2 inch pvc blast gate

JET JW1142, 4-Inch Aluminum Blast Gate

JET JW1142, 4-Inch Aluminum Blast Gate


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Product Details

  • EFFICIENCY: Maximizes your dust collection system by directing and regulating air flow from one machine to machine.
  • FUNCTIONALITY: Clog-proof design eliminates the need for constant maintenance, along with an easy-sliding gate and locking knob to ensure perfect gate alignment.
  • DURABILITY: Features heavy-duty aluminum construction with a steel gate, designed for eliminating air leakage.
  • UNIVERSAL FIT: Blastgate is compatible with most shop vacs or shop dust collector systems with 4” ID hoses for woodworking.
  • VERSATILITY: A reliable extension port for your table saw, miter saw, planer, drill, and other woodworking machines
Part NumberJW1142
Item Weight14.4 ounces (408.24 grams)
Product Dimensions5 x 5 x 2 inches (12.7 x 12.7 x 5.1 cm)
Country of OriginTaiwan
Item model numberJW1142
Size11.9 x 8.8 x 4.5 inches (30.2 x 22.4 x 11.4 cm)
Item Package Quantity1
Included ComponentsAluminum Blast Gate
Batteries Required?No
Size11.9 x 8.8 x 4.5 inches (30.2 x 22.4 x 11.4 cm)
Item Dimensions LxWxH5 x 5 x 2 inches (12.7 x 12.7 x 5.1 cm)
Exterior FinishAluminum
Item Weight0.9 Pounds (0.41 kg)


Product Description

The JET 4" Aluminum Blast Gate is designed for JET dust collectors (but, its universal fit makes it compatible with most other dust collectors). This blastgate gives you ideal control over air flow between woodworking machines. Constructed with an aluminum body, and steel gate, this accessory is designed for years of use. Finally, this product is covered by JET Tool..

From the Manufacturer

You've done the right thing by outfitting your shop with a dust collection system--now make it work even better. Blast gates are used in dust collection systems to control airflow from one machine to another, maximizing system efficiency. These 4-inch OD top-quality blast gates feature a cast-aluminum body with steel gate and locking knob.

Similar Products

Jet tool, Dust collection system, Vacuum clamp

Customer Questions & Answers

  • Question: Does this have mounting brackets for the wall? What secures the stability?

    Answer: It is attached directly to the duct work with hose clamps and acts as an in-line gate to control the vacuum flow to different areas of your shop. The ducting itself is secured to the wall or rafters or wherever in your shop is most appropriate.
  • Question: are these 4 inch? Listing doesn't say

    Answer: Yes, 4 inches...almost. Loose fit on most hoses but clamps make up the gap. Some gorilla type tape helps if needed. I have had no problems with them.
  • Question: What is the throw of the 4-inch gate, from stop to stop?

    Answer: I would have to dig it out of the back of a possibles bin to measure it. Suffice it to say that I do not have it installed because it leaks too much air. The valve does not close as tightly as the black plastic one that I use now. Whatever you use, I suggest that if it is horizontal, you mount it with the valve slide pointed down since dust adn chips will gather in teh channel that holds the gate of any such valve. Sawdust in that chanel keeps the valve from closing completely. That said, the plastic one shuts tightly when mounted with the slide top down.
  • Question: Anyone use this with drain pvc? I am having very little luck keeping this connected in line between two of those said pvc pipes. Any pointers?

    Answer: We have used these Blastgates with metal pipe, and have been very satisfied with their performance. We did use selfthreading sheet metal screws to secure all joints.
  • Question: Anyone try this on 4 inch triplewall

    Answer: I ordered 3 (three) and they all work very well. I'm very satisfied!
  • Question: how wide are the flanges on the 2.5" gate?

    Answer: The flanges on my 4” gates are about 7/8 inches with a slight taper. The diameter of my gates are about 3 7/8”. The hoses are a loose fit for sure and rely on the clamps. I have a variety of different hose types and they all work fine with the clamp. On some of them, depending on the hose manufacturer, I added a couple rows of gorilla tape. Even with the taper and loose fit, they haven’t fallen off in over a year. I know this isn’t for the 2.5” but they sent me the question and I hope this helps.
  • Question: Does this have mounting brackets for the wall? What secures the stability?

