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Flexistor cylinders are perfect for installations where an independent hot water system is required. The flow and return connections facilitate various heat sources and immersion heaters are available as auxiliary power source backup.

Constructed from the same duplex stainless steel as used in the RC Cylinders, Flexistor offers outstanding strength and corrosion resistance and therefore provides a high quality, low maintanance Domestic Hot Water storage cylinder.

Available in capacities from 400 litres to 2500 litres with a choice with all models of either 6 bar or 10 bar operating pressure. Flexistor is supplied with an unvented system kit.

  • Manufactured from Duplex 2205 stainless steel - High-performance, twice the proof strength of 304 and 316 stainless steel
  • Excellent corrosion resistance, stress corrosion cracking resistance and pitting resistance - Durable and long, trouble-free service life
  • Unvented system kit supplied as standard - Easy installation
  • Fully insulated with 100mm of polyurethane foam - Reduced heat loss and pollution, lower fuel bills

LITERATURE 

TECHNICAL INFORMATION

Click to download the technical specification for the Flexistor Direct Cylinders in PDF format.

MODEL

Unit

400

500

800

1000

1250

1450

2000

2500

Storage Volume

LITRES

400

500

800

1000

1250

1450

2000

2500

Maximum Working Pressure

BAR

6

6

6

6

6

6

6

6

ErP DATA

                 

Standing Loss

kW/24h

1.72

2.14

2.74

3.33

3.6

3.9

4.3

4.5

Standing Loss

W

71.7

89.2

114.2

138.8

150.0

162.5

179.2

187.5

ErP Energy Class

 

B

C

N/A

N/A

N/A

N/A

N/A

N/A

MODEL

Unit

400

500

800

1000

1250

1450

2000

2500

Storage Volume

LITRES

400

500

800

1000

1250

1450

2000

2500

Maximum Working Pressure

BAR

6

6

6

6

6

6

6

6

ErP DATA

                 

Standing Loss

kW/24h

1.72

2.14

2.74

3.33

3.6

3.9

4.3

4.5

Standing Loss

W

71.7

89.2

114.2

138.8

150.0

162.5

179.2

187.5

ErP Energy Class

 

B

C

N/A

N/A

N/A

N/A

N/A

N/A

CONNECTIONS

                 

Primary Flow Connection

Inch/BSP

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Primary Return Connection

Inch/BSP

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Secondary Return (BSP)

Inch/BSP

2"

2"

2"

2"

2"

2"

2"

2"

Inlet Connection

Inch/BSP

2"

2"

2"

2"

2"

2"

2"

2"

Outlet Connection

Inch/BSP

2"

2"

2"

2"

2"

2"

2"

2"

Drain Connection

Inch/BSP

2"

2"

2"

2"

2"

2"

2"

2"

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ENGINEERING EFFICIENCY SINCE 1935