Diaphragm Pump for Laboratory/Medical/Environmental Instruments Application

• Certification: EMC, ISO9001:2000, RoHS, CE
• Rated Current: 12/24VDC
• Voltage: 12V
• Material: Plastic
• Power: Electric
• Valve Body Type: Diaphragm
• Model NO.: 7121-32-ELN
• Function: Electronic Type
• Diaphragm Material: EPDM/FKM
• Performance: Wearable
• Requirements: Materials Can Be Replaced Based on Medium
• Motor: DC Motor or BLDC Motor, Optional
• Usage: Energy Soure in Liquid Application
• Transport Package: Blister+Foam
• Specification: 30*78*58
• Trademark: Keyto
• Origin: China
• HS Code: 8413503190
• Production Capacity: 500, 000PCS Per Year

Product Description

Product Overview
7121 series micro diaphragm pump is a new module that independently developed by Keyto. The main function is through the motor diaphragm
reciprocating movement to achieve gas suction and discharge.
This series is wide used in medical equipment, environmental protection equipment, instrumentation, mechanical chemicals, household electrical, laboratory and other high-end fields.

Characteristics of of 7121 Series Diaphragm PumpThe 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.
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.

7121 Series Main Specification

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.

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.

Products photo