Dwyer 422-250MM Durablock Inclined-Vertical Manometer

Overview

The Dwyer 422-250MM Durablock is a double-column inclined-vertical manometer engineered for precision measurement of low differential pressures in laboratory and test applications. The 1-1/4" thick solid acrylic plastic body is virtually unbreakable and maintains dimensional stability without requiring recalibration.

Key Features

• Double-column design with 6-1/2" inclined scale
• Solid acrylic plastic body, 1-1/4" thick, unbreakable and distortion-free
• 3/16" bore diameter with ±0.0002" accuracy, permanently free of bends
• Ground glass bubble level, 1-1/2" long, sensitive to 115-125 sec./2 mm
• Parallax-free reading via polished aluminum scale reflection system
• O-ring sealed fluid level plunger for easy zeroing
• Inclined range: 0-25 mm w.c.
• Vertical range: 30-250 mm w.c.

Applications

• High-accuracy laboratory pressure testing and measurement
• HVAC system diagnostics and balancing
• Low-pressure gas and air flow measurement