Meyer C Series, Manual, Page: 2 / 20

TABLE OF CONTENTS
SafetyPrecautions ....................................................................................... 2
Receiving & Storage .................................................................................... 7
Product Description .................................................................................... 8
Installation ................................................................................................. 11
Operation ................................................................................................... 13
Lubrication/Service .................................................................................... 15
SECTION I
SAFETY PRECAUTIONS
TO THE OWNER, AND INSTALLATION, OPERATION AND MAINTENANCE PERSONNEL
The safety of the operator and those people that may come into contact with the Double Flapgate
Airlock Valves (“Equipment”, “Double Flapgate”, “Valve”) is of great importance to Wm. W. Meyer &
Sons, Inc (“Meyer”, “Factory”). In some applications, Single Flapgates are used. The hazards and
warnings in this document apply equally to Single, Double and Triple Flapgates. The decals, shields,
guards or other protective features furnished or recommended for this machine are there for your
protection. BEFORE attempting to install, operate or perform maintenance on this
e
quipment READ
carefully and UNDERSTAND all safety instructions contained in this Installation, Operation, and
Maintenance Instructions. Failure to do so could result in serious injury or death.
Equipment owner responsibilities
Equipment owners are responsible for understanding the contents of this document and compliance
with applicable government laws and regulations and appropriate industry standards. In addition,
owners must create a control of hazardous energy procedure for the complete system that
incorporates this Double Flapgate Airlock Valve and ensure that workers are properly trained to follow
it. (See information regarding the vented isolation valve for air-operated units on page 5.) Appropriate
plant safety and
e
quipment training is the responsibility of the plant owner. This Manual is intended
to assist the owner in the training process. The operation, installation and maintenance of this
e
quipment should be restricted based on the following:
• Installation and maintenance of
e
quipment must be performed by qualified mechanics/
millwrights/maintenance personnel that are familiar with the relevant contents of this manual.
• Installation of any electrical
e
quipment must be completed by qualified electricians,
in compliance with applicable codes and ordinances.
Because Meyer is not always aware of the application and does not always have access to the
installation, your participation in the safe installation, operation and maintenance of your Double
Flapgate is critical. The owner/operator is responsible for any hazards related to the material that is
being processed through the equipment. If you have any safety or operational questions pertaining
to the design or application of the Double Flapgate Airlock Valve we encourage you to contact the
Factory at (800) 963-4458. Consult the Factory for the availability of manuals in other languages.
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SECTION VI
LUBRICATION/SERVICE
The internals of this equipment has parts that can crush and cut. Follow Lockout/
Tagout information in the "IMPORTANT SAFETY INFORMATION" section before service or
maintenance. Failure to do so will lead to serious injury or death if a body part contacts a moving
internal part. In addition, the equipment and parts are heavy - use safe handling and rigging methods.
Bearings should be grease lubricated at least once per month. In extremely dusty or high-temperature
applications, lubrication may be required more often. Removal of guards may be required on some
units to access the bearing’s grease fitting depending on the model and size. Standard bearings
require NLGI #2 grease. High-temperature bearings use DC-44 grease. Extremely high-temperature
applications use a graphite bushing that does not require grease.
1. Wipe off the grease fitting before adding grease.
2. Add grease into the bearing until grease is present at the bearing seal.
3. If contaminants are present in the grease, slowly add more grease until the discharge is clean.
Standard packing (HPSC & HPTC) is graphite impregnated aramid fiber (up to 450˚F) and for high-
temperature applications, a graphite/PTFE packing is used. The packing nut can be adjusted as
necessary to maintain the seal around the shaft. The packing should be replaced periodically to
maintain the shaft seal. Frequency depends on application and use.
The flange bearing seal on the LPTF valves seal the shaft opening and cannot be replaced separately
from the bearing.
Be cause of the wide variety of material-handling systems for which this Equipment must be tailored
,
many considerations determine the proper size, design, materials of construction, operating
speed, type of driver, etc. A complete description of every product is kept on file with the Factory.
These specifications can be referenced by supplying the serial number to your local Meyer
Representative.
NOTE : To aid us in providing you with a special service, application assistance or for help with spare
part requirements, please record the following:
Type/Size
Serial No.
Date of Installation
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