In-Line Flow Products FIGURE 700 Installation, Operation And Maintenance Manual
IN-LINE FIGURE 700 QUICK OPENING CLOSURE
INSTALLATION, OPERATIONS AND MAINTENANCE MANUAL
SECTION ONE: SAFETY INFORMATION
SECTION TWO: INSTALLATION INSTRUCTIONS
SECTION THREE: OPERATION INSTRUCTIONS
SECTION FOUR: MAINTENANCE INSTRUCTIONS
SECTION FIVE: STORAGE INSTRUCTIONS
IMPORTANT
THIS DOCUMENT HAS BEEN MADE AVAILABLE TO PROVIDE ADDITIONAL
INFORMATION FOR ANY IN-HOUSE TRAINING PROGRAM ON THE INSTALLATION,
OPERATION AND MAINTENANCE OF THE IN-LINE QUICK OPENING CLOSURE AND IS
NOT INTENDED TO SUPERSEDE THE SAFETY POLICIES OR PROCEDURES OF THE ENDUSER.
ALL SUPERVISORS, OPERATORS, WELDERS AND OTHER FIELD PERSONNEL THAT ARE
DIRECTLY INVOLVED IN THE INSTALLATION, OPERATION AND MAINTENANCE OF THE
IN-LINE QUICK OPENING CLOSURE SHOULD RECEIVE AND REVIEW THIS INFORMATION
AS PART OF ANY TRAINING PRIOR TO THE INSTALLATION AND OPERATION OF THESE
DEVICES.
FAILURE TO FOLLOW SAFETY GUIDELINES OR PROCEDURES
MAY RESULT IN SEVERE INJURY OR DEATH.
ADDITIONAL COPIES OF THIS MANUAL MAY BE OBTAINED AT NO CHARGE BY
CONTACTING:
IN-LINE FLOW PRODUCTS LIMITED
TEL: (780) 490-5337
FAX: (780) 490-5314
In-Line Flow Products Limited Revision 1 03/2016
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Printed in Canada
SECTION ONE
SAFETY INFORMATION
GENERAL
Operation of any access device is one of the most dangerous procedures faced by plant
personnel and it is very important to be aware of the potential for serious injury or death that may
result from unsafe practices or unseen hazards.
INTERNAL PRESSURE
Prior to operating any Closure, be certain that all internal system pressure has been fully
equalized with the external pressure in a safe, controlled manner.
Any residual internal pressure can cause severe injury or death if the Closure is operated
in this state. Beware of the dangers of lower pressures as they can be equally as fatal as
higher pressures, for example an NPS8 Closure with just 10 psig residual internal
pressure may suddenly expend a force of 500 lbs. to free the Closure Cap.
The Pressure Alert Fitting is designed to warn the Operator of residual internal pressure
and is not intended to be used as a system bleed. If pressure is released through the
Fitting as it is opened, DO NOT OPERATE THE CLOSURE. Close the Fitting and
completely bleed the system pressure in a safe manner.
The Pressure Alert Fitting is standard on all sizes NPS6 and larger. The Fitting is
optional on smaller sizes.
Since Closures are generally used in clean-out and otherwise dirty applications, pressure
gages and warning devices may become plugged-off or fouled and provide false
pressure situation. Even if these devices indicate a safe state continue to use extreme
caution when operating the Closure.
OPERATOR POSITION
Prior to operating any Closure, be certain the Operator is situated in a safe position.
As a rule-of-thumb, the Operator should stand on the side of the Closure opposite the
hinge. If in the event residual pressure or a projectile are present, the Cap will swing
away from the Operator.
Whether the Closure Cap is in the opened or closed position, avoid looking directly into or
standing in front of the opened bore or unopened Cap. Trapped objects, such as pigs or
ice dams, may be suddenly released and be violently expelled out of the bore or against
an unopened Cap, damaging it or forcing it clear given sufficient force and may result in
severe injury or death.
Avoid installing the Closure where the bore is directed towards buildings and equipment
or where personnel or the public have access.
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OPERATION
The In-Line Closure must be operated in a manner to limited physical damage to the unit
and maintain its integrity.
When opening or closing the Closure, DO NOT strike the Closure Cap with any hard-
faced tools. This will severely damage the Cap by deforming the lugs and possibly crack
or create a system of micro-fractures within the microstructure of the Cap material that
may result in catastrophic failure.
The In-Line Closure seals by means of a pressure energized O-Ring that is compressed
only until metal-to-metal contact is achieved between the Cap and Weld Hub. Tightening
beyond this point will not create a better seal and may damage the Closure. DO NOT
OVERTIGHTEN.
