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Expansion Tank

Amtrol AX40


Expansion Tank Extrol Head & Shell 21.7 Gallon 175-300 Pounds per Square Inch Gauge 1/2" NPTF AX40 ASME for Closed Non-Potable Hydronic Heating and Chilled Water Systems

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Product Overview

Amtrol hydronic expansion tanks are for use in closed, non-potable hydronic heating and chilled water systems. Available in diaphragm, full acceptance and partial acceptance bladder designs, all Extrol expansion tanks are made in the USA at our ISO 9001: 2008 registered facilities. ASME tanks meet all Section VIII, Division I standards.

  • 12 psig factory precharged
  • Industries thickest fixed butyl/EPDM diaphragm
  • 1/2 in NPTF malleable iron center system connection
  • Schrader valve with EPDM seat air valve
  • Without saddle

Product Details

BrandAmtrol
Product TypeHead and Shell
Tank Capacity21.7GAL
Pressure175-300PSIG
Inlet/Outlet Connection1/2IN NPTF
Part NumberAX40
StandardASME
Precharge Pressure12PSIG
Temperature240DEG F
Diaphragm MaterialHeavy Duty Butyl/EPDM
MaterialSteel
ApplicationClosed, Non-Potable Hydronic Heating and Chilled Water Systems
Length29IN
Width16IN
Height16IN

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Shipping & Returns

For Guest transactions, we offer a 30-day SATISFACTION GUARANTEE. If you receive a damaged or defective item or you are dissatisfied with a product for any reason, you can return it for an exchange or refund within 30 days. F.W. Webb Account holders should refer to their local branch for their specific return policy. See our full refund/return policy.

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