ValvTechnologies V1 Series Manual del propietario
Page
VALVTECHNOLOGIES, INC.
BALL VALVE
Installation and Operations
Maintenance Manual
Page 2
TABLE OF CONTENTS
I.INTRODUCTION 3
PRODUCTDESCRIPTION 4
PART NUMBERING SYSTEM 5
II.INSTALLATION 6
RECEIVING & PREPARATION 6
ACTUATORS 6
ORIENTATION 6
WELDING, STRESS-RELIEVING & INSULATION 7
POST INSULATION PROCEDURES 7
III. OPERATION 8
LUBRICATION 8
TORQUETABLES 8
STEM ROTATION & POSITION 9
ACTUATORS 9
IV.MAINTENANCE 9
DISASSEMBLY 9
REPAIR & REWORK 10-11
BELLVILLESPRINGHEIGHTS 11-12
RE-ASSEMBLY 12-13
INSTALLINGACTUATOR 13
PRESSURE SEAL 14
BALLCAP 14
LOCK-UP GAP FOR LARGE BORE VALVES 15
BELLVILLE SPRING STAND OFF 15-16
COMPLETE ASSEMBLY 17
V.TESTING 18
TROUBLESHOOTING 18
PARTS INVENTORY PLANNING 19
RECOMMENDED SPARE PARTS 19
FACTORY AUTHORIZED SERVICE CENTERS 20
Page 3
INTRODUCTION
ValvTechnologies, Inc. is a global leader in the design and manufacturing of severe service zero-leakage
metal seated ball valves for the Power and Process Industry.
The purpose of this manual is to describe procedures that will ensure safe and successful installation,
operation and maintenance of the metal-seated ball valve assuming a trouble free service life.
Difficulties encountered in the operation or maintenance of ValvTechnologies’ valves should be directed
to a ValvTechnologies, Inc. authorized repair facility or distributor, or to its Houston facility. Failure to do
so may void the warranty.
Page 4
Forged,
Forged,
High Pressure
High Pressure
Valves
Valves
Low Pressure,
Low Pressure,
Flanged Valves
Flanged Valves
Live-Loaded
Gland Springs
Gland
Gland Packing
One-Piece
Blow-Out
Proof Stem
High Load
Belleville
Spring
Upstream
Seat Guide
Body Seal
Hard coated
Integral Seat
Hard coated
Ball
High Load
Belleville
Spring
Actuator
Mounting
Pad
Live-Loaded
Gland Springs
Gland
Gland
Packing
Actuator
Mounting
Pad
Hard coated
Integral Seat
Hard coated
Ball
Upstream
Seat Guide
High Load
Belleville
Spring
Upstream
Seat Guide
High Load
Belleville
Spring
One-Piece
Blow-Out
Proof Stem
PRODUCT DESCRIPTION
Page 5
V1 SERIES BALL VALVE PART NUMBERING SYSTEM*
Example: B — 3 — C6 — RF — FP — LV — 2
VALVE TYPE
A = Bi-Directional
B = Standard
C = Control Trim
X = Double Ball Bi-Directional
D = Double Ball Uni-Directional
TRIM CODE
Consult Trim Code Sheet
PORT SIZE
STD = Standard
Port
FP = Full Port
RP = Reduced Port
SP = Special Port
ACTUATION
Lever Operated
LV = Cast 150# - 600#
Forged 900# & Up
LC = Cast 900# & Up
LF = Forged 150# - 600#
Bare Stem
BS = Cast 150# - 600#
Forged 900# & Up
BC = Cast 900# & Up
BF = Forged 150# - 600#
VALVE SIZE
Nominal Valve Size
in Inches 1/4” - 4”
ANSI Standard Pressure Class
3 = 150# O = 2500#
5 = 300# A = 3500#
6 = 600# B = 4500#
2 = 800# C = 5000#
7 = 900#
8 = 1500#
9 = 2000#
TYPE END CONNECTIONS
SW = Socket Weld
BW = Butt Weld
SC = Threaded (NPT)
BL = Blank
RF = Raised Face
RJ = Ring Type Joint
FF = Flat Face
XA = Special
____ ____ ____ ____ ____ ____ ____
Page 6
INSTALLATION
RECEIVING AND PREPARATION PROCEDURE
1) Remove shipping protection.
