Worcester Control Valves
CAUTION: Flowserve recommends that all product that 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.
Worcester’s H71 valves will operate to 6000 psi at normal
ambient temperature (-40° to 185°F, -20° for carbon steel). If
used on liquid medias at these pressures, caution must be
practiced. Most liquid medias will flash or cavitate severely
when the pressure drop exceeds approximately 40% of the
system pressure. Severe valve and valve seat damage can
result.
Free discharge at these pressures is not recommended.
INSTALLATION
1. H71 valves may be installed for flow in either direction. Use care
to exclude pipe sealants from the valve cavity. Valves with
upstream relief hole in ball (V3 option) are one-way valves.
2. Weld End Valves:
NOTE: Prior to welding, THOROUGHLY CLEAN ALL JOINT SURFACES
to prevent contamination.
For all weld valves (SW, BW, End Connections):
a. Tack weld valve in place.
b. With valve open, remove all but one body bolt, loosen it and
swing out body. Close valve, remove ball, seats and body
seals. Return body to its original position and temporarily
secure it with two body bolts diagonally opposite each other.
c. Weld valve in line (when gas welding or brazing, do not play
flame on valve body).
d. Allow valve to cool, lubricate ball and seat with Lubriplate
930AA and reassemble valve.
e. Tighten and torque body bolts evenly and diagonally opposite
each other, alternating in a criss-cross pattern. Use torque
figures shown.
CARBON STEEL STAINLESS STEEL
BOLTS - B7 BOLTS - B8 CL2/2B
Bolt Dia. In.-Lbs. Ft.-Lbs. Bolt Dia. In.-Lbs. Ft.-Lbs.
3/8" 480-540 40-45 3/8" 420-480 35-40
7/16" 680-720 55-60 7/16" 600-680 50-55
1/2" 984-1044 82-87 1/2" 960-984 80-82
5/8" 2100-2136 175-178 5/8" 1980-2040 165-170
3/4" 2940-3000 245-250 3/4" 2520-2580 210-215
NOTE: Stainless steel bolts and nuts are generally used in all three-
piece valves with stainless steel bodies.
f. Cycle the valve three times to break in the seats.
OPERATION
1. The operation consists of turning the handle and/or stem a
quarter-turn clockwise to close and a quarter-turn counterclockwise to open. When the handle and/or stem flats are in line
with the pipeline, the valve is open.
2. These valves will provide bubble-tight shut-off when used in
accordance with Worcester’s published pressure/temperature
chart.
3. It is not good practice to leave a ball valve partly open (throttling
operation) without knowledge of the pressure drop and flow at
that position.
4. As shipped from the factory, all valves may contain a siliconebased lubricant (H71 valves also contain a lithium based grease).
This is for break-in purposes, and may be removed if it is
objectionable for a particular application by disassembling and
solvent washing. Lacquer thinner will remove the lubricant.
5. Media which can solidify, crystallize or polymerize should not be
allowed to stand in ball valve cavities.
14932-D
High Pressure Series H71
(C0214, C0222, C0224) Ball Valves
Installation, Operation and Maintenance Instructions
6. 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 the Worcester Actuator
Sizing Manual.
MAINTENANCE
Tighten retaining nut if seepage is noted at stem.
CAUTION: For maximum stem seal life, proper stem adjustment
procedure must be followed. Excessive tightening causes
higher torque and shorter stem seal life.
For 1/2"–1 1/2" Valves with two Stem Nuts and a Lockwasher (Manual
Valves):
1. Tighten retaining nut (lower nut) until Belleville washers are flat,
the nut will “bottom”.
2. Back off retaining nut 1/6 turn.
3. Tighten top nut securely to lock retaining nut in place.
For 1/2"–1 1/2" Valves with Self-Locking Stem Nut and four Belleville
washers (Automated Valves):
1. Tighten self-locking stem nut until Belleville washers are flat, the
nut will “bottom”.
2. Back off 1/3 turn.
CAUTION: The self-locking stem nut is difficult to tighten, and
must fully flatten Belleville washers before backing off.
For 2" Valves
1. Tighten retaining nut 1/6 turn at a time until seepage stops.
REBUILDING
a WARNING: Ball valves can trap high-pressure 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 be 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. (See Caution, page 1,
paragraph 2.)
• All persons involved in the removal and disassembly of the valve
should wear the proper protective clothing such as face shield,
gloves, apron, etc.
1. A standard repair kit may be ordered for these valves, consisting
of seats and body seals, two or four Belleville washers, stem
seals, and thrust bearings. Specify the material of seats and body
seals, size, Series and R number (revision number) of valve or for
non-standard valve, the “P”, “T”, “C”, or similar number, as found
on the valve nameplate or on the actuator bracket nameplate. If
valve body is stainless steel, place a “6” after valve size in repair
kit ordering code.
