No. SS2-8113-0220 Azbil Corporation - 2 - Jacket connection Flanged end; RF Threaded end; Rc, NPT Operating pressure 981 kPa {10 kgf/cm2} or less Operating temperature 350°C or less Material SS400, SUS304 Note) Drain plug is provided as a standard at the jacket. Gland Type Bolted gland Packing / Grease Grease not provided; When V shaped PTFE packing or PTFE yarn packing is used. Grease provided; When graphite packing is used. Gasket Type; Flat type, serrated type Material; SUS316, SUS316L, SUS329J1, copper, aluminum Note) PTFE: Polytetrafluoroethylene Trim Valve plug Single seated, Contoured type plug . Metal seat (For flow characteristics, refer to Figure 1 and 2.) - Equal percentage (%CF) - Linear (LCF) Single seated, Quick opening type plug . Metal (Stellite) seat (QS) Note) For rated Cv 0.01 to 0.1, cage guided plug design. Material For body/trim material combinations and operating temperature ranges, refer to Table 1. Note) For fluid conditions requiring Stellite, refer to Figure 3. Actuator Type Single acting diaphragm actuator (Type PSA, HA) Action Direct or reverse action Diaphragm Cloth embedded ethylene propylene rubber Spring range 20 to 98 kPa {0.2 to 1.0 kgf/cm2} or 80 to 240 kPa {0.8 to 2.4 kgf/cm2} Supply pressure 120 to 390 kPa {1.2 to 4.0 kgf/cm2} Note) Allowable differential pressure varies depending on spring range and air supply pressure. Air connection Rc1/4 or 1/4NPT internal thread 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. Note) 1) For the optional items, refer to the specification sheets and installation drawing of respective accessories. 2) Accessories with the asterisk mark (*) are selected from among the following types depending on the actuators to be combined. Additional specifications (by special order) . Special inspection Flow characteristics inspection, material inspection (Material certificate), non-destructive inspection, steam inspection . Double gland . Oil/water free treatment . Copper free treatment . York material SCPH2 (Yoke material of PSA1 is SCPH2 as standard) . Stainless steel (SUS304) atmosphere-exposed nuts and bolts . Special air piping and joint . Sand-/dust-preventive measure . Saline damage countermeasure . Cold-area use specification . Tropical area use specification . Vacuum service Note: Sizing When the flow rates are small, a laminar flow is formed at the vena contractra of the valve if the fluid viscosity is relatively small or the differential pressure is high.Valve capacity is defined on the assumption that the flow at the vena contracta is turbulent. For this reason, valve capacity at the vena contractra is calculated large unless the Cv value calculation formula is corrected to the logical dimensions, which may produce a valve capacity insufficient for the application.Refer to the Instrumentation Bulletin No.ID2-8000-3800 correcting Cv calculations based on fluid viscosity, and refer to No. PD2-8110-0500 for valves with such micro Cv values as 0.01, 0.04 or 0.1. Actuator Positioner Hand wheel P/P I/P Top Side PSA1 VPE/HTP AVP/HEP THM SHM HA2 HTP AVP/HEP THM SHM