Emerson BETTIS 23 SH - Page 39

Installation, Operation and Maintenance Manual
DOC.IOM.RG.US Rev. 11 November 2021
35
Section 15: Drawings and Schematics
Drawings and Schematics
Field Service Request
To assist in providing service/assistance with your equipment, the following information is requested:
A. Contact/Responsible
Name Company
Position Site/Project Identication
Phone Fax Pager
B. Valve Operator Rotary  Linear/Gate 
Model Serial Number
Application:  Mainline Block/Linebreak ESD
 Mainline Valve Station Bypass
 Unit Suction/Discharge Block
 Meter Station Shut In/H
2
S Shut In
 PIG Launcher/Receiver

C. Problem Identied During:
 Installation  Commissioning  Operation  Maintenance
D. Problem Identied as:
(If operator/valve travel is open/closed fully or partially, how far?)
E. Checklist for often-overlooked causes
 Tank uid levels are correct for operation
 Power gas of sufcient pressure and ow is present
 ESD/Linebreak system is reset
 Operator travels fully and smoothly
 Speed controls are more than 25% open
 Correctly mounted on valve, ie. valve open/operator open/stops sets
 Exhausts not restricted or vented to header system with backpressure
 All relays and solenoids are switching
 Conrm if signals are being applied and removed as required
F. Identify Component(s) that may cause the problem
List any adjustments that were made by others
G. Conditions under which problem occurs
Flowline Operator Gas Supply
Pipeline Pressure psi (kPa) From Pipeline psi (kPa)
Differential Across Valve psi (kPa) From Fuel Gas Line psi (kPa)
Pipeline Rate of Drop psi (kPa)/minute
Other/Weather
H. Requirements