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Instruction Manual
D104665X012
May 2024
Types OSA/80X, OSA/84X and OSA/88X
Slam-Shut Controller
Table of Contents
Introduction ................................................................. 1
Specifications ............................................................. 2
Installation .................................................................. 3
Startup ........................................................................ 3
Periodical Checks ....................................................... 3
SEP Statement ........................................................... 4
ATEX Requirements ................................................... 4
Maintenance ................................................................ 4
Troubleshooting .......................................................... 6
Parts Lists ................................................................... 7
▲
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fire causing property damage and
personal injury or death.
Tartarini™ slam-shut controller
must be installed, operated and
maintained in accordance with federal,
state and local codes, rules and
regulations and Emerson Process
Management Regulator Technologies,
Inc. (Emerson) instructions.
If the slam-shut valve vents gas or a
leak develops in the system, service
to the unit may be required. Failure
to correct trouble could result in a
hazardous condition.
Call a gas service person to service the
unit. Only a qualified person must install
or service the slam-shut valve.
WARNING
Figure 1. Type OSA/80X
Introduction
Scope of the Manual
This Instruction Manual provides instructions for
installation, startup, maintenance, troubleshooting
and spare parts ordering for the OSA/80X Series
slam-shut controller.
Product Description
Designed for pressure regulators and slam-shut valves
control, the following types are available:
• Type OSA/80X
Diaphragm actuator for minimum and/or
maximum pressure.
Version: MPA-D and APA-D.
• Type OSA/84X - Type OSA/88X
Piston actuator for minimum and/or
maximum pressure.
• Type OSA/80X-PN
Diaphragm actuator for minimum and/or maximum
pressure, controlled by PRX-PN series pilots.
• Type OSA/84X-PN
Piston actuator for minimum and/or maximum
pressure, controlled by PRX-PN series pilots.
OSA/80X Series
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Table of Contents
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Summary of Contents for Emerson TARTARINI OSA/80X Series
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Page 1: Table Of Contents
Designed for pressure regulators and slam-shut valves maintained in accordance with federal, control, the following types are available: state and local codes, rules and regulations and Emerson Process • Type OSA/80X Management Regulator Technologies, Diaphragm actuator for minimum and/or Inc. (Emerson) instructions. -
Page 2: Specifications
OSA/80X Series Specifications The Specifications section gives some general specifications for the OSA/80X slam-shut valve. The nameplates give detailed information for a particular slam-shut valve as built in the factory. Pressure Connection Size and Style Construction Materials 1/4 NPT Body Types OSA/84X and OSA/88X: Brass Overpressure Set Range Types OSA/80X-MPA-D, OSA/80X-APA-D: Steel... -
Page 3: Installation
OSA/80X Series Installation (See Figures 1, 3 and 4) Startup 1. Using the Reset Lever (supplied with slam shut ▲ WARNING valve), reset (open) the slam shut valve by turning the stem (key 6) in anti-clockwise direction as shown by the arrow mark on the casing (key 47). Personal injury or equipment damage, due to bursting of pressure-containing 2. -
Page 4: Sep Statement
OSA/80X Series Maintenance SEP Statement Emerson declares this product conforms to Pressure Routine controller maintenance entails simply periodic Equipment Device (PED) 2014/68/EU. checking of the diaphragm on the Type OSA/80X (the piston lip seal on the Type OSA/84X) and the The product is designed and manufactured in movement of the levers, i.e. - Page 5 OSA/80X Series General Maintenance 4. Remount bushing (key 13), make sure that the dowels are firmly set in the grooves of the 1. Remove screws (key 40) and casing (key 47). stem (key 6). 2. Remove dowels (key 12) and bushing (key 13). 5.
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Page 6: Troubleshooting
OSA/80X Series Table 2. Troubleshooting for OSA/80X Series Controller SYMPTOMS CAUSE ACTIONS The impulse piping to port A is not Check impulse piping connected properly Downstream pressure coincides with the Check slam-shut settings Controller does not remain set maximum or minimum slam-shut settings Diaphragm (62) is damaged To be replaced (Lip seal (66) on Types OSA/84X, OSA/88X) -
Page 7: Parts Lists
OSA/80X Series PARTS LISTS Type OSA/80X Series Slam-Shut Controller (See Figure 4) Item Description Item Description Plate Spring Releasing bushing Gasket Casing Screw Screw Gasket Minimum pressure adjusting screw Balls holder Maximum pressure adjusting nut Stem Pipe assembly Roller O-ring Washer Reloading nut Spring... - Page 8 OSA/80X Series DETAIL OF TYPE OSA/80X WITH MICROSWITCH SECTION D-D 20 21 12 11 SECTION C-C LM/1389 Figure 4. OSA/80X Series Slam-Shut Controller Detailed Assembly (Standard Version)
- Page 9 OSA/80X Series 41 42 19 18 SECTION A-A 47 48 49 50 51 27 26 SECTION B-B LM/1389 Figure 4. OSA/80X Series Slam-Shut Controller Detailed Assembly (Standard Version) (continued)
- Page 10 OSA/80X Series 34 59 63 64 60 62 61 65 34 59 63 64 60 62 61 TYPE OSA/80X-APA-D DETAIL TYPE OSA/80X-MPA-D DETAIL 34 59 63 64 60 66 67 34 59 63 TYPE OSA/88X DETAIL TYPE OSA/84X DETAIL LM/1389 Figure 4.
- Page 11 OSA/80X Series...
- Page 12 Sede Amministrativa/Administrative Headquarters: OMT Tartarini, Via Clodoveo Bonazzi 43, 40013 Castel Maggiore (Bologna), Italy C.F. - P.I. e R.I. di MI 13186130152 - REA di MI/n.1622916 Direz. e Coord. (art. 2497 bis CC): EMERSON ELECTRIC CO. St. Louis (USA) Socio Unico...