No. SS2-8190-0100 Azbil Corporation - 2 - Plug design and material combination For the operating temperature and pressure ranges of plug bellows type, refer to Figure 1. Note) Seat: Integrated to valve body Actuator Type Single acting diaphragm actuator (model PSK) Action Direct or reverse action Diaphragm Cloth-embedded ethylene propylene rubber Spring range 20 to 98 kPa {0.2 to 1.0 kgf/cm2}, 80 to 240 kPa {0.8 to 2.4 kgf/cm2}, 120 to 290 kPa {1.2 to 3.0 kgf/cm2} Note) Allowable differential pressure varies depending on spring range and air supply pressure. Supply pressure 140 to 340 kPa {1.4 to 3.5 kgf/cm2} Air connection Rc1/4 internal thread Ambient temperature 0 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, Limit switch, solenoid valve, and etc. Note) For the optional items, refer to the specification sheets and installation drawings of respective accessories. Additional specifications (by special order) . Oil/water free treatment . Copper free treatment . Stainless steel (SUS304) atmosphere-exposed nuts and bolts . Vinyl-wrapped copper tubing . ASTM CW-12MW valve stem Performance Rated Cv value Refer to Table 2. Inherent rangeability Operating temperature and pressure range Refer to Table 1 Allowable differential pressure Refer to Table 3. Leakage specification IEC 60534-4:2006 or JIS B2005-4:2008 Class IV: Leakage less than 0.01% of maximum valve capacity. Hysteresis error Within 1% F.S. (with positioner) Linearity Within ± 2% F.S. (with model AVP/HEP positioner) Within ± 3% F.S. (with model VPE positioner) Dimensions Refer to Figure 2, Table 5 and Table 6. Weight Refer to Table 7. Finish Blue (Munsell 10B5/10), silver, or other specified colors. Plug design Material General plug type PTFE Glass-reinforced PTFE Tantalum ASTM CW-12MW Rigid polyvinyl chloride Polypropylene Plug bellows type PTFE Trim material Rated Cv value Inherent rangeability PTFE reinforced with glass, Rigid PVC, Polypropylene 1.0 to 1.6 20 : 1 2.5 to 35 25 : 1 Tantalum, Hastelloy C 0.4 to 35 30 : 1 Figure 1 Operating temperature and pressure range of bellows bonnet Note) Use plug bellows type and ASTM CW- 12MW valve stem for corrosive gas service (i.e. hydrogen sulfide) 390 {4.0} 340 {3.5} 200 {2.0} 0 0 +50 +80 Fluid temperature ( C) Max. differential pressure kPa {kgf/cm2}