2
PENBERTHY
MODELS LL,LM, LH, ELL, GL, GH PLASTIC MATERIAL CONSTRUCTION JET PUMPS
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
2 INTRODUCTION
2.1 Features and specifications
Penberthy molded and bar stock plastic
material jet pumps are designed to handle
corrosive fluids where their corrosion
resistance is superior to that of standard
metal construction units. For specific
recommendation on temperature/corrosion
resistance of plastic material, consult the
relevant technical data sheet or a product
proposal for the particular application.
2.2 Design ratings at maximum and minimum
operating temperatures (see Table 1)
To determine the maximum allowable working
pressure for a specific temperature within the
design limits stated in Table 1, the user should
refer to relevant technical data sheets or, when
provided, the specifically stated design limits on
a product proposal.
TABLE 1 - DESIGN RATINGS AT MAXIMUM AND MINIMUM OPERATING TEMPERATURES
Material
Bodies
PVC
100 psig [690 kPaG] at + 70°F [ 21°C]
20 psig [140 kPaG] at + 140°F [ 60°C]
Kynar
®
100 psig [690 kPaG] at + 70°F [ 21°C]
20 psig [140 kPaG] at + 275°F [135°C]
Polypropylene
100 psig [690 kPaG] at + 70°F [ 21°C]
25 psig [172 kPaG] at + 170°F [ 77°C]
1 ABOUT THE MANUAL
This manual has been prepared as an aid and
guide for personnel involved in installation or
maintenance. All instructions must be read and
understood thoroughly before attempting any
installation, operation or maintenance.
IMPORTANT
Emerson does not have any control over the
manner in which its jet pump is handled, installed
or used. Emerson cannot and will not guarantee
that a jet pump is suitable for or compatible with
the user's specific application.
WARNING
Failure to follow any instruction may cause a
malfunction of the jet pump resulting in a sudden
release of pressure, severe physical injury or
property damage.
2.3 Application data
Models LL, LM and LH are liquid operated
jet pumps for pumping liquids against low,
medium and high discharge pressures
respectively.
Models LM and ELL are liquid operated jet
pumps for exhausting gases. Model ELL is self
priming and has greater suction capacity at
vacuum.
Models GL and GH are gas operated jet pumps
for pumping gases against low and high
discharge pressures respectively.
Note:
For specific application data within
the ranges stated in Table 1, the user should
consult the product proposal for the specific
model and size jet pump, or should request the
supply of the applicable technical data sheet.
WARNING
Under no circumstances should these design
ratings or application data be exceeded.
Exceeding design ratings or application data may
cause severe physical injury or property damage.
3 INSPECTION AND PERFORMANCE
CONFIRMATION
3.1 Receiving inspection
Upon receipt of the jet pump, check all
components carefully for damage incurred in
shipping. If damage is evident or suspected,
do not attempt installation. Notify the carrier
immediately and request a damage inspection.
3.2 User's rating inspection
The user should confirm that:
1. The jet pump size and model designation
(stamped on delivery jet or label) conforms
to the description on the user's purchase
order.
2. The operating conditions described in
the purchase order agree with the actual
operating conditions at the installation site.
3. The actual operating conditions at the
installation site are within the application
data shown on the relevant technical data
sheet or product proposal referred to above.
4. The materials of construction of the
jet pump are compatible with both the
contained fluid and the surrounding
atmosphere in the specific application.
Kynar
®
is the registered trademark of Arkema
polyvinylidene fluoride (PVDF) resin.
IMPORTANT
If the size, model or performance data of the jet
pump as received does not conform with any of
the criteria above, do not proceed with installation.
Contact an authorized Penberthy distributor for
assistance.
