{"id":7362,"date":"2023-09-22T15:18:54","date_gmt":"2023-09-22T19:18:54","guid":{"rendered":"https:\/\/www.pompemdg.com\/?post_type=product&p=7362"},"modified":"2026-08-07T10:54:08","modified_gmt":"2026-08-07T14:54:08","slug":"flexcon-defiance-20gallons","status":"publish","type":"product","link":"https:\/\/pompemdg.com\/en\/product\/pressure-tanks\/defiance-pressure-tank\/flexcon-defiance-20gallons\/","title":{"rendered":"Defiance DEF20 20 gallon pressure vessel"},"content":{"rendered":"

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.<\/p>\n

Solid 16 gauge steel tank, finished with the highest quality urethane paint for
stand up to the wettest basement or crawl space.<\/p>\n<\/p>\n

Get unparalleled performance and premium quality.<\/strong><\/p>\n<\/p>\n

Connection:<\/strong> Welded steel NPT thread.<\/p>\n

Tests:<\/strong> high pressure, weld bead, helium, final check of the preload.<\/p>\n

Air valve:<\/strong> Brass valve with O-ring.<\/p>\n<\/p>\n

* 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.<\/b> If you are unsure, please contact us<\/a> before making a purchase.<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t\tFeatures<\/a><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n
Manufacturer:<\/td>\nFlexcon Industries<\/td>\n<\/tr>\n
Model:<\/td>\nDEFIANCE DEF20<\/td>\n<\/tr>\n
Tank capacity:<\/td>\n20 Gallons<\/td>\n<\/tr>\n
Body build:<\/td>\nCold rolled steel<\/td>\n<\/tr>\n
Body finish:<\/td>\nAppliance grade paint for interior or exterior installation<\/td>\n<\/tr>\n
Tank Precharge:<\/td>\n38 PSI<\/td>\n<\/tr>\n
Lowering with 20\/40 switch:<\/td>\n8.1 gallon<\/td>\n<\/tr>\n
Lowering with 30\/50 switch:<\/td>\n6,8 gallons<\/td>\n<\/tr>\n
Lowering with 40\/60 switch:<\/td>\n5,9 gallons<\/td>\n<\/tr>\n
Tank diameter:<\/td>\n16″<\/td>\n<\/tr>\n
Tank height:<\/td>\n29″<\/td>\n<\/tr>\n
Tank weight:<\/td>\n36 lbs<\/td>\n<\/tr>\n
Pipe Tap Size:<\/td>\n1″ npt<\/td>\n<\/tr>\n
Maximum rated pressure:<\/td>\n125 PSI<\/td>\n<\/tr>\n
Certification<\/td>\nNSF\/ANSI 61-NSF\/ANSI 372<\/td>\n<\/tr>\n
Limited warranty<\/td>\n5 years by the manufacturer<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\t\t\t\t\t\t\t\t\t\t\t\tWhen should a pressure tank be replaced?<\/a><\/p>\n

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.<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t\tCalibrate a pressure tank<\/a><\/p>\n

Watch the video on How to Calibrate a Pressure Tank (FR)<\/a><\/p>\n

\t\t\t\t\t\t\t\t\t\t\t\tWarranty<\/a><\/p>\n

The Defiance DEF20 tank comes with a 5 year manufacturer’s warranty.<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t\tSpecs Sheet<\/a><\/p>\n

Download the Flexcon Industries PDF<\/a> to view Defiance products.<\/p>\n

For more information on pressure tanks, visit our FAQ page<\/a>.<\/p>\n

\t\t\t
\n\t\t\t\t\t\tOrder your tank
\n\t\t\t\t\t<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Defiance Series tanks are pre-charged, diaphragm-type hydro-pneumatic tanks designed for residential and commercial water wells, boosters and irrigation systems. (entry level, best in class). Ideal for cottages and second homes Estimated lifespan:<\/strong> 8-10 years Warranty:<\/strong> 5 years *Online sale only<\/p>\n","protected":false},"featured_media":7536,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[817],"product_cat":[634,85],"product_tag":[149,150,151],"class_list":["post-7362","product","type-product","status-publish","has-post-thumbnail","product_brand-flexcon-industries","product_cat-defiance-pressure-tank","product_cat-pressure-tanks","product_tag-defiance-def-20-en","product_tag-flexcon-industries-en","product_tag-flexcon-en","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nDefiance DEF20 | Pompe M.D.G inc.<\/title>\n<meta name=\"description\" content=\"Defiance Series tanks are pre-charged hydro-pneumatic tanks designed for artesian wells and shallow wells. 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