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NANPU DFR-03 3/8' NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl

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$46.99

$ 22 .99 $22.99

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  • 3/8" NPT Piggyback Air Filter/Regulator Combo
  • Double 5 Micron Brass Filter Element, Excellent Filtering Performance, Much Longer Life and Reuse Feasibility
  • Temperature Range: 41-140℉ (5-60℃);Flow Rate: 70 SCFM (2000 L /Minute)@ 90 PSI
  • Max Supply Pressure:145 psi; Operating Pressure: 0-125 psi
  • Includes Semi-Auto Drain & Polycarbonate Bowl with Metal Guard, 0-150 Gauge & Bracket,a pair of Air Coupler& Plug Kit, 2 x 3/8" NPT Fittings, 1 x Thread Seal Tape



Product Description

NANPU 3/8" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo

Double air filters is designed to remove most liquid and solid particles from the air supply,more cleaner than ordinary single filter. The Self-Relieving Pressure Regulator is used to adjust the outlet pressure.

Filters/Regulator

Brand Package & Foam Box

Accessories

User's Manual

Installation and Operating:

stpe1

Preparation

The assembly of all calibration shall meet the maximum flow requirement.

Please clean the port and fitting before installation, it will effectively avoid bring dust to the air path.

Pay attention to direction of air flow and arrow pointing on product body if correct, minding port and thread size if match.

stpe2

Pressure Adjustment

Pull up the knob of pressure gauge, rotate:

If you do clockwise rotation, pressure will rise steadily.Pressure will down when you rotate counterclockwise.

Stop turning after reaching the required index and lock down the knob,forget this step you may face leakage problem.

stpe3

Dial Reading

Make sure that the pressure gauge is tightly installed on the main body, and pay attention to whether the reading rises and falls smoothly while adjusting pressure.

Stpe4:

Drainage

Drainage column will automatic excrete if there is no pressure,and it will close during the air flow passing. When the water level is beyond upper limit, drainage is necessary, otherwise that will cause poor dehumidification.

Notice:

Please use a wrench to tighten fittings to avoid leakage.

The first installation may have an excretion reaction ( Not leakage, for the first time the internal pressure is different from the outside, it is necessary to discharge the excess air first ) In this case, please patiently wait for a while and it will work well.

TECHNOLOGY CHANEGS LIFE & TECHNOLOGY CHANGED BY NANPU

1

NANPU - Dedicate to F. R. L

After more than 30 years of development, NANPU Pneumatic has a professional air power system design and production team to provide customers with high quality and services. Since clean air is indispensable part in many fields of industry for all kinds of equipment and tools, NANPU F.R.L (Air Filter, Air Regulator, Air Lubricator and their combinations) can make your air supply safer and more efficient. We provide customized products and services for your various needs.


