3" - 10" JRP1/JRP3 Flanged One-piece Ball Valves - Flowserve ...

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 

Flow Control Division 

McCANNA/MARPAC Valves 

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

3"–10" 150# and 300# Flanged Construction 



NOTE: 

FLANGED VALVE IS SHOWN. 

*THIS WASHER IS NOT USED ON ALL VALVE STYLES, USE EXISTING WASHER WHEN PRESENT. 

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



Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function 

safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial 

service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore 

assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should read and understand the Installation 

Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection with the specific application. 

While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as a guarantee of 

satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve 

is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning 

these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices. 

For more information about Flowserve Corporation, visit www.flowserve.com or call USA 1-800-225-6989. 

FLOWSERVE CORPORATION 

FLOW CONTROL DIVISION 

1978 Foreman Drive 

Cookeville, Tennessee 38501 USA 

Phone: 931 432 4021 

Facsimile: 931 432 3105 

www.flowserve.com 

© 2004 Flowserve Corporation, Irving, Texas, USA. Flowserve and McCANNA/MARPAC are registered trademarks of Flowserve Corporation. FCD MMAIM2012-00 Printed in USA.

3" - 10" JRP1/JRP3 Flanged One-piece Ball Valves - Flowserve ...

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