Perrygraf Sterer Hydraulic-Pneumatic Pressure Drop Calculator

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Country of manufacture: USA,            Date of manufacture: ____
Overall length: 21.5 cm,          Width: 8.8 cm.,           Weight: 35.4 gms.
Materials: plastic shell with cardboard slide
Cursor: 3.7 X 9.1 X 0.3 cms; All-plastic, wrap-around; lines = one on front + indicators for Discharge Coefficient; one on back + indicators for Temp, Fluid, & Pressure
Scales: 21, specialized
Front: Orifice Pressure Loss/Tubing Pressure Loss [ Flow, Tube Size ] Friction Factor, Orifice Diameter, Friction Factor [ T°F (Mil-H-5606), T°F (OS-45-1), T°F (Mil-H-8446A = Oronite 8515), T°F (Skydrol 7000), Flow ] Tube Size
Back: Percent of Upstream Pressure Loss (Orifice/Tubing) [ Line Length, Pressure Upstream ] Orifice Diameter [ Temp Correction °F (Orifice/Tubing), Actual Weight Flow ] Tube Size
Condition: C5-C6 (Signs of normal to heavy use; cursor taped together at bottom edge)
Came with: Black plastic slipcase labeled "Sterer", instruction card

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