Defiance DEF20
20 gallon pressure vessel

Along with the best diaphragm, Defiance also comes standard with its new anti-microbial liner (polypropylene co-polymer) on the bottom half of the water chamber. The upper chamber is made of blended butyl rubber.

Solid 16 gauge steel tank, finished with the highest quality urethane paint for
stand up to the wettest basement or crawl space.

Get unparalleled performance and premium quality.

Connection: Welded steel NPT thread.

Tests: high pressure, weld bead, helium, final check of the preload.

Air valve: Brass valve with O-ring.

* It is important that the well tank size has been calculated to match the pump outlet and the number of people and facilities in the building. If you are unsure, please contact us before making a purchase.

Features

Manufacturer:	Flexcon Industries
Model:	DEFIANCE DEF20
Tank capacity:	20 Gallons
Body build:	Cold rolled steel
Body finish:	Appliance grade paint for interior or exterior installation
Tank Precharge:	38 PSI
Lowering with 20/40 switch:	8.1 gallon
Lowering with 30/50 switch:	6,8 gallons
Lowering with 40/60 switch:	5,9 gallons
Tank diameter:	16″
Tank height:	29″
Tank weight:	36 lbs
Pipe Tap Size:	1″ npt
Maximum rated pressure:	125 PSI
Certification	NSF/ANSI 61-NSF/ANSI 372
Limited warranty	5 years by the manufacturer

When should a pressure tank be replaced?

Due to its importance, the replacement of the tank should be done to prevent its breakage in its 15th year. It is always better to have a tank in good condition, it prevents more expensive pump breakage.

Calibrate a pressure tank

Watch the video on How to Calibrate a Pressure Tank (FR)

Warranty

The Defiance DEF20 tank comes with a 5 year manufacturer’s warranty.

Specs Sheet

Download the Flexcon Industries PDF to view Defiance products.

For more information on pressure tanks, visit our FAQ page.

Order your tank