5/8”OD 10 3/8”Length Red line sight glass Redline Tubular Gauge Glass

Short Description:

Qingdao Link Glass can offer as Red Line, Standard, Heavy Wall, High Pressure, Diameters range from 1/2″ OD to 1 1/2″ OD. End finishes may be cut, ground, or fire polished depending on application. Pressure ratings is depending on end finish, diameter, and length required. Heat resistant up to 400 degree centigrade(borosilicate glass) and 1100 degree centigrade(quartz glass).

Tubular sight glass is also be named Glass tube, Glass pipe, tubular sight glass, Tubular gauge glass in many country, can be divided into standard size and heavy wall size according to the wall thickness. The standard size tubular glass is commonly used in low pressure boiler, tanks and some other low pressure instruments. The heavy wall kind is suitable to high pressure environment, such as crude oil and water, gas flowmeter or acid and alkali containers.
The material of tubular sight glass
1)borosilicate glass tube
2)quartz glass tube
Borosilicate glass tube and quartz glass tube can work in the acid and alkali media, at the same time borosilicate glass and quartz glass can bear in high pressure and temperature environment.
Specification
• Material: soda-lime glass, borosilicate glass, quartz glass.
• Classification: standard, heavy wall.
• Wall thickness: 1-30 mm.
• Inside diameter: 1-100 mm.
• Outside diameter: 2-150 mm.
• Length: 30-300 mm.
• Max working temperature: 1100 °C.
• Max working pressure: 400 bars.
Features and Advantages
• Corrosion resistance
Glass material have stable chemical property. We have quartz glass and borosilicate glass for aggressive working environment.
• High working temperature and pressure
Our standard size tubular gauge glass is suitable in no pressure and low temperature environment. Our heavy wall kind tubular gauge glass can work safely in high pressure and high temperature environment for a long time.
• We can draw a red line on the tubular sight glass
The red line on the tubular sight glass can make the liquid level more clear for reading.
• Precise dimension
We can customize the tubular gauge glass according to the required dimension. We can achieve ±0.01 mm tolerance for accurate instruments application.
• Easy to clean
The tubular gauge glass can be cleaned easily by water. With suitable cleaning, the tubular gauge glass can be used as long as 10 years.
Application
1. Household electrical appliance
2. Environmental engineering and chemical engineering
3. Lighting
4. Solar Energy
5. Fine instruments
6. Semi-conductor technology
7. Medical technique and bio-engineering;
Polycarbonate tube:
max work temperature 120°C
can resist weak acid,weak base.
Can be yellow in the sunshine long time


  • Price: US $0.5 - 1000.0 / Piece
  • Min.Order Quantity: 1Piece
  • Supply Ability: 10000 Piece/per Month
  • Shipping cost: not free,normally i can get cheaper shipping cost for you.
  • Delivery time: base on your products if be customized or not.
  • Product Detail

    Borosilicate glass

    Aluminosilicate glass

    Quartz glass

    Product Tags

    Qingdao Link Glass can offer as Red Line, Standard, Heavy Wall, High Pressure, Diameters range from 1/2″ OD to 1 1/2″ OD. End finishes may be cut, ground, or fire polished depending on application. Pressure ratings is depending on end finish, diameter, and length required. Heat resistant up to 400 degree centigrade(borosilicate glass) and 1100 degree centigrade(quartz glass).

    High temperature up to 400 degree centigrade,pressure ratings depending on end finish, diameter, and length required.

    Tubular sight glass is also be named Glass tube, Glass pipe, tubular sight glass, Tubular gauge glass in many country, can be divided into standard size and heavy wall size according to the wall thickness. The standard size tubular glass is commonly used in low pressure boiler, tanks and some other low pressure instruments. The heavy wall kind is suitable to high pressure environment, such as crude oil and water, gas flowmeter or acid and alkali containers.

    Linkglass hold expertise in offering a wide range of Low Expansion Glass Tube. These are precisely designed and developed from unmatched quality components which make these extensively durable and reliable. Our devices are available in various range, dimensions and models following the precise demands and requirements of clients. We offer these tubes in various technical specifications.

    Borosilicate glass tube and quartz glass tube can work in the acid and alkali media, at the same time borosilicate glass and quartz glass can bear in high pressure and temperature environment.

    Borosilicate glass tube high temperature resistant up to 400 degree centigrade,quart glass tube up to 1100 degree centigrade.


