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Water Chiller

H.S.Code: 8418.619000
Water ChillerWater chillers are used for cooling mould to improve the smooth finish of plastic products and reduce the internal stress. It is easy to demould plastic products and the output has been raised. Water chillers are also used for cooling all kinds of lubricating oil and hydraulic transmission oil to control the oil temperature accurately and improve the processing accuracy.

KC series chillers are developed on the basis of introducing and assimilating the products' merits from the Europe and America. Utilizing imported efficient hermetic compressor, heat exchanger and multifunction controller, KC series chillers are easy to operate and maintenance.
Feature
  • Compact and completely sealed structure, but high efficiency;
  • Easy installation, operation and maintenance;
  • Adopts U.S.A. or Japan compressor and electronic parts to ensure long service life;
  • Adopts pipe type evaporator and condenser to enhance heat exchange efficiency;
  • Equipped with thermostatic expansion valve, motor protection device, high/low pressure switch, high pressure safety valve(or fusable insert) and alarm.
Featured Parts
  • Compressor -- TECUMSEH/France (<=12Hp), Copeland/USA(<=15Hp), Danfoss Performer(<=25Hp);
  • Dryer Filter, Pressure Controller -- Danfoss/Denmark (Mexico);
  • Temperature Controller -- DEI/Taiwan;
  • Electrics -- Schneider/Shanghai;
  • Pressure Gauge -- Coconut Tree/Taiwan;
  • Chilled Water Pump -- DAB/Italy.
Specification

General Specification

Refrigerant: R22.
Controller: PLC with digital LED display.
Temperature of inlet cooling water (for water cooled type only): <=320C.
Temperature of circumstance (for air cooled type only): <=350C.
Temperature of outlet chilled water: 5~200C.
Power Supply: 380V/3p, 50Hz (or OEM).
Compressor: Swirl Rotation Type, Hermetic
Safety Device: High/low Pressure Switch, Freeze Protector, Overload Relay, etc..
Refrigerant Control: Capillary(<=KC05) or Thermostatic Expansion Valve(>KC05).

Water Cooled Type (small)
Model KCW03 KCW05 KCW08 KCW10 KCW15
Compressor Power (KW) 3.05 4.43 6.95 9.79 11.55
Nominal Chilling Capacity (Kcal/h) 10,700 14,600 21,500 28,300 42,000
Chilled Water Pump Power (KW) 0.75 0.75 1.5 2.2 2.2
Flow (T/h) 3 3 6 10 12
Pipe I.Dia. 1" 1" 1-1/2" 1-1/2" 1-1/2"
Cooling Water Cooling Water Flow (T/h) 4 4 8 12 15
Pipe I.Dia. 1" 1-1/2" 1-1/2" 2" 2"
Weight (kgs) 120 150 260 350 400
Dimension (cm) 88x
66x
96
88x
66x
100
120x
85x
120
150x
85x
120
150x
90x
120
Water Cooled Type (big)
Model KCW20 KCW25 KCW30 KCW40 KCW50
Compressor Power (KW) 20.22 25.3 28.5 33.54 50.6
Nominal Chilling Capacity (Kcal/h) 60,000 71,400 83,000 110,000 143,000
Chilled Water Pump Power (KW) 3.0 3.0 3.0 4.0 5.0
Flow (T/h) 20 20 20 24 30
Pipe I.Dia. 2" 2-1/2" 2-1/2" 2-1/2" 3"
Cooling Water Cooling Water Flow (T/h) 20 24 28 30 35
Pipe I.Dia. 2" 2-1/2" 2-1/2" 2-1/2" 3"
Weight (kgs) 550 700 950 1200 1400
Dimension (cm) 180x90x120 200x100x120 220x120x150 240x140x150 250x150x160
Air Cooled Type
Model KCA03 KCA05 KCA08 KCA10 KCA15 KCA20
Compressor Power (KW) 3.05 4.43 6.6 9.79 14.25 19.2
Nominal Chilling Capacity (Kcal/h) 9,080 12,600 19,200 28,300 38,700 53,200
Chilled Water Pump Power (KW) 0.75 0.75 1.5 2.2 2.2 3.0
Flow (T/h) 3 3 6 10 12 16
Pipe I.Dia. 1" 1" 1-1/2" 1-1/2" 2" DN50
Fan Power (Kw) 2x0.18 2x0.25 4x0.18 4x0.25 6x0.25 1.05
Weight (kgs) 140 180 320 400 630 1000
Dimension (cm) 120x70x126 140x78x130 170x85x130 180x100x150 200x110x160 240x110x200
FAQ
  1. Why use water chiller?
    As you know, cooling time plays an important role in cycle time. Practically speaking, to use water chiller instead of (or with) cooling water tower may reduce cooling time obviously, and improve output by 20% or more.
     