    Answer: This is an "In-Line" gate and is not supposed to be mounted to a wall.
  • Question: Does this have mounting brackets for the wall? What secures the stability?

    Answer: The slide gate does not have a mounting bracket. You will need to make a custom bracket or attach it to rigid piping.

Customer Ratings

66 customers ratings

  • 5 Star 74%
  • 4 Star 15%
  • 3 Star 6%
  • 2 Star 3%
  • 1 Star 2%

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Customer Reviews

Be•• ••z

September 20, 2021

Much better than plastic

Unlike plastic blast gates it can be taken apart to clean

Ke•• ••on

June 9, 2021

Well built and durable

For my application this is perfect. Slides great and has gaps at the end to let the crumbs not clog up the slide. As it closes it pushes the debris out the end. Easy to work with and strong. Definitely worth paying extra for a metal one instead of plastic. The plastic one didn't slide well from the start. And it kept getting clogged up and wouldn't close all the way.

Ja•• ••on

May 9, 2021

Work great. Nice, sturdy blast doors

These are great. I bought a few of them for a PVS air filtration system I added to my garage. When I saw their quality I immediately ordered several more to replace plastic ones I had installed under my island work bench. They feel like they're going to last a good long time.

St•• ••er

May 8, 2021

Works great

Great quality would buy again

Ro•• ••bb

March 15, 2021

St•• ••hn

March 6, 2021

High quality

Very nice blast gate

De•• •• C

January 4, 2021


Plastic units always break, this one is well made and secured to hoses well

A.•• ••an

December 29, 2020

The set screw is a great feature.

It works great if I where to make any changes I would make the flanges longer.

Bi•• ••om

July 14, 2020

Finally finished my sealed dust collection system.

These blast gates match the others in my system and allowed me to complete my reworked sealed system. Gates are well made and durable. I expect system to last longer than I will.

br•• ••er

April 1, 2020

Sours: https://www.ubuy.com.ru/en/product/4AJO79G-jet-4-aluminum-blastgate-for-jet-dust-collectors-jw1142

POWERTEC 70133 2-1/2-Inch Blast Gate for Dust Collector/Vacuum Fittings

POWERTEC 70133 2-1/2-Inch Blast Gate for Dust Collector/Vacuum Fittings


200 ratings Write a review

Item #:


This product is not Fulfilled by Ubuy and can take minimum 10 days in delivery. We might cancel the product from the order and refund you if any issue arise with the delivery of this product.

Note: Electronic products sold in US store operate on (110-120) volts, a step-down power converter is required for the smooth device function. It is mandatory to know the wattage of the device in order to choose the appropriate power converter. Recommended power converters Buy Now.

Product Details

  • Maximizes the efficiency of dust collection system by directing the air flow from one machine to another
  • 2-1/2-Inch outlet diameter
  • Easy sliding gate action saves you effort and time
  • Tough, durable ABS material
  • 2-1/2-Inch nominal end measure 2-31/64-Inch O.D. and 2-19/64-Inch I.D.
ManufacturerSouthern Technology LLC
Part Number70133
Item Weight4.9 ounces (138.92 grams)
Product Dimensions6 x 4 x 3 inches (15.2 x 10.2 x 7.6 cm)
Country of OriginTaiwan
Item model number70133
Size2-1/2-Inch (538.5 cm)
Item Package Quantity1
Included Components2-1/2-Inch Blast Gate for Vacuum/Dust Collector (538.5 cm)
Batteries Included?No
Batteries Required?No


POWERTEC 2-1/2-Inch Blast Gates optimizes the efficiency of your dust collection system by seamlessly directing the airflow from one machine to another. Save time and hassle with the handy sliding gate; just glide the gate through the case for a thorough cleaning. Durable ABS material. Effective, hassle-free, and simple to use - this essential dust collection accessory comes in handy every time! 2-1/2-Inch nominal end measure 2-31/64-Inch O.D. and 2-19/64-Inch I.D.

