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Graphite Gaskets Water Level Gauge Glass With Ball Check Valve , 320×34×17mm

Liaoning Ruiland Science & Technology Co., Ltd.
Liaoning Ruiland Science & Technology Co., Ltd.
City: Dandong
Province/State: Liaoning
Country/Region: China
Tel: 86-415-2812775
Contact Person:
Mr Zhou

Graphite Gaskets Water Level Gauge Glass With Ball Check Valve , 320×34×17mm

Brand Name : RST
Model Number : ULB-T150L
Place of Origin : China
MOQ : 1
Price : negotiation
Payment Terms : T/T, Western Union
Delivery Time : 10-30 work days
Packaging Details : Wooden packaging
Glass plate dimensions : 320×34×17mm
Flange Centre distance L : 500mm,800mm,1100mm,1400mm,1700mm,2000mm
Body : φ56×13
Scale : 10mm
Gasket : Graphite gaskets
Valve : Ball-check valve
Ball-check valve working pressure : ≥0.3MPa
Certification : ISO9001
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ULB-T150L Large Chamber Transparent Glass Level Gauge with φ56×13 and Ball-check valve

Product specification



Glass materialBorosilicate
GasketGraphite gaskets
Visual rangeH=L -230mm
Nominal pressure≤1.6Mpa
Heating steam jacket jointsR3/8 or special requirements
Heating steam pressure≤1.0MPa
Operating temperature-20℃~+200℃
Wetted material20 304 or special requirements
Material of coversZG240
Thickness of covers18mm

Double-screw Bolt

Vent and drain outletM12×1.5(female thread) or valve


ULB –T150L are designed to give an accurate liquid level reading of liquids that have a tendency to surge or boil. When the liquid being gauged has an usually low boiling point, the gauge and valves should be insulated and the gauge equipped with non-frosting unit. ULB –T150L are of flat glass reflex or transparent design. The liquid chambers is constructed of heavy tubing, rustproofed and carefully slotted and machined to provide plain seats for the gaskets and glass assemblies.

Working principle

Transparent level gauges are always fitted with two plate transparent glasses between which the fluid is contained. The fluid level is indicated as the result of the different transparency of the two media and in some cases, by conveying upwards on to the surface of separation (between liquid and gaseous substances) a source of light located at the back of the gauge.


- Reducing the boiling effects of entrained gas being released under lowered pressure;
- The liquid itself being vaporized when pressure reaches a critical low point;
- Boiling caused by temperature exceeding the boiling point of liquid.


Reflex level gauges can be used in most of application and offer great advantages in terms of

- low initial cost

- low operating cost

- easy level reading

Reflex level gauges cannot be used in certain cases as for example:

- when the separation level between two liquids has to be read(interface);
- when besides the level indication, the observation of the liquid colour is required;
- when the process fluid is high-pressure water steam, since in this case the glass must be protected from the solvent action of the boiler water by using mica shields;


The main body of the sight glass level gauge, contains the liquid channel.
For the clamping of the sight glass plate
Flat gasket
Chambered sealing between the liquid channel and the environment
Sight glass plates per QB2112
Mechanical protection between cover and glass
Bolt, nut
Hold the forces form the internal pressure
Glass size
Standard lengths of sight glass plates per QB2112, width 34 mm, thickness 17 mm
Valve heads
Valve heads isolate the vessel from the sight glass level indicator. They consist of the valve body and the head piece. They are actuated by a valve with quick closing lever or hand-wheel. In general, they are fitted with a ball-check valve as a safety element.
Ball-check valve
The ball-check valve should prevent any major spillage from the sight glass level indicator in the event of any glass or mica breakage or other sizable leakge. For this purpose there is, under the valve seat(pressure>0.5bar).in this way, the flow is sharply reduced. The closing of the valve presses the ball back into its starting position.

Product Tags:

sight glass gauge


plate type level gauge

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