To Order:
Valve Size/HRK71/Material/Rev. Number or P, T, C, etc. Number
Example: 1" 6 HRK71 XV C0222
CAUTION: If the seats and seals installed differ from those
removed, the valve nameplate or stop must be replaced or
remarked to indicate the altered materials and ratings, or valve
tagged to so indicate.
2. To replace seats and seals:
a. Place valve in open position, remove all but one of the body
nuts and bolts, loosen remaining one, swing out center
section from between pipe ends with valve open.
b. With valve in closed position, remove old seats, body seals,
and ball.
c. For 1/2"–1" valves remove handle nut, lockwasher, one-piece
handle and stop (if manual valve). (This step is not applicable
to valves with self-locking stem nut.)
For 1-1/2" valves only, remove handle nut, lockwasher, onepiece wrench/stop and extension (if manual valve). This step
is not applicable to valves with self-locking stem nut.
For 2" manual valves only, remove handle assembly (wrench
block and extension), by removing hex head screw.
d. Using handle or a wrench to prevent stem from turning,
remove retaining or self-locking stem nut, stop (2" manual
valve only, or stem spacer if automated valve), Belleville
washers (1/2"–1 1/2" only), and follower from stem. Remove
stem through body cavity.
e. Remove thrust bearing(s) from body or stem, stem seals, and
stem seal protector from recess in top of body.
f. Clean all sealing surfaces of valve including the ball.
NOTE: 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 fingertips are acceptable. The stem
and body surfaces that the thrust bearings and stem seals contact
must be undamaged, clean, and free from pit marks and scratches.
g. Lightly lubricate the ball, seats, body seals, stem seals, stem
seal protector, and thrust bearings with a lubricant compatible
Flow Control Division
Worcester Control Valves
2 14932-D
Flow Control Division
Worcester Control Valves
with the media being handled. White petroleum jelly is a good
general purpose lubricant.
h. For stem area rebuilding, refer to the illustrations on the
following page.
Order of Assembly:
Place new thrust bearing(s) on stem and insert assembly through
body cavity. Place new stem seals, stem seal protector and the
follower in position. Peek thrust bearing and stem seal protectors are
placed outside of seals and bearings. The seals/bearings must contact
the body.
Stem seals, stem seal protectors and thrust bearings that are the
same size and color are interchangeable.
i. For 1/2"–1 1/2" manual valves, place two new Belleville
washers in position with the larger diameter sides touching
each other. For automated valves with single self-locking stem
nut, place four new Belleville washers in position (two pairs of
washers with larger diameter sides touching each other).
j. For 1/2"–1 1/2" valves, place retaining or self-locking stem nut
on stem and using handle or a wrench to prevent rotation,
tighten nut to make snug and firm. Follow Section C Maintenance - for proper stem adjustment.
k. For 1/2"–1" manual valves, replace one-piece handle and stop,
and for 1 1/2" manual valves replace one-piece wrench/stop
and extension, lockwasher and handle nut on stem. (This step
is not applicable to valves with self-locking stem nut).
l. For 2" valves, replace stop (manual valves only) or stem
spacer (automated valves only) and retaining nut. Follow
Section C- Maintenance-for proper stem adjustment. For 2"
manual valves, replace wrench block and extension and
secure with hex head screw.
m. With valve in closed position (stem flats going across
pipeline), replace ball and seats. With valve in open position,
carefully insert new body seals and place center section
between pipe ends.
NOTE: Smaller body seals included in repair kit are for earlier version
valves with smaller seal grooves only.
NOTE: Valves with a pressure relief hole in the ball (V3) must be
assembled and installed with the hole upstream, when the valve is
closed to insure that cavity relief is upstream. Any valve with a relief
hole will have an arrow on the body pointing downstream. This arrow
is stamped on the body or on a metal tag welded to the body.
Replace and tighten body bolts and nuts per torque figures
and method found in Section A.2.e. Cycle valve three times to
break in the seats after the rebuild.
CAUTION: Do not scratch body seals when replacing valve
body.
When ordering parts, please provide the part name and the following
information as found on the valve nameplate or mounting bracket
nameplate: The terminology shown in the exploded view Parts Listing
on next page is standard.
1. Valve Size, Style and Revision Number.
Example: 1/2" H7166 XM SW RO Stem
2. Size, Style and Five-Character Code (known as a “P”, “T”, “C”, or
similar number), the designation for a non-standard product.
Example: 3/4" H7146 XV SW C0222 Ball
14932-D 3
Flow Control Division
Worcester Control Valves
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, contact 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 5518
© 2003 Flowserve Corporation, Irving, Texas, USA. Flowserve and Worcester Controls are registered trademarks of Flowserve Corporation. 14932-C 6/03 Printed in USA
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