Glass plate level gauge

Glass plate level gauges can be used to directly indicate the liquid level height in sealed containers, with the advantages of simple structure, intuitive reliability, and durability. However, the medium in the container must not corrode steel, steel paper, and graphite pressure rings. The HG5 glass plate level gauge is produced according to the original Ministry of Chemical Industry HG5-1364~1370-80 standards and is suitable for directly indicating the liquid level of various media in towers, tanks, tanks, boxes, and other containers. Safety steel balls are installed inside the upper and lower valves of the instrument. When the glass is accidentally damaged, the steel balls can automatically close the liquid flow channel under the pressure inside the container to prevent the liquid level from continuing to flow out. There are blocking hole screws at the valve end of the instrument, which can be used for sampling or for releasing residual liquid in the instrument during maintenance. According to the principle of the connector, the actual height of the liquid level inside the container is directly displayed through transparent glass.

Structural principle

The instrument is equipped with M27 × 1.5 or ZG3/4 "threaded joints on both the upper and lower valves, which are connected to the container through flanges to form a connector. The height of the liquid level in the container can be directly read through the glass plate.

characteristic

The reading is clear, intuitive, and reliable.

● Simple structure and easy maintenance.

Durable and long-lasting.

Main technical indicators

Measurement range (installation center L): 500, 800, 1100, 1400, 1700... mm.

Work pressure: 4.0MPa

Working temperature: ≤ 200℃

Installation form: flange installation PN4.0 DN20.HGJ-47-91

Threaded installation with external thread G3/4 "(or M27 × 1.5)

Material: Carbon Steel, Stainless Steel

Heat tracing steam pressure: 0.6MPa

Steam jacket joint: G1/2 "external thread

Self sealing pressure of steel ball: 0.2MPa

Main technical indicators

Measurement range of external dimensions (installation center distance L): 300, 500, 800, 1100, 1400, 1700mm.

Work pressure: 2.5, 4.0, 6.3 MPa, 0.6 MPa (for R-type)

Material: Carbon Steel, Stainless Steel

HG5 glass plate level gauge

HG5 glass plate level gauge

Working temperature:- 20~+200℃

Automatic closing pressure of steel ball: ≥ 0.2MPa

Accompanying steam pressure: ≤ 0.6MPa steam jacket joint: G1/2 "external thread

matters needing attention

To ensure automatic sealing, the pressure of the medium inside the container should be greater than 0.2 MPa. When opening the upper and lower valves, the valve stem should retract at least 4 revolutions to prevent the steel ball from touching the top of the valve stem when sealing the door.

Glass material requirements

1. The glass of the liquid level gauge should have appropriate chemical and thermal stability, good mechanical strength, and a small coefficient of expansion;

2. Color: The color of the glass panel should be colorless, transparent, or slightly light yellow or light green.