How do you control the speed of the pump?

Generally, you don't try to control the speed of the pump, but rather...you control how long it has power. This is generally used as a dosage type pump. In other words, you apply power until it pumps what is needed...then you remove power.

can it be used to pump sulfuric acid?

Yes it can but, and this is a big but, you need to check how resistant to sulfuric acid the tubing material is. If you don't liek what you find, replacing the tubing with a different plastic is possible.

Can this pump be used for potable water? Is it possible to change the tube out for something food grade?

The tube can be changed - that's true for all peristaltic pumps although the difficulty varies - and thus if you use a suitable material use for potable water would be no issue. (Not sure of your application but you should be aware that the flow rate is quite low.)-

Yes, this will run on 9 VDC. I have tested as low as 5 VDC and it works fine as long as there is no significant back pressure on the discharge hose. The pump's flow rate is roughly proportional to the voltage supplied to it, so you can roughly estimate what your flow rate will be as Actual Voltage/12 Volts X rated flow at 12 volts.

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DIY Peristaltic Liquid Pump Dosing Pump for Aquarium Lab Analytical

Product ID: 127997628

Details

Brand
INTLLAB
Color
Black
Item Weight
6.35 ounces
Material
Silicone
Maximum Flow Rate
100 Per Minute
Number of Packs
1

⚡AC 100-240V universal voltage

💧Flowrate 5-100 mL/min precision dosing

🔧Easy disassembly & maintenance

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Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Pump up your precision — never miss a drop!

COMPACT PORTABLE - Lightweight 180g design fits anywhere, empowering your on-the-go experiments and automated setups.
VERSATILE APPLICATION - Trusted across labs, aquariums, biotech, pharmaceuticals, and environmental projects — be part of the innovation wave.
EFFORTLESS MAINTENANCE - Pump head designed for quick disassembly and cleaning, saving you time and hassle.
PRECISION FLOW CONTROL - Adjust flow from 5 to 100 mL/min with LED-indicated speed for flawless dosing every time.
UNIVERSAL VOLTAGE COMPATIBILITY - Works seamlessly worldwide with AC 100-240V, 50/60Hz — plug in and power up anywhere.

The INTLLAB DIY Peristaltic Liquid Pump offers precise liquid dosing with a flowrate range of 5-100 mL/min, powered by a universal AC 100-240V input. Its silicone tubing and easy-to-clean pump head make it ideal for diverse professional uses including labs, aquariums, pharmaceuticals, and environmental applications. Compact and lightweight, it delivers reliable, quiet operation for automated liquid handling wherever you need it.

Specifications

ASIN	B07PWY4SM6
Best Sellers Rank	#70,956 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Lab Dosing Pumps
Brand Name	INTLLAB
Color	Black
Customer Reviews	3.8 3.8 out of 5 stars (92)
Flow Rate	100 Milliliters Per Minute
Item Dimensions L x W x H	3.94"L x 2.36"W x 2.17"H
Item Weight	6.35 ounces
Manufacturer	INTLLAB
Manufacturer Part Number	DP-385
Material Type	Silicone
Model Number	DP-385
Power Source	Battery Powered
Product Style	Submersible
UPC	701705886066
Voltage	240 Volts

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