Lauda-Brinkmann | Additional Devices

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Immersion coolers

LAUDA through-flow coolers and immersion coolers are used as add-on devices to cool heating thermostats or any type of bath below ambient temperature. The preferred use of through-flow coolers is the use in conjunction with heating thermostats and integration into the cooling circuit.

LAUDA immersion coolers provide a quick way to extend the temperature range downwards when used in conjunction with heating thermostats, water baths and cooling traps. The thermostats work on the classical principle of direct evaporation, and the flexible hose connection means that they can be used without any problems. The ETK 50 even has adjustable temperature control.

Compact space-saving construction
Carrying handles for easy transport
Cooling coil made from high-grade stainless steel
Flexible tube connection with special insulation (length 1.5 m)
Temperature range -50...20 °C

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of our Additional Devices brochure:

LAUDA Additional Devices Brochure (1 MB)

Technical features			ETK 30	ETK 50
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Working temperature range (without external heating)		°C	-40...20	-50...20
Operating temperature range (with external heating)		°C	-40...100	-50...100
Temperature probe			–	Pt 100
Control action			–	2-point action
Temperature stability (at -10 °C)		±K	–	0.5
Cooling output at	20 °C	kW	0.15	0.25
	-10 °C	kW	0.13	0.25
	-30 °C	kW	0.04	0.20
	-40 °C	kW	0.01	0.10
	-50 °C	kW	–	0.04
Cooling unit			air-cooled fully hermetic	air-cooled fully hermetic
Cooling coil (Ø x L)		mm	42x124	52x166
Base area (W x D x H)		mm	250x360x285	460x410x270
Weight		kg	17	33
Power consumption		kW	0.2	0.3
Cat. No. 230 V; 50/60 Hz			LFE 002	on request
			Summary	Summary

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Through-flow coolers

LAUDA through-flow coolers upgrade any type of heating thermostat with pump connections to a high-quality cooling thermostat and thus allow working below ambient temperature. Through-flow coolers replace cooling with tap water that is expensive and ecologically not recommandable. They provide a constant flow and temperature of cooling supply regardless of the variations. Therefore, it is possible to ensure optimum temperature stability over the entire period and allow reproducible temperature conditions at any time.

Air-cooled, fully hermetic and thus absolutely maintenance-free cooling aggregates with heat exchangers in reasonable dimensions.
Heat exchangers are made from stainless steel.
All refrigerated parts inside the through-flow cooler are perfectly insulated. Therefore no condensation of water or risk of corrosion.
Low-noise emissions
Temperature range -40...150 °C

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of our Additional Devices brochure:

LAUDA Additional Devices Brochure (1 MB)

Technical features			DLK 10	DLK 25	DLK 45	DLK 45 LiBus
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Working temperature range		°C	-15...150	-30...150	-40...150	-40…150
Cooling output at	20 °C	kW	0.25	0.33	1.1	1.1
	0 °C	kW	0.20	0.28	0.95	0.95
	-10 °C	kW	0.10	0.25	0.85	0.85
	-20 °C	kW	–	0.22	0.75	0.75
	-30 °C	kW	–	0.20	0.55	0.55
	-40 °C	kW	–	–	0.30	0.30
Heat exchanger connections for heat carrier			M 16x1, nipples Ø 13 mm	M 16x1, nipples Ø 13 mm	M 16x1, nipples Ø 13 mm	M 16x1, nipples Ø 13 mm
Special features			Control connection for mains supply		Proportional cooling: Ultras	Proportional cooling: Proline
Overall dimensions (W x D x H)		mm	200x400x320	290x540x330	470x560x430	470x560x430
Weight		kg	17	33	63	63
Power consumption		kW	0.2	0.5	0.9	0.9
Cat. No. 115 V; 60 Hz			LFD 710	LFD 708	–	–
Cat. No. 208-220 V; 60 Hz			–	–	LFD 809	LFD 811
			Summary	Summary	Summary	Summary

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Circulation heat exchangers

LAUDA UWT circulation heat exchangers are an economical alternative to circulation chillers when central facility cooling circuits can be used. This is economically and ecologically practical if heat removal from processes has to be performed either regularly or at a high power, and the removed heat should not enter the ambient environment. Regulated circulation heat exchangers – also known as system separators – guarantee temperatures, pressures and volume flow rates adapt to the application. The LAUDA UWT take cooling water from an existing primary circulation system and thermostat an internal bath volume in an individually-adjustable manner: this bath volume is then transported to the application via a pump in the laboratory circulation system.

High pump capacity for good heat exchange
High temperature stability even when there are temperature fluctuations in the primary circuit
Compact design for easy installation
High degree of process safety thanks to adapted cooling capacity
Free of refrigerants
Temperature range 8...25 °C

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of our Additional Devices brochure:

LAUDA Additional Devices Brochure (1 MB)

Schematic circuit diagram of LAUDA circulation heat exchangers

A: Application
B: UWT
C: Facility cooling supply
a: Inlet of coolant
b: Return flow of coolant
c: Flow pipe for application
d: Return pipe for application
1: Heat exchanger
2: Bath vessel with heat tranfer liquid
3: Immersion pump for circulation
4: Pressure indication for UWT 6000 and UWT 10000

Technical features		UWT 3000	UWT 6000	UWT 10000
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Working temperature range	°C	8…25	8…25	8…25
Resolution of setting	°C	0.1	0.1	0.1
Resolution of indication	°C	0.1	0.1	0.1
Temperature stability	±K	1	1	1
Cooling capacity	kW	3	6	10
at coolant inlet temperature	°C	9	9	9
at coolant pressure loss	bar	0.12	0.05	0.07
at cooling circuit volume flow	L/min	6	16	20
at laboratory circuit inlet temperature	°C	14	14	14
at output UWT	L/min	6	6	20
Pump pressure max.	bar	1.0	1.0	2.2*
Flow max.	L/min	30	30	33
Cooling and lab circuit connections		G 3/4	G 1 1/4	G 1 1/4
Filling volume	L	7...12	35...45	35...45
Overall dimensions (W x D x H)	mm	350x480x410	550x650x480	550x650x480
Weight	kg	34	68	74
Power consumption	kW	0.2	0.2	0.5
Cat. No		on request	on request	on request
		Summary	Summary	Summary

*Also available with more powerful pump with 5.5 bar (LSW 1202); 40 L/min