CVS Controls DBQ Series User manual

CVS Series DBQ and DBAQ
Control Valves
Introduction
Contained in this manual are installation
instructions, maintenance and parts
information for the CVS DBQ and DBAQ Control
Valves. Refer to the appropriate manuals for
instructions for the accompanying actuator,
positioner and additional accessories.
Only trained or experienced personnel should
carry out the operation and installation of all
pressure equipment. If you have any questions
regarding the equipment, contact your CVS
Controls representative.
Applications and Features
The CVS Series DBQ and DBAQ Control Valves
are ideally suited for high pressure water and
steam applications, providing excellent pressure
and flow control. This design may be utilized in
both high pressure and high temperature
control service.
CVS Series DBQ is a globe style valve, while the
CVS Series DBAQ is an angle style valve, which
may be used in angle piping or self draining
applications.
Valve bodies are available in 1 or 2 inch sizes,
with casted flanged connections, and ASME
body ratings of Class 1500, or Class 2500. LCC,
WCB and CF8M are standard body materials.
Additional materials may be available upon
request.
Sour Service Capability
Optional NACE MRO175/ISO 15156-2009
Flow Characteristic
This designs flow characteristic is up through
the seat ring and out through the cage. The CVS
DBQ and DBAQ series valves are single port,
metal seated valves.
Figure 1: 2” CVS Series DBAQ
INSTRUCTION MANUAL
Head Office
3900 101 Street
Edmonton, Alberta
T6E 0A5
Canada
Office: [phone]
Fax: [phone]
Calgary Sales Office
3516 114 Avenue SE
Calgary, Alberta
T2Z 3V6
Canada
Office: [phone]
Fax: [phone]
Website: www.cvs-controls.com Email: [e-mail]

SPECIFICATIONS
End
Connection
Style
Flanged raised Face
(RF)
ASME Class 1500, or Class 2500 (ASME B16.34-latest edition)
Flanged Ring Type
Joint (RTJ)
ASME Class 1500, or Class 2500 (ASME B16.34-latest edition)
Maximum
Inlet
Pressure*
Raised Face Flange
Consistent with Class 1500 or Class 2500 per ASME B16.34-latest
edition
Ring Type Joint
Consistent with Class 1500 or Class 2500 per ASME B16.34-latest
edition
Shutoff
Classification
Standard
Class IV –leakage of less than .01% of maximum capacity, using air at
50 psid
Optional
Class V –leakage of less than .0005cc per minute, per inch of port
diameter per psid using water at service pressure drop
Flow
Direction
Taper Plug and M-
Form Trims
Up through the seat ring and out through the cage
Flow
Characteristic
Refer to Table 2.
*Pressure and temperature limits in this manual, and any applicable standard should not be exceeded
Table 2: Yoke Boss, Stem, Port, and Travel Specifications in inches (mm)
Body
Size
Yoke Boss
Diameter
Stem Diameter
Standard Cage and Seat Ring Combinations
M-Form Plug
Taper Plug
Port Diameter
Rated Travel
Port Diameter
Rated Travel
1
2-13/16* (71)
3-9/16 (90)
5 (127)
1/2* (12.7)
3/4 (19.1)
1, 1-1/4 (25.4, 31.8)
1/4, 3/8, 1/2, 3/4, 1**
(6.4, 9.5, 12.7, 19.1, 25.4)
3/4 , 1***
(19, 25)
3/4 (19.1)
1 (25.4)
3/4 * (19)
1 (25)
2
3-9/16* (90)
5 (127)
3/4* (19.1)
1, 1-1/4 (25.4, 31.8)
1/4, 3/8, 1/2, 3/4, 1, 1-1/4
(6.4, 9.5, 12.7, 19.1, 25.4, 31.8)
3/4*, 1***
(19, 25)
3/4, 1, 1-1/4
(19.1, 25.4, 31.8)
1* (25)
1-1/8* (29)
*Standard Configuration
**Not available in Class 2500 bodies
***Flow Characteristic is slightly sacrificed
Table 1: Specifications
CVS Series DBAQ

