Page 1
For Commercial Applications
ES-WQ-PWM
Job Name
Job Location
Engineer
Approval
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Series PWM
Commercial Micro Z™ Filter
Systems
Connection Sizes: 1" to 3" (25 - 80 mm)
Flow Rates: Up to 106 gpm (401 lpm)
Watts Pure Water Series PWM Micro Z™ filters are highly
effective backwashing media filtration systems for the removal
of sediment and suspended solids from water.
They are suitable for commercial applications with flow rates up
to 106 gpm (401 lpm) with media bed sizes ranging from 1 to
20 cubic feet in size. If higher flow rates are required, multiple
units can be installed in parallel. The media bed is cleaned of
captured sediment by periodic backwashing and flushing. This
cleaning cycle is time clock demand initiated and can be programmed to occur at any time that is convenient for the user.
All steps of the cleaning cycle as well as returning to service
are fully automatic and do not require manual actuation.
Watts Pure Water Series PWM sediment filters are designed for
point of use or point of entry applications where filtered water
is required. Micro Z™ is a naturally occurring form of zeolite
that offers superior filtration characteristics over and above
sand, anthracite and garnet products currently in use today.
The key to Micro Z™’s performance is its hydrophilic properties combined with a jagged external surface texture. This
gives Micro Z™ a sediment holding capacity of 2.8 times that
of sand, which reduces backwash waste water volumes and
provides higher service flow rates which reduces over all system
size and cost. Micro Z™ has a 3-5 micron nominal particle size
removal rating versus 15-30 micron with other conventional
back-washable medias.
Reverse osmosis pretreatment, micro and ultra filtration system
pretreatment, cartridge filtration pretreatment, sediment reduction in city and rural water, municipal water filtration, as well as
general turbidity reduction are all common applications for the
Watts Pure Water Series PWM Micro Z™ filter systems.
Filtered water is a cleaner supply water for boilers, solenoid
valves, pumps, faucets, aerator screens, reverse osmosis
systems, micro and ultra filtration systems, pools, aquariums,
washing, and rinsing processes that reduces down time and
costly repairs.
Contractor
Approval
Contractor’s P.O. No.
Representative
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PURE WATER
Series
PWM10
Features
• WQA Certified fully automatic time clock initiated control valve
• Sophisticated digital electronic controls that store operating
history that can be accessed by the user
• Fully adjustable backwash and flush cycles
• Durable brass bodied control valve for years of service
• Dry contact lock out switch for remote interface is standard
• NSF Certified high capacity Micro Z™ filter media
• Highly corrosion resistant NSF Certified fiberglass tanks
• Durable polypropylene lower distribution system
Standards
Control Valve- WQA Certified to NSF/ANSI Std. 61
Micro Z™ Filter Media- NSF Certified to ANSI Std. 61
Mineral Tank- NSF Certified to ANSI Std. 44 or 61
Series
PWM15
Series
PWM20
Series
PWM30
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system.
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 without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Page 2
Specifications
E
D
Watts Pure Water Series PWM Micro Z™ filter system shall
be installed on the building’s main water line just after it enters
the building. The installation point shall be after any backflow
prevention or pressure regulating valves. Other installation
options are to install a system just before the plumbing equipment needing the protection of filtered water. In installations
where the dedicated cold water make up to a water heater is
the installation point, a backflow preventer and a thermal expansion tank must be installed as well. The system shall be installed
with a bypass valve to allow for the shut down and removal of
the unit without interrupting the water supply to the building.
The filter system shall be a backwashing granular media bed
type with digital programmable time clock initiated backwash,
high-capacity alumino-silicate filter media rated for 3-5 nominal
particle size removal, and all components necessary for proper
operation. Electrical requirements are 120 volt 60 hertz. A local
drain is required to accept drain water from the system. The
feed water pressure must not fall below 30psi (207 kPa) or
exceed 125psi (8.7 bar). Water temperature must not fall below
34°F or exceed 110°F (1 - 43°C).
The system shall provide water that has been filtered to a nominal micron rating of 3-5 micron.
Dimensions - Weights
Feed Water Guidelines
pH .................... 6 to 8.5
Water Pressure .......... 30psi to 125psi
(207 kPa to 8.7 bar)
Temperature ............ 34 - 110°F (1 - 43°C)
Oil and H2S ............. None Allowed
* For all other guideline information please contact your Watts representative.
