Kitz F Series User manual

Document No.：KE-4010-11
Operation Manual
for
KITZ F Series Pneumatic Valve Actuators
Thank you for having chosen KITZ products.
For safe and trouble-free use of the products, ensure to carefully
read all instructions of this manual before handling of the product.
Keep this manual in a convenient place for easy access of all valve
operating personnel.

Document No.：KE-4010-11
NOTES TO USERS
This manual applies to the KITZ F Series Pneumatic Valve Actuators.
For actuators of automatically operated value, refer to the operation manual of relevant actuators
prepared by the manufacturers.
SAFETY CAUTIONS
This manual calls users’careful attention to the dangers and hazards that may be caused to personnel
or properties during handling, storage, installation, operation or maintenance of the product. Such
dangers and hazards are specifically highlighted in the operation manual with either one of the following
marks.
A warning indicates a potentially hazardous condition that may result
in serious injury or death of personnel, if such a warning is ignored.
A caution indicates a potentially hazardous condition that may result
in minor injury to personnel or damage to properties, if such a caution
is ignored.
Indicate to call attention of an action.
Indicates prohibition of an action.
Indicates mandatory implementation of an action.
 This manual provides users with the instructions on correct use of KITZ F Series pneumatic valve
actuators. Ensure to carefully read all the items of this manual before handling, storage, installation,
operation and maintenance of the product.
 This manual covers the normal use of the product as a general guide to users, but does not necessarily
cover every condition or situation that may be caused to users while using the product. If technical
assistance beyond the scope of this manual is required, users are recommended to contact KITZ
Corporation or the distributors in their locations.
 Numerical limits given in this manual such as operating pressures and service temperatures are specified
in consideration of safe and trouble-free operation of the products. It is forbidden to use the product in
any condition that may exceed such numerical limits.
 Drawings and illustrations of the product in this manual provide users with only the basic information. Ask
KITZ Corporation or the distributors for detailed assembly drawings of the products, if needed.
 Any information provided in this manual is subject to from-time-to-time change without notice for error
rectification, product discontinuation, design modification, or any other causes that KITZ Corporation
considers necessary.
If any item of this manual is not strictly followed by users, KITZ Corporation shall have no responsibility for any
resulting accident or failure of the product.

Document No.：KE-4010-11
Contents
Page
1. Attentions for user’s system design ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１
2. Product Features ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１
3. Product Codes ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１
4. Mounting of Actuators on Valves ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・２
5. Dimensions and Mass ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３
6. Design Specifications ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・４
7. Product Identification Plate ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・４
8. Actuator Driving Mechanism ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・５
9. Output Torques ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・６
10. Supply of Air Operation Pressure ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・７
11. Air Consumption ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・８
12. Handling and Storage of Actuators and Actuated Valves ・・・・・・・・・・・・・・・・・・・・・・９
13. Valve Opening Positions Set for Shipment ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１０
14. Mounting Actuators on Valves ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１０
15. Adjusting Valve Opening Range ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１３
16. Mounting KITZ Optional Accessories on Actuators ・・・・・・・・・・・・・・・・・・・・・・・・・・１５
17. Optional Design Specifications ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１７
18. Automatic Operation of Actuators ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１７
19. Manual Operation of Actuators ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・１８
20. Inspection and Maintenance of Actuators and Actuated Valves ・・・・・・・・・・・・・・・・１９
21. Disassembly and Reassembly of Actuators ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・２０
22. KITZ Standard Spare Parts for KITZ Type FA/FAS Actuators・・・・・・・・・・・・・・・・・・・３１
23. Trouble Shooting ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３４
24. Notes to Users ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３５
25. Product Warranty ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３５
26. Emergency Call for Technical Assistance ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・３５
Appendix： Engineering Modifications of Actuators for Optional Specifications ・・・・・・・・・・３６

