Dimension review
Overall length, outside diameter, wall thickness and open- or closed-end construction.
QZ
Quartz sleeves for UV water sterilizers, matched by length, diameter, wall thickness, end structure and O-ring requirements.
A quartz sleeve protects the UV lamp from water while allowing UV-C energy to pass through the reactor. The right sleeve is defined by its dimensions and sealing structure as well as the lamp it protects. BIOSUN supplies open-end and closed-end quartz sleeves for UV water sterilizers, industrial UV reactors and replacement projects.
Send photos of both sleeve ends, measurements with a ruler or caliper, the lamp model and a photo of the reactor installation. Small differences in length, diameter or sealing position can prevent a sleeve from fitting correctly, so approximate measurements should not be used for a final order.
In water treatment equipment, the sleeve should be checked together with the UV germicidal lamp tube, O-rings, caps and reactor layout. If a ballast shows unstable operation, review the ballast at the same time. A complete maintenance package can reduce repeat service visits and separate shipments.
Cloudiness, scale, scratches, cracks or recurring sealing problems can affect a sleeve’s suitability. In hard-water applications, regular cleaning and inspection help preserve UV transmission and reduce unexpected maintenance interruptions.
Send photos, dimensions, model labels, quantity and application details. BIOSUN will check the product family and matching components before quotation.
Selection checklist
Overall length, outside diameter, wall thickness and open- or closed-end construction.
Reactor interface, O-ring size, sealing position, operating pressure and handling clearance.
Cleaning conditions, inspection interval and spare sleeve quantities for service teams.
Final selection is confirmed against the buyer’s application and approved sample. Depending on the model and project, BIOSUN can prepare specifications, drawings, labels, packing details and available compliance records for review.
For fast matching, send lamp model, tube length, diameter, wattage, base type, quantity and application. Photos of the old lamp label and installation system are helpful.
Technical review
Published ranges and model information are checked against the product tables and supplied technical documents. Final selection still requires confirmation of the equipment, electrical platform, operating conditions and target-market requirements.
Reference review updated September 30, 2026