Submittal Sheet

Series DETA
ASME — Pressurized Expansion
Tanks for Potable Hot Water
Models DETA 5 to DETA 210
Watts Model DETA Tanks are ASME fixed bladder type pre-
charged expansion tanks for commercial and industrial fresh
potable hot water applications. They are designed to accept
the expanded volume of hot water keeping the system pressure
below the relief valve setting. The water is contained in a butyl
bladder.
Features
•ASMESectionVIIIConstruction
•FixedButylBladder(FDAapproved)
•StainlessSteelSystemConnection
•Prechargedto40psi(FieldAdjustable)
Construction
Shell:Carbonsteel
SystemConnection:Stainlesssteel
Bladder:Butyl(FDAapproved)
Primepaintedexterior
Pressure — Temperature
Maximum Design Pressure:
DETA5throughDETA210:150psi(10bar)
Prechargedto40psi(275kPa)
Maximum Design Temperature:240°F(115°C)
Specifications
FurnishandinstallasshownonplansaWattsModelDETA____
gallon____"diameterx____"(high)pre-chargedsteelthermal
expansion tank with a fixed butyl bladder. The tank shall have
atopNPTstainlesssteelsystemconnectionanda.302"-32
chargingvalveconnection(standardtirevalve)tofacilitatethe
on-site charging of the tank to meet system requirements. The
tankmustbeconstructedinaccordancewithSectionVIIIofthe
ASMEBoilerandPressureVesselCode.
MODEL
NUMBER
TANK VOLUME
GALLONS
ACCEPTANCE
VOLUME
GALLONS
TAGGING
INFORMATION
QUANTITY
DETA 5 3.5 2.3
DETA 12 5 3.3
DETA 20 8 5.3
DETA 30 15 10.0
DETA 42 22 14.5
DETA 60 26 17.5
DETA 80 35 23.5
DETA 100 45 30
DETA 125 60 40
DETA 160 70 47
DETA 180 80 53
DETA 210 90 60
Schedule
For Potable Hot Water Applications
ES-DETA
Job Name
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 Contractor
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Job Location
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Approval
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Engineer
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 Contractor’sP.O.No.
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Approval
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Representative
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LEAD FREE
*
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
The information contained herein is not intended to replace the
full product installation and safety information available or the
experience of a trained product installer. You are required to
thoroughly read all installation instructions and product safety
information before beginning the installation of this product.
NOTICE