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United Industries, Inc.
P.O. Box 58
Sterling, KS 67579
800-835-3272 • 620-278-3160
Fax 800-500-3115 • 620-278-3115
www.towerflo.com
Data presented here is the best available at the
time of publicaton. United Industries and/or its
representatives assume no liability for its use.
Form TFH-PSP-2/3:2/17
Project Specifications
Series
TFH
COMPONENT SPECIFICATION
CONTROLS
___
Standard: Three phase or single phase, Automatic backwash control panel
, UL
®
and cUL
®
Labeled, in
a NEMA 4X fiberglass enclosure including: motor starter with thermal overload and short circuit
protection; fuseless branch and control circuit protection; transformer to convert primary supply to
24 and 120 VAC control power; through-the-door disconnect; programmable relay with program of
operation, 7-year battery backup and external memory card backup; HOA switch for pump motor;
differential pressure switch (external to the enclosure) for primary backwash initiation; manual
backwash initiation pushbutton; backwash counter; and contacts for ∆P repeat closure shut-off and
alarm, common alarm (motor trip indication), remote indication of backwash operation, remote
backwash initiation, and conductivity interface. Program features 30-second time delay in ∆P
switch circuit and 100 hour “re-setting” timer (∆P switch closure or manual initiation resets timer)
for backup backwash initiation.
___
Option:
Backwash lockout between/among ____ units; to prevent simultaneous backwash of multiple
filter units; 0-60 minute adjustable lockout time delay program; field connection between/
among control panels by others.
___
Option:
Contacts for connection to BMS, additional specifications required from owner.
___ local (lights) and remote (contacts) indication of filter or backwash operating mode.
___ other (be specific) _____________________________________________________.
___
Option:
Manual backwash; ___ single-phase; ___ three-phase.
VESSEL
___
Standard:
___" diameter, carbon steel; interior tank coating of 15-18 mil two-part epoxy; exterior tank
primer of two-part epoxy after wire brush cleaning; exterior finish coating of two-part industrial
and marine grade polyurethane; Schedule 80 PVC and molded cycolac internals;
TFH-18
has
removable top head for internal access with gasketed flange rings, bolts and nuts;
TFH-24,
-30, -36
have 14" X 18" access manway; 4" X 6" handhole; 100 psi working pressure; fitted
with tank drain, influent and effluent pressure gauges, automatic air relief valve. Maximum flow
rate _______ GPM at 20 GPM per square foot filter surface area.
___
Option:
Type 304 stainless steel
___
Option:
working pressures to 150 psi.
___
Option:
Uniflex™ heat set PVC interior vessel lining, 60-90 mil finish thickness, 15 year limited vessel warranty.
MEDIA
___
Standard:
Quartzite or silica in nature, hard, not smooth, uniformity coefficient of 1.7, relative size of .45
to .55 mm, containing no more than 5% flat particles or more than 1% clay, loam dust, or other
foreign material. Media weighs 100 lbs per cubic foot.
✔
✔
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