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Welded sight glass level gauge

Product Name: Glass Level Gauge
Exhibitors products: Level Meter / liquid level switch / liquid level transmitter / stainless steel valves ¨C Tianjin U-ideal Instrument Co., Ltd


For viewing the internals of vessels, silos, reactors etc.; mainly used as fluid level indicator.


The base frame of rectangular sightglass fittings is welded onto or into the vessel wall. Then the sightglass plate together with two seals is firmly bolted down by the cover frame and a set of fastening bolts.

Operating Conditions:

It is strongly recommended to check the strength of reinforcement around the cutout in combination with the vessel wall . Pressure: 16 bar, vacuum


100¡ã C with soda lime glass, DIN 8903

243¡ã C with borosilicate glass, DIN 7081

Those temperatures refer to unprotected glass plates, i.e. without mica protective sheet.

structure of welded sight glass fittings

Reflex Level Gauges 
1.Reflex Level Gauges are ideal for clean service and non-viscous applications 
2.Provides an easy to read black-silver indication (black = liquid, silver = vapour). 
3.Solid construction and tempered borosilicate glass 
4.Also known as ¡°prismatic¡± level gauges 

Transparent Level Gauges 
1.Transparent Level Gauges are ideal for dirty, corrosive services and process steam 
2.Solid construction, using tempered borosilicate glass windows with the option of mica shields 
3.Also known as a ¡°through-vision¡± gauge or ¡°clear¡± level gauges 
4.An illuminator is always recommended to be fitted for easy reading of the gauge 

Options and accessories: 
1.Various valve options including: •Integral, union and OS&Y bolted bonnets 
•various connection styles
•offset pattern for easy cleaning
•standard top/ bottom connections or side hook-up for increased visible length
•safety shut-off ball checks
•regrindable / renewable seats
•bleed fittings

2.Speciality materials of construction 
3.Illuminators for improved visibility

4.Non-frost extensions for low temperature service 
5.Aluminosilicate glass for high temperature service 
6.Expansion coils for high temperature service 
7.Insulation jackets for the gauge and valves 
8.Welding-pad gauges 
9.Off-shore coatings

One, Range of application

Serious Glass Sheet Level Gauge is a kind of sight glass level gauge which can show the liquid level directly. These type level gauges are widely used in chemical industries.


Two, TBS-A Transparent level gauge

1) Measure range: 500~1700mm

2) Working temperature:¡Ü250¡æ

3) Working pressure: ¡Ü4MPa

4) Meter material: carbon steel, SS304 or SS316.

5) Transmit color: nature color

6) Ordinary globe valve or 1/4 opens or close valve.


Three. TBS-F Reflex level gauge

Working pressure: 2.5¡¢4.0¡¢6.3Mpa¡¢10Mpa (temp.¡Ü100¡æ)¡¢0.6Mpa(suitable for R type).

Material: carbon steel, stainless steel

Working temperature: -160~+400¡æ

Pressure for steel ball shut off automatically: ¡Ý0.2Mpa

Steam pressure: ¡Ü0.6Mpa. Steam sheath joint: G1/2¡åmale thread

Four.TBS-S welded type sight glass level gauge


2)Working pressure: ¡Ü1.0Mpa        

3)Working temperature: ¡Ü250¡æ

4)Welded size:80¡Á366mm.

5)Material: CS, SS304.


Direct display, high accuracy in indication, is a reliable level gauge.

Simple structure and less maintains

Safe to use and can service for a very long time.

Adds£ºJinnan Industrial Park, Tianjin, China ¡¡Tel£º+86 22 88971536 ¡¡Fax£º+86 22 88971536
Copyright level sensors and flow meters Tianjin U-ideal Instrument Co., Ltd ( Hebei Xukang Meter Manufacturing Co.,Ltd) all right reserved.

Tianjin U-ideal Instrument co., ltd is one of esteem company with collection of scientific research, development and sales. We have abundant technical capacity, special scientific research teams with advanced producing and checkout equipment.

Tianjin U-ideal Instrument Co., Ltd produce and sell Magnetic Level Indicator, bi-color quartz glass tubular level gauge, liquid level switch, float switch, level sensor, level transmitter, level switch, tank gauge, water gauge, liquid level instrument, ultrasonic level sensor, flow meter, PD flow meter, oval gear flow meter, dual-rotor turbine flowmeter, duplex rotor meter, vortex flow meter, turbine flowmeter, electromagnetic flowmeter, metal rotary flow meter and valves,oil/water industrial control systems.

We are TIANJIN U-IDEALINDUSTRIES COMPANY , have accumulated abundant experience especially in high temperature and high pressure liquid level meters ,and antiseptic liquid level gauge .we also made to orders of non-standard liquid level meters to satisfy different customers .those products has been used by many enterprises of all walks of chemical,industries, petroleum ,electricity, food, light, medicine, metallurgy, papermaking etc.. and our products have been certified by quality system ISO9001£º2000.

Tianjin U-ideal Instrument Co. are also engaged in flowmeter trade. Such as gas flowmeter and liquid flowmeter with the type of explosion-proof and others.