Shell & Tube condensers

Bitzer shell-and-tube condenser K073H-2/4 pass connection for city water

Order No.: 151.7202
Manufacturer number: K073H-2/4
Manufacturer: Bitzer

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Description

Design safety
Certified according to the European Pressure Equipment Directive 2014/68/EU

Design features

  • Heat exchanger pipes: made from Cu or Cu-Ni (saltwater resistant version) with newly developed pipe geometry and a “low fouling” profile on the cooling medium side
  • Heat exchanger pipes ...

Design safety
Certified according to the European Pressure Equipment Directive 2014/68/EU

Design features

  • Heat exchanger pipes: made from Cu or Cu-Ni (saltwater resistant version) with newly developed pipe geometry and a “low fouling” profile on the cooling medium side
  • Heat exchanger pipes are soldered into breaker plates to ensure a secure seal
  • mantle pipes and breaker plates made from pressure vessel steel P 265 GH
  • Recirculating cap:
    - removable, allows pipes to be mechanically cleaned
    - connection and deflecting side interchangeable
    - cooling medium outlet from K573H(B)
    - additional bleeding plugs from K38 03T(B)
  • Breaker plates with plastic coating
  • Cooling medium connections: Threaded pipe or flange
  • inspection glass as standard
  • Mounting brackets
    - bottom: vessel labelled as “N”
    - top and bottom: vessel labelled as “H” (for installing single compressors) and “T” (for single and tandem compressors)
  • Refrigerant connections
    - pressurised gas: Rotalock adapter/solder connector with flange K1053H(B) and above
    - refrigerant outlet: shut-off valve
    - alternative refrigerant outlet from model K123HB
  • Rotalock connections for pressure relief valve
    - inner thread 3/a'' -18 NPTF
    - outer thread 1 ¼” - 12 UNF
  • suitable for (H)CFC / HFC refrigerants (refrigerants with a temperature glide > 2 K on request)
  • Maximum permitted pressure/temperature
    - refrigerant side: 28 bar / -10 °C to 120 °C
    - cooling medium side: 10 bar / -10 °C (with antifreeze agent) to 95 °C
  • inert gas filling

bundled pipe condensers with refrigerant outlet at the bottom can also be used as pressurised gas desuperheaters.

Special versions:

  • Salt water resistant version:
    - Cu-Ni pipe, recirculating cap with plastic coating
  • recirculating cap with plastic coating for standard version with Cu pipes
  • mounting rails or plates (e.g. for installing compressor)
  • adapter for connecting the pressure relief valve on all models
  • threaded or welding neck flange
  • refrigerant inlet and outlet with various adapter and valve combinations
  • conforms to foreign regulations and various certification societies (e.g. Bureau Veritas, Germanischer Lloyd, Lloyd's Register of Shipping)

Scope of delivery / accessories
4-pass design corresponds to standard version

Performance data
The specified compressor performance is based on valves measured at a pressurised gas temperature of 90 °C and a cooling medium cleanliness factor r= 0.4 x 1 o-4 m2 K/W.


Condenser design
Calculating of condenser capacity Q

When selecting a condenser it is first necessary to determine the condenser capacity Q. Condensing capacity can be calculated in two different ways:

Condensing capacity as the sum of the refrigeration capacity and power consumption
This method adds together the refrigeration capacity and power consumption of the compressor (or compressors in a power rack). Performance data can be found in the compressor information leaflets or in the software.

Estimation using factors
A simplified method can also be employed for typical designs. To determine condensing capacity, the refrigeration capacity of the compressor is multiplied by the factor in the following diagram.
 


 

Important note
For low temperature applications in particularly, the condenser must be sufficiently powerful such that there is a sufficient reserve of power for cooling off processes or de-icing periods (control calculation at highest evaporating temperature necessary).

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Accessories / Replacement parts

  • Adapter
    Bitzer adapter for pressure relief valve 1-1/4''x1/2'-14NPTF IG
    Order No.: 101.5523
  • Bitzer adapter for pressure relief valve 1-1/4''x1/2'-14NPTF AG
    Order No.: 101.5522
  • Bitzer adapter for pressure relief valve 1-1/4''xG1/2'' AG
    Order No.: 151.7873
  • Bitzer adapter for pressure relief valve 1-1/4''xG1/2'' IG
    Order No.: 151.7872
  • Rail set bottom
    Bitzer mounting rail kit below for K033N-K073H and F062H
    Order No.: 151.7805
  • Rail set top
    Bitzer mounting rail kit above for K073H
    Order No.: 151.7811
  • Upper mounting plate
    Bitzer mounting plate K073H+K123H f.2KC-05.2 to 2CC-4.2
    Order No.: 151.9842

Technical data

Dimensions
Diameter
108 mm
General information
Type
Bündelrohrverflüssiger
Refrigerant charge
3.4kg = R448A/R449A
 
3.3kg = R404A
 
1.5kg = R290
 
 
(see explanation 3)
Type
K073H
Condensation type
wassergekühlt
für Verdichter
2KES-05Y .. 2FES-3Y
Connections
Water outlet
2 pass
G 3/4 Inch
4 pass
G 1/2 Inch
Water inlet
2 pass
2 x G 1/2 Inch
4 pass
G 1/2 Inch
Weight
Weight net
11,0 kg
Performance data
2 pass
Dte 10K
10200 W
Dte 15K
15300 W
4 pass
Dte 10K
8800 W
Dte 15K
13200 W
Pressure drop
2 pass
2 kPa
Flow
1.08 m³/h
nom.
 
2.75 m³/h
max. (see explanation 2)
 
0.85. m³/h
min.
Condenser capacity
7,3 kW
(see explanation 1)
max. throughput
2 pass
0.76
l/s
 
2.74
m³/h
4 pass
0.38
l/s
 
1.37
m³/h
Pipe connections
Outlet
Diameter
10 mm
3/8 inch
(see explanation 4)
Inlet
Diameter
12 mm
1/2 inch
Rotalock connection
Rotalock thread
Outlet
3/4-16 UNF Inch
Inlet
1-14 UNS Inch
Volume
Content
Refrigerant side
3,4 dm³
Cooling medium side
0,7 dm³

Notes

  1. Performance data based on:
    Refrigerant: R134a
    2-pass cooling
    Refrigerant inlet temperature: 90°C
    Cleanliness factor on cooling medium side: 0,00004 m²K/W
    Standard design
    Condensation temperature: 40°C
    Cooling medium inlet temperature: 29°C
    Sea water resistant version
    Condensation temperature: 35°C
    Cooling medium inlet temperature: 25°C
    The condenser performance is very strongly influenced by the system operating conditions. For performance data for other refrigerants and cooling media, see BITZER SOFTWARE.
  2. This information takes into account a maximum flow velocity of 2.0 m/s for the seawater-resistant versions.
  3. At 20°C liquid temperature and 90% tank content
  4. Additional refrigerant
    TypeK033NB
    K073HB
    K123HB
    K203HB

    K173HB
    K573HB
    K813HB
    K1053H*
    K1053HB
    K1353T*
    K1353TB

    K1973T*
    K1973TB
    K2923T*
    K2923TB

    K3803T*
    K3803TB
    K4803T*
    K4803TB

    K6703TB
    K8503TB
    Additional
    Refrigerant outlet
    -11/4-12UNF13/4-12UNF21/4-12UNFDN50DN80

    DN80

    *Special version

  5. For welding neck DIN2633, ND 10/16 or threaded flange DIN2566, ND 10/16

 

For individual performance data, see BITZER SOFTWARE

Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.

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