Constitutionalconservative
2025-09-01 16:01:23
Price is great, was exactly what I needed for my DIY projects with my compressor. Sturdy, easy to use and the size is perfect. Drains east, and keeps everything working smoothly and the design is small and perfect.
Prakash
2025-08-18 17:01:22
I am very pleased with this set up. I really like that it comes in several inlet/outlet sizes and volumes. Make sure you choose the correct size and volume for your application. It seems to be a good quality product for the money and I used it to replace a simpler Craftsman one that I had originally installed on my airlines. the tank on my Craftsman failed so I thought I would try this set up instead. It has a nice mounting design, comes with all the necessary fittings and even some Teflon tape. Time will tell, but for now I am thrilled and I will probably add several to my shop airlines where I work.
Darth Geek
2025-08-17 13:03:27
I was really impressed with this unit. All the fittings I needed were included, plumber's tape (though it is really thin), and it came mostly assembled. The way they designed this makes each module interchangeable. I actually removed the module with the pressure gauge to do a pressure test, everything worked perfect without the filters attached. The included instructions are very brief and not translated well. Fortunately everything is marked with arrows for flow on the top of each module and the regulator has indications of how to lock as well increase/decrease pressure.The two reasons I marked this as 4 stars rather than 5: the filter drain valve assemblies and small air leaks.*For my small airbrush compressor, the drain valves do not close by themselves. I have to manually hold them shut in order for the filters to build pressure to hold them closed. Its a little annoying but still functional.*I'm also have issues with the fittings and modules holding pressure (compressor discharge is 57psi rated, gauge shows approximately that). With the supplied plumber's tape and the supplied fittings, I cannot hold pressure. I have a slow leak that short cycles my compressor. All the fittings are tightened except the pressure gauge which is very difficult to get a wrench on due to the small clearance between the gauge and the body. I have hand tightened it as far as I can.Recommendations to the manufacturer:*I would recommend either including a thin wrench that allows you to tighten the pressure gauge or install the gauge at the factory.*I would upgrade the plumber's tape to something a bit more robust. If it leaks at 60psi, I can imagine what others are experiencing.*Change the spring in the drain valves so low pressure/flow compressors can close the valves without manual interaction.
Trey McGahee
2025-07-25 15:11:59
Eazy to install and works great
RCC
2025-07-22 11:30:45
I actually installed two of these items in my shop. They really work well to eliminate water in the compressor air lines! I would definitely recommend to buyers looking for a quality Air Drying System.Product UPDATEI’m EXTREMELY DISAPPOINTED WITH MY PURCHASE OF TWO OF THESE DEVISES. My initial review was very positive, a huge MISTAKE. After less than 2 months of use, both units LEAK AIR AT THE FILTER BOWLS, the GAUGES BOTH LEAK AIR, the Very FRAGILE BOWL AIR RELEASE VALVES LEAK, and Neither Devise helps to remove water or condensation from my shop pneumatic system. These are just another piece of foreign JUNK. Cheaply made with cheap plastic parts, BUYER BEWARE, these devises are not worth your $ investment, and constant air component air leaks causing my compressor to run on very frequent cycles. JUNK WITH A HIGH PRICE. Don’t waste your hard earned $$ with this company’s JUNK PRODUCTS . Spend a little more, and get a better quality devise. A TOTAL WASTE OF MY MONEY!
Noel
2025-07-04 15:38:40
I really liked this when I first installed it. Now a year later it is leaking substantially, and I will need to find a better product to replace it.
Kenneth L.
2025-05-17 10:35:22
If you need extra filtering, this will do the trick. Works great for my plasma cutter.
Customer
2025-05-13 11:10:16
The design is really bad. There's a little button at the bottom of these that you press to eliminate water from the system. They have a little spring and o-ring seal on them so that they stay air tight when the air is running through. The air pressure going in is supposed to seal it. Within 2 days of installation that area started leaking. The filters seem to catch debris which is good, except for the fact that the debris makes the o-rings not seat properly which lead to air leaks. I decided I just wouldn't push the button unless the catch was full of water so I cleaned and greased the catch cup and o-ring thinking it would stop the issue. Again, it worked fine for a day. The next day it was leaking again. This company needs to re-design the water drain function because it makes the whole setup useless. If you do buy, I would recommend NEVER pressing that button and allowing debris to get under the o-ring.
Congaman
2025-03-26 10:15:47
Installed unit as per instructions and compressor pressure is 120 psi but regulator would go to a max of 75 psi. Contacted supplier and they sent a replacement regulator. Problem solved and unit works great. Only caution is pay attention to airflow directional arrows not pictures in manual as they are confusing.
RH
2025-03-11 13:23:07
I bought this to improve the operation of a small sandblasting cabinet. As you can see in the pictures it is able to remove moisture from the supply air which was the main purpose of my purchase. The main body is metal and reasonable quality. I didn’t use the plastic airline fittings as they don’t appear to be very durable and installed regular metal fittings. Overall it works fine and was reasonably priced. Not a heavy duty unit by any means but serves its intended purpose and made my sandblaster work much better with the dried air.
Patrick
2025-01-14 12:53:01
The pressure guagevis too short and hits the housing. All I had was the 1/8 inch union to use as an extension. Just saying it's a nice piece but common can't you supply a guagevthat simply threads in
Mus
2025-01-13 11:46:50
Efficace!
Allan F.
2024-12-24 15:55:50
Item arrived and iwas hopeful... itvleaked because whoever assembled this cut the o-rings, so it leaked. Luckily I have o-rings so that was a semi fast repair.... it required 4 new o-rings. The nipples supplied were very cheap, cup drains were assembled backwards so it leaked out the bowls. Had to remove the bowls and assemble the valves correctly... all in all it's a shoddy item from China... I should have known it was too good to be true... now I'm wondering when the next weakness will pop up.... I wouldn't recommend this item unless you have real mechanical skills to repair the new item you purchased. Pretty disappointed to be honest.
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