  2. Why choose air cooled water chiller?
    Easy startup; No need to work with extra cooling water tower.
     
  3. Why choose water cooled water chiller?
    Lower cost; Better heat transfer efficiency.
     
  4. How to know  real chilling capacity?
    Real chilling capacity = (theoretic chilling capacity) * (heat transfer efficiency);
    For water cooled water chiller, heat transfer efficiency is 75%;
    For air cooled water chiller, heat transfer efficiency is 60%.
    But circumstance temperature, temperature of cooling water (for water cooled water chiller), etc. may influence heat transfer efficiency.
     
  5. Why Kenplas' KC series water chiller is better than others'?
    The difference is heat transfer efficiency;
    For water cooled water chiller, 75% (Kenplas') vs <=65% (others');
    For air cooled water chiller, 60% (Kenplas') vs <=50% (others').
     
  6. How to choose water chiller for my machine?
     
    Material Real chilling capacity (per Refrigerant Ton, i.e. 3000Kcal/h, or 12000BTU/h)
    Injection Molding
    (kg)
    Extrusion Molding
    (kg)
    Blow Molding
    (kg)
    Machine
    Name Power (kw)
    HDPE 13.6 22.7 - Air Compressor (no after cooler) 4.7
    LDPE, PP 15.9 22.7 - Air Compressor (with after cooler) 3.7
    Nylon 18.2 - - Vacuum Pump 7.5
    PS 22.7 34.1 - Hydraulic Cooling 7.5
    ABS 22.7 - - Hot Runner Mold 10.5
    PVC 29.5 36.3 - Water Pump in Circuit 3.7
    PC 29.5 - - Feed Throat - 400 Ton up machine 1 set
    PET 31.8 - - Feed Throat - 400 Ton below machine 2 sets
    Polyolefins - - 15.9 Extrusion -- Gear Box Cooling 74.6
    Extrusion -- Feed Throat (screw<=3") 1 set
    Extrusion -- Feed Throat (screw>3") 0.5 set
    Extrusion -- Barrel or Screw Cooling 1 inch (screw dia)
    Remark: 1 Kw = 860 Kcal/h = 1.34 Hp.

  7. What flow rate of chilled water is the best?
    Generally speaking, the temperature differential between chilled water and back water should be within 3~50C (sometimes 1-20C).
    Please note this equation: (Real chilling capacity in Kcal/h) = (temperature differential in 0C) * (flow rate of chilled water in L/min) * 60min/h.
     
  8. Any requirement to water?
    For sure, the water should be clean. Moreover, be care for PH value of water. It is the best to have PH=7.
    If PH>7, terrible corrosion may happen, which leads to scale (dirt) gathers inside evaporator or mold, thus may reduce heat transfer efficiency by 30%. In such case, an water softening device (or discale additives) is needed in the water circulation to lower the PH of water.
     
  9. What should be the diameter of pipeline?
     
    Dia. 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 3"
    Flow (L/min.) 12 20 35 60 90 130 230 560

     

  10. Cooling for hydraulic oil, inlet of barrel?
    Generally, just normal gap water is OK. Better not use water chiller unless especially low temperature is required.
     
  11. Heat preservation for pipelines of chilled water?
    Action on heat preservation must be taken not only to prevent heat loss, but also to prevent dew on pipelines.
    e.g. using metal pipeline (length 25m, surface area 25m2), chilled water -- 100C,  circumstance temperature 300C, heat loss may goes up to 750Kcal/h, i.e. 10% of nominal chilling capacity of 3Hp water chiller.
    Another solution is to use enhanced rubber tube instead of metal pipelines.
     
  12. Any special requirement on water cooling for PET preform Production?
    Details, go on >>.
     
 
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