The 1227 series dual scale Flex Tube U-shaped tilt pressure gauge can directly read a wide range of differential pressure on the right side, or read a small range of differential pressure at the bottom after tilting. Simply tilt the differential pressure gauge until the liquid level reaches zero. No horizontal bubble is required to calibrate the levelness, the differential pressure gauge is fixed on the surface of the metal pipeline with a magnetic card.

This is the most widely used differential pressure gauge and has a low price. It has two reading ranges: as a U-tube differential pressure gauge, it can measure 0 to 16 inches of water column, and as an inclined differential pressure gauge, it can measure -0.20-0-2.6 inches of water column. The range reading of the 1227M (metric) model is 0 to 400 mm water column and -5-0-70 mm water column. The operating instructions are printed directly around the scale.

• ● Indicator tube - a sturdy plastic tube with a transparent outer diameter of 0.4 inches. When used as an inclined differential pressure gauge, the pressure connection end is bent to provide overpressure protection. 4-1/2 'x 3/8 "hoses are used to connect pressure sources.

• ● Scale - white plastic, 21 inches long. The zero point can be precisely adjusted.

• ● Scale markings - the large scale is 1 ", the high small scale is 0.2", and the low small scale is 0.02 "(if it is metric: the large scale is 50mm, the high small scale is 10mm, and the low small scale is 1mm). Using black silk screen printing on a white backboard and organic glass film coating, it is durable and long-lasting.