INSTALLATION
Exceeding the recommended pressure and
temperature limits from Table 1, or those indicated
on the nameplates of your CVS Controls Valve, can
result in personal injury and property damage. CVS
Controls recommends the installation of a relief
valve to protect against overpressure situations.
CVS Series DBQ and DBAQ are designed to meet
specific conditions for fluid control, temperature,
pressure and pressure drop. The limiting factor
on these valves can be the body/trim material
combinations. Do not install these valves in any
other applications without first consulting with
your CVS Controls representative.
1. Inspect the valves for shipping damage and
foreign debris while uncrating.
2. Ensure the pipeline is free from welding slag, chips
and other debris by blowing out the line before
installation.
3. Position the valve on the line so the flow direction
indicator corresponds to the direction of the flow
of the pipeline.
4. CVS Controls recommends the installation of a
standard three-valve maintenance bypass. This
will allow the isolation of the control valve
without shutting down the pipeline system.
5. Install approved gaskets between the valve body
and the pipeline flanges.
6. If the actuator has been shipped separately, refer
to the mounting procedure in the applicable
instruction manual.
7. If the valve body arrives without packing installed
in the packing box, it will be necessary to install
the packing before putting the valve into service.
To complete these procedures, follow the
instructions under packing maintenance in this
manual.
8. *Note: It may be necessary to adjust the
packing to prevent leakage. Prior to shipping
the packing was tightened, and may require
some adjustment for specific conditions.
MAINTENANCE
Internal valve components are subject to normal
deterioration and must be inspected and replaced
as required. The necessity of inspections and
replacement of parts will depend on the severity
of service conditions. Inspections and
maintenance must be carried out on a regularly
scheduled basis.
To ensure the safety of personnel and to protect
against property damage, the following steps
should be carried out before beginning
disassembly.
1. To prevent the valve from opening suddenly,
disconnect any operating lines to the
actuator. This would include air pressure,
electrical power or control signal lines.
2. Isolate the valve by using the bypass valve, or
by shutting down the process completely.
Relieve the pressure and drain the process
fluid from both sides of the valve.
3. Relieve the pressure contained in the actuator
by venting the actuator loading pressure and
relieving any power actuator spring
compression.
4. Lock-out procedures should be strictly
adhered to while the equipment is being
serviced.
5. To ensure a good gasket seal, the gasket
should be replaced upon re-assembly
whenever it becomes disturbed by removing
or shifting gasketed parts.

PACKING LUBRICATION
These instructions are for the lubricator or
lubricator isolation valve (Figure 2). If the
lubricator or lubricator isolation valve have been
installed, they will be in place of the pipe plug and
are designed for packing that requires lubrication,
including PTFE composition. CVS Controls
recommends a silicone based lubricant. Lubricant
is not recommended for oxygen services or for
processes that operate in excess of 500F (260oC).
To add lubricant to the packing box, turn the
capscrew in a clockwise direction.
For Lubricator/Isolating Valve
1. Open the isolating valve.
2. Turn the capscrew in a clockwise direction.
3. Close the isolating valve.
PACKING LEAKAGE
Spring-Loaded PTFE V-Ring Packing
To eliminate leakage, tighten the packing flange
nuts (key 18, figure 7). If leakage cannot be
controlled in this manner, the packing will need to
be replaced.
Other Packing
If packing other than Spring-Loaded PTFE V-Ring
has been used, attempt to eliminate the leaking
and create a stem seal by tightening the packing
flange nuts to the minimum recommended torque
given in Table 5. If leakage continues, the packing
will need to be replaced.
Figure 2: Lubricator and Lubricator Isolating Valve
New Packing
If tightening the appropriate flange nuts does not
solve the leakage problem and the packing is
relatively new, leakage could indicate damage to
the packing box wall or to the stem. Inspect the
valve stem plug for a good surface finish as well as
the packing box wall for nicks and scratches that
could compromise the seal.
Hint:
If leakage originates from the outside diameter of
the packing, check the packing box wall for nicks
or scratches. If leakage originates from the inside
diameter of the packing, check the stem for nicks
or scratches.
LUBRICATOR
LUBRICATOR/ISOLATING VALVE
Figure 2 - LUBRICATOR AND LUBRICATOR/ISOLATING VALVE

