The R-K AOV series airvalve features a compact thermoplastic valve available in six models to handle a multitude of piping systems functions.
  This patented valve is designed so there is no metal contact with the fluid, and can be operated in any position.
  Air actuated at 40 to 80 PSI.
  Direct acting full flow with top entry for easy maintenance and minimum water hammer.
  Suitable for most harsh chemicals, pollution control, wet processing stations, plating equipment, chemical processing and water treatment applications.

Operating Pressure Range            Vacuum to 150 PSIG     

Material           ValveBody        PVC Type 1, Grade 1

                                    Polypropylene
                                    PVDF
                                    Teflon
                       Seal         EPDM
                       Seal         Viton(R)
                       Seal         Kalrez(R)



Temperature Range                0 F to 140 for PVC
                                 0 F to 180 F for POLYPRO
                                 0 F to 280 F for PVDF
                                 0 F to 340 F for TEFLON



Valve ports               1/4" to 1" Valve FNPT
                          1.5" to 2" Valve MPT
                          All valves are fully ported



Valve Types:                                    

Type 1: Normally Closed
Type 2: Normally Open
Type 3: Air to open - Air to close (No spring action)
Type 4: Bottom flow control (has an adjusting screw located on
        bottom to limit the flow, apply air to open to pre-set flow rate; 
        airoff, valve returns to normally close position)
Type 5: Top flow control (an adjusting screw located on top to 
        permit a constant pre-set flow, apply air to full flow,
        air off to return to pre-set flow)
Type 6: Top and Botton flow control (combination of Type 4 and Type 5)


Mounting Method                                    (4) 1/4" -20 tapped holes
                                                   standard machine valve body.
                                                   (1/4" to 1.00")
                                                   (2) cut-out slots on molded
                                                   valve body (1/2" to 1.00")