Flowserve J Series Ball Valve - Manual

McCANNA/MARPAC Valves
FCD MMAIM2012-00
3" - 10" JRP1/JRP3 Flanged One-piece Ball Valves
Installation, Operation and Maintenance Instructions
CAUTION: Flowserve recommends that all product which must be
stored prior to installation be stored indoors, in an environment
suitable for human occupancy. Do not store product in areas where
exposure to: relative humidity above 85%, acid or alkali fumes,
radiation above normal background, ultraviolet light, or
temperatures above 120°F or below 40°F may occur. Do not store
within 50 feet of any source of ozone.
A. INSTALLATION
1. Standard valves may be installed for flow or vacuum in either
direction. Use care to exclude pipe sealants from valve cavity.
2. When installing, use standard gaskets suitable for the specific
service. Tighten flange bolts or studs evenly.
B. OPERATION
1. The operation consists of turning the handle and/or stem 1 /
4
turn
clockwise to close, and 1 /
4
turn counterclockwise to open. When
stop plate pointer and/or stem groove is in line with the pipeline,
the valve is open. These valves may also be automated.
2. These valves will provide bubble-tight shutoff when used in
accordance with Flowserve’s published pressure/temperature
chart.
3. It is not good practice to leave a ball valve partially open (throttling
operation) without knowledge of the pressure drop and flow at that
position. These conditions should be checked with Flowserve.
4. Media which can solidify, crystallize or polymerize should not be
allowed to stand in ball valve cavities.
5. Torque Requirements: Operating torque requirements will vary
depending on the length of time between cycles, line pressure,
type of valve seats and the media in the system. For a detailed
analysis of valve torque requirements, see McCANNA/MARPAC’s
Actuator Sizing Manual.
NOTE: Media which contain fine powders (25 microns or less) will
significantly raise ball valve torque requirements.
C. MAINTENANCE
If seepage is noted at stem, tighten retaining nut 1 /
6
turn at a time until
seepage stops.
CAUTION: Excessive tightening causes higher torque and shorter
stem seal life.
D. REBUILDING
a WARNING: BALL VALVES CAN TRAP PRESSURIZED FLUIDS IN
BALL CAVITY WHEN CLOSED.
If the valve has been used to control hazardous media, it must be
decontaminated before disassembly. It is recommended that the
following steps are taken for safe removal and disassembly:
• Relieve the line pressure. Operate the valve prior to attempting
removal from line.
• Place valve in half-open position and flush the line to remove any
hazardous material from valve body.
• All persons involved in the removal and disassembly of the valve
should wear the proper protective clothing such as face shield,
gloves, apron, etc.
CAUTION: If the seats and seals installed differ from those removed,
the valve nameplate must be replaced or remarked to indicate the
altered materials and ratings or valve tagged to so indicate.
NOTE: JRP1/JRP3 Revision OF valves do not have retaining screws.
Consult your distributor or Flowserve for end plug removal tools to
facilitate removal of screwed ring insert retainer.