 2.7bar
  1. 2. Flow requirement. The flow requirement will depend on the number of occupants and the number and type of outlets that will be served. In general the Resvari (variable speed) and Resfix (fixed speed) booster sets are suitable for dwellings with up to 4 occupants or 6 occupants with the addition of the assist unit.

Services Guide

  • 1 bedroom 210 litres
  • 2 bedroom 130 litres each
  • 3 bedroom + 100 litres each

Daily water demand as recommended by the Plumbing Engineering

  • Power Supply : 230-1-50
  • Protection : IP65
  • Pump Type : Scuba SC205C 230-1-50
  • Input current :  4.37A

System connections

  • Mains incoming water supply: 15mm
  • Overflow: 22mm
  • System connection: 22mm

Materials

  • Cabinet: Powder coated steel
  • Water tank: Polyethylene
  • Ball valve 1/2”: Brass to BS1212 part 2
  • Pump: AISI 304 Stainless steel
  • Pipework: Copper
  • Compression fittings: Brass
  • Isolation valves: Brass
  • Plastic fittings: Polypropylene
  • Tank insulation: Po­ly­iso­cy­anu­rate (PIR)
  • Anti-spin bracket: AISI 304 Stainless steel
  • 8 litre vessel: Powder coated steel with Butyl membra 

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Delivery

UK Shipping Charges

Standard Delivery (3-5 working days)* - Free

Next Working Day Delivery (on orders placed before 2pm)* - £12.50

Next Day Working Delivery before 10.30 am (on orders placed before 2pm)* -  £30.00

Saturday AM Delivery before 12.00pm**- £35.00 

*Excludes UK Islands, Republic of Ireland and Scottish Highlands.

* Next Day Delivery for orders placed before 2pm on the previous working day, i.e. Thursday order before 2pm for Friday delivery.  For orders placed after 2pm, despatch will be on the following day for delivery on the next available working day, i.e. Thursday order after 2pm, despatch Friday for Monday delivery (Next Day Delivery excludes Weekends and Bank Holidays).

*Working Days are classed as Monday-Friday

**Saturday AM delivery and Sunday delivery required orders to be placed before the previous Friday by 2.00pm (excluding Bank Holidays). Order placed after this time, will be delivered the following week.

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