Series 3PBV Automated Ball Valves - 3-Way Plastic
Specifications - Installation and Operating Instructions
Bulletin V-16
®
The Series 3PBV is ideal for mixing or diverting services in industrial,
chemical, turf and irrigation, and pool and spa applications, as well as
for use with potable water. The valve features a 3-seat design for efficient
automation, reinforced TFE seats and EPDM seals for longer life, and an
all PVC construction for heavyweight durability at a lightweight cost.
Valves also come standard with field selectable NPT or socket process
connections.
The 3PBV is an economical automated valve package with either an
electric or pneumatic actuator. Electrically actuated models are
weatherproof, NEMA 4, powered by standard 115 VAC supply, and are
available in either two-position or proportional control. Two-position
actuators use the 115 VAC input to drive each of the valve ports open
or closed, while the modulating actuator accepts a 4 to 20 mA input for
infinite valve positioning. Actuator features include thermal overload
protection to withstand stall conditions, visual position indication and a
permanently lubricated gear train.
The pneumatic double acting actuator uses an air supply to drive each
of the actuator ports. Spring return pneumatic actuators use the air
supply to drive the valve stem one direction, and internally loaded springs
return the valve to its original position. Also available is the SV3 solenoid
valve to electrically switch the supply pressure between the air supply
ports. Actuators are constructed of anodized aluminum and are epoxy
coated for years of corrosion free service.
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com
PVC Body
CPVC Body
A
B
C
D
E
ACT.
Weight
(lb)
1/2˝
6-1/32
(153.19)
1-49/64
(44.85)
4-1/4
(107.95)
4-21/64
(109.93)
DA1
1.47
3/4˝
6-15/64
(158.35)
1-49/64
(44.85)
5-3/64
(128.19)
4-21/64
(109.93)
DA1
1.76
1˝
6-25/64
(162.32)
1-49/64
(44.85)
5-43/64
(144.07)
4-21/64
(109.93)
DA1
2.03
1-1/4˝
6-35/64
(166.29)
1-49/64
(44.85)
6-13/16
(143.04)
4-21/64
(109.93)
DA1
2.73
1-1/2˝
7-5/8
(193.68)
2-51/64
(71.04)
7-49/64
(197.25)
5-1/2
(139.7)
DA2
4.88
2˝
7-13/16
(198.44)
2-51/64
(71.04)
7-59/64
(201.22)
5-1/2
(139.7)
DA2
6.38
PNEUMATIC DOUBLE ACTING – inches/(mm)
A
B
C
D
E
ACT.
Weight
(lb)
1/2˝
6-15/32
(164.31)
2-51/64
(71.04)
4-1/4
(107.95)
5-1/2
(139.7)
SR2
3.07
3/4˝
6-43/64
(169.47)
2-51/64
(71.04)
5-3/64
(128.19)
5-1/2
(139.7)
SR2
3.36
1˝
6-53/64
(173.43)
2-51/64
(71.04)
5-43/64
(144.07)
5-1/2
(139.7)
SR2
3.63
1-1/4˝
6-57/64
(175.02)
2-51/64
(71.04)
6-13/16
(143.04)
5-1/2
(139.7)
SR2
4.33
1-1/2˝
8-3/64
(204.39)
3-11/64
(80.57)
7-49/64
(197.25)
6-3/8
(161.93)
SR3
6.53
2˝
8-1/4
(209.55)
3-11/64
(80.57)
7-59/64
(201.22)
6-3/8
(161.93)
SR3
8.03
PNEUMATIC SPRING RETURN – inches/(mm)
A
B
C
D
E
F
ACT.