Similar Products

Air duct cleaning, Air sanders, Duct tools, Abs fittings, Sanding machine, Best Rated in Vacuum & Dust Collector Replacement Parts

Customer Questions & Answers

  • Question: What is the Inside diameter of the 2 1/2 inch gate

    Answer: 2 1/2 inch, although it doesn’t really matter. This thing fell apart in 2 weeks. Buy an aluminum one.
  • Question: how would this connect to 2" pvc?

    Answer: You would have to used a reducer in order to make that work from 4" to 2" you may also need to get a reaming tool to flare the 4" side to make it fit, or put on a rubber ring to make it snug.

Customer Ratings

80 customers ratings

  • 5 Star 65%
  • 4 Star 20%
  • 3 Star 8%
  • 2 Star 3%
  • 1 Star 4%

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Customer Reviews

Ed•• ••ck

October 7, 2021

These will clog and become useless. See pictures below.

When starting out I bought these blast gates for my wood shop. At first they seemed great I bought 6 of them for about $36. I have used these for about 7 months and I am already replacing them all with the metal ones for about $50. The problem with these is they clog up and there is virtually no way to clean them. The pocket the door slides in has no opening at the bottom to push dust and debris out. I even cut one open to show how the dust just packs into the pocket preventing it from closing completely (see picture for how far it now closes). Don’t make my mistake buy the slightly more expensive metal ones that have an opening at the bottom preventing clogs from ever happening. Sadly these have become useless and are going straight into the garbage.

Am•• ••er

August 25, 2021

Jo•• ••wn

August 4, 2021

Not impressed

The void where the door slides into gets full of saw dust and doesn't shut.

Ky•• ••S.

June 10, 2021

Clogged track

Be careful how you orient this on installation. I ended up having to reinstall mine with the blast gate facing down because fine dust will gather and compact in the tracks and keep the gate from shutting over time.

Ga•• ••an

June 8, 2021

Works - sorta

I bought this to be able to switch between my miter saw and table saw, however it is difficult to complete close off either saw, seems like something is preventing the gate from closing completely, but the is nothing there

Et•• ••ss

May 19, 2021

Jams with dust.

This gate jammed with dust in no time flat. I broke it open, cleaned it out, and glued it back together. It worked for a short time, then jammed again. I purchased their aluminum version which looks MUCH better.

Mi•• ••e

April 20, 2021

Se•• ••an

April 18, 2021

Clog and are almost impossible to clean

I used these for a shop vac dust collection system in my garage workshop. These blast gates worked for maybe a month before my system began loosing power. These clog with sawdust and are almost impossible to clean. Better to build your own.

Da•• ••ll

April 3, 2021

It’s ok...

No way to mount it to anything.

Am•• ••MN

March 26, 2021

Very disappointed in this, do not recommend

The "self cleaning" description on this product is laughable. If you buy this, expect to have to frequently take your system apart to pull these and clean them. Oh, and by clean them, I mean you CAN'T effectively clean them. The groove that stuff collects in and makes it so you cant close these properly are so deep you can't even get a tool in to clean it out! Everything about this is frustrating and not worth it. Time to start swapping these out for something better. Wish I'd never spent the money on these in the first place.

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Sours: https://www.ubuy.com.kz/en/product/T24TOH2-powertec-70133-2-1-2-inch-blast-gate-for-dust-collector-vacuum-fittings
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Downsize PVC to fit blast gates

Downsize PVC to fit blast gates

When I installed a central ductwork system for my dust collector, I used 4" PVC pipe instead of steel and saved 75 percent on the cost. But the inside diameter of the 4" PVC is 18 " too large for blast gates designed for steel ducts. My dad and I solved that problem by shrinking the PVC pipe slightly with a propane torch.

To soften the PVC for the joints, we slipped a hose clamp over the pipe and carefully heated the pipe until it softened. With the pipe end soft, he slipped the fitting into the pipe, slid the hose clamp up near the end, and tightened it to snug-up the softened PVC end. Once the pipe cooled and hardened, we removed the hose clamp to use for the next joint.

Finally, I secured the blast gate to the pipe with a sheet metal screw. With no tape, glue, or steel, and only a single hose clamp, it's a clean, simple way to build an inexpensive but effective collection system.
—Scott Perry, Tinley Park, Ill.