Document No.：KE-4010-11 Page: 1/58
1. Attentions for users system design
 Holding valve position
KITZ pneumatic actuators Do not assure no leakage. Actuators do not hold valve
positions long time without continuous air supply. If you need to hold valve position
long time without continuous air supply, contact KITZ Corporation or its distributors.
 Internal air residue of spring return type actuators
Out put torques of spring return type actuators indicate values without internal air
residue remains inside their cylinders. Please design your systems to be able to
exhaust internal air residue at spring return action. If internal air residue remains in the
cylinders, out put torque will be small and valves do not open or close by spring return
action.
 When you use under the next environment, please refer to us.
1. Corrosive environment
2. Explosiveness, flammable environment (explosion-proof specification)
3. Receive direct sunlight
4. Vibration environment (When an actuator increases vibration more than 0.5G)
Do not install the product under water. (Include high humidity environment and be
buried in snow)
 Do not pressurize spring return type actuators breathing port.
 Prevent entering dust, rainwater or waste into actuators through the breathing port.
2. Product Features
2.1 KITZ F Series pneumatic valve actuators are provided with output torque characteristics suitable for
operation of both KITZ ball valves and KITZ butterfly valves.
2.2 KITZ F Series pneumatic valve actuators are designed for direct modular mounting of KITZ optional
accessories on the actuator housing.
3. Product Codes
KITZ F Series pneumatic valve actuators are available in two types, depending on the drive mechanism. Type
FA is for the double action drive. Type FAS is for the spring return drive. For operation of valves of various
sizes, both types are available with the Size 1 through Size 6, which are identified by the last digit of each
product code, such as FA-1 or FAS-2.

Document No.：KE-4010-11 Page: 2/58
4. Mounting of Actuators on Valves
KITZ F Series pneumatic valve actuators are mounted on KITZ ball valves with a factory supplied bracket
connector, or directly mounted on ISO mounting pads of KITZ butterfly valves.

Document No.：KE-4010-11 Page: 3/58
5. Dimensions and Mass
Main dimensions and total mass
Ｗ （＝W1+W2） Ｅ （＝E1+E2） Ｈ （＝H1+H2） mass[ｋｇ]
FA/FAS FA FAS FA/FAS FA FAS
FA/FAS-1 104 174 219 121 1.7 2.1
FA/FAS-2 124 214 273 144 2.9 3.8
FA/FAS-3 144 256 331 164 4.4 6.4
FA/FAS-4 179 320 450 204 8.0 12.8
FA/FAS-5 213 416 571 248 13.6 23.4
FA/FAS-6 279 536 751 277 28.2 50.0
Type FA double action actuators
Type FAS spring return actuators
4‐M5 Depth 10
FA-6 ONLY
4-M5 Depth 10
FAS-6 ONLY
B （2：1）
4-R1 Depth L1
4-R2 Depth L2
4-R1 Depth L1 4-R1 Depth L1
4-R2 Depth L2
4-R3 Depth L3
A view
b2 B R1×L1 R2×L2 R3×L3 R4×L4
FA/FAS-1 9 50 M6×9 M5×7.5
FA/FAS-2 11 70 M6×9 M8×12 M5×7.5
FA/FAS-3 13 70 M6×9 M8×12 M5×7.5
FA/FAS-4 17 95 M6×9 M8×12 M10×15 M5×7.5
FA/FAS-5 27 113 M8×12 M10×15 M12×18 M5×7.5
FA/FAS-6 27 134 M8×12 M10×15 M12×18 M5×7.5
H3 D1 D2 I t
FA/FAS-1 3352516 2
FA/FAS-2 3353016 2
FA/FAS-3 3353225 2
FA/FAS-4 4554027 3
FA/FAS-5 5555034 3
FA/FAS-6 5706034 3
W1 W2 W3 W4 E1 E2 H1 H2 H4 H5 H6 H7 b1 d1 P1
FA-1 50 54 30 0 87 87 70 55 12 20 76 12 15 Rc1/4
FA-2 54 70 30 6 107 107 80 68 12 20 86 12 15 Rc1/4
FA-3 57 87 30 13 128 128 86 78 12 20 92 17 21 Rc1/4
FA-4 68 111 30 21 160 160 108 96 12 20 114 17 21 Rc1/4
FA-5 78 135 30 30 208 208 132 116 20 30 138 23 29 Rc1/4
FA-6 101 178 30 45 268 268 152 125 20 157 30 158 32 41 Rc1/4
W1 W2 W3 W4 E1 E2 H1 H2 H4 H5 H6 H7 b1 d1 P1 P2
FAS-1505430013287705512 20761215Rc1/4Rc1/8
FAS-2 54 70 30 6 166 107 80 68 12 20 86 12 15 Rc1/4 Rc1/8
FAS-357873013203128867812 20921721Rc1/4Rc1/8
FAS-4 68 111 30 21 290 160 108 96 12 20 114 17 21 Rc1/4 Rc1/8
FAS-5 78 135 30 30 363 208 132 116 20 30 138 23 29 Rc1/4 Rc1/8
FAS-6 101 178 30 45 483 268 152 125 20 157 30 158 32 41 Rc1/4 Rc1/8

