Low temperature coolant circulation pump also know as Low temperature cooling liquid circulating pump. This device adopt mechanical refrigeration, the main function is provide low temperature liquid, low temperature water bath . It can also connect with rotary evaporator, vacuum freeze drying oven , cycle water vacuum pump , magnetic stirrer and so on , to achieve the chemical reaction or drug store under low temperature condition.
Large cryogenic cooling liquid circulating pump is constant flow, constant voltage. Used for purification of high purity metals, rare element, environment experiment and magnetron sputtering, vacuum coating and other large equipment, and also can meet the cooling demand of electron microscopy, electron probe, ultra high vacuum sputtering apparatus, X-ray machine, laser and accelerate the electric light those high value equipment. Cryogenic cooling liquid circulating pump is particularly suitable for the chemistry, biology, physics laboratory work under normal conditions or need to maintain a low temperature. It is a necessary lab equipment for medicine, chemical industry, food industry, metallurgical industry, universities, scientific research, genetic engineering, polymer engineering and so on . (Can be customized large capacity according to user needs ).

Refrigerated circulators:

--adopt mechanical refrigeration, the main function is to provide low temperature liquid for rotary evaporator,glass reactor and so on to achieve the chemical reaction under low temperature condition.It is particularly suitable for the chemistry, biology, food industry, metallurgical industry, scientific research, genetic engineering, polymer engineering when need to maintain low temperature.

Features:

1. High Quality Air-cooled hermetic imported compressor group.

2.Exclusive and high quality relay, protector, and capacitor.

3. Microprocessor controller, displays display, simple operation.

4. Large cooling capacity and high cooling speed.

5. Circulation pump flow can be customized to meet the practical needs of different customers.

6. All models of the machine temperature and cooling capacity can be customized  to meet the customer's actual needs.

7. The evaporation rate of plate type refrigerate circulators can rise up 50% than normal refrigerate circulators.
Product features:

(1)Air-cooled and hermetically sealed compressor units (import) with dependable quality;

(2)The dedicated and high-quality relays, protective devices and capacitors of the refrigerating units;

(3)Digital Read Out of temperature and microprocessor controller for temperature, simple and easier to see;

(4)It can be matched with a variety of instruments (rotary evaporators, fermentation tanks, chemical reactors, freeze-drying equipments, pharmaceutical reactors, etc.);

(5)Bigger cooling capacity and faster cooling speed, which have greatly improved the working efficiency;

(6)It can effectively ensure the normal use of all kinds of precision instruments under the working conditions such as lacking water, the poor quality、pressure and temperature of water, and high temperature;

(7)The flow of circulating pump can be either adjusted or customized, which has greatly met the actual needs of different customers;

(8) All models of this machine can be matched reasonably between the low temperature and the cooling capacity or capacity basing on the requirements of customers.
Technical Parameters.

Keda low-temperature pump types classification.

According to the volume of cryogenic cooling bath circulation pump divided into : 5L、10L、20L、30L、40L、50L、60L、80L、100L.

Each volume according to the lowest temperature can divide into : -10℃、-20℃、-25℃ 、-30℃、-40℃、-60℃、 -80℃、-120℃.
Precautions:

Note:

Please read it carefully before using the instrument.

1, The machine's power standard is 220 v, should be equipped with reasonable grounding system and the safety of the standard three pole socket.

2, Before use, please put into the liquid medium (water, alcohol, antifreeze can also be), medium level should not lower than cold tube and 20 mm below the workbench is advisable. Don't let sand , acid-base class material or debris into the cooling system or the circulation pump, to prevent clogging or corrosion liner and coil.

3, Recurring observe the slot liquid level height, when the liquid level is too low, should be timely to add liquid medium.

4, When pump working temperature is lower, should pay attention not to open the cover. Never put your hand into the groove, to prevent frostbite.

5, The Pump working environment, temperature ≦ 25 ° C , humidity ≦ 60 ℃, no obstacles in the instrument around 300 mm. Indoor open flame is strictly prohibited.

6, When the liquid outer loop, the client shall pay special attention to the robustness of the out pipe joint, fight off, in order to avoid liquid leakage.

7, After use, all switch should be closed and cut off power supply.

