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Masoneilan Regulators Models 525 & 526 Manual | 2
2.
Introduction
The following instructions should be thoroughly reviewed
and understood prior to installing, operating or performing
maintenance on this equipment. Throughout the text, safety
and/or caution notes will appear and must be strictly
adhered to, otherwise, serious injury or equipment
malfunction could result.
Serial Plate
The serial plate is usually fixed to the side of the actuator
yoke. It indicates information about the regulator including
size and type, pressure class rating, body/bonnet material,
and serial number.
After Sales Service
GE offers Masoneilan After Sales Service comprised of
highly qualified technicians to support the installation,
operation, maintenance and repair of its equipment. For
support contact the local GE Masoneilan representative or
GE Masoneilan factory located closest to you.
Spare Parts
Only Masoneilan replacement parts should be used when
carrying out maintenance operations. Obtain replacement
parts through local Masoneilan representatives or
Masoneilan Parts Department.
When ordering spare parts, the MODEL AND SERIAL
NUMBERS indicated on the manufacturer’s serial plate
MUST BE GIVEN. The serial plate is on the side of the
actuator yoke.
Actuator and Accessories
Actuators and other valve accessories have their own
instruction manuals that provide information and details
on the assembly and installation. Refer to the appropriate
instruction manual for each unique accessory.
3.
General
These installation and maintenance instructions apply to
all sizes and ratings of the Masoneilan 525/526 model
regulators regardless of the type of trim used.
525/526 model double seat regulators are designed with
built in versatility making them well-suited to handle a
wide variety of process applications.
Standard construction offers a contoured plug with a
threaded seat ring. The upper and lower plug guiding
provides maximum support to ensure plug stability. A
series of reduced area trim is available to provide wide
flow range capabilities in all regulator sizes. Tight Shutoff
Class II leakage is standard.
Recommended spare parts required for maintenance are
listed in the Parts Reference table on page 11. The model
number, size, rating and serial number of the valve are
shown on the identification tag located on the actuator.
Refer to the below chart for the 525/526 numbering
system.
4.
Unpacking
Care must be exercised when unpacking the regulator to
prevent damage to the accessories and component parts.
Should any problems arise, contact the local Masoneilan
Representative or After Sales Department.
1
st
2
nd
3
rd
-
4
th
Body Series
Plug Type
Other Options
5. Regulator
Type
2. Double
Seat
5. Reducing
Service(1)
-50. Differential
Pressure
6. Back
Pressure
Service(2)
-6. Extended
Bonnet
(1) Downstream Pressure Controlled (See Figure 1a)
Summary of Contents for Masoneilan 525
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