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OpGL

Globe Control Valve

Product Instruction Manual

Leading Technologies

For Control

INTRODUCTION

Scope of Manual

This instruction manual includes installation,
maintenance, and parts information for the
Optimux OpGL control valve. Refer to separate
manuals for information regarding installation,
operation, and maintenance of additional
features such as the special trim diaphragm
actuator, handwheel, extension bonnets, etc.
Only qualified persons should install, operate,
and maintain an Optimux OpGL valve. Any
questions about these instructions should be
directed to your Optimux sales office or sales
representative before proceeding. 

This publication does not contain information on
Optimux positioners.  Refer to the appropriate
manual for information on positioner installation,
operation, maintenance, and calibration.

Description

The OpGL is a spring-cylinder actuated globe
valve in which the supply air pressure and the
fluid pressure combine forces to produce an
exceptionally tight shutoff. In addition, self-
aligning seat rings make shutoff easier to
achieve. Valve specifications are as follows:

Table 1: Specifications

TABLE OF CONTENTS

INTRODUCTION

Scope of Manual ............................ pg. 1
Description...................................... pg. 1
Specifications ................................ pg. 1
Safety Information ........................ pg. 1
Unpacking ...................................... pg. 2

INSTALLATION ..............................

pg. 2

MAINTENANCE ............................

pg. 3

ASSEMBLY AND DISASSEMBLY

Body Disassembly.......................... pg. 4
Body Reassembly .......................... pg. 5
Actuator Disassembly.................... pg. 7
Actuator Reassembly .................... pg. 8

AIR-ACTION REVERSAL

Air-to-Open .................................... pg. 9
Air-to-Close .................................... pg. 9

SAFETY INFORMATION

WARNING

: Indicates a potentially

hazardous situation, which, if not
avoided, could result in 

death or

serious injury.

CAUTION

: Indicates a potentially

hazardous situation, which, if not
avoided, could result in 

minor or

moderate injury and/or property
damage.

Note:

Indicates a potential situation,

which, if not avoided, may result in an
undesired result or state.

Diameter

Body Style

Connections

Materials

Bonnet Types

Internals

1/2 ’’- 42’’ : ANSI Class 150-600 

Globe, Angle, Three-way, Steam-
jacketed, Y-body

Separable flanges, Internal flanges,
Socketweld, Buttweld

Carbon Steel, Stainless steel, Chrome-
molly, Alloy, Hastelloy, B&C, Titanium,
and others…

Normal, Extended, Cryogenic, Coal box
extended

Flow characteristics, equal percentage,
linear, and quick-open.  Seats available
in metal or soft (for "bubble tight" shut
off)

Summary of Contents for Optimux OpGL

Page 1: ...shutoff easier to achieve Valve specifications are as follows Table 1 Specifications TABLE OF CONTENTS INTRODUCTION Scope of Manual pg 1 Description pg 1 Specifications pg 1 Safety Information pg 1 U...

Page 2: ...uator vertical above the body This is also important for cryogenic applications to keep the packing isolated from the flowing medium permitting the packing temperature to remain close to ambient tempe...

Page 3: ...the Assembly Disassembly section 1 Inspect end flanges and bonnet for signs of gasket leakage Tighten flange and bonnet bolting if required See Table 4 2 Check the pressure balance sleeve metal bellow...

Page 4: ...ep 2 If valve is air to open apply air under piston to raise the plug off the seat before taking the valve apart 2 Take out the bonnet flange bolting which will allow for removal of the actuator bonne...

Page 5: ...the top guide to enter Different spacer lengths allow a wide variety of packing configurations such as twin seal and vacuum pressure packing WARNING Valves with extended bonnets or metal bellows seals...

Page 6: ...d up against the finger tight body with such force that it will not be possible to wriggle the flange If improper seating occurred the bonnet flange can be wriggled with light hand force If this occur...

Page 7: ...positioned correctly between the bonnet and seat ring 2 Loosen the stem clamp 3 Take out the packing box bolting and yoke clamps 4 Completely unscrew the actuator off of the plug and bonnet without r...

Page 8: ...time until it is in place Replace the stem bellows and the stem clamp 7 Reinstall the gasket and adjusting screw using a new adjusting screw gasket The adjusting screw should be tightened only to the...

Page 9: ...points to the closed position 13 Reconnect the actuator positioner tubing supply and signal lines AIR ACTION REVERSAL Air to Open To switch the air action from air to close to air to open continue as...

Page 10: ...No 88 Yoke Clamp Item No 76 Packing Spacer s Item Nos 94 99 Bonnet Item No 40 Bonnet Flange Item No 70 Anti Extrusion Spacer Item No 93 Adjusting Screw Gasket Item No 248 Spring Button Item No 227 Ac...

Page 11: ...Square Packing w Lubricator Fitting Twin Square Packing w Lantern Ring Braided Wiper Rings 2 Vacuum Seal V packing Vacuum Seal Twin V packing w Lantern Ring Fugitive Emissions Packing PTG PT PTXT Liv...

Page 12: ...12 OpGL Globe Control Valve O S O S Figure 3 Air action Configurations Air to Open Air to Close...

Page 13: ...em No 114 Bonnet Flange Stud Item No 108 Bonnet Flange Item No 70 Figure 4 Exploded View Body Assembly NOTE Item numbers correspond directly to the valve s bill of material Refer to it for specific pa...

Page 14: ...Screw Gasket Item No 248 Cylinder Item No 202 Serial Plate Item No 252 Stem Clamp Item No 249 Stem Clamp Bolt Item No 240 Spring Button Item No 227 Spring Item No 229 Actuator Stem Lock Nut Item No 3...

Page 15: ...service conditions and contact factory 5 Incorrectly adjusted plug 5 Refer to steps 8 10 of Reassembling the Body section for correct plug adjustment 6 Improper flow direction 6 Refer to original spec...

Page 16: ...ly and should not be considered certified or as a guarantee of satisfactory results by reliance thereon Nothing contained herein is to be construed as a warranty or guarantee express or implied regard...

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