Functional explanation Primary pressure flowed from passes through check valve on side, and flows in chamber A and B. Primary pressure also passes through pressure adjustment section and switching valve, and flows in drive room A. moves to left hand due to pressure of drive room A. in chamber A is compressed, and passes through check valve on side, and goes to side. If piston reaches stroke end, changeover switch is pushed, and compressed air is supplied to pilot room of switching valve, and switching valve is switched. Then the air in drive room A is exhausted, and the air is delivered to drive room B. Therefore, piston moves to right hand and air in chamber B is compressed, and passes through check valve on side, and goes to side. Boosting on side is compressed, if operations above are repeated. Feedback pressure is transmitted to pressure adjustment section due to side pressure passes through shuttle valve, and boosting is continued until pressure adjustment spring and pressure is balanced. JIS symbol Descriptions Working fluid EX Specifications Max. working pressure MPa Min. working pressure MPa Set pressure range MPa Withstanding pressure MPa Flow m /min. (ANR) Boosting ratio Ambient temperature range ubrication Port size Weight kg Product service life ow to order ABP D G Internal air circuit diagram Drive room B Fixed orifice ABP Compressed air 0.99 0. From primary pressure to twice primary pressure (.0MPa max.). Refer to the right graph rate flow characteristics Max. double pressure (or equivalent) 0 to (no freezing) Not required (use the turbine oil Class ISO VG if lubricated) Rc/. million (nominal) Switching valve Booster chamber B A port position Blank Same side of port D Bottom (air tank directly connected) Rear side of port B Option G Pressure gauge S B Foot bracket side check valve Pressure adjustment Booster chamber A Note) Option G (pressure gauge) is installed onto air at shipment. B (foot bracket) and S (silencer) are attached. (primary pressure) Drive room A Changeover switch side check valve side (secondary pressure)
Specifications Refrigerating Flow Characteristics (With air tank AT- installed, double pressure increase) Secondary pressure (MPa).0 0.9 0. 0.7 0. 0. 0. 0. 0.MPa 0.MPa Primary pressure 0.MPa 0. 0 0..0. Flow rate (m /min. (ANR)) Flow rate characteristics show max. flow rate of air. If primary pressure is constant and secondary side flow rate is increased, max. secondary pressure decreases. Note) needs approx. twice secondary side flow rate (max.) for primary side due to structure. Confirm that the instantaneous flow rate is within the curve. Filling characteristics Filling time (second/ ) 0. 0. 0. 0. 0.0.......7..9.0 Boosting ratio (time) Filling characteristics show relations between boosting ratio and filling time, if tank etc. filled with compressed air. To find filling time, when filling tank with air, where secondary side air pressure P0, air pressure in tank before filling P, air pressure after filling P, boosting P ratio before filling k and boosting ration after filling k, therefore k = and k P0 P = are led. Find k and k at first, then read filling time t and t according to P0 graph where boosting ratio k, k, finally filling time for tank capacity A ( ) is obtained with t = (t - t) A. Pressure characteristic (Setting: Primary pressure 0.9MPa, secondary pressure 0.97MPa, flow rate 0.0m /min. ANR) Secondary pressure (MPa).0 0.9 0.9 0.9 0.9 0.90 0. 0. 0. 0.7 0. 0.9 Primary pressure (MPa) Pressure characteristics show variation of set secondary pressure according to primary pressure variation. If primary pressure decreases, secondary pressure decreases slightly. Pulsation Pulsation width (MPa) 0.0 0.0 0.0 0.0 0.0 0 0 0 0 Tank capacity ( ) Pulsation shows width of pulsation if air tank is installed onto secondary side of air. Formula of air operational cycle N = Formula of air service life Since nominal service life of operational cycle is million T = Q x 0 7.P + 0.7,000,000 N x 0 AT- N: Operational cycle Q: Required flow (m /min. (ANR)) P: Primary pressure (MPa) T: Service life (hour) Each characteristics are just reference, but not assured conditions.
Internal structure 7 9 0 7 9 E PUS T 0 9 E E 77 9 7 79 7 0 A-A cross section 7 9 0 7 70 7 9 0 7 9 7 7 A CKD 7 A 7
Parts list Parts list No. Parts name Material Quantity No. Parts name Material 7 9 0 7 9 0 7 9 9 0 Valve stem (A) C type snap ring for hole Body block assembly Spring ball Packing seal Detection valve body Valve stem (B) Pipe Tie rod Plug with hexagon head hole Plain washer Spring washer exagon nut MY packing seal Rod bushing Cylinder tube rod packing seal ead cover Cap Gasket ip packing seal Cylinder exagon socket head cap bolt Cylinder ip packing seal Spool Stopper Oil impregnated bearing alloy 7 7 9 0 7 9 70 7 7 7 7 7 77 79 Soft packing seal Soft packing seal C type snap ring for hole Spring sheet Spring Valve seat Slip ring Adjusting assembly Guard Mounting nut Adjusting spring Diaphragm assembly Valve seat Bottom spring Stud Knob Valve assembly Regulator assembly Cross-recessed tapping screw Fixed orifice Master valve gasket exagon socket head cap bolt Cross headed pan Gasket Valve Plug Spring washer Urethane rubber Urethane rubber PBT resin Discrete consumable parts and options Part name Model no. Part number Remarks Select switch packing set ABP-K X, x, x, x, x, x Cylinder section packing seal set ABP-K X, x, x, x, 7 x Quantity Refrigerating Switching valve piston assembly Switching valve sealant assembly shuttle valve assembly ABP-K ABP-K ABP-K X, x, x, x 0 X, x, x, x, x X, x, x, x, x Using parts prior to minor changes Diaphragm assembly ABP-K 0 X Pressure adjustment section valve assembly ABP-K7 X, x, 7 x, 9 x assembly ABP-K X, x, x Bracket ABP-B For unit Pressure gauge ABP-GAUGE Pressure gauge pc. SW-A pc.
Dimensions ABP- Optional dimensions Bracket (ABP-B) installation - Rc/ Rc/ Rc/ gauge port Rc/ E PUS TO OCK 9 9 E -Rc/ EX Rc/ gauge port CKD Pressure gauge (ABP-GAUGE) (SW-A) 7. 0 R/ 9 7. R/ 7 07 07 () (0) (7) 7 -M0 depth Rc/ ( port position: ) -M depth 0 0 Rc/ ( port position: D) 7 (9) 0 Rc/ 7 7 Rc/ ( port position: )