Sours: https://www.woodmagazine.com/woodworking-tips/reader-submitted-shop-tips/downsize-pvc
Sawmill Creek Woodworking Community - Powered by vBulletin

  1. 02-21-2018, 9:41 PM#1

    Thoughts on using 2" PVC ball valves as blast gates?

    I'm using 2.5" dust collection in my small shop and I liked the idea of using some PVC ball valves for blast gates -- I just like the clean look of them and the sealed fitting versus the plastic or aluminum blast gates.


    However, when I checked them out at the big box store, I found every single one they had in stock virtually impossible to open/close -- they were far too stiff.

    Does anyone here use them? Thoughts?

  2. 02-21-2018, 10:24 PM#2
    Join Date
    Oct 2006
    Bloomington, IL
    I use them in a cnc vacuum clamping manifold i built. Once they are held by pipe you can turn them in my experience.

  3. 02-21-2018, 10:34 PM#3
    "Anything seems possible when you don't know what you're doing."

  4. 02-22-2018, 7:34 AM#4
    Join Date
    Jun 2008
    Indianapolis, IN
    I have a feeling they would get jammed up too.

  5. 02-22-2018, 8:07 AM#5
    I haven't used them for that purpose, but I have been disillusioned with the cheaper plastic gates I have used. My solution was to make a wooden manifold with built in wooden gates close to my chip separater. It seems to have completely eliminated the clogging and jamming issues. I think that having the gates oriented so the flow through them is downward helps. Doing that may also help for your ball valves.

    I'd suggest trying one ball valve for a while as a proof of concept before building the whole setup.

  6. 02-22-2018, 2:15 PM#6
    Join Date
    Apr 2015
    For all of my uses, they'd be too small. I have a 6" trunk line with a few 4" and 6" ports coming off of it. A 2" opening has 1/4 the open area of a 4" opening-- and I could make that work on my small CNC machine, but it's unfortunately not going to cut it on any of the other equipment.

    Depending on the size of your ducting, I've seen guys use dampers instead of blast gates. I'd imagine they don't seal nearly as well, but everything is contained in the duct with only a small handle/level on the outside.
    Licensed Professional Engineer,
    Unlicensed Semi Professional Tinkerer

  7. 02-23-2018, 12:25 AM#7
    Join Date
    Sep 2016
    Modesto, CA, USA
    look into the gate valves used on sewer lines for trailers. I think they are 3" or 4" diameter.
    BILL D

  8. 02-23-2018, 3:24 AM#8
    Join Date
    Apr 2016
    Ball valves work well provided they are well supported and correctly sized. Don't drop down in diameter from your ducting. They don't clog, they don't jam until they are worn beyond recognition and they are wear resistant provided they are fully open. The quickest way to wreck a ball valve in an abrasive environment is to part open them. The ball gets damaged. Fully open the ball is fully protected. Cheers

  9. 02-23-2018, 9:21 AM#9
    Join Date
    Dec 2014
    Make your own, I made a bunch of these in 4 and 6 inch. Was easy and cheap.


  10. 02-23-2018, 10:28 AM#10
    Join Date
    Feb 2018
    Peoria, AZ
    You'd be taking 20% of the diameter away from your already-too-small collection system.

  11. 02-23-2018, 7:24 PM#11
    Join Date
    Feb 2003
    Griswold Connecticut

    That's actually not a bad idea. I think that 2" is sort of small, and would probably upsize them, so that the ID's were as close as I could get them.
    "The first thing you need to know, will likely be the last thing you learn." (Unknown)

  12. 02-23-2018, 8:40 PM#12
    Join Date
    May 2017
    I have a very good dust system set up with a shop vac in my shop. The ball valves work very well and will loosen up over time. I have used my band sander to soften the edges of the housing to let the ball turn easier. Never any problem on my planer, bandsaw or grinder.

  13. 02-24-2018, 12:14 AM#13
    Join Date
    Sep 2016
    Modesto, CA, USA
    Quote Originally Posted by Carlos AlvarezView Post
    You'd be taking 20% of the diameter away from your already-too-small collection system.
    they will reduce the area of the air flow down to 64% of 2.5.

