355mm UV lamp quartz sleeve is a precision quartz glass sleeve designed specifically for UV sterilization systems. Its core function is to act as a protective shell for ultraviolet lamps (especially low-pressure mercury lamps), ensuring that ultraviolet rays, especially the efficient UVC band (253.7nm), can penetrate and act on disinfection targets to the maximum extent possible, while protecting the lamp itself from external environmental factors such as moisture and corrosive gases.

This sleeve is made of high-purity synthetic quartz glass material, precision processed, and has a standard length of 355mm (± 1mm), which can perfectly match mainstream brands of 55W-65W ultraviolet lamps on the market. It is not only the "guardian" of UV disinfection equipment, but also the "core window" that ensures the disinfection efficiency of the entire system.

Frequently asked questions

How high temperature can this 355mm quartz sleeve withstand?

Our quartz sleeve has a softening point of up to 1732 ℃ and can work stably in an environment of 1100 ℃ for a long time. Its instantaneous temperature resistance can reach 1450 ℃, fully meeting the heat dissipation requirements of high-intensity ultraviolet lamps.

Do you offer customized sizes other than 355mm?

Yes, we support full customization. In addition to the standard 355mm length, we can customize the outer diameter (from a few millimeters to several hundred millimeters), wall thickness, and special flange or interface shapes according to your needs.

How to install and maintain quartz sleeves?

The product is usually used in conjunction with silicone sealing rings or PTFE gaskets for easy installation. Due to the extremely high chemical inertness of quartz, daily use of alcohol to wipe surface dirt can restore transparency, and maintenance costs are extremely low.

Does the 355mm length support cutting or secondary processing?

Quartz has high hardness and brittleness, and it is not recommended for users to cut it themselves. Please provide accurate drawings before purchasing, and we will use precision diamond tools to process precise dimensions within a tolerance of ± 0.5mm for you.

What core problems can it solve?

Low efficiency issue: Ordinary glass has strong absorption of UVC ultraviolet rays, resulting in a significant reduction in UV output power. The extremely high UVC transmittance (>90%) of quartz tubing ensures almost lossless output of ultraviolet energy, directly improving sterilization efficiency.

Equipment lifespan issue: Chemicals in water and air can directly corrode and contaminate the glass on the surface of UV lamps, leading to premature aging and worsening of light decay. The quartz sleeve completely isolates the lamp sleeve from the outside world, effectively extending the service life of expensive UV lamps.

Unstable operation problem: Under conditions of water temperature changes or environmental temperature fluctuations, the excellent thermal stability of quartz tubing ensures that it will not rupture due to thermal expansion and contraction, ensuring the continuous and stable operation of the disinfection system.

High maintenance cost issue: When the casing becomes dirty due to scale or pollutants, simple cleaning or replacement of the casing is sufficient, without the need to touch or replace the core UV lamp sleeve, greatly reducing the complexity and cost of maintenance.

Details and features

1. Excellent optical performance

High UV transmittance: At the critical wavelength of 253.7nm, the transmittance reaches over 90%, ensuring efficient output of sterilization energy.

Low hydroxyl content: Using a synthetic process, the hydroxyl (OH ⁻) content is extremely low, effectively reducing the absorption of ultraviolet light in the 185nm wavelength band, preventing ozone generation and aging of quartz glass itself.

2. Excellent physical and chemical properties

Heat shock resistance: With an extremely low coefficient of thermal expansion, it can withstand drastic temperature changes without cracking (such as instant cold water flushing).

High temperature tolerance: The softening point can reach up to 1700 ℃, and the long-term working temperature can reach 1100 ℃, fully meeting the high temperature environment generated by ultraviolet lamps.

Corrosion resistance: It has excellent resistance to most acidic and alkaline substances except hydrofluoric acid and hot phosphoric acid, and is suitable for complex chemical environments.

3. Precise dimensions and specifications

Standard length: 355mm (other lengths can be customized according to customer needs)

Outer diameter/inner diameter: Common specifications such as Φ 23mm/Φ 20mm, Φ 28mm/Φ 25mm, etc. can be accurately matched according to the size of the lamp sleeve and the structure of the reactor.

Uniform wall thickness: Precise control of wall thickness ensures consistent optical performance and reliable mechanical strength.

End processing: Various port processing methods can be provided, such as flame polishing (smooth and round, high mechanical strength) or precision grinding (easy to precisely connect with seals), to meet different installation and sealing requirements.

Main application areas

355mm quartz tubing is an indispensable component in the fields of water, air, and surface disinfection.

Water treatment and disinfection:

Municipal water supply: Direct drinking water through pipelines, disinfection of secondary water supply in residential areas.

Wastewater treatment: Deep disinfection of reclaimed water and discharged water in wastewater treatment plants.

Food and beverage industry: sterilization of production water, cleaning water, and bottled water.

Electronics industry: Microbial control in ultrapure water preparation systems.

Aquaculture: Sterilize aquaculture water to prevent fish diseases.

Swimming Pool: Replace chlorine gas to achieve water disinfection without chemical byproducts.

Air purification and disinfection:

Hospitals and laboratories: Air circulation disinfection for operating rooms, sterile rooms, and biosafety cabinets.

Air disinfection in central air conditioning ducts of schools, offices, and shopping malls in public places.

Household appliances: UV sterilization modules inside high-end air purifiers, air conditioners, and dehumidifiers.

Surface disinfection:

Food packaging: online sterilization of canned food, beverage bottles, and packaging material surfaces.

Medical equipment: Disinfect the surfaces of surgical instruments, containers, etc. by ultraviolet irradiation.

Our customized services

We are well aware that different application scenarios have unique requirements for quartz casing. Therefore, we provide flexible and diverse customized services to ensure that our products can be perfectly integrated into your system.

Size customization: In addition to the standard 355mm length, we can customize sleeves of any length, outer diameter, and wall thickness according to your equipment design requirements.

Material upgrade: For special requirements such as the need for extremely high vacuum environments or resistance to specific metal vapor corrosion, ozone free quartz glass (blocking the 185nm wavelength band) or titanium/cerium doped quartz glass (filtering specific wavelengths) can be provided.

Port customization:

Customizable blind sleeve design with one end open and one end closed.

The port can be precisely ground (such as standard ports S29/32, S40/50, etc.), making it easy to quickly seal and connect with the reactor.

It can be drilled or welded at specific positions on the pipe body for temperature probe insertion or fluid inlet and outlet.

Coating service: Anti scaling coating (such as TiO ₂) can be applied to the outer wall of quartz casing to effectively reduce scale adhesion, extend cleaning cycle, and maintain long-term high transmittance.

Contact us immediately for exclusive quotes and technical solutions!

Make the 355mm UV lamp quartz sleeve the solid foundation of your efficient and reliable disinfection system.

Luverre Quartz is a manufacturer specializing in quartz sleeves and other quartz items.We have over 18 years experience with the production of quartz sleeves, we will be your reliable partner on quartz sleeves and other quartz items.

Luverre Quartz can manufacture customized quartz sleeves in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz sleeves, opaque quartz sleeves, milky white quartz sleeves, red quartz sleeves, and so on.