Flowserve TB59 User Manual

06784-E

Tank Bottom Valves 1" and 11/2" TB59

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

2. For welding weld end valves in line (SW, BW):

NOTE: prior to welding or brazing, thoroughly clean all joint surfaces
to prevent contamination.

a. Tack weld valve in place.

b. Remove three body bolts, loosen fourth, swing out body, with

valve open. 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, reassemble valve. Install new body seals,

if they were shipped separately from the valve. Temporary
Buna body seals found in the valve as received are not to be
reused.

e. Tighten and torque body bolts evenly and diagonally opposite

each other, alternating in a criss-cross pattern. Use torque
figures below:

1" & 1-1/2" 59 VALVES WITH STAINLESS STEEL BOLTS

Bolt Dia. In. Lbs. Ft.—Lbs.

3/8" 192-216 16-18

1/2" 504-552 42-46

3. CAUTION: The TFE body seals (code T) make excellent seals.

However, some points of caution in their use need
emphasizing:

a. No TFE part (except seats) is reusable. Upon disassembly of

the valve, they should be discarded and replaced with new
parts.

b. Care must be taken to avoid scratching the TFE body deals

during installation. Light lubrication of these seals can help
prevent damage.

B. Operation

1. The operation consists of turning the stem 1/4 turn clockwise to
close and 1/4 turn counter-clockwise to open. When the stem
flats are in line with the pipeline, the valve is open. These valves
may be automated or operated manually.

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, valves (expect oxygen prepared V20,
V33, or prefix code “X”, and valves with V38 or V46 options)
contain a silicone-based lubricant. 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 the ball valve cavities.

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 Worcester’s Actuator
Sizing Manual.

2 06784-E

Flow Control Division

Worcester Control Valves

C. Maintenance

Tighten retaining nut if seepage is noted at stem.

Cautions: For maximum stem seal life, proper stem, adjustment
procedure must be followed. Excessive tightening causes higher
torque and shorter stem seal life.

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

2. Back off nut 1/3 turn.

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

D. Rebuilding

WARNING: Ball valves can trap pressurized fluids in ball cavity
when closed.

Special handling and cleaning procedures are necessary for oxygen
and vacuum service valves. Refer to industry practices when
overhauling these units.

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.

- 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 (Worcester’s recommended spares) may be
ordered for these valves, consisting of seats, body seals, Belleville
washers, stem seals, thrust bearing, stem seal protector and
thrust bearing protector. Specify the material of seats and body
seals, size, series and R number (revision number) of valve or for
non-standard valve, the “P” number, “T” number, “C” number, or
similar, as found on the valve nameplate or on the actuator
mounting bracket nameplate.

Ordering Examples:

1" TBRK59 T RO

1 1/2" TBRK59 T TO244

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.

2. To replace seats and seals:

a. Place valve in open position. Remove four body bolts and

remove center section from between pipe end and tank
bottom flange.

b. With valve in closed position, remove old body seals, seats or

one—piece seats/body seals and ball.

c. Using a wrench to prevent stem from turning, remove self-

locking stem nut, (4) Belleville washers and follower from
stem. Remove stem through body cavity.

d. Remove thrust bearing, thrust bearing protector from body or

stem, stem seals and stem protector from recess in top of
body.

e. Clean all sealing surfaces of valve including the ball.

Note: The ball and the surfaces against which the seats 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 he operation of the valve. Flaws which can be seen
but barely detected with fingertips are acceptable. The stem surfaces
that the thrust bearings and stem seals contact must be undamaged,
clean and free from pit marks and scratches.

f. Lightly lubricate the ball, seats, body seals, stem seals, stem

seal protector, thrust bearing, and thrust bearing protector
with a lubricant compatible with the media being handled,
except for valves, with V20, V33 or V38 option, which are
assembled dry. White petroleum jelly is good general purpose
lubricant. For oxygen prepared valves (prefix code “X”), use a
PTFE-based (Teflon, Fluon) lubricant such as Fluorlube S-30
or equivalent.

g. Place a new PEEK thrust bearing protector and the Polyfill

thrust bearing on the stem and insert assembly through body
cavity. Place a new thin Polyfill stem seal, a new thick Polyfill
stem seal (black), and new PEEK stem seal protector, and the
follower in position. The thin stem seal and the thrust bearing
are the same size, black in color, and interchangeable. The
PEEK thrust bearing protector and stem seal protector are the
same size, tan in color, and interchangeable.

NOTE: If valve has been cleaned for and is used in oxygen service
(identified by “X” prefix, or V20 or V33 suffix in valve code), Polyfill
thrust bearing and stem seal protectors must be used. They are
included in the repair kit and are the same size, black in color, and
interchangeable with the thrust bearing and thin stem seal.

h. Place four new belleville washers in position (two pairs of

washers with larger diameter sides touching each other).

i. Place the self-locking stem nut on stem andusing a wrench to

prevent stem from turning, tighten selflocking stem nut until
Belleville washers are flat. Follow Section C, Maintenance for
proper stem adjustment.

j. With valve in closed position (stem flats going across

pipeline), replace ball and seats. Valves with Teflon seats have
a one-piece seat/body seal and it is inserted with valve in