Parker 60 Series spring return (AC/AO) or double acting (AD) rack and pinion actuators are compact, simply designed
devices that are quality engineered to provide high torque outputs and a high cycle, trouble-free life.
A compact, dual opposed rack and pinion design and guide band suspension combine to produce a symmetrically balanced,
center mount actuator. In addition, the actuator has a short powerful stroke, rapid response, and fully concentric operating
load capability which ensures optimum performance.
Features
• Three point suspension system uses carbon filled
PTFE guide bands for piston alignment and rack support
• Dual opposed piston design uses air pressure on
two pistons to deliver a balanced force to the pinion gear
• Patented balanced piston design results in even
distribution of bearing loads and eliminates piston tilting
• Multiple spring concept permits actuator use at
40 to 120 psig (2.8 to 8.3 bar) air supply requirements
• Suitable for use with dry or lubricated air, non-corrosive
gas, or light hydraulic oil
• Aluminum alloy body construction with two component
polyurethane coating
• Manual override
Specifications
Operating Pressure
90˚ Models:
40 to 120 psig (2.8 to 8.3 bar) maximum
AC – Normally Closed Spring Return
AD – Double Acting
AO – Normally Open Spring Return
180˚ Models:
80 psig (5.5 bar) maximum
ACX – Spring Return
ADX – Double Acting
Temperature Range
-4 ˚F to 175 ˚F (-20 ˚C to 79 ˚C)
Optional high and low temperature ranges available
Options
• Solenoid valve
• Rotary limit switch with valve position indicator
• Breather block
• Dual mount actuator
61S Option
• Compact single piston design
• Available for MB, HB, B2, and B6 Series Valves
Model Shown: 4Z-B6LJ-V-SS-61AD
Operation
Actuators are manufactured with an integral air
manifold and internal porting. The air manifold is
designed for direct mounting of solenoid valves.
This eliminates the need for external tubing and
simplifies installation. For applications not requiring
a solenoid valve, the air manifold inlet ports are
marked “A” and “B”. Air inlet port “A” will rotate the
actuator counter-clockwise. Spring return actuators
fail clockwise.
Recommended Actuators for B, MB, and HB Series Ball Valves*
ValveDouble ActingSpring ReturnSpring Return
SeriesADAOAC
B2LJ61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
B2LJ261AD or 61SAD61AO-2 or 61SAO61AC-2 or R 61SAC
B2XJ61ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
B2XJ261ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
B6LJ61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
B6LJ261AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
B6LS261AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
B6LPKR61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
B6LSPKR61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
B6XJ61ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
B6XJ261ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
B6XS261ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
B6XPKR61ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
B6XSPKR61ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
MB2A61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
MB2L61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
MB2X61ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
MB4A61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
MB4L61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
MB4X61ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
MB6A61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
MB6L61AD or 61SAD61AO-2 or 61SAO61AC-2 or 61SAC
MB6X61ADX or 61SADX61ACX-2 or 61SACX61ACX-2 or 61SACX
Actuators were sized in this table using the maximum allowable pressure differential across the seats with a 1.20 multiplier for
application factor. Please determine, by reading page 6, if the media or service conditions would render the information in this
table questionable. Actuators for SB Series Ball Valves may also be downsized to fit the application using the technique found
on page 6.
By properly sizing an actuator to a valve for a specific
application, performance is guaranteed and economies are
gained. Before an actuator can be sized for an application,
the amount of torque required must be determined. The
operating torque of a ball valve is influenced by the design,
seat material, and application (service) conditions.
Stem torque is primarily dependent upon the tightness of the
stem nut. The design of the SB Series Ball Valve is such
that the stem torque is constant. Ball/seat torque is created
by the friction between the ball and seat and is also very
sensitive to service conditions. The “floating ball” design
concept allows the system pressure to force the ball into the
downstream seat. The higher the system pressure, the
harder the ball is forced into the downstream seat, and,
therefore, the higher the torque. Also, since different seat
materials have different coefficients of friction, the ball/seat
torque also becomes a function of the seat material being
used.
