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Document No.:KE-4011-03
Operation Manual
For
KITZ FBS Pneumatic Actuators
Thank you for choosing KITZ products.
For safe and trouble-free function and performance of the product,
ensure to read and understand all items of this manual before valve
mounting and operation.
Keep this manual in a convenient place for your valve operators' easy
access.
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Summary of Contents for Kitz FBS
- Page 1 Document No.:KE-4011-03 Operation Manual KITZ FBS Pneumatic Actuators Thank you for choosing KITZ products. For safe and trouble-free function and performance of the product, ensure to read and understand all items of this manual before valve mounting and operation. Keep this manual in a convenient place for your valve operators’ easy...
- Page 2 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.
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Page 3: Table Of Contents
Handling and Storage of Actuators and Actuated Valves ···························· 7 Valve Opening Positions Set for Shipment ························································ 7 Adjusting Valve Opening Range ·············································································· 8 Mounting KITZ Optional Accessories on Actuators ······································· 9 Automatic Operation of Actuators············································································· 11 Manual Operation of Actuators ··················································································· 13 Inspection and Maintenance of Actuators and Actuated Valves ··············... -
Page 4: Attention For User's System
2-1. KITZ FBS pneumatic valve actuator is provided with output torque characteristics suitable for operation of KITZ smaller size ball valves. 2-2. KITZ FBS pneumatic valve actuator is designed for direct modular mounting of KITZ optional accessories on the actuator housing. -
Page 5: Mounting Of Actuators On Valves
Document No.:KE-4011-03 Page: 2/27 Mounting of Actuators on Valves KITZ FBS pneumatic valve actuator is mounted on KITZ smaller size ball valves directly with male shape driving shaft. Dimensions and Mass Unit: mm Air supply port Screw size of breathing port elbow... -
Page 6: Design Specifications
－20℃～＋80℃ Bottom pad for mounting on valves ISO5211 *1. Contact KITZ for technical advice, if the operating pressure is lower than 0.39MPa. *2. The air supply must not be frozen. Product Identification Plate For the identification of the product code and service conditions, a metal plate is attached to the actuator housing. -
Page 7: Actuator Driving Mechanism
Page: 4/27 Actuator Driving Mechanism Type FBS spring return actuator (1) The Air pressure supplied into the chamber A through the inlet ① pushes the piston-gear rack assembly toward the left, compresses the spring and discharges the air residue left in the chamber B through the outlet ②... -
Page 8: Supply Of Air Operation Pressure
10.3 If you want to mount your own solenoid valves other than those factory-assembled, select the following type. For FBS actuators, 3-way or 4-way solenoid valves with plug up just one port are used. -
Page 9: Air Consumption
We recommend to use an air reservoir of an adequate size to constantly operate an actuator at the preset time. ◆ Air consumption of FBS actuator: Q = V (P + 0.1013) / 0.1013 x n/60 /min.(ANR)]... -
Page 10: Handling And Storage Of Actuators And Actuated Valves
Store actuators or actuated valves in cool, dry, corrosion-free environment to keep them rust-free and prevent their malfunction or failure. Valve Opening Positions Set for Shipment KITZ ball valves equipped with FBS actuators are all shipped in the de-energized condition. -
Page 11: Adjusting Valve Opening Range
14.3 After having tightened the nuts, supply the compressed air to the port and check the valve opening range. Repeat this work until you have a satisfactory result Table 3: Adjustment for KITZ Class 150/300 full-bored floating ball valves (*5) Valve size (full-bore) L[mm]... -
Page 12: Mounting Kitz Optional Accessories On Actuators
Page: 9/27 Mounting KITZ Optional Accessories on Actuators KITZ FBS pneumatic valve actuator employs NAMUR dimensions for an accessory mounting pad on the top. Any NAMUR dimensioned solenoid valve can be directly mounted on the actuator without tubing. For detailed information on mounting KITZ optional accessories on FBS actuator, refer to the operating instructions provided for each optional accessory. - Page 13 Document No.:KE-4011-03 Page: 10/27 ◆ Design specifications of KITZ optional accessories Accessories Specification NAMUR solenoid valves Power supply Explosion proof ：AC100V／110V 50／60Hz Weather proof indoor use ：AC200V／220V 50／60Hz Weather proof outdoor use ：DC24V Air inlets：Rc1/4 Maximum working pressure：0.7MPa Switch boxes...
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Page 14: Automatic Operation Of Actuators
Page: 11/27 Automated Operation of Actuators 16.1 KITZ FBS pneumatic valve actuator is operated with the standard air pressure of 0.4MPa , however, can be set for operation with minimum 0.3MPa and maximum 0.7MPa air pressure. Actuators equipped with air filter-regulators are set for operation with 0.4MPa. - Page 15 Document No.:KE-4011-03 Page: 12/27 When Type FBS spring return actuator is used outside or wet condition, water may enter into a spring unit in some actuator orientation. Rotate a part avoiding entering water (“Mizukiller”) clockwise and set it adequate position that open side tip of Mizukiller shall be upword.
