Emerson Penberthy LL, Penberthy ELL, Penberthy LH, Penberthy LM, Penberthy GH Installation, Operation And Maintenance Instructions

PENBERTHY MODELS LL,LM, LH, ELL, GL, GH PLASTIC MATERIAL CONSTRUCTION JET PUMPS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

Before installation, these instructions must be read carefully and understood

PRODUCT WARRANTY

Emerson warrants its Penberthy products
as designed and manufactured to be free
of defects in the material and workmanship
for a period of one year after the date of
installation or eighteen months after the date
of manufacture, whichever is earliest. Emerson
will, at its option, replace or repair any products
which fail during the warranty period due to

TABLE OF CONTENTS

defective material or workmanship.

Product warranty ................................................ 1

1 About the manual..................................... 2

2 Introduction ............................................. 2

2.1 Features and specifications ........................ 2

2.2 Design ratings at max. and min.

operatingtemperatures .............................. 2

2.3 Application data ........................................... 2

3 Inspection and performance

confirmation ............................................ 2

3.1 Receiving inspection .................................... 2

3.2 User's rating inspection .............................. 2

4 Installation ............................................... 3

4.1 Special handling of plastic material jet

pump ............................................................. 3

4.2 Effect of related piping and precautions .... 3

5 Operation ................................................. 4

5.1 Pre-operational check ................................. 4

5.2 Operating ...................................................... 4

6 Maintenance ............................................ 4

6.1 Preventative maintenance ........................... 4

6.2 Troubleshooting ........................................... 4

7 Removal ................................................... 5

8 Disposal at end of useful life ................... 5

9 Telephone assistance .............................. 5

10 Exploded parts drawing ........................... 6

Tables and figures

Table 1 -

Table 2 - Troubleshooting ................................ 4

Figure 1 - Typical installation schematic

Figure 2 - Typical installation schematic gas

Figure 3 - Barstock PVC one-piece section

Figure 4 - Barstock exploded cut-away ............ 6

Figure 5 - Welded polypropylene section

Figure 6 - Molded exploded cut-away ............... 6

Design ratings

operatingtemperatures ................... 2

liquidoperated pumping liquids ...... 4

operated pumping gases ................. 4

cut-away ........................................... 6

cut-away ............................................ 6

at max. and min.

Prior to submitting any claim for warranty
service, the owner must submit proof of
purchase to Emerson and obtain written
authorization to return the product. Thereafter,
the product shall be returned to Emerson with
freight prepaid.

This warranty shall not apply if the product has
been disassembled, tampered with, repaired
or otherwise altered outside of the Emerson
factory, or if it has been subject to misuse,
neglect or accident.

The responsibility of Emerson hereunder
is limited to repairing or replacing the
product at its expense. Emerson shall not be
liable for loss, damage or expenses
directly or indirectly to the installation or use
of its products, or from any other cause or
for consequential damages. It is expressly
understood that Emerson is not responsible
for damage or injury caused to other products,
buildings, personnel or property, by reason of
the installation or use of its products.

This is Emerson's sole warranty and in lieu of
all other warranties, expressed or implied which
are hereby excluded, including in particular all
warranties of merchantability or fitness for a
particular purpose.

This document and the warranty contained
herein may not be modified and no other
warranty, expressed or implied, shall be made
by or on behalf of Emerson unless made in
writing and signed by the company's general
manager or director of engineering.

related

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PENBERTHY MODELS LL,LM, LH, ELL, GL, GH PLASTIC MATERIAL CONSTRUCTION JET PUMPS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

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 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.

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.

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.

TABLE 1 - DESIGN RATINGS AT MAXIMUM AND MINIMUM OPERATING TEMPERATURES

Material Bodies

PVC

®

Kynar

Polypropylene

100 psig [690 kPaG] at + 70°F [ 21°C]
20 psig [140 kPaG] at + 140°F [ 60°C]
100 psig [690 kPaG] at + 70°F [ 21°C]
20 psig [140 kPaG] at + 275°F [135°C]
100 psig [690 kPaG] at + 70°F [ 21°C]
25 psig [172 kPaG] at + 170°F [ 77°C]

Kynar® is the registered trademark of Arkema
polyvinylidene fluoride (PVDF) resin.

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PENBERTHY MODELS LL,LM, LH, ELL, GL, GH PLASTIC MATERIAL CONSTRUCTION JET PUMPS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

4 INSTALLATION

Installation should only be undertaken by
qualified personnel who are familiar with
equipment of this type. They should have read
and understood all of the instructions in this
manual. The user should refer to the relevant
technical data sheet or the product proposal to
obtain dimensional information for the specific
size and model of jet pump.

Check Figures 1-6 for the location of operating,
suction and discharge connections to insure
correct hook up.

