16
Instruction Manual
SECTION 6 - INSTALLATION & OPERATION (PRESSURE SENSING SYSTEM)
The Diaphragm Rupture Detection System is
usually shipped already mounted to the pump.
Installation, therefore, is usually only a matter of
piping in the pump, and wiring the pressure switch
if one is provided.
6.1 UNPACKING
Units are shipped Free on Board (FOB) factory
and the title passes to the customer when the
carrier signs for receipt of the unit. In the event
that damages occur during shipment, it is the
responsibility of the customer to notify the
carrier immediately and to le a damage claim.
Carefully examine the shipping crate upon receipt
from the carrier to be sure there is no obvious
damage to the contents. Open the crate carefully so
accessory items fastened to the inside of the crate
will not be damaged or lost. Examine all material
inside crate and check against packing list to be
sure that all items are accounted for and intact.
6.2 SAFETY PRECAUTIONS
When installing, operating, and maintaining a
Critical Service pump with Diaphragm Rupture
Detection, keep safety considerations foremost.
Use proper tools, protective clothing, and eye
protection when working on the equipment
and install the equipment with a view toward
ensuring safe operation. Follow the instructions
in this manual and take additional safety
measures appropriate to the liquid being pumped.
Be extremely careful in the presence of hazardous
substances (e.g., corrosives, toxics, solvents,
acids, caustics, ammables etc.).
6.3 DISASSEMBLY / ASSEMBLY
(REFER TO DRAWING 1029026000,
FIGURE 2, SHEET 1 & 2)
LOOSENING ANY HYDRAULIC
CONNECTIONS OR OPENING
ANY VALVES COULD CAUSE PROCESS LIQUID TO BE
RELEASED UNDER PRESSURE. CAREFULLY DISCONNECT
PUMP FROM ALL ELECTRICAL AND HYDRAULIC SERVICE
BEFORE PERFORMING ANY MAINTENANCE.
1. After shutting down the pump and relieving
system pressure, disconnect all hydraulic
connections.
2. Drain the oil from the catchall.
3. Disassemble the diaphragm head from the
pump body following the instructions in
Section 4.
4. Remove diaphragms (670) and discard along
with four leak detection rings (8080 and
(8081), and leak detection ring spacer (8082).
Items (8080, 8081, and 8082) can be reused
if not damaged by process fluid. Refer to
Figure 2, Sheet 2, Detail C as needed.
IF THE PROCESS FLUID IS
HYDROGEN PEROXIDE OR
ANOTHER STRONG OXIDIZING AGENT, MINERAL OIL SHOULD
NOT BE USED BETWEEN THE DIAPHRAGMS. SUBSTITUTE
WITH A CHLOROTRIFLUOROETHYLENE POLY-MER FLUID
SUCH AS FLOUROLUBE.
5. Clean all sealing surfaces and install new
diaphragms (670), leak detection ring A (8080),
leak detection ring B (8081), and leak detection
ring spacer (8082), leak detection ring A (8080),
leak detection ring B (8081) removed previously
(Figure 2, Sheet 1, Detail C). Apply a small
amount of mineral oil between the diaphragms.
Stacked diaphragms and rings may be aligned
using the three small holes as a guide.
Make sure diaphragms (670) t into pocket on
diaphragm head (700).
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