Document No.：KE-4010-11 Page: 4/58
6. Design Specifications
FA/FAS-1 FA/FAS-2 FA/FAS-3 FA/FAS-4 FA/FAS-5 FA/FAS-6
Shaft rotating range 90°±7°
Cylinder volume (Ｌ) 0.15 0.31 0.61 1.29 2.29 5.27
Standard operation pressure 0.4 MPa
Operation pressure range *1 0.3〜0.7 MPa
Housing shell test pressure 0.97 MPa
Valve opening position
indicator 90°with 7 division marks including [O] and[S]
Service temperature range
*2 −20℃〜＋80℃
Bottom pad for mounting on
valves ISO5211
*1. Contact KITZ Corporation for technical advice, if the operating pressure is lower than 0.4MPa.
*2. The air supply must not be frozen.
7. Product Identification Plate
For the identification of the product code and service conditions, a metal plate is attached to the actuator
housing.
ID plate for FA-1 actuator
ID plate location
FA／FAS-1〜3 FA／FAS-4〜6

Document No.：KE-4010-11 Page: 5/58
8. Actuator Driving Mechanism
8.1 Type FA double action actuators
The air pressure supplied into Chamber[A] through Port ① pushes the pistons and the gear rack outwards,
and releases the air left in Chamber[B] through Port ②. The gear rack rotates the piston gear and the shaft
counter-clockwise to drive the valve. Reverse supply of the air pressure reversely activates valve operation.
8.2 Type FAS spring return actuators
The air pressure supplied into Chamber [A] through Port ① pushes the pistons and the gear rack outwards,
compressing the spring, and releases the air left in Chamber[B] through Port ②. The gear rack rotates the
piston gear and the shaft counter-clockwise to drive the valve. At the moment the air in Chamber [A] is
discharged through the solenoid valve, the spring force pushes the pistons to the reverse direction, and the
gear rack rotates the pinion gear and the shaft clockwise to reversely drive the valve.

