Can these fans run 24/7?

Yes, mine have ran 24/7 since I installed them

I need the fun to suck air in, rather than pushing it. I assume I can't do this because it is not possible to reverse the polarity,right?

It depends how you you mount it. There is an arrow to tell you which way the air is flowing so you should be able to rotate it to the direction desired. I needed it to suck and was mounting it inside a box followed the arrow and it worked wonderfully.

I need to feed this cable thru small opening. Does power cord detach at the fan?

Yeah the power cord can be detached at the fan and run thru an opening then reattached very easily.

Is it possible to reverse the polarity and/or vary the voltage (rpm)?

This is an 120VAC alternating current fan. There is no way to reverse the polarity because it doesn't have a polarity. It's AC. You could reverse polarity (and direction) on a DC (direct current fan) but not on an AC motor/fan.As far as slowing the fan down, you could probably apply some sort of SCR or Resistor voltage control in-line with the fan however, the fan may or may not be happy with decreased voltage and could possible fail. It was designed as a one-speed fan. I would look for a fan that had capability of reversal & speed control built-in by design if I was to pursue your fan dream. Good Luck, Ed/Central California

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AC Infinity AXIAL 8038, Quiet Muffin Fan, 120V AC 80mm x 38mm Low Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects

Product ID: 1043999

Details

Brand
AC Infinity
Compatible Devices
Desktop
Cooling Method
Air
Material
Copper
Maximum Rotational Speed
2000 RPM
Noise Level
28 Decibels

⏳67,000 hrs lifespan

🌀23 CFM airflow

🔇28 dBA ultra-quiet

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¥6770

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Stay cool, stay ahead — the silent powerhouse your projects deserve!

PLUG PLAY READY - Comes with power cord, fan guards, and mounting screws for hassle-free setup.
VERSATILE MOUNTING - Install it any way you want—360° flexibility for all your DIY ventilation needs.
ENDURANCE ENGINEERED - Dual-ball bearings deliver an impressive 67,000-hour lifespan for long-term reliability.
WHISPER QUIET COOLING - Ultra-low 28 dBA noise keeps your workspace serene and focused.
POWERFUL YET EFFICIENT - Delivers 23 CFM airflow at a modest 7 watts, balancing performance and energy savings.

The AC Infinity AXIAL 8038 is a UL-certified, low-speed 80x80x38mm muffin fan designed for quiet, efficient cooling and ventilation. Operating at 2000 RPM with 23 CFM airflow and only 28 dBA noise, it features durable dual-ball bearings rated for 67,000 hours. Ideal for DIY projects or as a replacement fan, it includes all mounting accessories and supports flexible installation.

Specifications

ASIN	B009OXTWZI
Air Flow Capacity	23 Cubic Feet Per Minute
Best Sellers Rank	#275 in Computer Case Fans
Brand Name	AC Infinity
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.7 4.7 out of 5 stars (2,118)
Global Trade Identification Number	00854759004273
Item Dimensions L x W x H	1.5"L x 3.15"W x 3.15"H
Item Weight	1.05 Pounds
Manufacturer	AC Infinity
Material Type	Copper
Maximum Rotational Speed	2000 RPM
Model	LS8038A-X
Noise Level	28 Decibels
Number of Items	1
Part Number	LS8038A-X
Power Connector Type	2-Pin
UPC	854759004273
Unit Count	1.0 Count
Voltage	115 Volts
Wattage	7 watts

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