FlexPVC®.com is a registered trademark of PVC DistributorsLLC for the sale of Flexible PVC Pipe, Rigid PVC Pipe, PVC Fittings, PVC Glue/Cement, PVC Tools, hoses, tubing, and other non-metallic pipe and fittings.
90% of all pvc pipe & plastic pipe fittings we sell are

Customer Reviews
SSL Labs Rates Our Security "A+"


If your order is time sensitive, please use one of the expediated options on the check out page. Due to demand and lack of raw materials (due to govt shut downs, weather and fires) large orders for some items are out of stock for 1-3 months. Also please read UPS Suspends Performance Guarantee and shipping costs are rising very fast. Special order items may be delayed longer. Orders accepted 24/7/365 via the website. Toll Free Tech Support Hours: Mon-Fri, 10am to 4pm, PST. Thanks!

FlexPVC® Selection Guide: Which flexible pvc pipe, hose or tubing is best for my application? Flexible pvc pipe cut to length. Dimensions for Rigid Sch 40, Sch 80, Clear, White Glossy Furniture grade PVC pipe cut to length. 3 ways, 4 ways, 5 ways and 6 ways, Furniture Grade PVC Pipe Plastic Fittings. Snap Clamps to secure screen, tarps, fabric, etc to pvc pipe. PVC Plastic Pipe Fittings Selection Guide. Includes: 3 Ways, 4 Ways, 5 Ways, 6 Ways, Tees, Elbows, Male & Female Adapters, Couples, Unions, Reducer Bushings, Caps, Wyes, and 45 degree, 22 degree & 11 degree elbows.

» Pipe Size Chart « Specs & Dims Technical How To Articles FAQ, RFQ, & Videos Shipping Information Site Navigation
Contact FlexPVC® via Email.
View Cart FlexPVC®.com Shopping Cart
Wall Of Shame!

"If there be any among us who [disagree], let them stand undisturbed as monuments of the safety with which error of opinion may be tolerated, where reason is left free to combat it." Thomas Jefferson, March 4, 1801

Clear PVC & Acrylic Pipe

Sch 40 White PVC Plumbing Pipe

Sch 80 Gray PVC Plumbing Pipe

Furniture Grade Glossy White Pipe


Thinwall PVC Pipe

Metric PVC Pipe

Flexible PVC & Rigid PVC Pipe and PVC Pipe Fittings - PVC Furniture Fittings - Ball Valves - Barb Fittings - Bulkhead Fittings - Cements, Glues & Adhesives - Check Valves - Flanges - Garden Hose Fittings - John Guest Tubing & Fittings - Manifolds & Distributors - Metric Adapters - Mounting Clamps - Nipples - Pumps - Repair Parts - Unions - Valves - Wyes - and lots more.
PVC Venturi Tees | Venturi Tee Fittings | FlexPVC® The chart below only applies to the 473-xxx series of Venturi Tees on this page.

473-xxx Venturi Tee Details & Specs (scroll down to order)

See our Venturi Video on Youtube if you don't want to read all the stuff below. ;-)

Note: The numbers in green are the pressure differential needed to achieve the vacuum in the vacuum port of the Venturi tee fittings. The pressure differential is the difference in pressure between the input and output of the PVC Venturi tees.

As an example suppose you had a tank 10' tall with 10' of water column in it. 10' of water column converts to about 4.5psi. Now lets say you want your Venturi to pull 15inHg of vacuum. What that means is you need 22 or 23 GPM thru the Venturi. So you look in the chart on the right and you will see 20 and 25GPM. Now you decide to run a 3/8" nozzle in the Venturi. You can see you need between 72.6psi (at 20GPM) and 119.3psi (at 25GPM) so you can extrapolate you will need about 96psi ((72.6+119.3)/2). However the tank water column has about 4.5psi on the output of the Venturi. You will need about 100psi at the input of the Venturi tee fitting (96+4.5). So you will have to have a pump that will provide about 100psi thru a 3/8" opening. Or if you wanted to use a 1/4" orifice you need a pump that could put out about 485psi. ((369+599)/2+4.5)). Or if you used a 1/2" orifice (you'd have to drill out the 7/16th orifice to do this) you could use a pump with 36psi ((23.4+37.5)/2+4.5).

If you wanted a different vacuum you'd have to redo the whole calculation. So you can see it's easier to use a larger orifice. If you are using several PVC Venturi tees off one pump, you can run out of pump very quickly. For example, it's easy to find a pump that will do 36psi at 25GPM, but if you had 5 Venturi tee fittings that be 36psi at 125GPM, which would be about a 3-5hp pump!

This is where the Pump Flow Chart comes in handy. Most of the pumps we sell have a flow chart that shows pressure (PSI) as a function of flow (GPM). You will need to calculate what vacuum you want and the number of PVC Venturi tees you want and then find a pump that will provide the pressure and volume needed.

OUT OF STOCK473-210-3 Venturi Tee 1.5 x 1.5 x 3/4 x 3/8 nozzle COO:USA

OUT OF STOCK473-210-3 Venturi Tee 1.5 x 1.5 x 3/4 x 3/8 nozzle COO:USA - PVC-Venturi-Tees


*More Info & Details

Home | Shortage Policy | Return Policy | Cancellation Return Policy | Pipe Vs Hose | Rush Orders | what fitting do i need | What Fitting Do I Need | glossary | Glossary | cancellation return policy