Weight
(lb)
1/2˝ 3/4˝ 1˝ 1-1/4˝ 1-1/2˝ 2˝
ELECTRIC ACTUATOR – inches/(mm)
7-25/32
(197.64)
4
(101.60)
5-5/8
(142.88)
2-5/16
(58.74)
U11
5.42
8-43/64
(220.27)
4-1/4
(107.95)
6-11/16
(169.86)
2-7/16
(61.91)
V12
9.42
7-63/64
(202.80)
4
(101.60)
5-5/8
(142.88)
2-5/16
(58.74)
U11
5.71
8-55/64
(225.03)
4-1/4
(107.95)
6-11/16
(169.86)
2-7/16
(61.91)
V12
9.71
8-9/64
(206.77)
4
(101.60)
5-5/8
(142.88)
2-5/16
(58.74)
U11
5.98
9-1/64
(229)
4-1/4
(107.95)
6-11/16
(169.86)
2-7/16
(61.91)
V12
9.98
8-25/64
(213.12)
4
(101.60)
5-5/8
(142.88)
2-5/16
(58.74)
U11
6.68
9-17/64
(235.35)
4-1/4
(107.95)
6-11/16
(169.86)
2-7/16
(61.91)
V12
10.68
8-17/32
(216.69)
4
(101.60)
5-5/8
(142.88)
2-5/16
(58.74)
U11
7.58
9-13/32
(238.92)
4-1/4
(107.95)
6-11/16
(169.86)
2-7/16
(61.91)
V12
11.58
9-23/32
(246.86)
4-1/4
(107.95)
7-59/64
(201.22)
6-11/16
(169.86)
2-7/16
(61.91)
V12
13.08
U12
11.08
4-1/4
(107.95)
5-3/64
(128.19)
5-43/64
(144.07)
6-13/16
(173.04)
7-49/64
(197.25)
E
F
C
D
E
D
B
B
A
C
A
PRESSURE - TEMPERATURE RATINGS
SERIES 3PBV
250
232
200
150
100
WORKING PRESSURE (psi)
50
40
0
32
73
92
62
WORKING TEMPERATURE (°F)
122
140
152
1/2˝ to 1˝
1-1/4˝ to 2˝
182
212
Page 2
SPECIFICATIONS
Service: Compatible liquids or gases.
Body: 3-way.
Line Size: 1/2˝ to 2˝.
End Connections: Female NPT or socket (field selectable).
Pressure Limit: 1/2˝ to 1˝: 232 psi (16.0 bar) @ 73°F (23°C); 1-1/4˝ to 2˝: 150
psi (10.3 bar) @ 73°F (23°C) WOG. Vacuum: 29˝ Hg. See chart for curve.
Wetted Materials:
Body, End Connectors: PVC.
Ball, Stem: PVC.
Seat: TFE.
Stem Seal: EPDM.
Temperature Limit: 32 to 140°F (0 to 60°C).
ACTUATORS
Electric
Power Requirements: 120 VAC, 50/60 Hz, single phase. Optional 220 VAC,
24 VAC, 12 VDC, and 24 VDC.
Power Consumption: (Locked Rotor Current): Two Position: 1/2˝ to 1-1/2˝:
.55A, 2˝: 0.75A. Modulating: 0.75A.
Cycle Time: (per 90°): Two Position: 1/2˝ to 1-1/2˝: 2.5 sec., 2˝: 5 sec.
Modulating: 5 sec.
Duty Cycle: Two Position: 1/2˝ to 1-1/2˝: 75%, 2˝: 25%. Modulating: 75%.
Enclosure Rating: NEMA 4. Optional NEMA 7 (Class 1, Div. II groups A, B,
C, D).
Housing Material: Aluminum with thermal bonding polyester powder finish.
Temperature Limit: 0 to 150°F (-18 to 65°C).
Conduit Connection: 1/2˝ female NPT.
Modulating Input: 4 to 20 mA.
Standard Features: Manual override and visual position indicator except
modulating units.
Pneumatic “DA” and “SR” Series
Type: DA series is double acting and SR series is spring return (rack and
pinion).
Normal Supply Pressure: 80 psi (5.5 bar).
Maximum Supply Pressure: 120 psig (8 bar).
Air Connections: 1/4˝ female NPT.
Air Consumption (per stroke): DA1: 2.32 cu. in.; DA2, SR2: 9.34 cu. in.;
SR3: 17.21 cu. in.
Cycle Time (per 90°): DA1: .03 sec.; DA2: .04 sec.; SR2: .09 sec.; SR3: .14
sec.
Housing Material: Anodized aluminum body and epoxy coated aluminum
end caps.
Temperature Limit: -4 to 180°F (-20 to 82°C).
Accessory Mounting: NAMUR standard.
Standard Features: Visual position indicator.
