Precision Temperature Control


SELF-CONTAINED RECIRCULATING CHILLERS

Recirculate Fluid from an Internal Tank

Closed-Loop coolers recirculate coolant from a tank mounted in the cooler, through a sealed coolant loop and heat load (spindle) and back to the tank. The tank, pump, and evaporator are all in the cooler.

Coolant is added to the tank through a filler/breather port. The coolant level is always visible in the tank level gauge. When the pump is energized, it draws coolant from the tank and pumps it through the coolant loop. The coolant absorbs heat from the heat load and then dissipates it in the evaporator before returning to the tank. The temperature controller senses the temperature of the coolant leaving the tank and controls the refrigeration effect in the evaporator to provide coolant at the desired discharge temperature.

This model is also available in a Non-Refrigerated air or water cooled fluid cooler. Please see "NRCA" and "NRCW" coolers.

Applications:
  • High-Speed Spindles
  • Lasers
  • Power Supplies
  • Diffusion Pumps
  • Jacketed Vessels
  • Chill Rolls
  • Injection Molding
  • Linear Motors
  • Medical Equipment
  • Welding
  • Vacuum Systems
  • Heat Exchangers

OC Models for Water or Water-Based Coolants including de-ionized water (specific options required), water/glycol mixtures, and water-based synthetic coolants. OC models are supplied with a durable stainless steel coolant tank with filler/breather port and coolant level gauge. Evaporators are stainless steel immersion coils (up to 3 HP) or stainless steel brazed plates. Piping and fittings are non-ferrous. Standard pumps are bronze, brass, or stainless steel.

Model Selection Chart

NOTE: This information is being presented as a guideline only. Your specific application, options and requested features may alter the specifications. Please confirm all specifications with Turmoil.

MODEL RATED COOLING CAPACITY* COMP. STANDARD PUMP CAPACITY TANK CAPACITY STANDARD VOLTAGE**
WATER BTU/hr Kcal/hr hp gpm lpm gal. ltr.  
OC-25R 2500 625 1/4 1.6 6 2 7.5 V1, V3
OC-33R 3300 825 1/3 1.6 6 2 7.5 V1, V3
OC-50R 5000 1500 1/2 2.5 9 4 15 V1, V3
OC-75R 8000 2000 3/4 4 15 4 15 V1, V3
OC-100R 12000 3000 1 6 23 10 38 V1, V3
OC-150R 18000 4500 1 1/2 8 30 10 38 V6, V8
OC-200R 24000 6000 2 8 30 14 54 V6, V8
OC-300R 36000 9000 3 12 45 20 75 V6, V8
OC-400R 48000 12000 4 16 60 32 120 V6, V8
OC-500R 60000 15000 5 20 75 32 120 V6, V8
OC-750R 90000 22500 7 1/2 30 112 48 180 V6, V8
OC-1000R 120000 30000 10 40 150 60 225 V6, V8
OC-1500R 180000 45000 15 60 225 100 375 V6, V8
OC-2000R 24000 60000 20 80 300 150 560 V6, V8
OC-2500R 300000 75000 25 100 375 150 560 V6, V8
OC-3000R 360000 90000 30 120 450 200 750 V6, V8

*Capacities based on coolng water to 60°F (16°C) in a 90°F (32°C) ambient.

**Refer to chart below.

Please download our catalog or contact us for dimensions and shipping weight.

STANDARD VOLTAGE
V0 100/50/1
V1 115/60/1
V2 200/50/1
V3 230/60/1
V4 208-230/60/1, 200/50/1
V5 200-240/50/3
V6 208-230/60/3
V7 400/50/3, 460/60/3
V8 460/60/3
V9 575/60/3
VC Custom Voltage
Contact our engineers for more information.

OCO Models for Oil or Oil-Based Coolants. All OCO models are supplied with stainless steel immersion or brazed plate evaporators selected specifically for oil based coolants and Rotary vane gear pumps all designed for years of reliability and dependabilty.

Model Selection Chart

NOTE: This information is being presented as a guideline only. Your specific application, options and requested features may alter the specifications. Please confirm all specifications with Turmoil.

