*大工作压力： 50（Mpa） 型号： 712.15.100 732.15.160
精度等级： 2.5 适用范围： -40-80度
品牌： WIKA/威卡 加工定制： 是
外形尺寸： 100（mm） 量程范围： 0-1725mbar（kPa）
WIKA 712.15.100 732.15.160
低温行业用铜差压压力表 无粘稠液体
Differential pressure gauge
Model 712.15.100, Cu-alloy
Model 732.15.100, stainless steel version
Fig. top: Differential pressure gauge model 712.15.100
Fig. centre: Option valve manifold with working pressure indication
Fig. bottom: Option adapter for flange mounting
Applications
■ Level measurements in closed tanks, particularly in cryotechnology
■ Filter monitoring
■ Monitoring and control of pumps
■ For gaseous and liquid media that are not highly viscous or crystallising and have no suspended solids
Special features
■ Differential pressure measuring ranges from 0 … 80 mbar to 0 ... 1725 mbar
■ High working pressure (static pressure) of 50 bar
■ Overpressure safety either side up to 50 bar
■ Very compact design
■ Optionally compact valve manifold with working pressure indication
Description
These high-quality gauges are characterised by their compact and robust design and are primarily used for level measurement on liquid gas tanks.
An optional valve manifold for flange mounting with working pressure indication makes the central measurement of both level and working pressure possible in the one instrument.
The level display can be supplied with an optional, integrated 4 … 20 mA, 2-wire transmitter. Switch contacts for level and working pressure, as well as a transmitter for the working pressure can be retrofitted on site.
The standard centre distance of 37 mm between the process connections can be adapted to a custom centre distance of 31 mm or 54 mm using adapters for flange mounting.
Design and operating principle
Pressures p1 and p2 act on the media chambers ⊕ and ?, which are separated by an elastic diaphragm (1).
The differential pressure (Δp = p1 - p2) leads to an axial deflection of the diaphragm against the measuring range spring (2).
The deflection, which is proportional to the differential pressure, is transmitted to the movement (5) in the indicating case (4) via a pressure-tight and low friction lever mechanism (3).
Overpressure safety is provided by metal bolsters (6) resting against the elastic diaphragm.
Illustration of the principle
Mounting according to affixed symbols,
⊕ high pressure and ? low pressure
Standard version
Differential pressure gauge
Model 712.15.100
Model 732.15.100
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