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  • *Borosilicate glass

    Borosilicate Glass for circular sight glasses or tubular sight glasses
    Borosilicate glass is a kind of glass with silica and boron trioxide as the main glass-forming element. Borosilicate glasses become famous for having very low coefficients of thermal expansion, making them more resistant to thermal shock than soda-lime glass. borosilicate glass is fit to be used in sight glass lens,
    Borosilicate glass is ultra and clear glass with good thermal and chemical properties and outstanding transparent
    Parameters
    Dimensions(mm): 1200×600 ,1150×850 ,1150×1700.(other size upon request)
    Available thickness(mm): 1mm-25mm,we also can offer it if you want more thickness.
    Density (g/㎝3 ) (at 25℃): 2.23±0.02
    Co-efficient of expansion(α)(20-300℃): 3.3±0.1×10-6
    Softening point(℃): 820±10
    Identical temperature difference(K): 100 >300(Strengthening type)
    Maximum working temperature(℃): ≥450
    Refractive(nd ) : 1.47384
    Light transmission: 92%(thickness≤4mm;91%(thickness≥5mm)
    Application
    Circular sight glass lens
    Tubular borosilicate glass
    Appliance glass such as furnace, microwave, gas stove etc.
    Industry Glass such as sight glass, linings, etc.
    Lighting equipment (protective glass for high-power spotlights and other lamps)
    Photovoltaic module
    Optical filters
    Primary material for fully tempered glass
    Main properties
    High temperature stability
    Good surface quality
    Outstanding transparency in the visible, UV and IR ranges
    Can be tempered
    High chemical resistance
    Environmental engineering and chemical engineering (lining layer of repellence, autoclave of chemical reaction and safety spectacles);
    Our circular sight glass is required in all areas where the visual inspection of processes in vessels has to be ensured under pressure, at high temperatures or on exposure to chemicals. These sight glasses is made mainly from borosilicate glass, we also produce sight glass lens with alumino-silicate glass or quartz glass or sapphire glass

    *Aluminosilicate glass

    Aluminosilicate glass for boiler gauge glass
    Alumino-silicate glass is mainly composed of Si-Ca-Al-Mg and other alkali metal oxides through a scientific ratio combination, in which the content of K2O+Na2O ≤0.3%, belongs to the non-alkali aluminum silicate glass system, after high temperature tempering treatment with high temperature resistance, high pressure resistance, acid and alkali resistance and other excellent physical and chemical properties, is a variety of high pressure glass window excellent material.It is mainly used in power plant, petrochemical, nuclear power plant, deep-sea exploration equipment and other kinds of high temperature and high pressure steam package on the high pressure water level gauge glass window.
    Features
    Color: colorless or slightly yellow
    Shape: circular, rectangular
    Density: 2.62–2.67 g/cm3
    Transmissivity: 91.8%
    Refractive index: 1.5325 (yellow)
    Shock temperature: ≤ 370 °C
    Softening temperature: ≥ 920 °C
    Bending strength: 240–300 MPa
    Max working temperature: 550 °C
    Resistant pressure:1Mpa-32.0Mpa
    Size
    round sight glass:diameter:8mm-300mm
    Rectangle sight glass:8mm*8mm-300mm*300mm
    Linear gauge level glass:Max length 400mm
    Thickness:2mm-40mm

    *Quartz glass

    Quartz glass for round sight gauge glass or tubular sight gauge glass
    Normally,quartz glass is fused quartz is the widely usage in industry and home appliances.it is a glass consistant of almost pure silica in amorphous form,it’s purity up to 99.9% according to requirement.
    Advantages
    Softening point is 1730℃,long time work temperature 1100℃,short time work temperature 1400℃
    Shock thermal:taking out the glass from 1100℃ furnace into 20℃ water,no breakage three times.
    The visible light transmittance is more than 93%.
    Corrosion resistant:quartz glass can work in the intense acid and alkaline environment
    Synthetic Quartz Silica and Infrared Optical Quartz both used as the optical glass.

    Parameters:
    Property Typical Values
    Density 2.2×103 kg/m3
    Hardness 5.5 – 6.5 Mohs’ Scale 570 KHN 100
    Design Tensile Strength 4.8×107 Pa (N/m2) (7000 psi)
    Design Compressive Strength Greater than 1.1 x l09 Pa (160,000 psi)
    Bulk Modulus 3.7×1010 Pa (5.3×106 psi)
    Rigidity Modulus 3.1×1010 Pa (4.5×106 psi)
    Young’s Modulus 72GPa (10.5×106 psi)
    Poisson’s Ratio 0.17
    Coefficient of Thermal Expansion 5.5×10 -7 cm/cm•°C (20°C-320°C)
    Thermal Conductivity 1.4 W/m•°C
    Specific Heat 670 J/kg•°C
    Softening Point 1683°C
    Annealing Point 1215°C
    Strain Point 1120 °C
    Electrical Resistivity 7×107 ohm cm (350°C)
    Dielectric Properties (20°C and 1 MHz)
    Constant 3.75
    Sonic Attenuation Less than 11 db/m MHz
    Permeability Constants(700°C) (cm3 mm/cm2 sec cm of Hg)
    Helium 210×10-10
    Hydrogen 21×10-10
    Deuterium 17×10-10
    Strength 5×107 V/m
    Loss Factor Less than 4×10-4
    Dissipation Factor Less than 1×10-4
    Index of Refraction 1.4585
    Constringence (Nu) 67.56
    Velocity of Sound-Shear Wave 3.75×103 m/s
    Velocity of Sound/Compression Wave 5.90X103 m/s
    Neon 9.5×10-10
    Application:
    Circular sight glass
    Tubular sight glass