Document No.：KE-4010-11 Page: 6/58
9. Output Torques
9.1 Output torques of Type FA double action actuators
UNIT: N･m
Operation pressure (air)
Actuator type 0.3 MPa 0.4 MPa 0.5 MPa
FA-1 14.4 19.2 24.0
FA-2 34.1 45.4 56.8
FA-3 68.7 91.6 114
FA-4 137 182 228
FA-5 254 338 423
FA-6 600 800 999
9.2 Output torques of Type FAS spring return actuators
UNIT: N･m
Driven by operation pressure (air)
0.3 MPa 0.4 MPa 0.5 MPa Driven by spring
Actuator
type Type of
spring ０°*1 ９０°*2 ０° ９０° ０° ９０° ０°*3 ９０°*4
3K 8.8 6.0 13.7 10.9 18.6 15.8 5.9 8.7
4K − − 12.1 8.0 17.0 12.9 7.6 11.7
FAS-1 5K − − − − 15.1 10.0 9.4 14.5
3K 20.5 14.3 31.8 25.7 43.2 37.0 13.5 19.8
4K − − 27.5 19.1 38.9 30.5 18.0 26.3
FAS-2 5K − − − − 34.5 23.6 22.3 33.2
3K 40.9 28.8 63.5 51.4 86.2 74.1 27.0 39.1
4K − − 55.3 37.3 77.9 59.9 35.2 53.1
FAS-3 5K − − − − 69.0 46.7 44.0 66.4
3K 83.5 60.2 129.9 106.6 176.4 153.1 55.8 79.1
4K − − 111.0 75.7 157.4 122.1 74.7 110.0
FAS-4 5K − − − − 139.0 94.5 93.5 138.0
3K 157.0 111.0 242.7 197.0 328.3 283.0 100.0 147.0
4K − − 206.0 140.0 291.8 225.8 137.0 203.0FAS-5 5K − − − − 259.0 175.0 170.0 254.0
3K 365.0 258.0 566.7 459.3 768.3 660.7 240.0 346.0
4K − − 487.0 325.0 688.3 526.5 318.0 481.0
FAS-6 5K − − − − 609.0 407.0 399.0 601.0
*1. For starting an actuator travel to open a fully closed valve.
*2. For ending an actuator travel to open a fully closed valve.
*3. For ending an actuator travel to close a fully open valve.
*4. For starting an actuator travel to close a fully open valve.

Document No.：KE-4010-11 Page: 7/58
10. Supply of Air Operation Pressure
10.1 For the actuator factory-assembled with a solenoid valve, provide the air tubing between the air
compressor and the solenoid valve. Air inlets are Rc 1/4.
10.2 Use copper, coated copper or plastic tubes of an adequate diameter and wall thickness. Clean tube
bores to remove all foreign residues and tightly seal all connections to avoid leakage of air during a travel from
the compressor.
10.3 If you want to mount your own solenoid valves other than those factory-assembled, select the following
type. For Type FA actuators, 4-way solenoid valves are used. For Type FAS actuators, 3-way or 4-way
solenoid valves with plug up just one port are used.
10.4 Air inlets are Rc1/4. Use 6mm or smaller tubes, and hexagonal fittings of 19mm and smaller width of flat .
Contact KITZ Corporation for technical advice, if you want to use larger tubes for faster operation of actuators.
10.5 Keep the air always free from dust and moisture ( -15℃ or lower dew point under the atmospheric
pressure ), using air-filters and air-dryers.
10.6 Choose the capacities of your own accessories and the sizes of auxiliary air tubing, in consideration of
possible loss of air pressure during a travel from the compressor.
10.7 The exact volume (Q) of air supply required per minute for actuators must be known before the air tubing
installation so that the provided operation pressure may be sufficient to properly drive actuators and valves.
Calculate your air supply requirement with the following equation.
10.8 The required air pressure must be kept constant at the air inlet of an actuator. Insufficient air supply
causes intermittent piston drive and results in malfunction of actuators.
Q = V(P + 0.1013) / 0.1013 x 60/t [L/min.(ANR)]
V: Volumeofactuatorhousing[L] ( V1 or V2 in Section 10 )
P: Airoperationpressure[MPaG]
t: Time required per stroke [second] under 0.4MPa operation pressure, where no
valve nor accessory is provided. ( Refer to Table 1 )
ANR: Air supply volume under the standard condition of 20℃ ( 68°F ),
760mmHg absolute pressure and 65% relative humidity
Design of solenoid valve mounting pad
( air inlet/outlet ports )
Actuator type Time[sec]
FA/FAS-1
FA/FAS-2
FA/FAS-3
FA/FAS-4
FA/FAS-5
FA/FAS-6
0.2
0.3
0.4
0.6
1.0
2.0
Table 1.
Time [t] required per stroke
under 0.4MPa operation