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VKG-HC • Hot and cold water buffer tanks

  • R-AQUA
  • Buffer tank
  • 200 - 5000 L

The VKG-HC is an vapour-tight insulated buffer tank for applications with hot or cold water. These buffer tanks are used to increase the thermal inertia of chilled water or heat pump systems. They are necessary to limit the frequent restarting of compressors and they provide a sufficiently large thermal buffer during the defrost cycle of air/water heat pumps. The VKG-HC units have two additional connections for an additional source or for setting up this buffer tank as a hydraulic separator. The exterior coating can be made of PVC for indoor installation (VKG-HC) or embossed aluminum for outdoor installation (VKGE-HC). These buffer tanks are selected by CAIROX on a project basis and offered with a heat pump or ice water machine proposed by us.

Brand

  • R-AQUA

Composition

  • Insulation outer jacket from 200 to 1000 L: High density rigid polyurethane foam
  • Insulation outer jacket from 1500 L: Closed cell polyethylene foam + Polyester Fiber
  • Material tank: Carbon steel

Application

  • Increase thermal inertia of hot or chilled water systems
  • Avoids frequent restarts of compressors
  • Thermal buffer for air/water heat pumps during the defrost cycle

Specifications

  • Minimum temperature -10°C
  • Maximum temperature 90°C
  • Maximum Pressure 6 bar

Models

  • VKG-HC for indoor installation with outer jacket in coloured PVC
  • VKGE-HC (on demand) for outdoor installation with outer jacket in hammered aluminium plate

Technical data

VolumeØeHtRDE1E2E3E4G1G2IK1K2K3K4P1P2
Lmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
20051013351430125520-920-3201120320580850--3201120
3006101680179013055589510551155355140535564512557809803551405
5007601735189514062088511201220380145038069013007859853801450
75091017651990125685885114512453951445395685129582010203951445
10001010207523101257551095140515054151715415955156595511554151715
1500122022452560165840118015101610500180050010401650102012205001800
2000132025652885155885145018151915505210550513451955118013805052105
25001470236027851801015125515151665565186556510051615111513155651865
30001470286032201801315175518151965565236556515052115136515655652365
40001620293033501601340178018401990590239059015302140139015905902390
50001820297034851401350179018402000600240060015402150140016006002400

Notes

R= Maximum height while tilting to standing

Dimensions

VolumeDE1E2E3E4G1G2IK1K2K3K4P1P2T
200 L1"1/41/2"-1/2"-1"1/21"1/22"1"1/21"1/2--1"1/21"1/21"1/4
300 L1"1/41/2"1/2"1/2"1/2"2"2"2"1"1/21"1/21"1/21"1/22"2"1"1/4
500 L1"1/41/2"1/2"1/2"1/2"3"3"2"2"2"2"2"3"3"1"1/4
750 L1"1/21/2"1/2"1/2"1/2"3"3"2"2"2"2"2"3"3"1"1/2
1000 L1"1/21/2"1/2"1/2"1/2"3"3"2"2"2"2"2"3"3"1"1/2
1500 L2"1/2"1/2"1/2"1/2"3"3"2"2"2"2"2"3"3"2"
2000 L2"1/2"1/2"1/2"1/2"3"3"2"2"2"2"2"3"3"2"
2500 L2"1/2"1/2"1/2"1/2"4"4"2"2"2"2"2"4"4"2"
3000 L2"1/2"1/2"1/2"1/2"4"4"2"2"2"2"2"4"4"2"
4000 L2"1/2"1/2"1/2"1/2"4"4"2"2"2"2"2"4"4"2"
5000 L2"1/2"1/2"1/2"1/2"4"4"2"2"2"2"2"4"4"2"

Notes

  • D: Drain
  • E1 Connection to probe / thermometer
  • E2 Connection to probe / thermometer
  • E3 Connection to probe / thermometer
  • E4 Connection to probe / thermometer
  • G1 Connection to users
  • G2 Connection to users
  • I Connection to screw electrical heater
  • K1 Additional connection
  • K2 Additional connection
  • K3 Additional connection
  • K4 Additional connection
  • P1 Connection to energy source
  • P2 Connection to energy source
  • T Connection to bleedvalve
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