Watts Mueller Steam Specialty 791 Instalación, Operación Y Mantenimiento

Installation, Operation
and Maintenance
Duplex Strainers
¾" - 6"
WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.
NOTICE
For information on installation and operation of the Sensor
Control Module used with SM model duplex strainers, please
reference IOM-MS-SCM.
Receiving, Handling and Inspection
1. Unpack and inspect strainer for damage that may have
occurred during shipping. Any damage should be reported
to the carrier immediately. Store the container in a dry, clean
area until the strainer is installed.
2. Remove strainer covers and inspect for any foreign matter
that could be washed downstream when the strainer is put
into service. The strainer has been packed with a
preservative coating on the inside surfaces. This should
be removed if there is a possibility of contamination of the
piping system. See Disassembly Instructions for Service and
Maintenance in this manual.
3. Carefully check the pressure and temperature ratings on the
strainer body or nameplate to be sure that they are correct
for the intended application.
Installation Instructions
1. Place the strainer in the line so that the liquid enters the side
marked INLET. DO NOT LIFT the strainer by the knobs or
gear operator. Use slings around body or flanges for lifting.
On sizes 3" or smaller, be sure there are pipe supports close
to the inlet and outlet sides of the strainer. Sizes 4" and
larger must be supported on a concrete or steel pad.
2. Allow enough room above the strainer for easy basket
removal. See TABLE A.
3. When connecting flanged strainers to the line, be sure that
the flanges are the same: flat face to flat face or raised face
to raised face. Flat face flanges require full-face gaskets. The
specified face-to-face dimension of the strainer is an approx­
imate one due to machining tolerances. Allow adjustment in
prefabricated piping or request certified dimensions.
4. Check to see that flange gaskets are properly positioned
before tightening bolts. Tighten bolts in sequence.
5. We recommend the installation of flexible hoses on the pet
cocks on the basket covers if service temperatures greater
that 120°F are expected.
Mueller Steam Specialty product specifications in U.S. customary units and metric are approximate and are provided for reference
only. For precise measurements, please contact Mueller Steam Specialty Technical Service. Mueller Steam Specialty 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 Mueller Steam Specialty products previously or subsequently sold.
Start Up Instructions
1. Turn handle to the center, directly over the INLET. Open pet
cocks on both basket covers. SLOWLY fill the chambers
with line fluid. Close pet cocks when fluid starts to flow from
them.
2. Allow system to gradually reach normal operating
pressure and temperature. Check carefully for leaks at this
time. Be sure that all basket cover knobs and bolts are
securely tightened. If there are any leaks, follow the
procedures in this manual under Disassembly Instructions
For Service and Maintenance.
3. Rotate handle until it is directly over one of the chambers.
The handle is always over the chamber in service. (On
units with gear operators, turn to position 1 or 2). DO NOT
leave the handle in the center position or both baskets will
become clogged, requiring the system to be shut down for
cleaning. See Changeover and Cleaning Instructions in this
manual for switching the flow from one to the other.
WARNING
!
Do not use with water that is microbiologically unsafe or of
unknown quality without adequate disinfection before or after the
system.
IOM-MS-Duplex-S