SERIES 3PBV AUTOMATED BALL VALVES - 3-WAY PLASTIC
Model*
3PBVPDA102
3PBVPDA103
3PBVPDA104
3PBVPDA105
3PBVPDA206
3PBVPDA207
Model*
3PBVPSR202
3PBVPSR203
3PBVPSR204
3PBVPSR205
3PBVPSR306
3PBVPSR307
Model*
3PBVPU1102
3PBVPU1103
3PBVPU1104
3PBVPU1105
3PBVPU1106
3PBVPU1207
Model*
3PBVPV1202
3PBVPV1203
3PBVPV1204
3PBVPV1205
3PBVPV1206
3PBVPV1207
Double Acting Pneumatic
Spring Return Pneumatic
Two Position Electric Modulating Electric
Size
1/2˝
3/4˝
1˝
1-1/4˝
1-1/2˝
2˝
CV
See Chart Below
* Complete model includes Port Configuration - see below.
Example:
3PBVPSR204-L3
Port
Configuration
“T” Port
“L” Port
-T1
-T2
-T3
-T4
-L1
-L2
-L3
Act. Open
All Open
A-B
A-C
B-C
B-C
A-B
All Closed
Act. Closed
A-B
A-C
B-C
All Open
A-B
All Closed
B-C
Flow Path
Cv Values
Size
1/2˝
3/4˝
1˝
1-1/4˝
1-1/2˝
2˝
Position
A
3.85
9.50
14.4
27.3
33.3
63.0
B
2.45
6.65
9.80
18.9
23.1
43.4
C
4.55
10.2
17.2
32.2
42.0
84.0
D
13.7
26.6
53.2
73.5
119
224
E
5.11
10.5
18.6
33.3
43.4
85.4
Position A:
• T-Port
• Center Inlet
• Diverting Flow
Position B:
• T-Port
• Center Inlet
• Separating Flow
Position C:
• T-Port
• Side Inlet
• Diverting Flow
Position D:
• T-Port
• Side Inlet
• Straight Flow
Position E:
• L-Port
• Any Inlet
• Diverting Flow
Page 3
XI. TROUBLESHOOTING
SYMPTOM
Actuator does not
respond to control
signal
Actuator will not
open and/or close
completely
Valve oscillates
Actuator motor
runs but output
shaft does not
rotate
SOLUTION
•Turn on Power
•Check wiring diagram;
re-wire
•Bring correct supply
to actuator
•Allow motor to cool;
resets automatically
•Remove actuator;
remount after 90° turn
•Set cams per
instructions
•Install correct unit
•Remove stops
•Torque of valve too
high
•Install brake
•Adjust brake; tighten
screw
•Contact factory
PROBLEM
•Power is not on
•Actuator wired incorrectly
•Incorrect voltage
•Thermal Overload
•Actuator and Valve in
opposite positions when
actuator installed
•Travel limit switch set
incorrectly
•Valve torque too high
•Mechanical stops not
removed when installing
actuator
•Torque of valve too high
•Actuator without brake
installed on butterfly valve
•Motor brake misadjusted
•Gear damaged/sheared
pin
I. BASIC INSTALLATION
1. Operate valve manually and place in the open position. (NOTE: ALL
ELECTRIC ACTUATORS ARE SHIPPED IN THE OPEN
POSITION.)
2. Remove any mechanical stops the valve might have. (DO NOT
REMOVE ANY PARTS NECESSARY FOR THE PROPER OPERATION
OF THE VALVE, SUCH AS THE PACKING GLAND, PACKING NUT,
ETC.)
3. Ensure that the actuator output shaft and valve stem are aligned
properly. If they are not, operate the valve manually until they are
correct.
4. Mount actuator to valve. Do not tighten nuts and bolts at this time.
5. Remove actuator cover.
6. Bring power to the actuator. CAUTION: Make sure power is OFF at
the main box.
7. Wire the actuator per the diagram attached to the inside of the
cover. Special actuators (those with positioner boards, etc.) will have
diagrams enclosed inside the cover.
8. Securely tighten bolts used to mount the actuator to a mounting
bracket or directly to the valve mounting pad if it is ISO5211 compliant.
9. Cycle the unit several times and check the open and closed
positions of the valve. Cams are pre-adjusted at the factory; due to the
variety of valve designs and types, however, slight adjustments might
be required. (SEE II and III).
10. Replace cover and tighten screws.
II. TO SET THE OPEN POSITION
1. Cycle the valve to the open position by applying power to terminals
#1 and #2. The top cam and switch control this position. In the open
position, the set screw in the top cam will be accessible.