Series PWM10
MODEL NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
C
C
FRONT
E D
E D
SIDE
B
A
B
A
PWM10111A10 501/8 1273 523/8 1330 561/2 1435 111/2 292 123/4 324 118 54
PWM10111B10 56
PWM10111C10 54
Series PWM20
1
/4 1429 587/16 1484 625/8 1591 12 305 123/4
5
/8 1387 5613/16 1443 61 1549 13 330 123/4 324 173 79
E
D
324 147 67
Series PWM15
MODEL NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
E
E
C
C
FRONT
FRONT SIDE
D
D
B
B
A
A
SIDE
PWM15121D10 6615/16 1699 677/8 1724 733/8 1864 1415/16 378 141/8 358 278 366
PWM15121E10 663/8 1686 671/4 1708 723/4 1848 1515/16 405 161/8 409 667 303
PWM15121G10 70 1778 71 1803 767/16 1941 211/8 536 211/8 536 1015 461
Series PWM30
E
E D
D
C
C
B A
AB
FRONT SIDE
MODEL NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
PWM20141H10 817/8 2079 817/8 2079 871/2 2222 247/16 620 241/8 612 1015 461
PWM20141I10
833/8 2118 833/8 2118 89 2260 301/8 765 301/8 765 1852 842
C
C
AB
AB
FRONT SIDE
MODEL NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
PWM30151J10 871/4 2216 871/4 2216 100 2540 361/8
917
361/8 917 2525 1148
Page 3
Specifications
MINERAL TANK FLOW RATES FOR SERVICE AND BACKWASH
TANK TANK SIZE MICRO Z™ SERVICE GPM BACKWASH GPM
MODEL NO. SIZE Ft
2
Ft3 10 GPM Ft
2
15 GPM Ft
2
20 GPM Ft2
PWM10111A10 9" x 48" .44 1.0 4.4 6.6 8.8 7.0 GPM
PWM10111B10 10" x 54" .54 1.5 5.4 8.1 10.8 7.0 GPM
PWM10111C10 12" x 52" .78 2.0 7.8 11.7 15.6 10 GPM
PWM15121D10 14" x 65" 1.07 3.0 10.7 16.0 21.4 20 GPM
PWM15121E10 16" x 65" 1.39 4.0 13.9 20.8 27.8 20 GPM
PWM15121G10 21" x 62" 2.41 7.0 24.1 36.1 48.2 40 GPM
PWM20141H10 24" x 72" 3.14 10 31.4 47.1 62.8 50 GPM
PWM20141I10 30" x 72" 4.91 15 49.1 73.6 98.2 85 GPM
PWM30151J10 36" x 72" 7.07 20 70.7 106.1 141.4 100 GPM
Ordering Information
SPACE
MODEL NO. DESCRIPTION PIPE SIZE REQUIRED WEIGHT
W x D x H LBS KGS
PWM10111A10 1 Cubic Foot Micro Z™ filter with Auto Backwash 1" 10" x 11" x 60" 118 54
PWM10111B10 1.5 Cubic Foot Micro Z™ filter with Auto Backwash 1" 11" x 12" x 65" 147 67
PWM10111C10 2 Cubic Foot Micro Z™ filter with Auto Backwash 1" 13" x 14" x 65" 173 79
PWM15121D10 3 Cubic Foot Micro Z™ filter with Auto Backwash 1
PWM15121E10 4 Cubic Foot Micro Z™ filter with Auto Backwash 1
PWM15121G10 7 Cubic Foot Micro Z™ filter with Auto Backwash 1
PWM20141H10 10 Cubic Foot Micro Z™ filter with Auto Backwash 2" 27" x 27" x 95" 1015 461
PWM20141I10 15 Cubic Foot Micro Z™ filter with Auto Backwash 2" 33" x 33" x 95" 1852 842
PWM30151J10 20 Cubic Foot Micro Z™ filter with Auto Backwash 3" 40" x 48" x 114" 2525 1148
1
⁄2" 15" x 16" x 75" 278 126
1
⁄2" 17" x 18" x 75" 366 166
1
⁄2" 23" x 24" x 84" 667 303
Notes: Flow rates, dimensions, and capacities are per tank. Pipe size, tank size, and space requirements are in inches. 20 gpm per square foot flow rates are for intermittent
peak flows only and should not be used as continuous flows.
A Watts Water Technologies Company
USA: North Andover, MA • Tel. (800) 224-1299 • www.watts.com
Canada: Burlington, ON • Tel. (888) 208-8927 • www.wattscanada.ca
ES-WQ-PWM 1122 © 2011 Watts
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