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INTRODUCTION
The TankJet
®
78M is a hydraulically driven rotating head
with nozzles ejecting streams of liquid for internal tank
surface cleaning, sanitizing, treating, or rinsing. The
TankJet 78M model incorporates a set of bevel gears to
provide a complete 360° indexing path in both planes. The
index pattern will repeat every 25 revolutions. This unit is
specifically designed for a minimum 2.87” opening (typically
for 3” Tri-Clamp Flange connections). Like the TankJet 78 and
78D, care must be exercised during insertion and retraction
of the unit because of the nozzle swing span.
The unit is designed to be self-cleaning, such that it is
normal for it to spray water outward from joints and pin
connections. The unit may be installed on a permanent
basis and is approved for Clean-in-Place (CIP) applications.
However, it is strongly suggested the unit be regularly
removed from service and cleaned out-of-place (COP) to
remove any debris or other solids that may have collected
during operation. This can be a common occurrence in
systems where cleaning fluids are recirculated from the tank
and back through the unit.
Many types of fluids, sanitizers, detergents, and caustics
may be used through this unit to assist its cleaning
effectiveness (note caution below). The cleaning efficacy of
any unit is proportional to all the applicable variables, such
as volume, pressure, temperature, chemicals, impingement,
drainage, soils, etc.
CAUTION: If chemicals, hazardous materials, operations,
and equipment are used in conjunction with this cleaning
equipment, it is the responsibility of the user to establish
appropriate associated safety and health practices. Prior
to application, the user must consult and determine the
applicability of federal, state, local, and facility regulations.
TECHNICAL SPECIFICATIONS
TANKJET 78M MODELS:
TJ78M-__-2-175-3A
• Nozzle Orifice: 0.175"
• Operating Pressure: 25 -120 psi (1.7 – 8.3 bar)
• Flow Rate: 13 – 37 gpm (49.2 – 140.1 l/min)
*Specify inlet size of ¾" or 1".
MATERIALS:
• Stainless Steel, type 316L
• PTFE
CONSTRUCTION:
Referring to the Parts Lists on Pages 7 & 8, the TankJet 78M
comprises of three basic components: the support structure,
consisting of the housing, stator, seals, and stem; the drive,
consisting of the rotor, bearings, and rotary housing; and the
nozzle head, consisting of the hub, nozzles, and hub cap. The
unit is held together using Retaining Clips, such that it can
be quickly and easily assembled and reassembled without
the use of tools.
PRINCIPLE OF ROTATION:
The liquid enters the inlet (1) and then flows through the
slots in the stator (3), causing a swirling motion in the liquid.
This swirling liquid drives against the fins of the rotor (7),
imparting rotation to the rotor (7) and thus the rotary housing
(12). The liquid then flows through the rotary housing and
nozzle hub (16) to be distributed out each off-set nozzle.
CLEANING DIAMETER:
The cleaning and wetting distances are a function of
rotational speed and liquid pressure applied to the unit.
The TankJet 78M has an effective cleaning diameter of
25ft. (7.62m)
*
