HG5-G glass tube liquid level gaugeDetailed product description：

The HG5-G glass tube liquid level gauge is a direct reading liquid level measuring instrument suitable for on-site detection of liquid positions in general liquid storage equipment in industrial production processes. It has a simple structure and accurate measurement, and is a traditional on-site liquid level measurement tool. The liquid level gauge is equipped with a needle valve at each end. When the glass tube breaks due to an accident, the needle valve automatically closes under the pressure of the container to prevent the medium in the container from continuing to flow out. The HG5-G glass tube level gauge is equivalent to the original standardized product HG21592-95 "Glass Tube Level Gauge" by the Ministry of Chemical Industry.

technical indicators
Nominal length (L): 500-1400 mm
Transmittance length (L0): 350-1250 mm
Maximum working pressure: 0.6 1.0 1.6 MPa
Maximum operating temperature: ≤ 200 ℃ (excluding PP)
Connection flange size: DN20
Automatic closing pressure of needle valve:>0.2 MPa
Glass Tube Technical Standard: QB776-80 "Glass Plates and Glass Tubes for Liquid Level Meters"
Note: If there are special requirements, they can be raised at the time of ordering.

Installation Instructions
Nominal length (L)
Allowable tolerance: ≤ 1/1000 (total length ≤ 3mm)
Verticality of flange center connection line: ≤ 4/1000
Distribution shape of flange connection holes: square □
Steam interface size: M16 × 1.5 (internal thread)
Maximum vapor pressure: 0.6MPa