Single Head Diaphragm Liquid Pump for Laboratory/Medical/Environmental Instruments/Ivd Application

• Certification: EMC, ISO9001:2000, RoHS, CE
• Rated Current: 1-4A
• Voltage: 3V
• Material: Plastic
• Power: Electric
• Valve Body Type: Diaphragm
• Model NO.: 7121-31-ELA
• Function: Electronic Type
• Diaphragm Material: EPDM/FKM/HNBR
• Performance: Wearable
• Valve Body: Materials Can Be Replaced Based on Medium
• Motor: DC Motor or BLDC Motor, Optional
• Transport Package: Blister+Foam
• Specification: 42.8*34.2*22.5
• Trademark: Keyto
• Origin: China
• HS Code: 84135031
• Production Capacity: 500, 000PCS Per Year

Product Description

Product Description

7121 series diaphragm liquid pump is independently developed by Keyto. The main function is through the motor diaphragm reciprocating movement to achieve gas suction and discharge.
The principal of diaphragm pump is the elastic diaphragm reciprocating by centrifugal wheel rotating, to change the volume of chamber. And we designed single direction poppets at input and output port, to achieve medium aspiration and dispensing.

typical application

This series is widely used in medical equipment, environmental protection equipment, meters, chemical machinery, household appliances, laboratory instruments and other high-end applications.

Detailed Photos

Product Parameters

Non-corrosion resistant diaphragm pump parameters table
1.Brush motor diaphragm pump

Model	7121-31-ELA	7121-32-ELA	7121-61-ELA	7121-62-ELA
Rated power consumption/ W	<7W	<7W	<7W	<7W
Rated voltage/ DC	12V	24V	12V	24V
Flow under Atmospheric pressure	≥0.30L/min	≥0.30L/min	≥0.60L/min	≥0.60L/min
Max aspirating height	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa
Max drainage height (liquid)	≤-80Kpa	≤-80Kpa	≤-80Kpa	≤-80Kpa
Operating temperature	0-40ºC	0-40ºC	0-40ºC	0-40ºC
Safety protection current	/	/	/	/
Rated current(A)	≤0.36	≤0.16	≤0.36	≤0.16
Connection port	4mm inner diameter silicone tube
Lifetime	3000 hrs
Medium	Water, weak acid and base, etc.
Body material	PP(Materials can be replaced based on medium)
Diaphragm material	EPDM(Materials can be replaced based on medium)
Note: The suction negative pressure standard: the value is larger than standard value. (e.g.: -80Kpa)

2.Brushless motor diaphragm pump

Model	7121-31-ELN	7121-32-ELN	7121-61-ELN	7121-62-ELN
Rated power consumption/ W	<7W	<7W	<7W	<7W
Rated voltage/ DC	12V	24V	12V	24V
Flow under Atmospheric pressure	≥0.30L/min	≥0.30L/min	≥0.60L/min	≥0.60L/min
Max aspirating height	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa
Max drainage height(liquid)	≤-80Kpa	≤-80Kpa	≤-80Kpa	≤-80Kpa
Operating temperature	0-40ºC	0-40ºC	0-40ºC	0-40ºC
Rated current/ A	0.5	0.25	0.5	0.25
Safety protection current/A	2.0	1.2	2.0	1.2
Model	7121-31-ELM	7121-32-ELM	7121-61-ELM	7121-62-ELM
Rated power consumption/ W	<7W	<7W	<7W	<7W
Rated voltage/ DC	12V	24V	12V	24V
Liquid flow under Atmospheric pressure (full speed)	≥0.30L/min	≥0.30L/min	≥0.60L/min	≥0.60L/min
Max aspirating height	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa
Max drainage height(liquid)	≤-80Kpa	≤-80Kpa	≤-80Kpa	≤-80Kpa
Operating temperature	0-40ºC	0-40ºC	0-40ºC	0-40ºC
Rated current/ A	0.5	0.25	0.5	0.25
Safety protection current/ A	2.0	1.2	2.0	1.2
Connection port	4mm inner diameter silicone tube
Lifetime	>10000hrs
Medium	Water, weak acid and base, etc.
Body material	PP(Materials can be replaced based on medium)
Diaphragm material	EPDM(Materials can be replaced based on medium)
Note: The suction negative pressure standard: the value is larger than standard value. (e.g.: -80Kpa)

Corrosion resistant diaphragm pump parameters table
1 Brush series diaphragm pump

