Overview
The UB-1 and UB-2 series glass plate level gauges can be used to directly indicate the liquid level height in sealed containers. They have 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.
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.
The instrument is equipped with steel balls inside both the upper and lower valves. When the glass plate is damaged due to an accident, the steel balls will block the channel under the pressure inside the container, so that the container will automatically seal and prevent the liquid inside the container 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.
feature
Clear, intuitive, and reliable readings.
Simple structure and easy maintenance.
Durable
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
Selection specifications

Model number	Name	Purpose:
UB-1	Transparent glass plate level gauge	Generally used for colorless and transparent liquids with good lighting conditions
UB-2	Transparent glass plate level gauge with steam jacket	Equipped with a steam heating jacket on the transparent type
UB-3	Reflective glass plate level gauge	Generally used in places with colored liquids and good lighting conditions
UB-4	Reflective glass plate level gauge with steam jacket	Equipped with a steam heating jacket on the reflective surface
UB-5	Frost proof glass level gauge	Used for low-temperature media with a device attached to prevent surface condensation caused by low-temperature media
UB-6	Illuminated glass plate level gauge	Transparent type with lighting device attached

Model, Specifications









Installation and usage instructions
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.
Ordering Instructions
Please provide the following parameters when placing an order:
● Model specifications, connection dimensions
Measurement range L, working pressure, working temperature
Material requirements
Is there a matching supply of flanges, bolts, nuts, sealing washers and other accessories on the container