2) Inspect valve for transportation damage.
3) Inspect valve bore and remove any debris.
4) Cycle the valve inspecting the ball for coating damage.
ACTUATORS
CAUTION! Actuators are not to be
mounted, removed, adjusted or
re-installed to or from ValvTech-
nologies valves except by trained
ValvTechnologies personnel.
IMPORTANT!
Valves mounted with electric
actuators should be cycled to
the mid-stroke position before
cycling under power.
WARNING!
VALVES SHOULD NEVER BE USED AS A STRUCTURAL MEMBER.
ORIENTATION
CAUTION! Valves must be installed with the FLOW ARROW
pointing from high to low pressure with the valve in the closed
isolating position. Alternatively the high-pressure end will be
labeled. The high-pressure end is defined as the end with the
highest pressure, with the valve in the closed isolating position.
NOTE: Uni-directional valves should not be installed in lines where a differen-
tial back pressure (from low to high pressure) of 200psi or more may exist.
Page 7
Localized Stress Relief is acceptable, do not furnace stress
relieve without consulting ValvTechnologies Engineering.
DO NOT
STRESS RELIEVE
800°F MAX.
MAXIMUM
1100°F
WELDING, STRESS RELIEVING AND INSULATION
The use of radiation shields is advised if heat damage to the actuator is a
concern.
Care is to be taken to minimize weld slag and splatter within the valve.
Do not strike arcs on the valve.
CAUTION! Excessive temperature and incorrect insulating or stress
relieving technique may damage the valve and void the warranty.
CAUTION!
Valve must be OPEN
during welding.
CAUTION!
Valve insulation is prohibited
during stress relieving.
Only insulate to this level
Valve service insulation is advised for valves expected to ex-
CAUTION!
No insulation is to be applied
above the body flat.
POST INSULATION PROCEDURES
Piping system shall be cleaned and flushed.
Limit switch and position indicator operation should be observed as the valve is cycled several times.
CAUTION!
Valves and valve assemblies should never
be used as load bearing members or be
used as part of a load bearing structure.
Page 8
VALVE LUBRICATION
ValvTechnologies metal-seated ball valve requires NO lubrication.
Re-tightening of body (with system de-pressurized) and gland packing bolting
is permissible, if leakage occurs in these areas.
Required Torque values are given in Tables 1 & 2.
The use of Copper-Based Anti-Seize Grease for stud lubrication and Molyb-
denum Disulfide Anti-Seize Grease for packing lubrication is recommended.
Bolt Tension may be decreased to 25% shown in Tables 1 & 2 when other
or no lubrication is used.
