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Vintage MUESSCO “Sure Check” Pressure Drop Calculator by Mueller Steam Specialty.
Industrial slide calculator used for valve sizing and pressure drop calculations. Includes rear valve ordering guide with material and temperature ratings.
©1982 Perrygraf. Made in U.S.A.
• Industrial engineering calculator
• Sales rep field tool
• Valve sizing & pressure drop calculator
• Dual-sided with valve ordering guide
All sliding components are intact and move properly. No cracks or structural damage observed. Light cosmetic wear consistent with age.Main slide present
• Side slider intact
• Back “Valve Ordering Guide” section intact
• No cracks
• Corners good
• Light age toning
• Clean printing
• All windows intact
Condition is very solid.
A great piece of industrial engineering and steam valve trade history.
# 0225
