Level and Flow Measurement

+86 28 8701 3699


HOME> News

Contact us

E-mail: sales@vacorda.com

Factory:    0813-2629091



ChengDu:  028-87362258


After-saler: 0813-3212061

Address: Guanghua Rd, Qingyang Dist, Chengdu, Sichuan Province, China

Installation Tips For The Glass Level Gauge

Author:vacorda    Source:www.vacorda.com    Date: 2020-05-26 16:13:56

Working principle:

The glass plate type liquid level gauge is designed based on the principle of the connecting device. The liquid path composed of the glass plate and the main body of the liquid level gauge is connected to the container to be measured through the flange or taper pipe thread of the connecting pipe to form the communicating device. The liquid level is the same as the liquid level in the container, ie the liquid level height.


The needle valves at both ends of the liquid level gauge not only function as a shut-off valve, but the internal steel ball has the function of a check valve. When the liquid level gauge accidentally breaks and leaks, the steel ball can automatically close the liquid channel under the action of the medium pressure. Prevent large amounts of liquid from flowing out and play a role in safety protection. The liquid level gauge can achieve the functions of anti-corrosion, thermal insulation, anti-frost, and lighting by changing the material of the parts or adding some auxiliary components. Widely used in petroleum, chemical industry, electric power, gold, medicine and other fields.



u The reading is clear, intuitive and reliable.

u Simple structure and convenient maintenance.

u Durable, it is an ideal instrument for observing the liquid level in various medium and low pressure containers.


Technical Parameters:

n Nominal length: (installation center distance): 0 3000 2000mm

n Recommended nominal length: 550, 850, 1150, 1450, 1750mm

n Material: carbon steel, 304, 316L

n Nominal pressure (MPa): light transmission type: 2.5, 6.3Mpa; Reflective type: 4.0Mpa; Sight glass type: 0.1Mpa, 0.6Mpa;

n Working temperature: 0 250

n Connecting flange: DN20 (3/4 ") Type A, B-HG20592; type C-HG20615-09

n Heating steam pipe interface: RC1 / 4 internal thread

n Heating steam pressure: 1.0MPa

n Steel ball sealing action pressure: 0.3MPa


Precautions for installation and use


1. During transportation, handling and installation of the glass level gauge, do not hit or knock to prevent the glass tube and glass pieces from breaking.

2. After installation, when the medium temperature is very high, do not open the valve immediately. It should be preheated for 20-30 minutes. After the glass tube has a certain temperature, slowly open the valve. Valve opening procedure: first slowly open the upper valve, then slowly open the lower valve, so that the measured medium slowly enters the glass tube.

3. When using, the dirt on the inner and outer walls of the glass tube should be cleaned regularly to keep the liquid level displayed clearly. Cleaning procedure: first close the upper and lower valves connected to the container, open the drain valve, drain off the residual liquid in the glass tube, use an appropriate cleaning agent or use a long rod brush to wipe and remove the dirt on the inner wall of the tube.

4. If the glass is broken or the scale is serious and needs to be replaced, specific steps: remove the lower body, unscrew the nuts and nuts at both ends, use a wooden stick to knock the quartz glass tube from one end to the other end, and remove the graphite ring. Install the new quartz tube, and then put the graphite ring on the quartz tube, insert it into the watch body at an equal distance, tighten the nuts and nuts at both ends, and confirm that there is no leakage, then it can be put into operation.



Guanghua Rd, Qingyang Dist, Chengdu, Sichuan Province, China 备案号:蜀ICP备13021392号-1