Related Manuals for Bray 765 Series
Summary of Contents for Bray 765 Series
- Page 1 SERIES 765 BIDIRECTIONAL SLURRY VALVES Operation, and Maintenance Manual BRAY.COM THE HIGH PERFORMANCE COMPANY...
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Page 2: Table Of Contents
Valve Maintenance Lubrication Secondary Seal Replacement Manual Valves Cylinder-Operated Valves Stroke Length Tables Seat Replacement - No Retainer Actuator Maintenance Spare Parts Troubleshooting For information on this product and other Bray products please visit us at our web page - bray.com. -
Page 3: Definition Of Terms
Series 765 Slurry Operation and Maintenance Manual Definition of Terms - Safety Instructions READ AND FOLLOW THESE INSTRUCTIONS SAVE THESE INSTRUCTIONS DEFINITION OF TERMS Indicates a potentially hazardous situation which, if not avoided, could result in death or WARNING serious injury Indicates a potentially hazardous situation which, if not avoided, may result in minor or CAUTION moderate injury... -
Page 4: Introduction
Observe all applicable safety regulations for valves installed in potentially explosive (hazardous) locations. INTRODUCTION The Bray Slurry Series 765 provides repeatable bidirectional shutoff in a rugged, cast body Additional information about Slurry Series valves – including application data, engineering specifications, and actuator... -
Page 5: Storage
Series 765 Slurry Operation and Maintenance Manual STORAGE NOTICE The packaging is designed to protect the valve only during shipping. If you are not installing the valve immediately after delivery, then you must store it according to these requirements. Failure to follow these procedures could affect product warranty. SHORT-TERM STORAGE Short-term storage is defined as storage of valves to allow for project construction and will be installed within a relatively short amount of time (typically one to three months) During short-term storage, the following is required:... -
Page 6: Installation
Series 765 Slurry Operation and Maintenance Manual INSTALLATION • Valves can be mounted with flow in both directions • Install the valve between flanges using fasteners CAUTION Support should be used for valves size 8” and over when installed in vertical pipe Failure to do so can result in improper valve operation and/or valve failure COMMISSIONING GUIDELINES Cylinder Operated Valves... -
Page 7: Secondary Seal Replacement
Series 765 Slurry Operation and Maintenance Manual Secondary Seal Replacement Relieve the line pressure Fully close the valve Ensure the line is empty, and flush if necessary Manual Valves 1. Disconnect the stem from the gate by removing the clevis bolt and nuts 2. -
Page 8: Stroke Length Tables
Series 765 Slurry Operation and Maintenance Manual Series 765 Valve Size A (mm) B (mm) Stroke Length CAUTION Relieve line pressure before attempting to remove the valve from the line to avoid personnel injury and/or equipment damage If the valve has a pneumatic actuator, solenoid valve, limit switches, or other accessories, disconnect the electrical and pneumatic supply Seat Replacement Relieve the line pressure and close the valve Flush the line if necessary... -
Page 9: Actuator Maintenance
Pneumatic Cylinder The Bray pneumatic cylinder actuator is a low maintenance design and does not require routine maintenance It has an FRP tube which is lubricated for life with a special coating on the inside wall Filtered dry, instrument quality air (non-lubricated) - Page 10 Operation and Maintenance Manual Bray International, Inc. All statements, technical information, and recommendations in this bulletin are for general use only Consult Bray representatives 13333 Westland East Blvd or factory for the specific requirements and material selection Houston, Texas 77041 for your intended application The right to change or modify Tel: 281 894 5454 •...
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