How to clean a quartz sleeve?

Soak it in diluted citric acid or vinegar, gently wipe with a soft cloth, then rinse with clean water. Do not use abrasive brushes.

Can a cracked or scratched quartz sleeve still be used?

No. Scratches or cracks reduce UV transmission and may cause water leakage or lamp failure.

Are quartz sleeves compatible with all UV lamps?

No. They must match the lamp's length, diameter, and the reactor chamber size.

What properties make quartz sleeves ideal for UV systems?

High UV transmittance, high temperature resistance, excellent corrosion resistance, low expansion rate, and high mechanical strength.

Protective Quartz Tube for UV Lamps Shields Bulb From Water Damage

Name: Protective Quartz Tube for UV Lamps Shields Bulb From Water Damage
Brand: Ningbo Sunfine Environmental Technology Co., Ltd
SKU: 2148769072

Zhejiang, ChinaNingbo Sunfine Environmental Technology Co., Ltd

US$20.00

10 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Usage

Industrial use, Home

Shape

G-shaped

Wavelength

UV-C

Specification

Material

Glass

Certification

Purity

99%

Length

Custom

Transmision

Transport Package

Wooden Box

Specification

23mm

Trademark

SUNFINE

Origin

China

HS Code

8539490000

Key features

High Purity Material: Made of 99% purity fused quartz glass with low impurity content.

Customizable Length: Length can be customized to meet specific application requirements.

High UV Transmittance: Features 99% transmittance for efficient UV light passage.

Versatile Applications: Widely used in water treatment, photochemistry, and semiconductor crystal pulling.

Multiple Shape Options: Available in G-shaped, straight, round head, flat head, and pointed head.

CE Certification: Product meets CE safety and quality standards.

Corrosion Resistance: Excellent resistance to corrosion, moisture, and high temperatures.

One-Stop Solution: Provides quartz sleeves, electronic ballasts, and UV lamps for complete systems.

Company profile

Ningbo Sunfine Environmental Technology Co., Ltd

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2005-06-16Nearest Port: NINGBO, SHANGHAI, HANGZHOUAverage Response Time: ≤8.67hTerms of Payment: T/T, Western Union, Small-amount payment, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP

AI-Powered supplier vetting

SummaryNingbo Sunfine Environmental Technology Co., Ltd. is a China-based supplier established in 2005, identified as both a trading company and manufacturer/factory. It specializes in UV germicidal lamps, UVC lamps, amalgam lamps, quartz sleeves, and UV ballasts for water treatment, air purification, healthcare, and disinfection applications. The supplier states that it operates advanced production and testing equipment, has developed replacement lamps for brands including Trojan, Wedeco, Aquafine, Ozonia, and LIT, and has strong R&D and customization capabilities. It claims implementation of the ISO9001 quality system and CE/RoHS certification for most products. Export sales account for 90%, with Ningbo and Shanghai listed as nearby ports and standard quotation terms of FOB, CIF, and EXW. Evidence is insufficient to assess financial credibility, after-sales service capability, or specific customer cases.

Supplier typeThe supplier is identified as a limited company based in Ningbo, China, and is classified as both a trading company and manufacturer/factory. Its stated business focuses on UV lamp replacements and environmental solutions, indicating a hybrid manufacturing and trading model.

CertificationsSunfine states that it strictly implements the ISO9001 international quality system standard and that most of its products have CE and RoHS certification. This is explicit evidence of quality-system implementation and product certification coverage, although not every product is confirmed as certified.

R&D capabilitySunfine states that it has strong R&D capabilities, develops replacement lamps for multiple international brands, and uses advanced production and checking equipment. These claims directly support product-development and technical innovation capability.

Production capacityThe supplier is classified as a manufacturer/factory and reports advanced equipment for production and testing, including vacuum and high-frequency assembly technologies. It offers several UV product categories and states that off-peak orders can be fulfilled within 15 working days, while peak-season fulfillment may require 2–3 months, indicating established but seasonally variable production capacity.

Customization capabilityThe supplier explicitly states that it can source unusual products and deliver seemingly impossible requirements on time, and it describes customized solutions supported by R&D capabilities. This provides direct evidence of customization and non-standard sourcing capability, although specific customization examples or technical limits are not provided.

Product Q&A

Q:What is a quartz sleeve?

A quartz sleeve is a transparent, cylindrical tube made of high-purity fused quartz glass, mainly used to protect UV lamps in water treatment systems.

Q:What is the main function of a quartz sleeve?

It seals the UV lamp from water, allows high UV transmittance, and prevents the lamp from corrosion, moisture, and damage.

Q:What material is the quartz sleeve made of?

It is made of high-purity fused silica / quartz glass, with very low impurity content.

Q:Why use quartz instead of regular glass?

Ordinary glass blocks most UV light, while quartz glass has very high UV transmittance and excellent heat and corrosion resistance.

Q:What industries use quartz sleeves?

They are widely used in water purification, swimming pools, aquariums, wastewater treatment, UV sterilizers, and UV curing equipment.