【DO!BOOK・ページリンク】
cv-02   109 / 132

BOOKをみる

10秒後にBOOKのページに移動します


No. SS2-8110-1300 Azbil Corporation - 2 - Material: For body/trim material combinations and operating temperature ranges, refer to Table 1. Actuator Type Single acting diaphragm actuator (Type VA) Spring type piston actuator (Type PSA6) Double acting piston actuator (Type DAP) Action Direct or reverse action Diaphragm Type VA: Cloth-embedded chloroprene rubber Spring range Type VA 20 to 98 kPa {0.2 to 1.0 kgf/cm2} 40 to 120 kPA {0.4 to 1.2 kgf/cm2} 60 t o220 kPa {0.6 to 2.2 kgf/cm2} Type PSA6 200 to 390 {2.0 to 4.0} Supply pressure Diaphragm actuator Type VA: 120 to270 kPa {1.2 to 2.8 kgf/cm2} Piston actuator Type PSA6: 500 kPa {5.0 kgf/cm2} Type DAP: 490 kPa {5.0 kgf/cm2} Air connection Type VA, PSA6: Rc 1/4 internal thread (For VA4 and VA5, Rc1/4 adapter is provided on Rc 1/2 internal thread. Rc3/8 adapter is also possible.) Type DAP: Rc 1/2 internal thread. Rc 1/4 or 3/8 adapter is provided. Ambient temperature -30 to 70°C Valve action Air-to-close (Direct action actuator is combined) Air-to-open (Reverse action actuator is combined) Optional accessories Positioner, pressure regulator with filter, hand wheel, limit switch, solenoid valve, motion transmitter, booster relay, lock-up valve, and others. Performance Rated Cv value Refer to Table 2. Inherent rangeability 25:1 Allowable differential pressure Refer to Table 3 and Table 4. Leakage specification Refer to Table 2. Hysteresis error Without positioner: Within 3% F.S. With positioner: Within 1% F.S. Linearity Without positioner: Within ±5% F.S. With positioner: Within ±1% F.S. Dimensions Refer to Table 5 and Table 6. Weight Refer to Table 7. Finish Blue ( Munsell 10B5/10) or silver, or other specified colors. Figure 1 Flow characteristics (Idealistic flow characteristics is indicated in this graph) 100 75 50 25 0 25 50 75 100 Percentage of stem travel (%) Cv value (%)