4.1 Special handling of plastic material
jetpump

1. Use PTFE tape on all pipe connections
to reduce friction, improve sealing and
facilitate disassembly.

2. All threaded connections of jet pumps made
of polypropylene material must be back
welded or leaks may develop in time.

3. Connecting piping must be made of the
same material as the jet pump if the unit
will be exposed to changes in temperature.
Changes in ambient or fluid temperature
on connections of dissimilar materials can
cause loosening of joints resulting in leaks,
or tightening of joints resulting in rupture.
This is caused by the difference in thermal
expansion of the materials.

Examples of coefficients of thermal

expansion are as follows:

Kynar

®

…………………. 8x10
Polypropylene…………. 5x10
PVC…………………….. 3x10
Stainless steel………… 6x10

-5

in/in/°F

-5

-5

in/in/°F

-5

in/in/°F

in/in/°F

4. Thread the jet pump into piping per

instructions below to avoid upsetting
straight threaded joints, if any, and to avoid
damage to the plastic. Avoid over tightening.

a. Suction connection

Use ejector discharge for leverage when

connecting to suction.

b. Operating connection

Hold hex or flats on nozzle, if any, with

a wrench when attaching piping to
operating connection. If hex or flats are
not provided, then use existing suction
connection piping or temporarily thread
a short piece of pipe into the suction
connection to hold the jet pump.

c. Discharge connection

Hold flats, if any, with a wrench near the

discharge connection when attaching
piping to the discharge connection. If
flats are not provided, then use existing
suction connection piping, or a strap
wrench, or temporarily thread a short
piece of pipe into the suction connection
to hold the jet pump.

4.2 Effect of related piping and precautions

1. Plastic jet pumps can be installed and
operated in any position. For applications
handling gases, it is more desirable
to install models LM and ELL with the
discharge pointing down at 45° or more.
This prevents back splash of motive liquid
into the suction line.

2. Jet pumps should be installed with pipe and
fittings which provide minimum resistance
to fluid flow. Pipe line friction losses must
always be a consideration when estimating
jet pump performance.

3. It is recommended that provisions be made
for pressure gauge connections near the
operating inlet, suction and discharge
connections of the jet pump. If operating
difficulties are encountered at any time, it
may become necessary to install pressure
gauges to identify the problem.

4. When pumping liquids, suction piping
should be sized so that the velocity of the
liquid does not exceed 4 feet per second.
This is almost always obtained automatically
when the suction line is the same pipe size
as the suction connection.

5. Some back pressure is necessary to prime
models LL, LM and LH when pumping
liquids and when using the model LM
as an exhauster. A simple arrangement
which would provide the minimum
necessary back pressure is the installation
of two consecutive 90° elbows in the
dischargeline.

6. When flow reversal into the suction must
be prevented, a check valve should be
installed in the suction line close to the jet
pump. Pressure drop created by the check
valve must be considered when applying the
jetpump.

7. Install a valve in the suction line if it is
desirable to:

a. Prevent contamination of suction fluid by

motive fluid at start up.
b. Prime a centrifugal pump.
c. Throttle suction flow.

8. When a gas operated jet pump is used to lift

liquids by suction or vacuum the jet pump
should be located as close to the level of
the liquid as practical. However, any liquid
entrained into the jet pump will cause the
jet pump to stop pumping, resulting in a
possible suction flow reversal.

9. Discharge piping should be sized as short as

possible and with the least number of turns
and restrictions. Discharge piping friction
losses must always be considered when
estimating jet pump performance. Increase
discharge line pipe size if necessary to
minimize loss.

10. Do not impose system piping loads on the
jet pump. The unit is not designed to be a
load-bearing fitting.

11. All piping should be free of foreign materials
which could clog the jet pump.

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PENBERTHY MODELS LL,LM, LH, ELL, GL, GH PLASTIC MATERIAL CONSTRUCTION JET PUMPS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

5 OPERATION

5.1 Pre-operational check

1. Ensure that all installation procedures have
been completed.

2. Take all precautions necessary to handle
the possibility of leakage.

3. Ensure that any restrictions in the discharge
line have been removed.

4. Ensure that any discharge line valves are
fully open.

5. Ensure that the suction line valve, if
installed, is fully closed.

5.2 Operating

1. Open the operating liquid valve quickly.

2. On liquid applications, throttle operating
fluid flow, if possible, until desired motive
pressure is obtained.

3. Open the suction line valve, if any.

4. Regulate the discharge pressure as desired
to a value within the capability published in
the relevant technical data sheet or product
proposal referred to previously.

5. For pump priming applications, when
evacuation is completed, close the suction
valve and immediately start the centrifugal
pump. Then shut off the operating gas valve
to the jet pump.

6 MAINTENANCE

WARNING

Maintenance should only be undertaken by
qualified, experienced personnel who are
familiar with this equipment and have read and
understood all the instructions in this manual.
DO NOT proceed with any maintenance unless
the jet pump has been relieved of all pressure
or vacuum, has been allowed to reach ambient
temperature and has been drained or purged of
all fluids. Failure to follow these instructions may
cause a sudden release of pressure resulting in
personal injury or property damage.