2. If the valve is not open completely:
A. Slightly loosen the 8-32 x 1/4” set screw on the top cam.
B. Rotate the cam clockwise (CW) by hand until the switch
makes contact. Contact is made when a slight click can be
heard. By making incremental CW movements of the top
cam, the valve can be positioned precisely in the desired
position.
C. When the top cam is set, tighten the set screw securely.
3. If the valve opens too far:
A. Apply power to terminals #1 and #3. This will begin to
rotate valve CW. When valve is full open and in the exact
position desired, remove power from actuator.
B. Loosen the set screw in the top cam.
C. Rotate the top cam counterclockwise (CCW) until the
switch arm drops off the round portion of the cam onto the
flat section. A slight click can be heard as the switch
changes state.
D. Continue applying power to terminals #1 and #3 until
valve is in the desired position.
III. TO SET THE CLOSED POSITION
1. Apply power to terminals #1 and #3 to move the valve toward the
closed position. The bottom cam and switch control the closed
position. In the closed position, the set screw in the bottom cam will
be accessible.
2. If the valve is not closed completely:
A. Slightly loosen the 8-32 x 1/4” set screw on the bottom
cam.
B. Rotate the cam counter-clockwise (CCW) by hand until
the switch makes contact. Contact is made when a slight
click can be heard. By making incremental CCW movements of the bottom cam, the valve can be positioned precisely in the desired position.
C. When the top cam is set, tighten the set screw securely.
3. If the valve closes too far:
A. Apply power to terminals #1 and #2. This will begin to
rotate valve CCW. When valve is fully closed and in the exact
position desired, remove power from actuator.
B. Loosen the set screw in the top cam.
C. Rotate the top cam clockwise (CW) until the switch arm
drops off the round portion of the cam onto the flat section.
A slight click can be heard as the switch is no longer making contact with the round part of the cam.
D. Continue applying power to terminals #1 and #2 until
valve is in the desired position.
IV. MAINTENANCE
Once the actuator has been properly installed, it requires no
maintenance. The gear train has been permanently lubricated and in
most cases will never be disturbed. In the event it becomes necessary
to open the gear box for any reason, however, Shell Darina
®
#2 grease
is recommended for re-lubricating.
ELECTRIC ACTUATOR
V. DUTY CYCLE
Most standard electric actuators are rated for 25% duty cycle at 100%
ambient temperature at the rated torque.
VI. THERMAL OVERLOAD
All actuators are equipped with thermal overload protection to guard
the motor against damage due to overheating.
VII. MECHANICAL OVERLOAD
All actuators are designed to withstand stall conditions. It is not
recommended to subject the unit to repeated stall conditions.
VIII. SPARE PARTS
When ordering parts, please specify:
A. Model # B. Serial # C. Part Description
Recommended spare parts include:
A. Standard actuator: set of cams and switches.
B. Actuators w/positioner: set of cams and switches; 1K
potentiometer; valve positioner board.
IX. NEMA 7 ELECTRIC ACTUATORS
In general, operation and maintenance of a NEMA 7 electric actuator
is no different that of a NEMA 4 actuator. However, some precautions
must be followed:
1. DO NOT under any circumstances remove the cover of the actuator
while in a hazardous location. Removal of the cover while in a
hazardous location could cause ignition of hazardous atmospheres.
2. DO NOT under any circumstances use a NEMA 7 electric actuator
in a hazardous location that does not meet the specifications for which
the actuator was designed.
3. Always mount and cycle test the actuator on the valve in a nonhazardous location.
4. When removing the cover, care must be taken not to scratch, scar
of deform the flame path of the cover and base of the actuator, since
this will negate the NEMA rating of the enclosure.
5. When replacing the cover on actuators rated for both NEMA 4 & 7,
take care that the gasket is in place to assure proper clearance after
the cover is secured. After the cover screws are tightened, the
clearance between the cover and the base should be checked. A
.002” thick by 1/2” wide feeler gauge is used for this; it must not enter
between the two mating faces more than .125".
6. All electrical connections must be in accordance with the
specifications for which the unit is being used.
7. Should the unit ever require maintenance, remove from the
hazardous location before attempting to work on the unit.
If the actuator is in a critical application, it is advisable to have a
standby unit in stock.