8, The instrument should be regular cleaning, if the pump unused for a long time, you should put out the medium, and deep clean, maintain a clean and tidy work in mesa and the operation panel.

9, Don't try to open and repair equipment personal, any question, just make a call

47

Model		DLSB-5/10	DLSB-5/30	DLSB-10/10	DLSB-10/30
Volume(L)		5	7.49	13.82	13.82
No Load Min. Temp. (℃)		-15	-20	-20	-30
Environment Humidity(％)		≤70	≤70	≤70	≤70
Power Supply(Single phase)(V/HZ)		220/50	220/50	220/50	220/50
Temp. Precision（℃）		±2	±2	±2	±2
Cooling Capacity(W)	20℃	-	-	-	-
	10℃	620	1150	1320	1320
	0℃	460	880	1056	1056
	-10℃	280	600	880	880
	-20℃	-	320	520	528
	-30℃	-	-	-	120
	-40℃	-	-	-	-
	-60℃	-	-	-	-
	-80℃	-	-	-	-
	-100℃	-	-	-	-
	-120℃	-	-	-	-
Total Power(W)		420	635	980	980
Total Current(A)		2.1	2.9	4.8	5.2
Refrigerant		134A	R22	R22	R404A
Circulating Pump	Power（W）	100	100	100	100
	Flow(L/min)	20	20	20	20
	Lift(m)	4～6	4～6	4～6	6
Open Size（mm）		160×160	200×200	230×230	220L×220
Liquid tank（mm）		170×170×170	210×210×170	240×240×240	240×240×240
Total Demension（mm）		400×260×530	515×345×688	550×415×780	550×420×780
Weight(Kg)		28	54	54
Fuse		5A	10A	15A	10A

Model		DLSB-20/30	DLSB-20/40	DLSB-30/30
Volume(L)		24.38	24.38	39.3
No Load Min. Temp. (℃)		-30	-40	-30
Environment Humidity(％)		≤70	≤70	≤70
Power Supply(Single phase)(V/HZ)		220/50	380/50	220/50
Temp. Precision（℃）		±2	±2	±2
Cooling Capacity(W)	20℃	-	-	-
	10℃	1845	4780	2722
	0℃	1476	4180	2178
	-10℃	984	3670	1452
	-20℃	615	2310	907
	-30℃	246	1100	363
	-40℃	-	480	-
	-60℃	-	-	-
	-80℃	-	-	-
	-100℃	-	-	-
	-120℃	-	-	-
Total Power(W)		1350	2488	1950
Total Current(A)		7.2	5.4	9.2
Refrigerant		R404A	R404A	R404A
Circulating Pump	Power（W）	100	100	100
	Flow(L/min)	20	20	20
	Lift(m)	6	6	6
Open Size（mm）		260×260	220*220	310×310
Liquid tank（mm）		290×290×290	290*290*290	340×340×340
Total Demension（mm）		565×460×845	660*515*985	660×515×985
Weight(Kg)		60	102	89
Fuse		15A	10A	-

-

Model		DLSB-30/40	DLSB-50/30	DLSB-100/120
Volume(L)		33.46	59.31	103.8
No Load Min. Temp. (℃)		-40	-30	-120
Environment Humidity(％)		≤70	≤70	≤70
Power Supply(Single phase)(V/HZ)		380/50	380/50	380/50
Temp. Precision（℃）		±2	±2	±2
Cooling Capacity(W)	20℃	-	22000
	10℃	4780	5475	-
	0℃	4180	4380	-
	-10℃	3670	3285	-
	-20℃	2310	1190	-
	-30℃	1100	1095	-
	-40℃	480	-	8820
	-60℃	-	-	7350
	-80℃	-	-	5800
	-100℃	-	-	2940
	-120℃	-	-	850
Total Power(W)		2488	3850	24000
Total Current(A)		4.4	5.4	32
Refrigerant		R404A	R404A	R23
Circulating Pump	Power（W）	100	100	280
	Flow(L/min)	20	25	30
	Lift(m)	4～6	7	12
Open Size（mm）		380×380	360×360	460*460
Liquid tank（mm）		390×390×220	390×390×390	470*470*470
Total Demension（mm）		670×580×1005	760×615×1130	1450×950×1400
Weight(Kg)		120	97	485
Fuse		RT28N-32  2A	-	-