Rudolph Linear Resistors
Flow Resistance Standards, Linear type, available in standard ranges of 5, 20, 50, 200, 500 & 1000 cmH2O/L/S. Custom resistor ranges available on request. Resistor specifications meet ANSI Z79.7-1976 and ASTM F920-85. Bi-directional, stainless steel resistance elements, 22mm OD ports, minimal dead volume. Calibration data supplied. Re-calibration service provided.