Model	7121-31-TLA	7121-32-TLA	7121-61-TLA	7121-62-TLA
Rated Power Consumption/W	<7W	<7W	<7W	<7W
Rated voltage/DC	12V	24V	12V	24V
Flow under Atmospheric pressure	≥0.30L/min	≥0.30L/min	≥0.60L/min	≥0.60L/min
Max aspirating height	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa
Max drainage height (liquid)	≤-80Kpa	≤-80Kpa	≤-80Kpa	≤-80Kpa
Operating temperature	0-40ºC	0-40ºC	0-40ºC	0-40ºC
Safety protection current /A	/	/	/	/
Rated current /A	≤0.36	≤0.16	≤0.36	≤0.16
Connection port	4mm inner diameter silicone tube
Lifetime	>1000hrs
Medium	Water, acid and base, etc.
Body material	PP,POM(Materials can be replaced based on medium)
Diaphragm material	fluororubber(Materials can be replaced based on medium)
Note: The suction negative pressure standard: the value is larger than standard value. (e.g.: -80Kpa). If you have special reagent tolerance requirements, please consult our technical staff.

 

Model	7121-31-PLA	7121-32-PLA	7121-61-PLA	7121-62-PLA
Rated Power Consumption/W	<7W	<7W	<7W	<7W
Rated voltage/DC	12V	24V	12V	24V
Flow under Atmospheric pressure	≥0.30L/min	≥0.30L/min	≥0.60L/min	≥0.60L/min
Max aspirating height	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa
Max drainage height (liquid)	≤-80Kpa	≤-80Kpa	≤-80Kpa	≤-80Kpa
Operating temperature	0-40ºC	0-40ºC	0-40ºC	0-40ºC
Safety protection current /A	/	/	/	/
Rated current /A	≤0.4	≤0.2	≤0.4	≤0.2
Connection port	4mm inner diameter silicone tube
Lifetime	>1000hrs
Medium	Water, acid and base, etc.
Body material	PTFE,ETP(Materials can be replaced based on medium)
Diaphragm material	fluororubber(Materials can be replaced based on medium)
Note: The suction negative pressure standard: the value is larger than standard value. (e.g.: -80Kpa). If you have special reagent tolerance requirements, please consult our technical staff.

2 Brushless series diaphragm pump

Model	7121-31-TLN	7121-32-TLN	7121-61-TLN	7121-62-TLN
Rated Power Consumption/ W	<7W	<7W	<7W	<7W
Rated voltage/ DC	12V	24V	12V	24V
Liquid flow under Atmospheric pressure	≥0.30L/min	≥0.30L/min	≥0.60L/min	≥0.60L/min
Max aspirating height	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa
Max drainage height (liquid)	≤-80Kpa	≤-80Kpa	≤-80Kpa	≤-80Kpa
Operating temperature	0-40ºC	0-40ºC	0-40ºC	0-40ºC
Rated current /A	0.5	0.25	0.5	0.25
Safety protection current /A	2.0	1.2	2.0	1.2
Model	7121-31-TLM	7121-32-TLM	7121-61-TLM	7121-62-TLM
Rated Power Consumption/W	<7W	<7W	<7W	<7W
Rated voltage/DC	12V	24V	12V	24V
Liquid flow under Atmospheric pressure (full speed)	≥0.30L/min	≥0.30L/min	≥0.60L/min	≥0.60L/min
Max aspirating height	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa	≥0.2Mpa
Max drainage height (liquid)	≤-80Kpa	≤-80Kpa	≤-80Kpa	≤-80Kpa
Operating temperature	0-40ºC	0-40ºC	0-40ºC	0-40ºC
Rated current /A	0.5	0.25	0.5	0.25
Safety protection current /A	2.0	1.2	2.0	1.2
Connection port	4mm inner diameter silicone tube
Lifetime	>5000hrs
Medium	Water, acid and base,etc.
Body material	PP,POM(Materials can be replaced based on medium)
Diaphragm material	fluororubber(Materials can be replaced based on medium)
Note: The suction negative pressure standard: the value is larger than standard value. (e.g.: -80Kpa). If you have special reagent tolerance requirements, please consult our technical staff.

Note: 
1.All flow and pressure are tested under standard atmospheric pressure;
2.If you have special reagent tolerance requirements or characteristic parameters, please consult our technicians;

Main features

Characteristics:
1)Offer pure liquid transport and gas aspirate environment;
2)Oilless, maintenance free, long lifetime;
3)Small vibration, low noise;
4)Good sealing, corrosion protection and corrosion resistance;
5)Easy to assemble.

Installation Instructions

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Brushless series 30 diaphragm pump
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