20DAX40 High Pressure U-Type Manometer 高壓U型壓力計

Model 20DAX40 Construction
The manometer body has an aluminum channel to which stainless steel and blocks are connected. The wetted parts are type 304SS. The glass tubing is gland packed with viton gaskets at each end block and is supported at spaced intervals to prevent tube distortion at elevated pressures. In place of the conventional U-tube of one continuous glass length, two straight length individual tubes are used in this manometer. To connect the two vertical glass tube legs to form the U, the lower manometer end block is cross-drilled.
The manometer head fastens to the body by a single nut and is quickly and easily removed when necessary. This exclusive Meriam clean-out head feature permits cleaning and filling of the U-tube without disconnecting the piping to the manometer head. A ¼” female pipe connection is provided out the left and right sides of the clean-out head as standard. Pressure connections at rear or top of head can be furnished when specified. Manometer clean-out heads of cast iron, stainless steel or PVC are available for special corrosive applications.
The manometer scale is located between the tube legs and overlaps the tube legs to a degree that eases reading at the meniscus position. The scale is readily adjustable for zero indicating fluid level.
The simple engineered method of supportinThe manometer scale is furnished with a white, non-glare satin background with black graduations and characters. The scale is adjustable for zero indicating fluid. A transport cover seals the unit from dust and moisture and affords protection to the operator should excessive pressures cause an indicating tube to fracture.
Standard pressure connections are ¼ inch female pipe out the top of the upper end block. A drain plug out the bottom of the lower end block permits draining of the manometer indicating fluid and cleaning of the glass indicating tubes. The instrument finish is a durable textured, black urethane.

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