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Page 16: Manual Operation Of Actuators
Document No.:KE-4011-03 Page: 13/27 Manual Operation of Actuators All KITZ optional solenoid valves are provided with a manual switch. Choose any one of the following solenoid valves for manual operation of the actuators being energized. ① KOGANEI Model A180 Keep pressing a switch with the tip of a screwdriver for manual operation. Removal of the screwdriver returns the actuator to the original automated operation mode. - Page 17 Document No.:KE-4011-03 Page: 14/27 18.7 Ensure to carry out the following inspections periodically. Do it as frequently as possible for safe and trouble-free operation of actuators and actuated valves. ◇ Check the fully open or closed position of a valve. ◇...
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Page 18: Disassembly And Reassembly Of Actuators
Before disassembly of spring cartridges from FBS actuator, evenly loosen all of 4 spring cover bolts ( but don’t completely remove them from the cover ) and check if the spring has been released from the compression force and bolts can be rotated by hand. - Page 19 Document No.:KE-4011-03 Page: 16/27 19.2 Disassembly of KITZ FBS pneumatic valve actuator (1) Make the air pressure the same as the atmospheric level. (2) Gradually loosen all air tubing fittings and ensure that the housing pressure has been equalized with the atmospheric level. Dismantle an actuated valve from the pipeline and disassemble an actuator from the valve.
- Page 20 Document No.:KE-4011-03 Page: 17/27 (5) Remove the cover from the housing (Fig.7). Cover <2C> Bolt <35B> Fig.7 (6) Loosen bolts and remove the end cover and the spring unit. O-rings are placed inside the end cover and the spring unit (Fig.8). Spring unit Bolt <35>...
- Page 21 Housing <1> Bearing <67A> Bearing <67B> Pinion <142> Shaft <3> O-ring <45C> Fig.12 FBS spring return actuator is provided with a spring cartridge, in place of an end cover. Don’t disassemble the cartridge unit internally holding a compressed heavy-duty spring.
- Page 22 (1) Lubricate a larger O-ring, a smaller O-ring, a bearing, and a back-up ring with Kyodo Oil MULTEMP AC-J lubricant or the equivalent, and assemble them with the piston (Fig.13). Contact KITZ Corporation for advice, if this lubricant is not available. O-ring <45D>...
- Page 23 Document No.:KE-4011-03 Page: 20/27 (4) Lubricate the shaft assembled with the housing. Mount a thrust washer and a thrust bearing on the shaft securely with a snap ring (Fig.16). Snap ring <48A> Thrust washer <47A> Thrust bearing <47B> Fig.16 (5) Assemble the cover with the housing (Fig.17). Cover <2C>...
- Page 24 Document No.:KE-4011-03 Page: 21/27 (7) Lubricate the gear rack teeth and assemble it with the piston as follows: Mesh the first tooth of the pinion with the first space (bottom of tooth) of the rack, and insert the projection of the rack into the center hole of the piston. Temporarily assemble the piston and the rack with a hexagon headed bolt.
- Page 25 ④ Wipe off all soap solution afterwards. If any leakage has been detected, disassemble the actuator again to check if any part or component is scratched, deformed or worn, and replace them, if necessary, with KITZ genuine parts. End cover / housing contact...
- Page 26 Document No.:KE-4011-03 Page: 23/27 (12) Plug the leak detector hole with a seal washer and a hexagon headed bolt, to complete reassembly of an actuator ( Fig.23 ). Plug <85> Seal washer <155B> Bolt <13B> Fig.23 (13) Mount an indicator plate on top of the housing with two headed screws so that Mark [O] may point (a) the left-hand of the housing for ball valves, or (b) the air inlet/outlet ports for butterfly valves as shown in Fig.24.
- Page 27 Document No.:KE-4011-03 Page: 24/27 19.5 Construction details and list of parts FBS-1 Materials Part No. Description Material ASTM Part No. Description Material ASTM B584 Housing Aluminum die-cast B85-84-383.0 Stem bearing Bronze No.C83600 End cover Aluminum die-cast B85-84-383.0 Piston bearing...
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Page 28: Kitz Standard Spare Parts
Document No.:KE-4011-03 Page: 25/27 KITZ Standard Spare Parts for KITZ FBS Actuators The spare parts kit is a set of consumable parts for the actuator. The O-ring number for the end cover changes depending on the date of manufacture of the actuator. -
Page 29: Trouble Shooting
Document No.:KE-4011-03 Page: 26/27 O-ring identification number of end cover O-ring identification number is displayed on the back of the new end cover. If the O-ring number is indicated, select a spare part kit for the actuator manufactured after 2013. Trouble Shooting Detected Troubles Causes of Troubles... -
Page 30: Notes To Users
(1) The product has been correctly handled, stored, installed, operated and maintained according to this manual within the scope of design specifications and service conditions of the product. (2) The product has not been modified by any party other than KITZ Corporation or its authorized modification shops.
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