INSTALLATION AND MAINTENANCE
DCF 800 TWIN
DOCUMENT #
47556
SPECIFICATIONS
Piping Connections:
•
Inlet and Outlet: 2 inch NPTE, or option ordered
•
Purge: 1.5 inch NPTE, or option ordered
Filter Element Type:
Slotted, Defined Pore, or Perforated
Filter Body Volume:
4.0 US gallons (14.8 liters)
Contaminant Purge Volume:
25 US ounces (0.74 liters)
Design Pressure
: Maximum Pressure:
150 PSIG (1035 kPa)
Minimum Operation Pressure:
30 PSIG (207 kPa)
Maximum Temperature:
Defined by the elastomer and cleaning disc selected
Maximum Differential Pressure on filter element:
Slotted or Perforated Element: 110 PSID (760 kPa)
Defined Pore Elements: 50 PSID (345 kPa).
INSTALLATION INSTRUCTIONS
1.
Secure the filter unit legs to a foundation.
2.
Attach the inlet and outlet connections to the interconnecting
piping (customer supplied). To properly support the filter unit,
mount the filter in a vertical position. Take care to avoid
excessive nozzle loading at the filter connections. Consult
your pump manufacturer’s installation guide for minimum pipe
run length between the pump outlet and the inlet of the filter
unit. NOTE: Isolation/block valves (supplied by others) are
required on all process connections of the filter unit so the
filter can be isolated from the process liquid in the event that
service is required. Pressure gauges (supplied by others) are
also recommended before and after the filter.
3.
Connect the drain line (customer supplied) to the filter
unit’s purge valve. To avoid restricting purge flow the drain
line should be: 1) the same or larger diameter as the
purge valve size, 2) as short as possible, and 3) at or
lower than the height of the purge valve.
4.
See additional instructions for air and electrical installation
instructions.
CHECKLIST
Complete this checklist before operating the system.
Verify that all process connections are secure and free of -
leaks.
-Element must be clean and free of damage.
-Top and bottom element seals must be properly installed.
-Proper element type must be used, as process requires.
-Confirm that the gasket sealing the lid to the filter
housing is in good condition and properly installed.
Disassembly of the unit may be required to verify above.
Check Star Packing Wheel and tighten as required.
Urethane seal requires only finger tight. Teflon requires a
tight fit with continued tightening adjustments as needed
Verify that all lid bolts are tight.
Verify that cleaning disc can be activated manually and
automatically if so equipped.
Verify that purge valve is operable and normally in the
closed position for operation and start-up.
Check that the purge line is directed in a suitable fashion
to accept waste when purged.
OPERATION INSTRUCTIONS
1.
The DCF-800 cleaning disc should stroke the element
clean to keep the differential pressure between the inlet
and outlet of the filter below 15 PSID. Stroking too
frequently will shorten the life of all wear components.
Note: The burst strength of the filter elements is 110 PSID
differential pressures for slotted and perforated elements,
and 50 PSID for defined pore.
2.
The filter unit is supplied with a valve used to purge the
contaminants from the housing. This valve should be
opened before the collected contaminants exceed the
purge volume and causes a differential pressure increase.
3.
If filter element is removed from unit, avoid high-
pressure washing from the outside of the element.
This may force contaminants into the filter media and
cause permanent blockage and/or element damage.
4.
Always pressurize the unit slowly on start-up and
watch for any leakage.
5.
The unit is equipped with a plug in the lid for
placement of overpressure vents, for use as an air
release and/or connect for fluid filling of vessel.
6.
Monitoring of the differential pressure between inlet
and outlet pressures should be used to determine
stroking and purging rates. Normal operation should
exhibit low differential pressure that is maintained
throughout.
WARNING!
MAXIMUM WORKING PRESSURE IS 150 PSIG (1035 kPa).
CAUTION: PNEUMATIC CYLINDERS MAY MOVE FAST AND IN
AN UNEXPECTED MANNER—KEEP AREA DIRECTLY ABOVE
THEM CLEAR.
DO NOT STROKE CYLINDER WHEN BLOCK VALVES ARE
CLOSED.
THIS FILTER UNIT MAY BE UNDER PRESSURE – EXTREME
CARE MUST BE TAKEN WHEN INSPECTING OR SERVICING
THE EQUIPMENT.
