8300 Series Available Orifice Sizes

API ORIFICE SIZE ORIFICE DIAMETER (in) ORIFICE AREA (sq in) Kd (gas) Kd (liquid) SLOPE FLOW FACTOR MINIMUM SET PRESSURE (psig) MAXIMUM SET PRESSURE (psig)
J 1.350 1.431 0.808 0.637 21.2 34.62 15 1000
K 1.650 2.138 0.741 0.62 29.03 50.95 15 500

Elastomer Materials

Material Durometer Temperature Set Pressure
Min Max Min Max
Viton 90 -15 400 50 3000
Viton 50 -15 400 15 150
HNBR 80 -25 325 15 2500
EPDM 80 -70 250 15 2500
TEFLON - -420 450 250 5500