Valve torque is also a function of the media flowing through
the valve. Abrasive medias have a tendency to increase the
amount of friction between the ball and seats, whereas some
light oils, which provide additional lubricity, may reduce the
amount of torque required.
The pressure torque curves on page 7 are the result of
laboratory testing using water at ambient temperature as the
medium. Torque values derived from these curves, when
the appropriate service condition correction factors are
applied, will be adequate for the vast majority of applications.
Based upon the valve size, seat material, and differential
pressure across the valve (in the closed position), the
amount of torque required may be determined using the
following procedure:
1.Find the valve torque from the appropriate curve by
using the differential pressure. Locate the differential
pressure on the horizontal axis of the chart and move up
until you arrive at the appropriate valve size. Transfer
the intersecting point across to the vertical axis of the
graph and read the required torque.
2.Multiply this torque by the service and media application
factor multipliers. The maximum combined multiplier
should never be greater than 2.
Application Factor Multiplier
A. Service
On-Off1.00
Emergency shutdown (cycled
less than once per month)2.00
Applications with less than two
cycles per day1.20
Applications below –20 ˚F (-29 ˚C)1.25
B. Media
Saturated steam1.20
Clean saturated steam1.00
Liquid, clean (particle free)1.00
Liquid, dirty (slurry), raw water1.80
Gas, clean and wet1.20
Gas, clean and dry (superheated stm.)1.00
Gas, dirty (natural gas)1.50
Chlorine1.50
Actuator Selection
When the torque requirements have been determined,
the actuator may be properly sized.
1.Double Acting Operation (AD)
Select the actuator whose torque output, at the
minimum air supply pressure, exceeds the calculated torque. Actuator torque output charts are
shown on pages 8 and 9.
2.Spring Return Operation, Fail Closed (AC)
Select the actuator whose spring torque output
exceeds the calculated torque. Actuator torque
output charts are shown on pages 8 and 9. In
addition, check the selected actuator to insure the
air torque output at the minimum air supply pressure
also exceeds the calculated torque.
3.Spring Return Operation, Fail Open (AO)
Select the actuator whose spring torque output
exceeds the calculated torque. Actuator torque
output charts are shown on pages 8 and 9. In
addition, check the selected actuator to insure the
air torque output at the minimum air supply pressure
also exceeds the calculated torque.
Valve Desired: 24Z-SB24L-PF-T-SS
Actuator Desired: Spring Return, Normally Closed
Differential Pressure: 250 psig
Minimum Air Supply Pressure: 80 psig
Service: On-off
Media: Raw Water
Calculation
From the PF Seal Pressure-Torque graph on page 7:
Torque at 250 psig = 170 in-lb
Service Factor from page 6:
Multiplier = 1.00
Media Factor from page 6:
Multiplier = 1.80
Application Operating Torque =
Operating Torque x Application Factor =
170 in-lb x 1.00 x 1.80 = 306 in-lb
From the AC Spring Torques on page 8, proceed down the
table looking for a torque exceeding 306 in-lb. The 65AC-6
meets the requirement, but the Air Torque at 80 psig does not.
Repeat this step to find a larger actuator. The next actuator in
the table to meet both requirements is the 66AC-4.
Valve Model: 24Z-SB24L-PF-T-SS-66AC-4
Valve Desired: 12A-SB12L-T-SS
Actuator Desired: Spring Return, Normally Open
Differential Pressure: 400 psig
Minimum Air Supply Pressure: 60 psig
Service: -20 ˚F
Media: Dirty Gas
Calculation
From the T Seal Pressure-Torque graph on page 7:
Torque at 400 psig = 30 in-lb
Service Factor from page 6:
Multiplier = 1.25
Media Factor from page 6:
Multiplier = 1.50
Application Operating Torque =
Operating Torque x Application Factor =
30 in-lb x 1.25 x 1.50 = 57 in-lb
From the AC Spring Torques on page 8, proceed down the
table looking for a torque exceeding 57 in-lb. The 62AO-3
meets the requirement for both Spring Torque and Air
Torque.