Table 3: Recommended Torque for Packing Flange Nuts
Stem Diameter
Valve Class
Rating
Lbf•Ft
N•M
Inch
mm
Min
Max
Min
Max
1/2
12.7
1500
11
16
15
22
2500
13
18
18
24
3/4
19.1
1500
25
37
34
50
2500
30
45
41
61
1
25.4
1500
38
57
52
77
2500
45
67
61
91
1-1/4
31.8
1500
50
75
68
102
2500
60
90
81
122
ADDING PACKING RINGS
When using packing with lantern ring it may be
possible to add packing rings above the lantern
ring as a temporary measure without removing
the actuator from the valve body.
1. Isolate the control valve from the line
pressure and release the pressure from the
valve body.
2. Remove the packing flange nuts (key 18,
Figure 7) and lift the packing flange (key 16),
upper wiper (key 20) and packing follower
(key 21, Figure 7) away from the valve body.
3. Take care when removing out the old packing
rings to avoid scratching the valve plug stem
or packing wall. Clean all metal parts to
remove debris that would prevent the packing
from sealing properly.
4. Should split ring packing be added, spread the
rings over the stem and slide the rings into
the packing box. Alternate the position of the
splits to avoid creating a leak path. If solid ring
packing is being added, remove the stem
connector and slip the rings over the end of
the valve stem.
5. Re-assemble the packing follower, upper
wiper, packing flange, and packing flange
nuts. (keys 21, 20, 16, and 18).
6. Reconnect the body actuator stem connection
according to the appropriate manual. Torque
accordingly, reference Table 3.
REPLACING PACKING
Prior to beginning any maintenance, it is
important to isolate the valve from the line
pressure, and to release all pressure from the
valve body. Disconnect all operating lines to the
actuator, including air pressure, electrical power
or control signal lines. The process pressure
should be released both upstream and
downstream of the valve. Drain the process fluid
from both sides of the valve.
Employ lockout procedures to ensure the safety of
personnel and equipment during the valve
service.
NOTE: Extreme caution must be used during the
disassembly. Nicks and scratches will affect the
ability to seal the valve in the future.
1. Remove the capscrews in the stem connector
and separate the two halves. Exhaust all
actuator pressure if any was applied, and
disconnect the actuator supply and leak off
piping.
2. Remove the yoke locknut, and remove the
actuator from the bonnet (key 2).
3. Loosen the packing flange nuts (key 18), and
remove any travel indicator parts and stem
locknuts from the valve stem threads

.
Replacing Packing Continued,
4. Unscrew hex nuts (key 8) and remove the
bonnet off the valve stem. Ensure the valve
plug and stem remain in the body and on the
seat. This will prevent damage to the seating
surfaces as a result of the assembly dropping
from the bonnet after being lifted out.
5. Should the valve plug and stem assembly start
to lift out, use a brass hammer on the end of
the stem and tap it back down. Set the
bonnet on a cardboard or wooden surface to
prevent damage to the bonnet gasket surface.
6. Upon removing the bonnet gasket (key 5),
cover the opening in the valve body to protect
the surface and prevent any debris from
getting into the valve body.
7. Remove the packing flange nuts, packing
flange, upper wiper and packing follower
(keys 18, 16, 20 and 21). Carefully push the
remaining parts out from the body side of the
bonnet. Take care not to scratch the packing
box wall. Clean the box and metal parts.
8. Inspect components such as valve stem
threads and packing box for any sharp edges
that may damage the packing. If the surfaces
cannot be improved by light sanding, replace
the damaged parts. Scratches or burrs may
cause packing leakage.
9. Remove the protective covering from the
valve body. Install a new bonnet gasket (key
5). Ensure the gasket seating surfaces are
clean and clear of debris. Check that the M-
Flat valve plug, and stem assembly are
oriented as shown in Figure 5 when replacing
the bonnet to the valve body. Slide the
bonnet over the stem onto the stud bolts.
10. Replace the packing hex nuts (key 18)
10a. For pre lubricated hex nuts
(identified by black film coating on the
nut threads) tighten the hex nuts finger
tight.
10b. For all other nuts, CVS Controls
recommends that you lubricate the stud
threads with Never Seez pure Nickel
special lubricant or equivalent.
11. To center trim, the valve will need to be
stroked several times. Using proper bolting
procedures tighten the nuts to no more than
1/4 of the torque values specified in Table 4.
12. Increase the torque on each nut by an
additional 1/4 of the torque value using the
standard crisscross pattern. Repeat this
pattern until the torque values in Table 4 have
been reached. Apply the final torque value
again and if any bolts turn, all of the bolts will
require re-tightening.
13. Using the appropriate packing arrangement,
install new packing and metal packing box
parts. It may be necessary to pre-lubricate
packing parts with a silicone based grease.
14. Using a smooth edged pipe, cautiously tap
each soft packing part into the packing box.
To prevent trapping air between the rings,
add one ring at a time, without forcing them
below entrance chamber of the packing box.
With each additional ring the stack should
only be pushed down the thickness of one
ring.
Figure 5: M-Flat Valve Plug Orientation

