Brochure

7
Wall Hung Model for VFD Systems
Model
Number
Tank
Volume
(Gallons)
Max.
Acceptance
Factor
Dimensions
System
Connection
(NPTM)
System Drawdown (gallons)
Shipping
Weight
(lbs.)
Length
(Inches)
Width
(Inches)
Height
(Inches)
30/50 40/60 50/70
WX-102VFD 4.4 .55 15 11 12
3
⁄4 1.4 1.2 1.0 13
The Effective System Protection (ESP) sizing procedure covers modern residential water-use habits,
heavy demands and the general increase in water use that has occurred in recent years. ESP sizing is
designed to reduce system wear and lower energy consumption by keeping pump starts to a minimum.
Sizing chart is to be used in the absence of the
VFD manufacturer’s tank size recommendation.
Selections include additional buffer capacity to
minimize pressure uctuation. A larger tank is
always a system enhancement. Tank pre-charge
should be set according to drive manufacturer.
Model Specications & Sizing
ESP Sizing Table
Pump
Discharge
Rate
(Approx.
GPM)
Pumps Up To 3/4 hp & 1 Minute Run
Time
Pumps Over 3/4 hp & 2 Minute Run Time
30/50 PSIG 40/60 PSIG 50/70 PSIG 30/50 PSIG 40/60 PSIG 50/70 PSIG
5 WX-202 WX-202 WX-202 WX-205 WX-205
WX-250
7 WX-202
XL WX-203 WX-203 WX-250 WX-251 WX-251
10 WX-205 WX-205 WX-250 WX-251 WX-255 WX-302
12 WX-250 WX-250 WX-251 WX-255 WX-255 WX-350
15 WX-250 WX-251 WX-251 WX-302 WX-350 WX-350
20 WX-251 WX-255 WX-302 WX-350 WX-255 (2) WX-302 (2)
25 WX-255 WX-302 WX-350 WX-255 (2) WX-302 (2) WX-350 (2)
30 WX-302 WX-350 WX-350 WX-302 (2) WX-350 (2) WX-302 (3)
35 WX-350 WX-350 WX-255 (2) WX-350 (2) WX-350 (2) WX-350 (3)
40 WX-350 WX-255 (2) WX-302 (2) WX-350 (2) WX-302 (3)
WX-350 (3)
Variable Frequency Drive (VFD)
Sizing Table
Pump
Discharge
Rate
(Approx.
GPM)
Pump Motor Horsepower
Tank size at least
20% of pump GPM
rounded to next
size up.
1/2, 3/4 & 1 hp
Larger pumps =
Move up additional
tank size.
1 1/2 to 2 hp
7 WX-102 VFD WX-103
10 WX-102
VFD WX-103
12 WX-102
VFD WX-103
15 WX-103 WX-104
20 WX-103 WX-104
25 WX-104 WX-202
30 WX-104 WX-202
Pump Stand Models
Model
Number
Tank
Volume
(Gallons)
Max.
Acceptance
Factor
Dimensions
System
Connection
(NPTM)
System Drawdown (gallons)
Shipping
Weight
(lbs.)
Length
(Inches)
Width
(Inches)
Height
(Inches)
30/50 40/60 50/70
WX-102PS 4.4 .55 15 11 12
3
⁄4 1.4 1.2 1.0 13
WX-105PS 5.3 .80 18 11 12
3
⁄4 1.6 1.4 1.3 15
WX-110PS 7.4 .56 23 11 12
3
⁄4 2.3 2.0 1.8 18
WX-200PS 14.0 .81 22 15 16 1 4.3 3.8 3.3 29
WX-202PS 20.0 .57 30 15 16 1 6.2 5.4 4.7 35
WX-202H 20.0 .57 30 15 16 1 6.2 5.4 4.7 33
All Well-X-Trol Well Tanks feature: Stainless Steel System Connection.
Maximum Working Pressure: 150 psig.
Maximum Opera ing Temperature: 200° F.
Factory Pre-charge: 38 psig.
Includes Universal VFD Control Mounting Bracket.
Larger Tank = Fewer Cycles = Longer Tank and Pump Life.