MODEL RATED COOLING CAPACITY* COMP. STANDARD PUMP CAPACITY TANK CAPACITY STANDARD VOLTAGE**
OIL BTU/hr Kcal/hr hp gpm lpm gal. ltr.  
OCO-25R 2500 625 1/4 1.5 5.6 4.5 17 V1, V3
OCO-33R 3300 825 1/3 1.5 5.6 4.5 17 V1, V3
OCO-50R 5000 1500 1/2 2.5 9.5 4.5 17 V1, V3
OCO-75R 8000 2000 3/4 5 19 4.5 17 V1, V3
OCO-100R 12000 3000 1 8 30 12 45 V1, V3
OCO-150R 18000 4500 1 1/2 8 30 12 45 V6, V8
OCO-200R 24000 6000 2 12 45 16 60 V6, V8
OCO-300R 36000 9000 3 18 68 20 75 V6, V8
OCO-400R 48000 12000 4 24 90 32 120 V6, V8
OCO-500R 60000 15000 5 30 112 32 120 V6, V8
OCO-750R 90000 22500 7 1/2 40 150 48 180 V6, V8
OCO-1000R 120000 30000 10 50 190 60 225 V6, V8
OCO-1500R 180000 45000 15 75 280 100 375 V6, V8
OCO-2000R 24000 60000 20 100 375 150 560 V6, V8
OCO-2500R 300000 75000 25 125 470 150 560 V6, V8
OCO-3000R 360000 90000 30 150 560 200 750 V6, V8

*Capacities based on coolng oil to 80°F (28°C) in a 90°F (32°C) ambient.

**Refer to chart below.

Please download our catalog or contact us for dimensions and shipping weight.

STANDARD VOLTAGE
V0 100/50/1
V1 115/60/1
V2 200/50/1
V3 230/60/1
V4 208-230/60/1, 200/50/1
V5 200-240/50/3
V6 208-230/60/3
V7 400/50/3, 460/60/3
V8 460/60/3
V9 575/60/3
VC Custom Voltage
Contact our engineers for more information.
Closed Loop Chiller Flow Schematic
Click image for larger view.

Closed-Loop coolers recirculate coolant from a tank mounted in the cooler, through a sealed coolant loop and heat load (spindle) and back to the tank. The tank, pump, and evaporator are all in the cooler.

Coolant is added to the tank through a filler/breather port. The coolant level is always visible in the tank level gauge. When the pump is energized, it draws coolant from the tank and pumps it through the coolant loop. The coolant absorbs heat from the heat load and then dissipates it in the evaporator before returning to the tank. The temperature controller senses the temperature of the coolant leaving the tank and controls the refrigeration effect in the evaporator to provide coolant at the desired discharge temperature.

These are a few of our basic options. Click the button below to see all chiller options.

CTC: Digital Temperature Controller. Provides close temperature control (±0.5°F). Displays bot set-point and coolant temperature.

ATC: Ambient tracking Controller. A dual input digital tempertue controller allows the coolant temperature to track ambient temperature at a constant, adjustable differential. Displays both ambient and coolant temperature.

OP: Optional Pumps. A variety of pumps are available to meet almost any flow and pressure requirement for both water and oil-based coolants.

LF: Low Flow Interlock. Prevents damage to machine on loss of flow.

HT: Temperature Fault Interlock. Indicates coolant temperature is out of range.

LL: Low Level Interlock. Indicates coolant level is low.

FSM: Flow Meter/Switch. Adjusts coolant flow to optimum setting.

ILH: In-Line Heater. Warms up coolant to optimum operating termperature.

ILF: In-Line Filter. Insures clean coolant.

PS: Pure System. Coolant only comes in contact with stainless steel or plastic.

NRCW and NRCA: Non-Refrigerated Cooler. Uses central chilled water or ambient air instead of refrigeration. Energy efficient and space saving.

W: Water-Cooled Condenser. For use with city, tower or other water sources. Energy efficient and space saving.

Request a Quote

FOR FASTEST SERVICE: fill out this form.

Download Catalog

Download Catalog

TURMOIL COOLER FEATURES

Heavy-Duty Construction. Coolers are designed for continuous industrial duty and dependable long life. Welded steel cabinet features lifting eyebolts and mounting skid. Panels are easily removable for complete access.

High Ambient Condensers. Oversized to run cool in hot, dirty environments. All condensers are protected with a cleanable aluminum air intake filter.

Ozone-Friendly Refrigerants. Turmoil coolers use only approved, non-ozone-depleting refrigerants. HFC-134a refrigerant is standard on all models with up to 3 HP compressors and optional on all larger models. HCFC-22 refrigerant is standard on all models with 4 HP compressors or larger.

Complete Temperature Control. Choice of analog or digital controllers available with options to hold coolant within ±0.5ºF (±0.25ºC) of set-point. Hot gas bypass unloading eliminates compressor short cycling.

Super-Efficient Evaporators. For both oil- or water-based fluids. Brazed plate, immersion coil, or shell-and-tube design of stainless steel, copper, or steel construction depending on application. Tested for 350 PSI working pressure.

Click here for complete features & warranty Information