Emerson CASH VALVE C776 Installation And Operating Instructions

CASH VALVE™ TYPE C776 PRESSURE RELIEF VALVES FOR CRYOGENIC SERVICE
INSTALLATION AND OPERATING INSTRUCTIONS
Before installation, these instructions must be carefully read and understood.
WARNING
Failure to follow these instructions or to properly
install and maintain this equipment could result in
an explosion, fire and/or chemical contamination
causing property damage and personal injury
or death.
Cash Valve relief valves must be installed,
operated and maintained in accordance with
federal, state and local codes, rules and
regulations and Emerson Process Management
Regulator Technologies, Inc. instructions.
If a leak develops or if the outlet continually vents
gas, service to the unit may be required. Failure
to correct trouble could result in a hazardous
condition. Only a qualified person must install or
service the unit.
Installation, operation and maintenance
procedures performed by unqualified personnel
may result in improper adjustment and unsafe
operation. Either condition may result in
equipment damage or personal injury. Use
qualified personnel when installing, operating,
and maintaining the Type C776 Relief Valve.
CALIFORNIA PROPOSITION 65 WARNING
This product can expose you to chemicals
including lead, which is known to the State of
California to cause cancer, birth defects or other
reproductive harm. For more information, go to
www.P65Warnings.ca.gov.
INTRODUCTION
Scope of the Manual
This manual provides instructions for
the handling, installation, operation and
maintenance for the Type C776 Relief Valve.
Emerson.com
PRE-INSTALLATION
Verification of Model and Service Media/
Capacity/Temperature/Pressure Limits
(Reference attached Model Description/Guide.)
Verify the Model Number on the tag against
the Model Number of the order. Verify the
Service Media, Capacity, and Temperature
and Pressure Limits of the valve against
the application.
Please note the marked capacity is based on
Standard Temperature and Pressure conditions
and is valid only for the service media noted
on the catalog order guide. Adjustments to
the capacity must be performed for different
temperatures or service media, and are the
responsibility of the end user to determine.
HANDLING
This pressure relief valve is designed to protect
equipment from overpressure. The valve
should be handled with care, not subjected to
heavy shock loads, and protected to prevent
contamination from getting inside. It should
be installed correctly per A.S.M.E. Boiler &
Pressure Vessel Code requirements, where
applicable. Failure to do so could result in
property damage or serious injury to personnel.
When hoisting the valve into position for
installation, care should be exercised so that
lifting straps do not compromise the integrity
of the valve.
© 2019 Emerson. All rights reserved.
VCIOM-13643-EN 22/01