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NTA Series Expansion Tanks (ASME)

The NTA Series are manufactured to ASME specifications. These vessels are designed using a heavy-duty fixed butyl diaphragm, and are offered in sizes ranging from 8 to 211 gallons.
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Submittal-Tank (ASME), NTA Series
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System Connection
3/4" | 1" | 1 1/2" |
Accept Factor
0.34 | 0.35 | 0.38 | 0.40 | 0.46 | 0.48 | 0.53 | 0.58 | 0.64 | 0.66 | 0.75 |
Accept Volume
6.3 gal | 8.8 gal | 20.2 gal | 28 gal | 36 gal | 48.5 gal | 56.5 gal | 65 gal | 73 gal | 93 gal | 113.5 gal | 128 gal | 171 gal |
Tank Vol.
7.8 gal | 10.9 gal | 25 gal | 35 gal | 45 gal | 60 gal | 70 gal | 80 gal | 90 gal | 115 gal | 140 gal | 158 gal | 211 gal |
Item # Model Tank Vol. Accept Volume Accept Factor System Connection Shipping Weight
117-0015 NTA 15 7.8 gal 6.3 gal 0.64 3/4" 42 lb
117-0020 NTA 20 10.9 gal 8.8 gal 0.46 3/4" 52 lb
117-0062 NTA 60 35 gal 28 gal 0.34 1" 97 lb
117-101 NTA 100 60 gal 48.5 gal 0.40 1" 175 lb
117-121 NTA 120 70 gal 56.5 gal 0.75 1 1/2" 259 lb
117-145 NTA 144 80 gal 65 gal 0.66 1 1/2" 268 lb
117-181 NTA 180 90 gal 73 gal 0.58 1 1/2" 283 lb
117-201 NTA 200 115 gal 93 gal 0.46 1 1/2" 325 lb
117-281 NTA 240 140 gal 113.5 gal 0.38 1 1/2" 362 lb
117-403 NTA 40 25 gal 20.2 gal 0.48 1" 84 lb
117-421 NTA 260 158 gal 128 gal 0.35 1 1/2" 591 lb
117-431 NTA 280 211 gal 171 gal 0.40 1 1/2" 752 lb
117-81 NTA 80 45 gal 36 gal 0.53 1" 148 lb
The NTA Series are manufactured to ASME specifications. These vessels are designed using a heavy-duty fixed butyl diaphragm, and are offered in sizes ranging from 8 to 211 gallons.