Spanner wrenches for all Closures are available and are extremely effective for safely
obtaining a tight seal.
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Printed in Canada
SECTION TWO
INSTALLATION
IMPORTANT
OPERATING ISSUES HAVE OCCURRED WHEN CLOSURES ARE ATTACHED PRIOR TO
THE INSTALLATION OF WELDED ATTACHMENTS OR BOLT-ON EQUIPMENT IN CLOSE
PROXIMITY TO THE CLOSURE. THE EXTERNAL FORCES AND DISTORSION CREATED
BY THESE ITEMS HAVE BEEN SHOWN TO TRANSLATE TO THE CLOSURE HUB
RESULTING IN AN OUT-OF-ROUND CONDITION, CREATING SEALING AND CLOSURE
MAKE-UP PROBLEMS. FOR BEST PERFORMANCE, ALL WELDED ATTACHMENTS AND
BOLT-ON EQUIPMENT WITHIN TEN (10) PIPE DIAMETERS OF THE CLOSURE SHOULD BE
FULLY INSTALLED PRIOR TO INSTALLATION OF THE CLOSURE WELD HUB.
Preliminary
1. All welding procedures, welding operations and welder performance qualifications should be
controlled to ensure compliance with the Construction Code and the Regulatory Authority in
the Jurisdiction of installation. All welding must be performed in accordance with these
procedures by welders qualified with those procedures.
2. The material specification and grade are permanently marked on all Weld Hubs. Check all
markings to ensure proper material is as ordered and welding protocols are followed.
3. Do not drop the Closure and especially avoid impact on the Cap Pin. The Cap Pin runs
concentric with the Closure Threads and any bending of the Cap Pin may result in the
Closure being inoperable or may damage the Closure threads during make-up. If bending
occurs, do not operate the Closure any further and return the Closure to the factory for
adjustment.
4. When multiple installations are occurring simultaneously, place a unique mark on each Cap
and Weld Hub prior to disassembly to prevent mixing of assemblies.
5. Where required, use lifting equipment of sufficient size and stability when performing
installation and ensure operation by trained personnel.
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Disassembly
Horizontal and Vertical Hinge Closures (NPS2 to NPS14)
1. With the Closure placed on the ground on the Weld Hub, remove the stem from the
Pressure Alert Fitting and completely unscrew the Cap. Carefully swing the Cap off of
the Hub and slide the Hinge Arm out of the Hinge. Store the Cap/Hinge assembly in a
clean location or cover to minimize contamination.
2. Carefully remove the O-ring seal from the Weld Hub. If the seal is damaged,
replacement seals can be obtained from In-Line or from any local O-ring supplier. The Oring number is stamped directly on the Closure Weld Hub.
3. Remove the Pressure Alert Fitting from the Weld Hub and store with the Cap/Hinge
assembly.
Horizontal Hinge Closures (NPS16 and Larger)
1. With the Closure placed on the ground on the Weld Hub, remove the stem from the
Pressure Alert Fitting.
2. On the Trolley Bolt, place a mark with a paint maker on the Bolt and Nut below the
Suspension Arm to ensure the Cap remains at the factory set height after assembly.
3. Remove the Lock Collar from the Cap Pin and slide the Suspension Arm off of the Cap
Pin. Lift the Suspension Arm and Trolley off of the Davit Arm. CAUTION: Have another
worker support the Davit Arm while removing the Suspension Arm /Trolley to prevent the
Davit Arm from swinging and causing injury.
4. Remove the Davit Arm from the Hinge. Remove all bearings (NPS26 and larger).
5. Insert an Eyebolt in the Cap Pin and use a lift to support the weight of the Closure – DO
NOT lift completely off the ground. Only use a Lifting Hook with a swivel so the Eyebolt
does not unscrew from the Cap Pin while the Cap is rotated. Alternatively, use a set of
hooks through the three Lugs attached to the Closure Cap to support the weight during
removal.
6. Using the Ratchet Tool, loosen the Cap approximately 1/8 turn until the Cap can rotate by
hand.
7. While carefully countering the weight of the Cap with the lift, unscrew the Cap from the
Weld Hub. Store the Cap in a clean location or cover to minimize contamination.
8. Carefully remove the O-ring seal from the Weld Hub. If the seal is damaged,
replacement seals can be obtained from In-Line or from any local O-ring supplier. The Oring number is stamped directly on the Closure Weld Hub.
9. Remove the Pressure Alert Fitting from the Weld Hub and store with the Cap/Hinge
assembly.
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