Flowserve J Series Ball Valve User Manual

2" jrp1/jrp3 one-piece, flanged ball valves, Installation, Operation

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McCANNA/MARPAC Valves

FCD MMAIM2011-00

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" - 2" JRP1/JRP3 One-piece, Flanged 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.

INSTALLATION

Valve may be installed for flow or vacuum in either direction. Use care
to exclude pipe sealants from the valve cavity.

When installing, use standard gaskets suitable for the specific service.
Tighten flange bolts or studs evenly.

OPERATION

The operation consists of turning the handle and/or stem quarter-turn
clockwise to close. The valve is open when the handle and/or stem
flats are in-line with the pipeline. These valves may also be automated.

These valves will provide bubble-tight shutoff when used in
accordance with the Flowserve published pressure/temperature chart.

It is not good practice to leave ball valves partially open (throttling
operation) without knowledge of the pressure drop and flow at
that position.

Media which can solidify, crystallize or polymerize should not be
allowed to stand in ball cavities.

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.

NOTE

: Media which contain fine powders (25 microns or less) will

significantly raise ball valve torque requirements.

MAINTENANCE

If seepage is noted at stem, tighten retaining nut per the following steps.

CAUTION: For maximum stem seal life, proper stem adjustment
procedure must be followed.

Excessive tightening causes higher torque and shorter stem seal life.

For Valves with Two Stem Nuts and a Lockwasher
(with or without handle):

Tighten retaining nut (lower nut) until Belleville washers are flat, the
nut will “bottom”.

Back off retaining nut

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turn.

Tighten handle nut securely to lock retaining nut in place. (On some
automated valves, two retaining nuts are used with a lockwasher in
between. Hold the bottom nut securely with a wrench while tightening
the top nut to lock the two nuts in place.)

For Valves with Self-Locking Stem Nut (and four Belleville washers):

Tighten self-locking stem nut until Belleville washers are flat, the nut
will “bottom”.

Back off nut

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turn.

CAUTION: The self-locking stem nut is difficult to tighten, and must
fully flatten Belleville washers before backing off.

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