Replacing Packing Continued,
15. Install the packing follower, wiper and packing
flange. Lubricate the packing flange studs (key
17) and faces of the packing flange nuts (key
18). Replace packing flange nuts.
16. For spring loaded PTFE V-Ring packing, tighten
the packing flange nuts until the shoulder on
the packing follower (Key 21) contacts the
bonnet. For other packing types, tighten the
packing flange nuts in small increments
alternately. Repeat until the maximum
recommended torque is reached, shown in
Table 3.
17. Mount the actuator on the valve body and
reconnect the valve plug stems according to
the appropriate actuator instruction manual.
Valve
Size Inch
Valve
Rating
ASME Class
Lbf•Ft
N•m
1
1500
130
176
2500
191
259
2
1500
104
141
2500
281
381
DOUBLE PACKING
PTFE/COMPOSITION
Figure 3 - Packing Arrangements
GRAPHITE RIBBON AND FILAMENTPTFE V-RING
GRAPHITE RIBBON AND FILAMENT
Design "HPX2, HPAX2" and "HPX5, HPAX5"
SINGLE PACKING
PTFE V-RING
ZINC WASHER, ONE USED BELOW EACH GRAPHITE RIBBON RING.
NOTES:
HAS THE APPEARANCE OF A WOVEN OR BRAIDED RING.
a
b
a
b
ab
Table 4: Recommended Torque for Body to Bonnet Bolting

TRIM MAINTENANCE
Disassembly
1. Remove the actuator from the bonnet. Refer
to steps 1 thru 5 of Replacing Packing
procedure. Observe all warnings and cautions.
NOTE: Avoid damaging gasket sealing surfaces.
The surface finish of the valve stem is critical for
ensuring a tight seal. The seating of the seat ring
and valve plug are critical for tight shutoff.
Replace accordingly should an inspection show
damage.
2. Carefully lift the valve plug and stem
assembly, cage, seat ring and seat ring gasket
out of the valve body. If the valve plug is
being re used, take care to protect the valve
plug stem and valve plug seating surface from
scratches or damage.
3. Inspect all components for wear or damage
that would prevent proper operation of the
valve. Replace or repair trim parts
accordingly. Refer to Lapping Metal Seats or
Trim Replacement as required.
Lapping Metal Seats
With metal to metal seating in any valve, a
small amount of leakage can be expected. If
the leakage becomes excessive, it is possible
to improve shutoff by seat lapping of the
valve plug and seat ring.
Deep nicks may be machined, rather than
ground out.
Apply a good quality lapping compound
mixture of 280 to 600 grit to the bottom of
the valve plug.
Secure the seat ring using a vise, and hold the
cage against the seat ring to properly align the
valve plug and seat ring while grinding.
Once completed, clean the seating surfaces
thoroughly and test for shutoff. Repeat the
lapping process if leakage is still excessive.
Assembly
Upon completion of trim maintenance or
replacement, reassemble the valve body using
the following procedure. Ensure all gasketed
surfaces have been thoroughly cleaned.
1. Install the seat ring gasket (key 6) and the seat
ring (key 11) into the valve body.
2. For standard cage installation, align two of
the holes in the cage with the centerline of
the valve body.
3. Install the valve plug and stem assembly (key
4) into the cage. Ensure the m-flat valve plug
orientation is as shown in Figure 5 when
replacing the bonnet.
4. Install the bonnet gasket (key 5) and bonnet
(key 2) over the valve stem and onto the
body.

