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Section 2: Introduction
April 2022
Section 2: Introduction
2.1
General Service Information
This Installation, Operation and Maintenance (IOM) manual is for Bettis™ GVO Series
Hydraulic Spring-Return Valve Operator (type SR or FS). Failure to comply with installation,
operation, and maintenance instructions will void the warranty and may result in severe
injury and/or property damage.
2.2
Definition of Terms
The abbreviations included in this IOM manual are listed in Table 1.
Table 1.
Term
IOM
GVO
HP
SR
ES
ESD
ID
OD
BCD
MOT
MVT
MAWP
WARNING
!
If not observed, user incurs a high risk of severe damage to operator and/or fatal injury
to personnel.
CAUTION
!
If not observed, user may incur damage to operator and/or injury to personnel.
NOTE:
Advisory and information comments provided to assist maintenance personnel to carry out
maintenance procedures.
2
Definition of Terms
Definition
Installation, Operation and Maintenance
Gate Valve Operator Series
High Pressure Hydraulic
Spring Stroke – Drive Rod (or Piston Rod) in Extension
Spring Stroke – Drive Rod (or Piston Rod) in Retraction
Emergency Shutdown
Inside Diameter (in.)
Outside Diameter (in.)
Bolt Circle Diameter
Maximum Operator Travel
Maximum Valve Stem Travel
Maximum Allowable Working Pressure
Installation, Operation and Maintenance Manual
E-90090007 Rev. 0
Introduction
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