Flowserve J Series Ball Valve User 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.

1. a. Disassembly of Valve:

1) Place valve in open position. Unscrew all flange bolts or
studs and nuts and remove valve from line.

2) With valve in closed position, remove end plug retaining
screws.

3) Remove end plug. If necessary, drive end plug from valve
using wooden drift applied to ball.

4) Remove body seal, ball, seats and seat back seals (if
any).

b. Removing Stem Assembly:

GENERAL NOTE: Due to different valve series and body styles,
one or two metal stem centering washers may be used and
the stem seal may be one-piece or three-piece.

1) Remove handle assembly (if any) by loosening handle
screw.

2) Remove retaining nut. Prevent stem from rotating by
holding stem with wrench.

3) Remove stop or valve stem spacer (actuated valves).
Remove and discard Belleville washer(s) (if any). Remove
and retain the follower.

4) Push stem into body cavity and remove. Remove stem
seal(s), stem seal protector (if any) and thrust bearing.
Remove and retain stem centering washer(s).

c. Visual Inspection:

1) The ball and the surfaces against which the seats and
seals are installed should be undamaged, clean and free
of pit marks and scratches. Light marring from the action
of the ball against the seats is normal and will not affect
the operation of the valve. Flaws which can be seen but
barely detected with finger tips are acceptable.

2) The stem and body surfaces that the thrust bearing and
stem seals contact, must be undamaged, clean and free
of pit marks and scratches.

d. Reassembly:

CAUTION: Care must be used when handling graphite stem
seals, thrust bearing, body seals and seat back seals.
These parts can be easily damaged by squeezing the O.D.
of the seal. Parts are to be handled on the flat surfaces
rather than the O.D. These parts will not work if they are
cracked or broken. Light flaking of the material is
acceptable. If resistance is encountered when installing
stem seals over the stem, use follower to gently push the
stem seal down.

1) Lightly lubricate the ball, seats, seat back seals (if used),
body seal, stem seal(s), stem seal protector (if any) and
thrust bearing with a lubricant compatible with media

being handled. White petroleum jelly is a good general
purpose lubricant.

2) To reassemble stem, reinstall stem centering washer(s)
into the recesses in the body. When only one washer is
used, it goes inside recess on top of the body and under
the stem seal(s). Place new thrust bearing onto stem and
insert through body cavity. The thrust bearing can be
distinguished from the stem seals by the darker color of
the 25% filled fluoropolymer used in the thrust bearing.
Assemble new stem seal(s) over the top of the stem and
down into the recess in the top of the body. The follower
is installed on top of the stem seal(s). For valves with
graphite stem seal(s), the stem seal is metallic silver gray
and thicker than the thrust bearing. A Belleville washer is
also added, concave side up over follower (3” - 8” sizes
only). Place stop (or spacer) onto valve stem.

3) When stem assembly is complete, place retaining nut
onto stem. Using handle or wrench to prevent rotation,
tighten retaining nut to fully compress packing or fully
flatten Belleville(s), if used, then back off

1

/

6 turn.

Excessive tightening causes higher torque and shorter
stem seal life.

4) Insert far seat and seat back seal (if any) in body. Make
sure seat rests firmly on back surface of recess. If the
seat back seal is not correctly positioned it could be
damaged or cause the valve to leak.

5) With valve in closed position (stop plate pointer and/or
stem groove going across the pipeline), insert ball into
body so that stem slot engages tang on stem.

6) Install and make sure body seal rests squarely on seal
surface of body.

CAUTION: If the body seal is installed on the end plug,
it will be damaged. Insert seat and seat seal (if any) in
recess of end plug, and slide the end plug into the body
as far as it will go.

7) Secure end plug in place by threading in the end plug
retaining screws and tightening each one firmly. Proper
installation will allow no more than .010 protrusion of the
end plug beyond the valve body.

8) Replace handle assembly (wrench block and extension)
and tighten hex head screw (manual valves only).

9) Upon reinstallation of the valve in the line, retighten the
end plug retaining screws after the flange bolts are fully
torqued.

After the valve is assembled, it should be cycled a few
times to ensure that the valve operates smoothly with no
chattering of the ball. The normal operation is an initial
high torque to “break” from the closed position to a
smooth running lower torque mid-cycle, to a high torque
at the end of the 90° cycle or open position. The torque is
similar when closing.

2 3"-10" JRP1/JRP3 Flanged One-piece Ball Valves FCD MMAIM2012-00

Flow Control Division

McCANNA/MARPAC Valves