Assembly Continued,
5. Lubricate the bolting, unless pre lubricated
bolt nuts are being used. Replace the hex nuts
finger tight. Torque the nuts using proper
bolting procedures in a crisscross pattern to
no more than 1/4 of the nominal torque value
specified in Table 4. After all nuts have been
initially torque, increase the torque by 1/4 of
the specified nominal torque using proper
bolting procedures again. Repeat the process
until all nuts are tightened to the specified
nominal value. Apply final torque once again,
should any nut still turn, repeat the torque
process on all nuts.
6. Install new packing box parts using steps 11
thru 13 of the replacing packing procedure.
NOTE: Should minor adjustments be required, re
clamp the actuator and valve stems together. Do
not screw the valve stem in or out of the stem
connector as this may change the orientation of
the valve plug shown in Figure 5.
7. Mount the actuator using correct procedures
referenced in the appropriate actuator
manual. Check for packing leakage when
putting the valve into service. Re-torque
packing flange nuts as required.
PARTS ORDERING
The CVS DBQ and DBAQ Series Valves are
identified by a serial number located on the valve
body. Please reference this number when
contacting a CVS Controls Ltd. Representative for
technical support or part inquiries.
When shipped as part of a complete valve
assembly with a CVS Controls actuator, the same
valve serial number can be found on the actuator
nametag as well as the valve body.

Item
Description
Item
Description
1
Body, LCC, 900/1500#, RF
13
Packing Set, Upper Packing, PTFE
2
Bonnet, LCC, 3-9/16 Yoke Boss
14
Packing Set, Center Packing, PTFE
3
Bonnet Flange, LCC
15
Packing Set, Lower Packing, PTFE
4
Pin, Ø.187, 316 SST
16
Packing Flange, Steel
5
Bonnet Gasket
17
Packing Flange Stud, Steel
6
Seat Ring Gasket
18
Packing Flange Nut, Steel
7
3/4" Stem, 316 SST
19
Packing Box Ring, 316 SST
8
Hex Nut, 9/16”, ASME SA-194-2H
20
Upper Wiper, Felt
9
Stud Bolt, 9/16”x3.78, ASME SA-193-B7
21
Packing Follower, 316 SST
10
Cage
22
Packing Spring
11
Seat Ring
23
Special Washer
12
Plug
24
Lower Wiper, Felt
Figure 7: 2” CVS SERIES DBAQ

PARTS LISTING –2“ CVS SERIES DBAQ –Table 5
Item
Description
Part Number
Quantity
1
Body, CVS Series DBAQ, 2”, LCC, 900/1500# RF
CVS 2U967522012
1
2
Bonnet, LCC, 3-9/16 Yoke Boss, 2” CVS DBAQ
CVS 2N1363X0022
1
3
Bonnet Flange, LCC, 2” CVS DBAQ
CVS 1N339222012
1
4*
Pin*, Valve Stem/Plug Assembly, (3/4” Stem)
See Table 6
1
5
Bonnet Gasket, 2” CVS DBAQ, HT
CVS 1L120899442
1
6
Seat Ring Gasket, 2” CVS DBAQ, HT
CVS 1N297899442
1
7*
Stem*, 3/4", 316 SST, Valve Stem/Plug Assembly
See Table 6
1
8
Hex Nut, 9/16”, ASME SA-194-2H
CVS 1C330624072
12
9
Stud Bolt, 9/16”x3.78, ASME SA-193-B7
CVS 1R387331012
12
10
Cage, Equal Percent, 17-4/HT1150
CVS 1P892339022
1
11
Seat Ring
CVS 1U274346052
1
12*
Plug*, Valve Stem/Plug Assembly, Alloy 6
See Table 6
1
13**
Packing Set**, Upper Packing, PTFE
See Table 7
1
14**
Packing Set**, Center Packing, PTFE
See Table 7
3
15**
Packing Set**, Lower Packing, PTFE
See Table 7
1
16
Packing Flange, 3/4", Steel
CVS 1E9448
1
17
Packing Flange Stud, Steel
CVS 1E9449
2
18
Packing Flange Nut, Steel
CVS 1E9446
2
19
Packing Box Ring, 316 SST
CVS 1J8733
1
20
Upper Wiper, Felt, 3/4”
CVS 1J8728
1
21
Packing Follower, 316 SST, 3/4”
CVS 1E9447
1
22
Packing Spring
CVS 1F1256
1
23
Special Washer, 3/4” SST
CVS 1F1250
1
24
Lower Wiper, TFE, 3/4"
CVS 1J8723
1
*Valve Stem, Valve Plug and Pin Sold as Assembly –See Table 6
** Items 12, 13 and 14 - Part of a complete Packing Set –See Table 7
Table 6:
Item
Description
Part Number
Quantity
4, 7, 12
Valve Stem and Plug Assembly, Alloy 6, 3/4"
CVS 2U5986X0012
1
Table 7:
Item
Description
Part Number
Quantity
13, 14, 15
PTFE Packing Set, 3/4”
CVS 1R2904
1

