Shandong, China
Business Type:
Manufacturer/Factory, Group Corporation
Registered Capital:
1000000 USD
Plant Area:
>2000 square meters
Management System Certification:
ISO 9001, GMP
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workday
OEM/ODM Service
Sample Available
Russian Speaker

Reflex Gauge Glass, Sight Glass, Level Gauge Glass manufacturer / supplier in China, offering ISO Standard Borosilicate Reflex Gauge Glass, Reflex Gauge Glass, 13 Mm Flip off Cap with Different Colors and so on.

Gold Member Since 2012
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ISO Standard Borosilicate Reflex Gauge Glass

Get Latest Price
Min. Order / Reference FOB Price
100 Pieces US $10-50/ Piece
Port: Shanghai, China
Production Capacity: 5000PCS/Day
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Principle: FBG
Range: >0-30m
Measurement Accuracy: ±3mm
Accuracy: 0.1%
Kind: Glass
Structure: All in One

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Basic Info

Model NO.: HH Gauge 02
Warranty: 2 Year
Certification: CE, RoHS
Material: SS304
Process Temperature: -190~425℃
Name: ISO Standard Borosilicate Reflex Gauge Glass
Type: Reflex and Transparent
Property 1: Heat Resistant
Packing: Box and Carton
Samples: Available Within One Week
Property 2: Tempered
Shipment: by Sea, by Air, by Courier
Delivery Time: 20 Days
Payment: T/T, L/C at Sight
Trademark: HONHAI
Transport Package: Small Box Per Piece and Then Into One Carton
Specification: ISO
Origin: Jinan, Shandong
HS Code: 70154900

Product Description

A sight glass or water gauge is a transparent tube through which the operator of a tank or boiler can observe the level of liquid contained within.

gauge glass, made from high borosilicate 3.3 glass, has good performances:

High Hydrolytic Resistance
High Chemical Resistance
High Resistance to Thermal Shock


A level / reflex gauge is more complex in construction but can give a clearer distinction between gas (steam) and liquid (water). Instead of containing the media in a glass tube, the gauge consists of a vertically oriented slotted metal body with a strong glass plate mounted on the open side of the slot facing the operator. The rear of the glass, in contact with the media, has grooves moulded into its surface, running vertically. The grooves form a zig-zag pattern with 90° angles. Incident light entering the glass is refracted at the rear surface in contact with the media. In the region that is contact with the gas, most of the light is reflected from the surface of one groove to the next and back towards the operator, appearing silvery white. In the region that is in contact with the liquid, most of the light is refracted into the liquid causing this region to appear almost black to the operator. (from Wikipedia: )

Our level gauge glass include the following sizes:



ISO Standard Borosilicate Reflex Gauge Glass

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