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Table of Contents
SERIES D FLEXGATE
SLURRY KNIFE GATE VALVE
Installation, Operation and Maintenance Manual
IMPORTANT
Please take a moment to review this manual. Before performing any maintenance on the
valve be sure the pipeline has been de-pressurized. The improper installation or use of this
product may result in personal injury, product failure, or reduced product life. Red Valve Company,
Inc. can accept NO liability resulting from the improper use or installation of this product. If you
have any questions or problems, please call the customer service department at (412) 279-0044.
We appreciate your comments. Thank you for choosing Red Valve.
The Red Valve Series D Flexgate Slurry
Knife Gate Valve is a 100% full bore, truly
bi-directional valve designed for tough slurry
applications. The Flexgate features heavy-
duty elastomer seat cartridges which provide
droptight closure and are replaced WITHOUT
ANY VALVE DISASSEMBLY, for ease of
maintenance.
The Series D Flexgate is designed to meet
MSS-SP81 face-to-face dimensions, so that
it can be readily placed in service replacing
conventional knife-gate products.
Flush ports are provided to allow the valve to
be flushed with water and/or air. With a variety
of actuators available, limit switches, and other
options, the Red Valve Series D Flexgate can
be built to fit your special applications.
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Summary of Contents for Red Valve Flexgate D series
- Page 1 The improper installation or use of this product may result in personal injury, product failure, or reduced product life. Red Valve Company, Inc. can accept NO liability resulting from the improper use or installation of this product. If you have any questions or problems, please call the customer service department at (412) 279-0044.
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Page 2: Installation
OD by .12" for sizes 12" and smaller, or .25" for sizes increments of 50% of tabulated values. Improper or uneven 14" and larger. Consult Red Valve if the flange ID exceeds torquing of flange bolts can cause premature seat cartridge these dimensions. -
Page 3: Operation
All valve accessories and instrumentation are pressed state. To avoid risk of serious injury, never attempt to properly set and calibrated at the Red Valve factory. disassemble fail-safe cylinders, NEVER cut, bend, or alter the protruding threads at the top of the cylinder. Fail-safe cylinders... -
Page 4: Maintenance
VALVE DOES NOT CHECK FLOW WHEN CLOSED: • Check for obstruction in line. • Inspect gate and seat cartridges for build-up, wear, or damage. RESILIENT SEAT CARTRIDGES ARE SOFTENED OR DETERIORATED: • Consult Red Valve for chemical compatability of resilient seat cartridges. - Page 5 Red Valve guarantee a minimum length of service, or that the product shall be fit for any particular service. Failure of purchaser to give prompt written notice D IOM 10/18 Red Valve Company, Inc. • 600 N. Bell Avenue, Carnegie, PA 15106 • 412 279-0044 • Fax 412 279-7878 • www.redvalve.com...
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