Emerson Fisher 63EGLP Series Instruction Manual page 8

Relief valve
Hide thumbs Also See for Fisher 63EGLP Series:
Table of Contents

Advertisement

Type 63EGLP
WaRninG
!
To avoid personal injury and
equipment damage, isolate the valve
from all pressure. Cautiously release
pressure from the valve before
attempting disassembly.
Type 63EGLP Dual-Pilot assembly
To Change Out A Pilot
This section only applies to
Type 63EGLP assemblies received with
two pilots. if your assembly only has
one pilot, refer to section To Install an
Additional Pilot. Replacing one of the
two pilots requires the following tools
and Fisher™ Key numbers:
• Wrench Sizes (recommend open-ended or
adjustable): 11/16 in.
• Required Fisher Key numbers
(QTy): Matching Type 6358EBLP or
6358EBHLP Pilot (x1)
• Option Key numbers (QTy): 49 (x2)
To easily identify the active pilot, check
the direction of handle assembly. The
handle assembly is always pointing
away from the active pilot. See Figure 3.
Only apply thread sealant to Male nPT
threads. Sealant applied to female pipe
connections or to compression fittings
could inhibit the seal and result in a leak
or product contamination.
1. The Type 6358EBLP pilot ships preassembled
with a 1/4 in.-by-Compression elbow (key 43,
Figure 9) oriented in the correct direction in Port C
(Figure 5). If your pilot does not have this elbow
installed, please contact your local Fisher LP-Gas
Distributor to obtain the correct part.
8
note
CauTiOn
CauTiOn
a small amount of vapor release
may occur during steps 2 through 4.
if the main valve or alternate pilot
continuously vents while conducting
steps 2 through 4, return the handle to
the previous position and contact your
local LP-Gas distributor.
2. Locate the wire seal securing the sliding lock
mechanisms on the ball valve handle and remove
it. The wire seals are factory installed to discourage
tampering from untrained professionals and must
be replaced upon completion.
3. The 3-way ball valves are factory-equipped with
positive stops to prevent over-rotation. In the event
these stops have been removed, do not over-
rotate the handle assembly as this may cause
improper valve operation. Slowly rotate the handle
assembly (key 48) of the 3-way valves until the
handle assembly points to the pilot that will be
removed. The handle assembly should be oriented
such that the sliding handle locks are capable of
sliding into place.
4. Gently loosen the 11/16 in. compression fitting
securing the stainless steel line to the inactive pilot
to bleed off trapped pressure.
CauTiOn
if excessive amounts of process
fluid continue to discharge out of the
fitting, secure the fitting and confirm the
ball valve handle orientation is correct.
if the orientation is correct and you
are unable to completely depressurize
the inactive pilot, contact your local
LP-Gas distributor for additional support
as the ball valve assembly may need to
be replaced.
5. Once the inactive pilot is completely depressurized,
remove the compression fitting and move the
stainless steel tube out of the way.
Loosening the compression fitting on
the other end of the tube may make this
step easier.
6. Hold the remaining pipe nipple (key 36) in place
with a pipe wrench and remove the pilot.
note

Advertisement

Table of Contents
loading

Table of Contents