Valve Model: 12A-SB12L-T-SS-66AO-3
How to Order Actuators
Factory Assembled
Add the actuator model designation as a suffix to the ball valve part number.
Example: 4Z-B6LJ2-SSP-61AC-2. Describes a B6 ball valve with a normally closed actuator.
For Field Assembly
Simply specify the actuator. Example: 65AC-3. Mounting bracket kits are required when mounting actuators to valves.
Options
High Temperature Seals – Extends the high temperature from 175 ˚F (79 ˚C) to 250 ˚F (121 ˚C) and to 400 ˚F (204 ˚C) on
special Series 62 and 63 90˚ models.
Low Temperature Seals – Extends the low temperature from –4 ˚F (-20 ˚C) to –40 ˚F (-40 ˚C).
Solenoid Valve (Single coil) – Mounts directly to the actuator inlet manifold. NEMA 4 or 7 housings with voltages of 120, 24,
and 240 VAC. A manual override is standard.
Limit Switch – Fully enclosed, heavy duty rotary limit switch package with visual valve position indicator. Available with NEMA
4, 7, and 9 housings. Two pre-wired SPDT switches, hermetically sealed REED switch, inductive sensors, and potentiometer.
Breather Block – A direct mount diverter module redirects instrument quality air to the spring chamber during the spring
stroke (fail stroke) of AC and AO actuators. Ideal for corrosive, wet, or dusty environments. Also improves spring stroke
speed and allows the solenoid valve to be mounted to it.
Dual Mount Actuator – Two valves may be actuated with a single actuator. Available with both valves open, both closed, or
one open and one closed.
NOTE: Parker pneumatically actuated B Series Ball Valves should be ordered with elastometric stem packing and seals or
the optional live-loaded PTFE packing. This reduces the need for any furthur packing adjustment after receipt from the
factory.
High Temperature Seals – Add the suffix –HT to the end of the part number. For service up to 250 °F (121 °C). Add the
suffix –HT4 to the end of the part number for service up to 400 °F (204 °C). NOTE: The –HT4 option is only available on
series 62 and 63 90° models. Example: 2F-HB4LK-BN-SS-61AD-HT.
Low Temperature Seals – Add the suffix –LT to the end of the part number. Example: 4A-MB4LPFA-SS-61SAC-LT.
Accessories – Add one of the following suffixes to the end of the part number. Example: 16F-SB16L-PF-T-SS-63AC-3-2D.
Suffix Accessory
Single Option
-1ABreather Block
-1BSolenoid Valve, (NEMA 4, 120 VAC)
-1CSolenoid Valve, (NEMA 7, 120 VAC)
-1DSolenoid Valve, (NEMA 4, 24 VDC)
-1ESolenoid Valve, (NEMA 7, 24 VDC)
-1FSolenoid Valve, (NEMA 4, 240 VAC)
-1GSolenoid Valve, (NEMA 7, 240 VAC)
-1HLimit Switch – Two SPDT switches with mounting kit
Dual Mount Actuator – Add –DVM as a suffix to the end of the part number. Example: 6F-B6LPKC-SS-61AC-2-DVM. With
DVM dual mount valve options, the following are standard arrangements: Two-way valves are provided in their failed position
(in their closed position with AD actuators). Three-way valves are provided as shown below. Contact the factory for details on
other available options.
How to Order Mounting Bracket Kits
Add the valve series and actuator model designation as a suffix to MK-. Example: MK-MB4L-61S. Describes a mounting kit
for a MB Series ball valve with a 61S Series actuator.
WARNING
FAILURE, IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL
INJURY AND PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product and/or system options for further investigation by users
having technical expertise. It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog. Due to
the variety of operating conditions and applications for these products or systems, the user, through its own analysis and testing, is solely responsible for making the final selection of the
products and systems and assuring that all performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by Parker Hannifin Corporation and its
subsidiaries at any time without notice.
Offer of Sale
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by
the provisions stated in the “Offer of Sale” located in Catalog 4110-U Needle Valves (U Series).