About the Company
Well Drilling Services
Pump Services
Water
Filtration
Service
& Repairs
Planning to Construct a Well?
Water Testing
Well Construction Regulations
Frequently Asked Questions & Troubleshooting
Customer Education
Glossary of Well Terms
Photo Gallery
Contact Us
Form
Home

_____________________
2003 - 2004
All rights reserved.

Royall Pump
& Well Company
Robert W. Royall, Owner

2958 Anderson Highway
Powhatan, VA  23139

804.598.8147
phone
804.598.1291
fax

Click here to send email ...

 

WM-Series - The long-lasting pressure tanks that are the value-added choice for you and your customers

The WM-Series offers features and benefits steel tanks just can’t match. They are guaranteed to perform better and last longer. WM-Series tanks are the ideal choice for new and replacement residential installations and pressure boosting applications.
  • Residential
  • Light commercial
  • Pressure boosting

WellMate Advantages
Corrosion-proof composite construction From the high density polyethylene inner liner to the fiberglass-wound and epoxy resin-sealed outer shell, Low-Profile tanks contain no steel. So they can’t rust. Little or no maintenance Because they contain no steel, there is no paint to scratch or touch up. Longer life, greater flexibility Our unique air cell offers longer life than the bladders or diaphragms in steel tanks. And Low-Profile tanks can be installed with a wider range of pressure settings, so you can select the system pressure you want. Light weight WellMate tanks are quicker, easier and less costly to install than steel tanks.
NSF and/or FDA listed material The complete assembly meets stringent US requirements for water components. WellMate tanks are environmentally safe, 100% lead-free. They will not introduce undesirable chemicals or elements into your customers’ water.
Replaceable air cell  Easy to service in the field. Factory-backed warranty WellMate backs its pressure tanks with a complete warranty, giving your customers the confidence and peace of mind that can turn them into buyers.

WM-Series Performance Data

Model Number Capacity
gal/liter
Max. 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 Assembly Weight*
lb / kg
WM-4 14.5 / 55 100 / 700 / 7.0 4.4 / 16.5 16 / 41 26 / 66 1¾ / 4.4 1" male NPT 14.5 / 6.6
WM-6 19.8 / 75 100 / 700 / 7.0 5.9 / 22.5 16 / 41 32 / 81 1¾ / 4.4 1" male NPT 17.75 / 8.1
WM-9 29.5 / 112 100 / 700 / 7.0 8.9 / 33.5 16 / 41 44 / 112 1¾ / 4.4 1" male NPT 24.75 / 11.2
WM-12 40.3 / 153 100 / 700 / 7.0 12.1 / 45.8 16 / 41 57 / 145 1¾ / 4.4 1" male NPT 30 / 13.6
WM-14WB 47.1 / 178 125 / 862 / 8.6 14.1 / 53.5 21 / 53 41¼ / 105 2¼ / 5.7 1¼" male NPT 43 / 19.5
WM-20WB 60.0 / 227 125 /862 / 8.6 18.0 / 68.1 24 / 61 41½ / 105 2¼ / 5.7 1¼" male NPT 50 / 22.7
WM-25WB 86.7 / 328 125 / 862 / 8.6 26.0 / 98.5 24 / 61 55¼ / 140 2¼ / 5.7 1¼" male NPT 72.75 / 33.0
WM-35WB 119.7 / 453 125 / 862 / 8.6 35.9 / 135.9 24 / 61 74¼ / 189 2¼ / 5.7 1¼" male NPT 95 / 43.1
Note: Maximum external operating temperature 120°F (50°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 gauge and operating temperature of the system.