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Instruction Manual
0004EN-PS7980-IM
-
November 2009
Rev.01
Type PS/79 and PS/80 Pilots
SUMMaRY
Introduction ........................................................................ 1
Characteristics ................................................................... 1
Labelling ............................................................................ 2
Dimensions and Weights ................................................... 2
Installation ......................................................................... 2
Startup ............................................................................... 2
Periodic Checks ................................................................ 2
SEP Statement .................................................................. 2
ATEX Requirements .......................................................... 2
Maintenance ...................................................................... 3
Troubleshooting ................................................................. 4
Parts Lists .......................................................................... 4
Schematic Assemblies ....................................................... 6
INTRODUCTION
Scope of Manual
This manual provides installation, startup, maintenance, trouble-
shooting and spare parts for the pilot series PS/79 and PS/80.
Product Description
Designed for pressure regulators control, the following types
are available:
•
PS/79
- single diaphragm pilot for pilot controlled gas
pressure regulator (active or wide-open monitor)
•
- single diaphragm pilot for setting of first
PSO/79
pressure reducing step of pilot controlled gas pressure
regulator (working monitor)
•
REO/79
- single diaphragm pilot for setting of downstream
pressure reducing step of pilot controlled gas pressure
regulator (working monitor)
In case of failures, these pilots with single diaphragm will
cause a fail open reaction of the regulator.
•
PS/80
- double diaphragm pilot for pilot controlled gas
pressure regulator (active or wide-open monitor)
•
- double diaphragm pilot for setting of first
PSO/80
pressure reducing step of pilot controlled gas pressure
regulator (working monitor)
•
REO/80
- double diaphragm pilot for setting of
downstream pressure reducing step of pilot controlled gas
pressure regulator (working monitor)
PS/79 and PS/80
Figure 1. Type PS/79 and PS/80 Pilots
In case of failures, these pilots with double diaphragms will
cause a fail close reaction of the regulator.
RE/79 and RE/80 versions are in accordance with specific
requirements of Italian market applications.
Tightness cover version available on request (e.g. PS/79-D
and PS/80-D).
The full range of PS pilots can be installed in the following
pressure regulators:
FL Series - Cronos Series - EZH Series - 971 Model
ChaRaCTERISTICS
aPPLICaTION
WORKING MONITOR
REGULaTOR
OR
MONITOR
REGULaTOR MONITOR
PS/79
PSO/79
REO/79
PS/80
PSO/80
REO/80
(*) PS/79-AP and PS/80-AP versions are available on request with a set range up to 60 bar.
Table 1. Technical features
1/4" NPT female threaded connections.
All PS/ series pilots are supplied with a filter (5µ filtering
degree) and built-in pressure stabilizer, with the exception of
pilots PSO/79 and PSO/80.
aLLOWaBLE
SET RaNGE
BODY aND
PRESSURE
W
COVERS
d
PS
MaTERIaL
(bar)
(bar)
0.5 - 40 *
100
Steel
1.5 - 40 *
Table of Contents
Related Manuals for Emerson TARTARINI PS/79
Summary of Contents for Emerson TARTARINI PS/79
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Page 1: Table Of Contents
Instruction Manual PS/79 and PS/80 0004EN-PS7980-IM November 2009 Rev.01 Type PS/79 and PS/80 Pilots SUMMaRY Introduction ................ 1 Characteristics ..............1 Labelling ................2 Dimensions and Weights ........... 2 Installation ................. 2 Startup ................2 Periodic Checks ..............2 SEP Statement ..............2 ATEX Requirements ............ -
Page 2: Labelling
PS/79 and PS/80 LaBELLING SEP STaTEMENT Emerson Process declares this product conforms to APPARECCHIO TIPO / DEVICE TYPE BOLOGNA ITALY O.M.T. Note 1 Pressure Equipment Directive (PED) 97/23/EC. MATRICOLA SERIAL Nr. Article 3 section 3 and was designed and manufactured in... -
Page 3: Maintenance
PS/79 and PS/80 MaINTENaNCE Replace diaphragms (key 10) and all seals. Proceed as directed in the replacement of filter, stabilizer diaphragm, seal pad, and valve seal pads. CaUTION Reassembly Servicing should be carried out by qualified, skilled personnel only. For further information, please contact our Technical Support Lubricate the static O-rings with a thin layer of Molykote Representatives or our authorized dealers. -
Page 4: Troubleshooting
PS/79 and PS/80 TROUBLEShOOTING Table 3. Troubleshooting for Type PS/79 and PS/80 Pilots SYMPTOMS CaUSE aCTIONS Calibration spring (key 5) is too weak Check the springs catalog and replace it with a stronger one Desired setpoint is not reached Check pilot feed connections and proper gas flow feeding Leaks from pilot connections Filter (key 61) is clogged preventing proper through-flow of gas Clean or replace it... - Page 5 PS/79 and PS/80 Description Type PS/80 Plug Description 28* O-ring Elbow Fitting Pin screw Screw Seat Middle flange 31* O-ring Spring Type RE/79, RE/80, REO/79 and REO/80 Only 34* Pad holder unit Description Forked stem Plug Spacer Type PS/79-D and PS/80-D Only 37* O-ring 38* O-ring Description...
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Page 6: Schematic Assemblies
PS/79 and PS/80 SChEMaTIC aSSEMBLIES SECTION C-C TYPE PS/79 TYPES RE/79, RE/80, REO/79 aND REO/80 DETaIL SECTION B-B 41 42 62 64 SECTION a-a Table 4. Type PS/79 and PS/80 Pilots Connections CODE CONNECTIONS Upstream of the regulator To the regulator (loading pressure) Downstream or safe area Downstream of the regulator LM/1346... - Page 7 PS/79 and PS/80 TYPES REO/79 aND REO/80 TYPES PSO/79 aND PSO/80 TYPE PS/79-aP TYPE PS/80-aP TYPES PS/79-D aND PS/80-D TYPE PS/80 LM/1346 Figure 3. Type PS/79 and PS/80 Series Detailed Pilots Assemblies (continued)
- Page 8 For further information visit: www.emersonprocess.com/regulators The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Tartarini is a mark of O.M.T. Officina Meccanica Tartarini s.r.l., a business of Emerson Process Management.