6
PENBERTHY
SERIES N7 GAGECOCKS
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
8 TELEPHONE ASSISTANCE
If you are having difficulty with your Series
N7 gagecocks, contact your local Penberthy
distributor. You may also contact the factory
direct at (956) 430-2500 and ask for an
applications specialist. So that we may assist
you more effectively, please have as much of
the following information available as possible
when you call:
- Model #
- Name of the company from whom you
purchased the N7 gagecocks
- Invoice # and date
- Process conditions (pressure, flow rates, tank
shape, etc)
- A brief description of the problem
- Troubleshooting procedures that failed
If attempts to solve your problem fail, you may
request to return your N7 gagecocks 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.
2. Reassembly
a. Refer to exploded view Figure 2.
b. Prepare for installation of new packing
by cleaning all packing chambers and
glands of upper and lower gagecocks.
c. Slip stem packing retainer (18) on stem
(17) and install new stem packing (25).
d. Thread stem assembly into gagecock by
turning clockwise until stem seats and
then back off one turn.
e. Assemble stem packing nut (26) and
tighten in place.
f.
Assemble handwheel (28) or lever (261),
nameplate (163) and handwheel screw
(100) on stem and tighten securely into
place.
g. Replace glass packing nut (37), glass
packing gland (36), new glass packing
(34) and glass packing retainers (35) on
each end of tubular glass (48).
h. Insert glass packing retainer (35A) into
stuffing box of lower gagecock.
i. With upper gagecock turned ⅛ turn
counterclockwise from vertical, insert
one end of sight glass into stuffing
box connection in upper gagecock to
sufficient depth to insure clearance of
lower glass packing nut.
j. Tighten upper gagecock to original
position while holding sight glass in place
with upward force to insure its clearing
lower sight glass connection. Check
vertical alignment of gagecocks.
k. Slide sight glass down into lower
gagecock sight glass connection to a
positive stop.
l. Tighten glass packing nuts.
m. Close both gagecocks by turning
handwheel or lever clockwise until stem
seats.
n. Replace guard rods (40).
3. Refer to Section 4 'Installation' and
Section 5 'Operation of gagecock' when
returning to service.
7 DISPOSAL AT END OF USEFUL LIFE
Penberthy Series N7 gagecocks 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 N7 gagecocks
must incur before their 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
applicable technical data sheets for materials
of construction.
Summary of Contents for PENBERTHY N7 Series
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