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PENBERTHY MODELS GL AND GH GAS OPERATED 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
defective material or workmanship.
Prior to submitting any claim for warranty
service, the owner must submit proof of
TABLE OF CONTENTS
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.
operatingtemperatures .............................. 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 Effect of related piping and precautions .... 3
5 Operation ................................................. 3
5.1 Pre-operational check ................................. 3
5.2 Operating ...................................................... 3
6 Maintenance ............................................ 4
6.1 Preventative maintenance ........................... 4
6.2 Troubleshooting ........................................... 4
7 Disassembly - reassembly ...................... 4
8 Disposal at end of useful life ................... 4
9 Telephone assistance .............................. 5
10 Exploded parts drawing ........................... 5
Tables and figures
Table 1 -
Table 2 - Troubleshooting ................................ 4
Figure 1 - Typical installation schematic
Figure 2 - Typical installation schematic
Figure 3 - Exploded parts drawing ................... 5
Design ratings
operatingtemperatures ................... 2
gasoperated pumping gases ........... 3
steamoperated pumping water ...... 3
at max. and min.
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 GL AND GH GAS OPERATED 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 or compatible for the
user's specific application.
WARNING
Failure to follow any instruction could possibly
result in a malfunction of the jet pump with
resulting sudden release of pressure, severe
physical injury or property damage.
2 INTRODUCTION
2.1 Features and specifications
Penberthy models GL and GH gas operated jet
pumps are designed primarily for exhausting,
evacuating and priming using steam or air as
the operating medium; and for pumping water
using steam as the operating medium. They can
also be used with other gases as the operating
medium.
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 data sheets or, when
provided, the specifically stated design limits on
a product proposal.
2.3 Application data
The model GL is intended to operate between
60 psig (410 kPaG) and 150 psig (1030 kPaG)
steam pressure against moderate or zero
discharge head. The model GH is intended
to operate between 20 psig (140 kPaG) and
150 psig (1030 kPaG) steam pressure against
moderate to substantial discharge head.
Note: For specific application data within the
above ranges, 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 (cast on side of body) and
model designation (stamped on nozzle hex
flats) 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 Nozzles
Iron
Bronze
316 SST
80 psig [550 kPaG] at -20°F [-29°C] to +150°F [66°C]
50 psig [340 kPaG] at + 350°F [177°C]
200 psig [1380 kPaG] at -20°F [-29°C] to +150°F [66°C]
125 psig [860 kPaG] at + 400°F [204°C]
200 psig [1380 kPaG] at -150°F [-101°C] to +150°F [66°C]
125 psig [860 kPaG] at + 400°F [204°C]
200 psig [1380 kPaG] at -20°F [ -29°C] to +400°F [204°C]
200 psig [1380 kPaG] at -20°F [ -29°C] to +400°F [204°C]
200 psig [1380 kPaG] at -150°F [-101°C] to +400°F [204°C]
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PENBERTHY MODELS GL AND GH GAS OPERATED JET PUMPS
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
4 INSTALLATION
Note: The user should refer to the relevant
technical data sheet or product proposal to
obtain dimensional information for the specific
size and model of jet pump.
Check the exploded view (Figure 3) for the
location of operating, suction and discharge
connections to insure correct hook up.
4.1 Effect of related piping and precautions
1. Penberthy models GL and GH gas operated
jet pumps may be installed and operated in
any position.
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
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. Steam must not have over 20°F (-7°C) of
superheat, or performance will differ from
that published in the relevant technical data
sheet or product proposal referred to above.
5. 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.
6. Install a valve in the suction line if it is
desirable to:
a. Prevent contamination of suction fluid by
the motive fluid at start up.
b. Prime a centrifugal pump.
c. Throttle suction flow.
7. 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, other than water
when using steam as the operating medium,
may cause the jet pump to stop pumping,
resulting in a possible suction flow reversal.
8. 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.
9. Do not impose system piping loads on a
jet pump. The unit is NOT designed to be a
load-bearing fitting.
10. All piping should be clean and free of foreign
materials which could clog the jet pump.
FIGURE 1
Typical installation schematic gas operated pumping gases
Motive gas
Motive
pressure
valve
Suction
pressure
(vacuum)
Inlet Discharge
Suction
Check
valve
FIGURE 2
Typical installation schematic steam operated pumping water
Motive gas
Motive
pressure
Foot
valve
valve
Inlet
Discharge
Suction
5 OPERATION
5.1 Pre-operational check
1. Ensure that all installation procedures have
been completed.
2. Ensure that any restrictions in the discharge
line have been removed.
3. Ensure that any discharge line valves are
fully open.
4. Ensure that the suction line valve, if
installed, is fully closed.
5.2 Operating
1. Open the motive valve quickly.
2. Open the suction line valve, if any.
3. Regulate the discharge pressure as desired
to a value within the capability published in
the relevant technical data sheet or product
proposal referred to above.
4. For pump priming applications, when
evacuation is completed, close the suction
valve and immediately start the centrifugal
pump. Then shut off the motive valve to the
jet pump.
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PENBERTHY MODELS GL AND GH GAS OPERATED JET PUMPS
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
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 following items should be evaluated
regularly by the user for purposes of
maintenance:
1. Jet pump units for corrosion or debris
buildup.
2. Piping and fittings for corrosion or debris
build up.
3. All connections for tightness.
4. Strainers for debris build up.
5. Units for wear.
The user must determine an appropriate
maintenance schedule most suitable for his or
her specific application, upon evaluation of their
own application and the factors stated above.
7 DISASSEMBLY - REASSEMBLY
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 personal
injury or property damage.
Models GL and GH jet pumps are made up of
two parts (see Figure 3): a nozzle (61) and a
body (11) which are held together by a straight
right hand mechanical thread, closing the face
seal between these parts.
To disassemble the unit, first attach a short
piece of pipe to the suction connection as a
handle, then grip the nozzle flats and rotate in a
counterclockwise direction.
When ready to reassemble the unit, be sure
the seal face of the nozzle and body are free of
foreign material and raised metal due to nicks.
A non-hardening pipe seal compound may
be applied to the threads to promote sealing
further. Thread the body back on to the nozzle
turning in a clockwise direction.
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.
Metal, glass and polymers should be recycled
whenever possible. Refer to order and
relevant technical data sheets for materials of
construction.
6.2 Troubleshooting (see Table 2)
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. Motive fluid pressure is lower than required 3. Increase pressure
4. Suction liquid is at much higher than ambient temperature 4. Lower temperature or size larger jet pump
5. Suction piping leaks 5. Tighten fittings
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PENBERTHY MODELS GL AND GH GAS OPERATED JET PUMPS
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
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.
10 EXPLODED PARTS DRAWING
FIGURE 3
61
Operating
connection
11
PARTS LIST
Ref. nr Item
11 Body
61 Nozzle
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 andthe 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.
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