6.1 Preventative maintenance

The user must create maintenance schedules,
safety manuals and inspection details for each
specific installation of a jet pump.

FIGURE 1
Typical installation schematic liquid operated pumping liquids

Operating

Operating liquid

pressure

Foot valve

liquid valve

Inlet Discharge

Suction

FIGURE 2
Typical installation schematic gas operated pumping gases

Operating

gas valve

Operating

pressure

Suction
pressure
(vacuum)

On all installations the following items should
be evaluated regularly by the user for purposes
of maintenance:

1. Jet pump units for corrosion or debris
buildup.

2. Piping and fittings for corrosion or debris
build up.

Inlet

Suction

Suction
check valve

The user must determine an appropriate
maintenance schedule necessary for his or her
own specific application, upon evaluation of
his or her own operating experience. Realistic
maintenance schedules can only be determined
with full knowledge of the services and
application situation involved.

3. All connections for tightness.

4. Strainers for debris build up.

6.2 Troubleshooting (see Table 2)

5. Units for wear.

Discharge

TABLE 2 - TROUBLESHOOTING

Problem Cause Solution

The suction flow is less than expected 1. Suction piping is too restrictive 1. Remove restriction

2. Discharge pressure is too high 2. Remove restriction

3. Operating fluid or gas pressure is lower than required 3. Increase pressure

4. Suction or motive liquid is at much higher than ambient temperature 4. Lower temperature or size larger jet pump

5. Suction piping leaks 5. Tighten fittings

4

PENBERTHY MODELS LL,LM, LH, ELL, GL, GH PLASTIC MATERIAL CONSTRUCTION JET PUMPS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

7 REMOVAL

WARNING

Do not proceed with removal of the jet pump
from connecting piping unless the jet pump has
been relieved of all pressure or vacuum, has
been allowed to reach ambient temperature and
has been drained or purged of all fluids. Failure
to follow these instructions may cause a sudden
release of pressure resulting in personal injury or
property damage.

WARNING

Jet pumps manufactured in PVC, molded
polypropylene or Kynar

®

materials are of
one-piece construction and are not intended
for disassembly or field repair, see Figure 1.
PVC, molded polypropylene or Kynar

®

units which
have been damaged, worn out or have developed
leaks should be taken out of service, disposed
of in a safe manner determined by the user, and
replaced. Attempted repair of defective PVC,
molded polypropylene or Kynar

®

one-piece units
may cause severe personal injury or property
damage.

8 DISPOSAL AT END OF USEFUL LIFE

Penberthy jet pumps are used in a variety of
fluid applications. By following the appropriate
federal and industry regulations, the user
must determine the extent of preparation and
treatment the jet pump must incur before its
disposal. A Material Safety Data Sheet (MSDS)
may be required before disposal services accept
certain components.

9 TELEPHONE ASSISTANCE

If you are having difficulty with your jet pump,
contact your local Penberthy distributor. So that
we may assist you more effectively, please have
as much of the following information available
as possible when you call:

- Model number

- Name of the company from whom you
purchased the jet pump

- Invoice number and date

- Process conditions (pressure, flow rates, tank
shape, etc.)

- A brief description of the problem

- Trouble shooting procedures that failed

If attempts to solve your problem fail, you may
request to return your jet pump to the factory
for intensive testing. You must obtain a Return
Authorization (R.A.) number from Emerson
before returning anything. Failure to do so will
result in the unit being returned to you without
being tested, freight collect. To obtain an R.A.
number, the following information (in addition to
that above) is needed:

- Reason for return

- Person to contact at your company

- 'Ship-to' address

There is a minimum charge for evaluation
of non-warranty units. You will be contacted
before any repairs are initiated should the cost
exceed the minimum charge. If you return a
unit under warranty, but it is not defective, the
minimum charge will apply.

Metal, glass and polymers should be recycled
whenever possible. Refer to order and
relevant technical data sheet for materials of
construction.

5

PENBERTHY MODELS LL,LM, LH, ELL, GL, GH PLASTIC MATERIAL CONSTRUCTION JET PUMPS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

10 EXPLODED PARTS DRAWING

FIGURE 3
Barstock PVC one-piece section cut-away

Suction
connection

Operating
connection

Discharge

connection

FIGURE 4
Barstock exploded cut-away

82

11

61

FIGURE 5
Welded polypropylene section cut-away

Operating
connection

Suction
connection

Discharge

connection

Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.
Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

Penberthy is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions,
Emerson andthe Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.

FIGURE 6
Molded exploded cut-away

61

11

PARTS LIST

Ref. nr Item

11 Body
61 Nozzle
82 Delivery jet

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6