CVS Series DBQ Dimensions
Nominal
Body
Size
Inch
A
D
G (Maximum)
Class 900/1500
Class 2500
Standard Bonnet
Ext. Bonnet
Class
900/1500
Class 2500
RF,
Flanged,
or Weld
Ends
RTJ
Flanged
Ends
RF,
Flanged,
or Weld
Ends
RTJ
Flanged
Ends
1/2"
(12.7mm)
Stem
3/4"
(19.1mm)
Stem
1/2"
(12.7mm)
Stem
3/4"
(19.1mm)
Stem
Class
900/1500
Class 2500
Inches
1
10.00
10
12.13
12.13
8.31
9.38
15.38
16.00
1.81
2.12
2
12.13
12.25
15.38
15.50
9.75
10.50
16.81
17.44
2.75
3.25
mm
1
254
254
308
308
211
238
391
406
46
54
2
308
311
391
394
248
267
427
443
70
83
CVS Series DBQ Dimensions
CVS Series DBQ –Plain Bonnet
CVS Series DBQ –Extension Bonnet

CVS Series DBAQ –Product Bulletin: Dimensions
Nominal
Body
Size Inch
A
D
Class 900/1500
Class 900/1500
Class 2500
Std Bonnet
Ext. Bonnet
RF,
Flanged,
or Weld
Ends
RTJ
Flanged
Ends
RF, Flanged,
or Weld Ends
RTJ Flange
Ends
1/2"
(12.7mm)
Stem
3/4"
(19.1mm)
Stem
1/2"
(12.7mm)
Stem
3/4"
(19.1mm)
Stem
Inches
1
5.56
5.56
6.06
6.06
8.31
9.38
15.38
16.00
2
7.00
7.06
7.69
7.75
9.75
10.50
16.81
17.44
mm
1
141
141
154
154
211
238
391
406
2
179
179
195
197
248
267
427
443
Nominal
Body
Size
Inch
D
Class 2500
Standard Bonnet
Extension Bonnet
1/2"
(12.7mm)
Stem
3/4"
(19.1mm)
Stem
1/2"
(12.7mm)
Stem
3/4"
(19.1mm)
Stem
Inches
1
6.94
8.00
14.00
14.62
2
8.25
9.00
15.31
15.94
mm
1
176
203
356
371
2
210
229
389
405
CVS Series DBAQ –Plain Bonnet
CVS Series DBAQ –Extension Bonnet

