2 | Baker Hughes
Copyright 2020 Baker Hughes Company. All rights reserved.
Introduction
Scope
The following instructions are designed to guide the user through
the installation and maintenance of the Masoneilan 49000 Series
control valves.
The Masoneilan 49000 Series product is part of Masoneilan’s
Severe Service Product portfolio, and is custom designed to fit
our customer’s most difficult applications. This document provides
detailed installation and maintenance instructions for the 49000
Series product line.
Serial Plate
The serial plate is usually fixed to the side of the actuator yoke.
It indicates information about the valve including size and type,
pressure class rating, body/bonnet material, and serial number.
After Sales Service
Baker Hughes 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 Baker Hughes Masoneilan representative or Baker Hughes
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 Baker Hughes 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.
Unpacking
Care must be exercised when unpacking the valve to prevent
damage to the accessories and component parts. Contact the
local Baker Hughes Sales Office or Service Center with any issues
or problems. Be sure to note the valve model number and serial
number in all correspondence.
Numbering System
2nd
9
5th
4th
3rd
51 Cylinder
Double-Acting
52 Cylinder
Spring-Return
Air to Close
53 Cylinder
Spring-Return
Air to Open
87 Spring-Diaphragm
Air to Close
88 Spring-Diaphragm
2nd
1st
4
1st
6th
Actuator Type
0 Custom
Characteristic
1 Linear
Trim
Configuration
0 Unbalance
2 Polymeric
Seal Ring
and Soft
Seat
4 Metal Seal
Ring and
Metal Seat
with Auxiliary
Plug
5 Metal Seal
Ring and
Metal Seat
6 Polymeric
Seal Ring
and Metal
Seat
9 Graphite
Seal Ring
Seal Type
F Forged
Body
A Angle Body
EB Extension
Bonnet
D Diffuser
Options
0 Undefined
1 Single Stage
Lo-dB*
2 Double Stage
Lo-dB
8 Partial Stage
9 V-LOG*
Trim Type
Body Series
49 Energy
Management
Control Valve
