HP Performance Data
| Model Number |
Capacity
gal / liter |
Maximum
Operating Pressure
psi / kPa / Bar |
Drawdown 30/50 Setting**
gal / liter |
Diameter*
inch / cm |
Overall Height*
inch / cm |
Height* inlet/ outlet to floor
inch / cm |
System Connection
Top
Bottom |
Assembly Weight*
lb / kg |
Pallet
QTY. |
HP-7 / WM-HP-110 |
30 / 114 |
75 / 500 / 5.0 |
6.6 / 25.0 |
16 / 41 |
43 3/4 / 111 |
1 1/2 / 3.8 |
1/4" vent line NPT |
1 1/4" Socket |
26 / 11.8 |
9 |
HP-9 / WM-HP-150 |
40 / 151 |
75 / 500 / 5.0 |
9.0 / 34.1 |
16 / 41 |
56 1/2 / 144 |
1 1/2 / 3.8 |
1/4" vent line NPT |
1 1/4" Socket |
29 /13.2 |
9 |
HP-8SQ /
WM-HP-150SQ |
40 / 151 |
75 / 500 / 5.0 |
8.0 / 30.3 |
21 / 53 |
35 1/4 / 90 |
2 / 5.1 |
1/4" vent line NPT |
1 1/4" Socket |
34 /15.4 |
4 |
HP-18 / WM-HP-300 |
80 / 303 |
75 / 500 / 5.0 |
17.8 / 67.4 |
21 / 53 |
62 / 157 |
2 / 5.1 |
1/4" vent line NPT |
1 1/4" Socket |
44 /20.0 |
N/A |
HP-26 / WM-HP-450 |
120 / 454 |
75 / 500 / 5.0 |
25.5 / 96.5 |
24 / 61 |
72 1/2 / 184 |
2 / 5.1 |
1/4" vent line NPT |
1 1/4" Socket |
64 / 29.0 |
N/A |
Note: Maximum external operating temperature 120°F (49°C).
Maximum internal operating temperature 100°F (38°C).
Minimum operating temperature 40°F (4°C).
* Diameter, height and weight may vary slightly without notice.
** In keeping with current industry standards, drawdown factors are based on Boyle's law. Actual
drawdowns will vary depending upon system variables, including the accuracy and operation of the
pressure switch and guage and operating temperature of the system.
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 |
 SidePort “SP” Series — Made of all NSF/ANSI-61 certified material. “SP” tanks contain no harmful traces of metal (as with steel tanks) that could pass into your water. Our tanks are environmentally safe and 100% lead free. Designed as a direct replacement for galvanized steel and Epoxy-lined Steel Tanks, the SidePort “SP” series offers features and benefits that save time and money.
Download Brochure
- Corrosion-proof composite construction
- One piece, seamless inner shell molded of premium high-density polyethylene
- Outer shell is a composite of continuous fiberglass strands sealed with high-grade epoxy resin
- Sturdy molded polymeric base is corrosion and impact proof
- Greater Drawdown – curved bottom dome design increases drawdown and maximizes contact time
- UV Protection – All SP tanks come with additional urethane coating for years of added protection
- Light Weight – minimizes labor cost; no need for heavy equipment
- Agency Approval: The entire range of WellMate Residential Captive Air tanks are NSF/ANSI-61 certified through the
Water Quality Association Gold Seal Program
- No rust or corrosion means no maintenance
- Long lasting durable finish
 |
| • sulfer / gas |
|
SidePort Series
| Model Number |
Capacity
gal / liter |
Drawdown 30/50 Setting** gal / liter |
Diameter*
inch / cm |
Overall Height*
inch / cm |
Height* inlet/
outlet to floor
inch / cm |
Height SidePort
to floor inch / cm |
Assembly Weight*
lb / kg |
Pallet
QTY. |
SP-7 |
30 / 114 |
7 / 26 |
16 / 41 |
43 3/4 / 111 |
1 1/2 / 3.8 |
14 / 35.6 |
26 / 11.8 |
9 |
SP-9 |
40 / 151 |
9 / 34 |
16 / 41 |
56 1/2 / 144 |
1 1/2 / 3.8 |
15.5 / 39.4 |
29 / 13.2 |
9 |
SP-9SQ |
47 / 178 |
9 / 34 |
21 / 53 |
41 1/4 / 105 |
2 / 5.1 |
16.9 / 42.9 |
43 / 19.5 |
4 |
SP-18 |
80 / 303 |
18 / 67 |
21 / 53 |
62 / 157 |
2 / 5.1 |
18.3 / 46.5 |
44 / 20.0 |
1 |
SP-26 |
120 / 454 |
26 / 98 |
24 / 61 |
72 1/2 / 184 |
2 / 5.1 |
20.2 / 51.3 |
64 / 29.0 |
1 |
| SP-35 |
205 / 776 |
35 / 132 |
36 / 91 |
73 / 185 |
7 / 17.8 |
31.5 / 80.0 |
160 / 72.6 |
1 |
| SP-50 |
264 / 999 |
50 / 189 |
36 / 91 |
82 / 208 |
7 / 17.8 |
31.5 / 80.0 |
292 / 132.6 |
1 |
Note: Maximum external operating temperature 120°F (49°C). Maximum internal operating temperature 100°F (38°C). Minimum operating temperature 40°F (4°C).
* Diameter, height and weight may vary slightly without notice.
** In keeping with current industry standards, drawdown factors are based on Boyle's law. Actual drawdowns will vary depending upon system variables, including the accuracy and operation of the pressure switch and guage and operating temperature of the system.
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Hydropneumatic – “HP” Series — Designed for applications where sulfur, iron, methane gases and hypochloride environments are an issue. These high performance tanks can be used for aggressive water, or as an open system where air is introduced to oxidize and aerate.
