Groth 2100 - Manual (Page 2)

1
IOM 2100.0
February 2005
TABLE OF CONTENTS
DESCRIPTION PAGE
Introduction
Emergency Valve Design & Function
Safety Warnings
Shipping, Inspection and Storage
Installation
Routine Maintenance
Tools
Disassembly
Assembly
Troubleshooting Guide
Certified Drawing Bill of Materials
How to Order
Product Limited Warranty
1
2
3
3
3 - 4
4
5
5
5
6
7 - 8
9
9
LIST OF FIGURES
1. Tank Installation - Safety Equip.
2. 2100 Certified Drawing
2
7
LIST OF TABLES
1. Body Flange Gasket Dimensions
2. Flange Bolt Torque
3. Troubleshooting Guide
4. O-Rings - 2100 Cover (Pressure)
5. Abbreviations
6. Pressure Spring - Set Ranges
7. Bill of Material (C-91768 Drawing)
4
4
6
6
6
7
8
INTRODUCTION
Pressure relief valves are used on liquid storage
tanks and other process vessels or systems to
prevent structural damage due to excess
internal pressure.
Storage tanks are pressurized when liquid is
pumped in, compressing the existing vapor or
when increasing temperature causes increased
evaporation or expansion of existing vapor. To
prevent damage, vapor must be allowed to
escape or enter the tank at a specified pressure
condition. The volume rate of venting depends
upon the tank size, volatility of the contents, the
pumping rate and the temperature. See API
Standard 2000 for the procedures to determine
venting requirements.
The 2100 Spring Loaded Emergency Relief
Valve provides pressure relief. Emergency
pressure relief provides protection for fire
exposure and/or failure of the inert gas
blanketing system. The valves can be set for
pressure relief in the range of 1 - 15 PSIG.
High operating pressures reduce evaporation
and total venting volume, thereby reducing
product loss and the cost of processing
emissions.
All valves must be carefully maintained by a
qualified valve technician. They should only be
assembled under clean conditions, preferably in
a service shop environment. Carefully read and
understand this manual before attempting to
repair a 2100 Emergency Pressure Relief Valve.