TORQUE ft/lbs (Nm)
B7 OR
EQUAL B8M OR EQUAL
5/16 (8) 12 (16) 4 (5)
3/8 (10) 18 (24) 6 (8)
7/6 (30) 29 (39) 9 (12)
1/2 (13) 45 (61) 13 (18)
9/16 (14) 50 (68) 19 (26)
5/8 (16) 85 (115) 26 (35)
3/4 (19) 150 (203) 45 (61)
7/8 (22) 240 (325) 70 (95)
1 (25) 355 (481) 110 (149)
1-1/8 (29) 510 (691) 155 (210)
1-1/4 (32) 700 (949) 210 (285)
1-3/8 (35) 950 (1288) 290 (393)
1-1/2 (38) 1250 (1695) 370 (502)
1-5/8 (41) 1600 (2169) 480 (651)
1-3/4 (44) 2060 (2793) 500 (678)
1-7/8 (48) 2500 (3390) 750 (1017)
2 (51) 3000 (4067) 900 (1220)
3 (76) 10300 (13965) 3100 (4203)
3-1/2 (89) 16500 (22371) 5000 (6779)
BOLT
SIZE -
INCHES
(mm)
TABLE 1
BODY BOLT TORQUE VALUES
TABLE 2
GLAND TORQUE
STUD
DIAMETER NOMINAL
BALL TORQUE VALUE in/lb (Nm)
THREAD
PITCH-
in (mm)
INSIDE
DIAMETER-
in (mm) GLAND
TORQUE NEVER
EXCEED
5/16 - 18 (8) 5/8 (16) 48 (5.4) 60 (6.8)
5/16 - 18 (8) 1-1/16 (27) 48 (5.4) 60 (6.8)
3/8 - 16 (10) 2-1/8 (54) 84 (9.5) 105 (11.9)
3/8 - 16 (10) 3-1/16 (78) 84 (9.5) 105 (11.9)
3/8 - 16 (10) 4-1/16 (103) 84 (9.5) 105 (11.9)
7/16 - 14 (11) - 132 (14.9) 165 (18.7)
1/2 - 13 (13) 5-1/8 (13) 204 (23.1) 225 (25.5)
1/2 - 13 (13) 6-1/16 (154) 204 (23.1) 225 (25.5)
9/16 - 12 (14) - 252 (28.5) 315 (35.6)
5/8 - 11 (16) - 396 (44.8) 495 (56.0)
NOTE: Due to the ValvTechnologies valve’s metal-to-
metal sealing surface operating torques are consid-
erably higher than comparable soft seated ball valves.
OPERATION
Note: Values are for B8M, Class 1 bolting.
Page 9
STEM ROTATION DIRECTION AND VALVE POSITION INDICATION
Typical valve hand wheels and levers require
80 lbf. (335N) of handle force to operate.
80 lbs. to
CLOSE
Lever operated are shown to be open when
the handle lies on the same axis as the valve
bore. The valve indicated closed when the
handle is at 90oto the valve bore.
ACTUATOR OPERATION
Valve actuators must be installed, operated and maintained as per their manufacturer’s written
instruction. In the event of a conflict between these instructions and those contained in this manual an
authorized ValvTechnologies distributor or to ValvTechnologies Houston facility should be contacted.
The lubricant of worm gear actuators should be inspected every three months and be replenished or
replaced if required.
On actuated and gear-operated valves an arrow
shows the valve position.
The stem, gland and ball (and in some instances the
drive sleeve) bear markings as shown to the left. The
marks will line up on the left of a closed valve, when
looking down on the stem and facing downstream.
All ValvTechnologies ball valves (unless spe-
cifically stated) are operated clockwise to
close and counter-clockwise to open.
CAUTION! During disassembly
particular care should be taken
not to damage mating, packing,
or sealing surfaces.
CAUTION! Packing must be re-
placed if gland nuts are loose.
Only approved ValvTechnolo-
gies packing shall be used.
MAINTENANCE
WARNING! DISASSEMBLY AND REPAIR OF VALVTECHNOLOGIES VALVE
ASSEMBLIES BY UNAUTHORIZED PERSONNEL MAY BE HAZARDOUS AND
NEGATE WARRANTIES.
DISASSEMBLY
Page 10
DISASSEMBLY (CONTINUED)
1) Valve shall be cycled closed.
2) Orientation and position shall be marked on valve components, par-
ticularly the side of the ball matched to the seat, prior to removal.
3) Marking should be indelible to the valve cleaning process, but should
not damage the parts (i.e. NO STAMPING).
5) Remove body nuts and sepa-
rate body and end cap.
4) Avoiding excessive force,
remove the entire actuator
assembly.
6) Remove body seal or
gasket, depending upon
valve design
7) Remove body gasket.
(if applicable) 8) Remove ball, after mark-
ing orientation and protect
from possible damage.
9) Remove gland nuts, gland
spring and gland.
10) Remove Stem.
11) Remove packing, using
packing pick or equivalent.
CAUTION!
Balls are matched to end
caps – these matched pairs
should never be separated
or interchanged.
12) Inspect ALL components,
note defects and replace if re-
quired, then de-grease using a
solvent in preparation for
re-assembly.
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