Darina®is a registered trademark of Shell Oil Company
©Copyright 2006 Dwyer Instruments, Inc. Printed in U.S.A. 6/06 FR# R2-443423-00
Page 4
PNEUMATIC ACTUATOR PARTS LIST
1. Extruded aluminum housing
2. Nickel plated steel anti-blowout pinion
3. NBR 70 lower pinion O-ring
9
4. PTFE pinion spacer ring
9
5. NBR 70 top pinion O-ring
9
6. PTFE cam spacer ring
9
7. SS indicator cam
8. Nylon position indicator
9. SS pinion washer
10. Pinion snap ring
11. Die cast aluminum piston
12. Piston O-ring bushing
9
13. PTFE antifriction ring
9
14. PTFE piston thrust block
9
15. SS stop bolt retaining nut
16. SS stop bolt
17. External spring*
18. Internal spring*
19. Die cast aluminum end cap (left)
20. Die cast aluminum end cap (right)
21. NBR end cap seats
22. SS end cap bolt
*spring return actuators only parts subject to wear. Please contact the
factory or your W.E. Anderson distributor for replacement kits.
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com
MAINTENANCE
The Series 3PBV Automated Ball Valves are not field serviceable
and should be returned if repair is needed (field repair should not
be attempted and may void warranty). Be sure to include a brief
description of the problem plus any relevant application notes.
Contact customer service to receive a return goods authorization
number before shipping.
PNEUMATIC ACTUATOR
NOTE: For optimal operation, 3PBV actuators should be run with a
supply of clean, lubricated air.
SPRING RETURN ACTUATORS
Air to PORT 2 (the right hand port) causes the actuator to turn CCW.
Loss of air to PORT 2 causes air to exhaust and the actuator turns
CW. This is the FAIL CLOSE operation.
DOUBLE ACTING ACTUATORS
Air to PORT 2 (the right hand port) causes the actuator to turn CCW.
Air to PORT 1 (the left hand port) causes the actuator to turn CW.
DISASSEMBLING STANDARD ACTUATORS
IMPORTANT: Before beginning disassembly, ensure that the air
supply to the actuator has been disconnected, all accessories have
been removed and that the actuator has been dismounted from the
valve.
1. Loosen the end cap fasteners (22) with a wrench (size varies
depending on actuator model). On the spring return actuator, alternate
3 to 5 turns on each fastener until the springs are completely
decompressed. Use caution in removing the cap since the springs are
under load until the fasteners are fully extended.
2. Remove the pinion snap ring (10) with a lock ring tool. The indicator
(7) may now be removed.
3. Turn the pinion shaft (2) CCW until the pistons are at the full end of
travel. Disengage the pistons (11) from the pinion. (NOTE: Low
pressure air--3 to 5 P.S.I. MAXIMUM--might be required to force the
pistons completely from the body.) Note the position of the pistons
before removing them from the actuator body. The part numbers of the
pistons are located on the side and should be right-side up on an
actuator with a standard orientation.
4. Remove the pinion through the bottom of the actuator. The actuator
is now completely disassembled. All replacement parts may now be
put in. W.E. Anderson recommends that all wear parts (3, 4, 5, 6, 12,
13, 14) be replaced before reassembly.
REASSEMBLING STANDARD ACTUATORS
IMPORTANT: Be sure that the actuator surfaces are free of grit
and scratches before reassembling.
1. Apply a light film of grease to all o-rings and the pinion before
replacing.
2. Put the pinion (2) back through the actuator with the flats of the
pinion shaft running parallel with the body.
3. When reassembling the actuator, make sure that the piston racks
are square to the actuator body and returned to their original
orientation. (NOTE: The normal operation of all PBV pneumatic
actuators is FAIL CLOSED. To change the orientation to FAIL OPEN,
rotate the racks 180º to create a reverse operation.)
4. When replacing springs in a spring return actuator, ensure that the
springs are replaced in their identical position in the end cap from
which they were removed. (NOTE: In some circumstances, you might
want to change the standard 80 pound spring set to fit your
application and available air pressure. Changing the spring sets on
3PBV pneumatic actuators requires no special tools. Please refer to
the spring combination torque chart in our catalog for the inner and
outer spring combinations that will allow you to operate with the spring
set that you desire.)
4. Seal the end caps with a petroleum lubricant and bolt to actuator
body.
5. Check the seal of the actuator by covering seal areas (pinion, end
caps) with soapy water and using low pressure air to the actuator to
ensure that no bubbles are produced.
PNEUMATIC ACTUATOR
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