4 Installation
9
Read the instructions carefully and pay special attention to the warnings! Always check the tank cleaning machine before
operation.
4.2 Installation
Step 1
Always read the technical data thoroughly.
(See chapter 7 Technical Data)
Step 2
Assembly
Every Alfa Laval Gamajet is operationally tested before shipment and is ready to run after unpacking.
No assembly is required
prior to use.
The Alfa Laval Gamajet has been configured to meet the operating conditions (at the Alfa Laval Gamajet, not at the
pump) given to us, e.g. pressure, flow, temperature, cycle time, chemical adders, etc.
Note:
Any change to the original operating conditions will affect the Alfa Laval Gamajet accordingly
Warning: Do not force Tee & Nozzle Housing, Pos. 4 & 5 to rotate. Doing so may damage the internal components.
Step 3
Inlet Connections
The standard inlet connection for the Alfa Laval GJ 10 is a 1-
1/2” NPT female or 1-½” BSP. Others inlets are available. It is
recommended that when using the pipe thread the mating male thread should be wrapped with PTFE pipe joint tape prior to
mounting. This will minimize any chance of leakage and will make subsequent removal much easier.
Step 4
Mounting
Before mounting the Alfa Laval GJ 10, make sure the supply line has been adequately flushed. It can be mounted on a rigid
1-
1/2” pipe using a pipe wrench. In most applications, the Alfa Laval GJ 10 will be mounted with the inlet connection pointing
up; however, the Alfa Laval GJ 10 will function at any orientation. In the cleaning of underground storage tanks (USTs), Alfa
Laval Gamajet recommends the use of its UST Lance or Hose Insertion Assembly. Either device will ensure a proper
insertion depth, sealing of the riser pipe. Also, the UST Lance includes a lanyard loop that provides a means to attach a
safety line between the Alfa Laval GJ 10 UST Lance and the safety loop on the Alfa Laval Gamajet.
We do not recommend attaching the machine to a hose while in the inverted or horizontal orientation. This form of mounting
is not rigid and, thus, will not maintain the Alfa Laval GJ 10
’s position should the unit become unbalanced due to clogging of
the nozzles.
Warning: When attaching the Alfa Laval GJ 10 onto the supply pipe, ALWAYS apply the wrench to the Inlet Collar (9)
at the top/inlet of the unit. Never use a wrench on Stem (3), Tee Housing (4), or Tee Housing Cap (13) to
tighten the unit onto the pipe. Doing so risks internally damaging the machine. Refer to Drawing 22 for an
illustration.
Step 5
Location inside Tank
Generally, a single Alfa Laval Gamajet machine will be positioned in the approximate center of the vessel in order to equalize
the cleaning radius in all directions. Some vessels, however, may have specific cleaning problems such as coils or heavy
deposits such as the liquid level line (bathtub ring). In these situations the Alfa Laval GJ 10 should be located closer to the
difficult area for the best cleaning results.
Tanks with internal mechanisms or structures such as an agitator shaft, impellers or baffles will require careful positioning to
minimize
the “shadow” on areas which do not receive direct jet impact. Sometimes, more than one machine, or, more than
one placement of a single machine, may be necessary to avoid shadow problems or “striping.”
Содержание GJ 10
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