Buffer tanks

PT…, PT…C, PT…CF buffer tank type

HAJDU Hajdúsági Ipari Zrt. buffer tanks serve as storage tanks for closed, hot water central heating systems. Depending on the type of buffer tank, gas- and oil-fired heating appliances, solid fuel, biomass boilers, solar systems, and heat pumps can be connected to them as heat generators. They can be linked to DHW indirect tanks, although some models can directly produce hot water.

They are freestanding, with volumes ranging from 300 litres to 1000 litres, available in “empty”, coil pipe and combi versions.

The internal surface of the buffer tank does not have corrosion protection, therefore it may only be filled with heating water. The tank is insulated with a 100 mm-thick layer of soft polyurethane foam; the casing is leatherette. Both the casing and the insulation can be removed to allow easy installation of the tank. With the insulation removed even the largest capacity buffer tank will fit through a door of width 800 mm. 

HAJDU buffer tank for the storage of heating hot water

The use of PT…, PT…C, PT…CF type buffer tanks, developed for the storage of heating hot water, is essential in systems that produce heating energy in varying quantities, such as solar collectors, solid fuel boilers or heat pumps.
One of the primary design purposes of heating buffer tanks is to balance out variable heating demands, thereby significantly increasing energy production efficiency.

Due to their structural formation and removable jacket, buffer tanks are easy to transport and build into heating systems. They make possible the long-term, economic operation of the system.

HAJDU Hajdúsági Ipari Zrt. built-in tanks have high quality insulation, meaning that the heat energy generated in the form of hot water can be stored for up to several days with the help of the buffer tank. As a consequence, the supply of domestic hot water and the heat boost will be even and uninterrupted.

 

Buffer tank types:

PT type   PT...C type    PT...CF type

Puffertartály

 

 

 

 

 

 

 

 

 

 

 

 

         (cross-section)

 

  • high pressure tank (6 bar)
  • excellent insulation
  • ideal dimensions and joint positioning
  • removable casing and insulation
  • drain valve (500 l, 750 l, 850 l)
  • deflector plates
  • optional electric heating element
  • painted exterior of tank

 

HAJDU Hajdúsági Ipari Zrt. gives a 3-year guarantee on all types of buffer tank.

 

Parameters of buffer tank type

PT buffer tank type

Puffertartály PT típuscsalád

puffertartály pt típus

  • volume: 300 l, 500 l, 750 l, 850 l
  • 9 x 6/4" connecting joints
  • 4 x 1/2" sensor joint

Technical specifications of PT type

Type:PT300PT500PT750PT1000
Nominal volume [litres]:3005007501000
Diameter (without insulation) [mm]:-650790790
Diameter (with insulation)  [mm]:660850990990
Height [mm]:1535187019102310
Weight [kg]:87107130139
Weight (without insulation)(kg)-96116125
Max. operating pressure of tank:0,5 MPa
Connection to water supply:6/4"
Electric heating element connection:6/4"
Sensor connections:1/2"
DHW connections:-
Heat loss (W)86134
Energy efficiency classCD

PT...C buffer tank type 

Puffertartály PT...C típuscsalád

puffertartály belsőnézet

  • volume: 300 l, 500 l, 750 l, 850 l
  • 9 x 6/4" connecting joints
  • 4 x 1/2" sensor joints
  • 1 x steel coil pipe

Technical specifications of PT...C type

Type:PT300CPT500CPT750CPT1000C
Nominal volume [liter]:3005007501000
Diameter (without insulation) [mm]:-650790790
Diameter (with insulation)  [mm]:660850990990
Height [mm]:1535187019102310
Weight [kg]:91140171177
Weight (without insulation) [kg]-129157163
Max. operating pressure of tank:0,5 MPa
Max. operating pressure of solar coil pipe:0,6 MPa
Connection to water supply:6/4"
Electric heating element connection:6/4"
Sensor connections:1/2"
DHW connections:-
Solar coil pipe surface area [m²]:1.52.22.82.8
Heat loss (W)86134
Energy efficiency classCD

PT...CF buffer tank type

Puffertartály PT...CF típuscsalád

PT..CF puffertartály

  • volume: 500 l, 750 l, 850 l
  • 9 x 6/4" connecting joints
  • 4 x 1/2" sensor joints
  • 1 x steel coil pipe
  • 1 x stainless flexible coil pipe (DHW)

 

Technical specifications of PT...CF type

Type:PT500CFPT750CFPT1000CF
Nominal volume [liter]:5007501000
Diameter (without insulation) [mm]:650790790
Diameter (with insulation)  [mm]:850990990
Height [mm]:187019102310
Weight [kg]:160192197
Weight (without insulation) [kg]149178183
Max. operating pressure of tank:0,5 MPa
Max. operating pressure of solar coil pipe:0,6 MPa
Max. operating pressure of DHW pipe:1 MPa
Connection to water supply:G 6/4"
Electric heating element connection:G 6/4"
Sensor connections:G 1/2"
DHW connections:G1"
Solar coil pipe surface area [m²]:2.22.82.8
DHW coil pipe surface area [m²]:6.8
Heat loss (W)134
Energy efficiency classD

 


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