    I was shocked when I realized that a 14 inch roof vent has 50% more area the a 12'" I assume the air moved is about that same ratio as well.
    Bil lD

  14. 02-24-2018, 11:29 AM#14
    Quote Originally Posted by Bill DufourView Post
    they will reduce the area of the air flow down to 64% of 2.5.

    I was shocked when I realized that a 14 inch roof vent has 50% more area the a 12'" I assume the air moved is about that same ratio as well.
    Bil lD

    Excellent math-and very convincing!

    This, combined with the repeated stories of difficulties opening/closing these ball valves, I'm going to opt for aluminum blast gates instead.

    If I could find 2-1/2" ball valves for a reasonable price, I might be inclined to try, but those have proven elusive. 2" valves are readily available online for only $7 or so; but going up to 2-1/2" proves cost-prohibitive--the cheapest 2-1/2" PVC ball valve I can find online or elsewhere is at least $30!

    Instead, I'll be sticking with the 2-1/2" aluminum gates (like the one below) which are available on amazon for under $8.

    I still really like the clean look and functionality of a PVC ball valve, in theory, but the problems above simply overwhelm the aesthetic appeal.

    Thanks everyone for the input; I appreciate it.


  15. 02-24-2018, 1:01 PM#15
    Join Date
    Sep 2016
    Modesto, CA, USA
    Once you are set up with a hole jig for a router, making a blast gate is pretty quick. I used gorilla glue to glue in short stubs of pipe on each side. I made some from scraps of cherry and they do look nice. Remember the slider only has to seal on one side. I even round over the inside of then pvc on the end.

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Blast gate inch pvc 2

2 1/2" Blast Gate for Dust Collection Network

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A 2 1/2” blast gate for our dust collection network.


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PVC Duct Blastgate

PVC ductwork can perform many functions in a home or commercial setting, but most of those involve directing air, fumes and gasses. Sometimes, PVC ductwork is used in vacuum systems, and this requires the use of PVC duct blastgates to help regulate the suction. PVC duct blastgates are designed to concentrate suction when collecting dust and debris from a ductwork system. Blastgates are able to open and close quickly to change the function or direction of the system, which is important when the need to vent or redirect fumes and contaminants changes.

In commercial settings, dust can be a very serious problem that requires proper ventilation. A vacuum system to remove dust and other materials is an important part of maintaining a healthy work environment for employees. Blastgates play a vital role in this type of system, and blastgates can be placed near each machine in a factory type setting to make removal of dust simple.

In typical use the blastgate is closed, which blocks air flow. When dust or other debris needs to be removed, the blast gate near the machine that is creating the dust will be opened. This forces all available suction to go to that location, maximizing the amount of dust collected. Some systems will require multiple blastgates so that one can remain open at all times, in order to avid problems created by too much suction.

Because of the amount of suction that can be directed toward PVC duct blastgates, they need to be strong. That is why PVC is such and ideal material for these systems. PVC is known for being a strong, warp-resistant material that will stand up well under the pressure created by a vacuum system. To meet all of your needs, we offer PVC duct blastgates in many different diameters. Choose everything from 2 inch diameters to 24 inches to meet a wide range of needs. Shop today to find the PVC duct blastgates that will best meet your needs.

Sours: https://www.commercial-industrial-supply.com/fittings/pvc-duct/blastgate.html

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PVC Duct Blastgates

Blast gate fittings are unique contraptions that can be opened and closed to allow and block air flow in a duct system. Our blast gates are made of PVC and come in a wide range of sizes to suit your application. They are even available in small sizes down to 2 inches!

Generally, blast gates are left closed during standard operation and can be opened to concentrate the pull or suction of contaminants like dust. A duct system may even have multiple blast gates at different points to accomplish multiple purposes. In PVC duct systems that are large and powerful, it may be necessary to keep some blast gates open at all times in order to prevent too much suction within the duct. For this reason, it is important to plan our positioning of these fittings strategically.

Our PVC duct blast gates come in sizes up to 24 inches. Depending on how many you order, some sizes may require a few days to manufacture, as these are fairly specialized fittings. Most items, however, are stock and ship next day. Shop our selection today and save on all your PVC duct fittings!

Sours: https://www.pvcfittingsonline.com/fittings/pvc-duct/blastgates.html

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