CVS Series DBAQ: Product Bulletin
Flow Coefficients: M-Form Valve Plug
Flow Up –Equal Percent
Body
Size
(Inches)
Port
Diameter
Total
Travel
Valve Opening –Percentage of Total travel
FL*
In.
mm
In.
mm
10
20
30
40
50
60
70
80
90
100
CV
1
1/4
3/8
1/2
6.4
9.5
12.7
3/4
3/4
3/4
19
19
19
.067
.121
.230
.109
.163
.425
.170
.271
.603
.237
.443
.861
.324
.616
1.19
.449
.887
1.65
.632
1.29
2.25
.891
1.82
3.07
1.27
2.47
4.14
1.62
3.19
5.38
.95
.97
.95
3/4
19.1
3/4
1a
19
25a
.265
---
.531
---
.871
---
1.38
---
2.03
---
3.01
---
4.58
---
6.67
---
8.5
---
9.66
11.0
.89
.89
2
1/4
3/8
1/2
3/4
1
6.4
9.5
12.7
19.1
25.4
3/4
3/4
3/4
3/4
3/4
19
19
19
19
19
.103
.101
.193
.378
.684
.137
.168
.380
.634
1.08
.184
.263
.561
.971
1.66
.243
.399
.794
1.44
2.52
.321
.585
1.12
2.12
3.80
.440
.850
1.58
3.16
5.72
.628
1.22
2.23
4.75
8.52
.875
1.73
3.16
6.96
12.5
1.21
2.45
4.33
9.48
16.1
1.59
3.27
5.55
11.7
19.2
.97
.97
.97
.95
.92
1-
1/4
31.8
3/4
1a
19
25a
.885
---
1.28
---
1.81
---
2.69
---
4.27
---
9.48
---
13.3
---
19.0
---
23.1
---
27.2
33.8
.92
.92
XT
1
1/4
3/8
1/2
6.4
9.5
12.7
3/4
3/4
3/4
19
19
19
.762
.369
.443
.548
.411
.585
.392
.341
.588
.419
.490
.557
.476
.639
.547
.548
.609
.565
.565
.589
.603
.582
.626
.647
.602
.679
.684
.666
.784
.780
--
--
--
3/4
19.1
3/4
1a
19
25a
.843
---
.641
---
.596
---
.560
---
.566
---
.594
---
.601
---
.625
---
.659
---
.686
.608
--
--
2
1/4
3/8
1/2
3/4
1
6.4
9.5
12.7
19.1
25.4
3/4
3/4
3/4
3/4
3/4
19
19
19
19
19
.482
.434
.792
.774
.647
.417
.306
.754
.647
.645
.420
.425
.687
.645
.659
.479
.537
.665
.649
.644
.522
.522
.635
.658
.623
.563
.519
.618
.651
.612
.548
.535
.600
.623
.614
.565
.569
.600
.624
.621
.591
.611
.663
.664
.721
.643
.720
.748
.731
.784
--
--
--
--
--
1-
1/4
31.8
3/4
1a
19
25a
.671
---
.629
---
.624
---
.598
---
.544
---
.343
---
.684
---
.711
---
.774
---
.774
.698
--
--
Flow Down –Equal Percent
CV
1
1/2
3/4
12.7
19.1
3/4
3/4
19
19
.452
.600
.832
1.10
1.28
1.76
1.85
2.93
2.46
4.05
3.19
5.18
4.22
6.70
5.30
8.49
6.56
10.0
8.00
10.8
.56
.81
2
1/2
3/4
1
12.7
19.1
25.4
3/4
3/4
3/4
19
19
19
.452
.600
1.19
.832
1.10
2.00
1.28
1.71
2.92
1.85
2.40
4.15
2.46
3.23
5.83
3.19
4.90
8.05
4.38
7.10
10.7
6.33
9.43
14.5
7.05
12.6
19.0
9.04
16.9
24.1
.55
.57
.64
1-
1/4
31.8
3/4
1a
19
25a
1.85
---
2.73
---
3.55
---
5.15
---
6.21
---
9.76
---
16.7
---
25.2
---
32.3
---
35.5
38.3
.69
.69
XT
1
1/2
3/4
12.7
19.1
3/4
3/4
19
19
.210
.195
.162
.166
.133
.160
.125
.136
.134
.155
.144
.221
.165
.280
.196
.368
.245
.493
.303
.587
--
--
2
1/2
3/4
1
12.7
19.1
25.4
3/4
3/4
3/4
19
19
19
.210
.195
.158
.162
.166
.139
.123
.170
.152
.125
.202
.190
.134
.243
.218
.157
.239
.256
.168
.257
.312
.159
.328
.370
.254
.352
.413
.267
.314
.412
--
--
--
1-
1/4
31.8
3/4
1a
19
25a
.134
---
.115
---
.127
---
.145
---
.253
---
.325
---
.368
---
.371
---
.370
---
.404
.461
--
--
*At 100% Travel
aValve travel may be up to 1 in. (25mm) with slight sacrifice in flow characteristic.
Note: KV= (0.865) (CV)

Notes:
CVS Controls Ltd. strives for the highest levels of quality and accuracy. The information included in this publication is presented for
informational purposes only. CVS Controls Ltd. reserves the right to modify or change, and improve design, process, and specifications
without written notice. Under no circumstance is the information contained to be interpreted to be a guarantee/warranty with regard
to our products or services, applicability or use.
Selection, use and maintenance are the sole responsibility of the end user and purchaser. CVS Controls assumes no liability for the
selection use and maintenance of any product.

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May 2019