UV Quartz Sleeve for DWS7 UV Disinfection Units

Campbell / ATS Quartz Sleeve for DWS-7 / SE-7 UV Systems

Replacement quartz sleeve for the Campbell / Aqua Treatment Services (ATS) ultraviolet disinfection systems model DWS-7 and SE-7 (rated for 6-7 gpm). The quartz sleeve encloses the UV lamp, protecting it from water contact while enabling UV transmission to disinfect the flowing water.

• Part number / model: ATS6-211 (often listed as “Quartz Sleeve for DWS/SE7”) :contentReference[oaicite:0]{index=0}
• Compatible systems: Campbell / ATS DWS-7, SE-7, and related UV units in the DWS / SE line :contentReference[oaicite:1]{index=1}
• Flow rating: Intended for use in systems handling up to 6–7 gallons per minute (gpm) :contentReference[oaicite:2]{index=2}
• Dimensions:
  • Length: 378 mm (≈ 14.88 in) :contentReference[oaicite:3]{index=3}
  • Inside diameter: 22 mm :contentReference[oaicite:4]{index=4}
  • Outside diameter: 24.5 mm :contentReference[oaicite:5]{index=5}
• Ends: Open on both ends (for lamp insertion and compression sealing) :contentReference[oaicite:6]{index=6}
• Material: High-quality UV-grade fused quartz (optimized for UV transmission and thermal stability) :contentReference[oaicite:7]{index=7}
• Function:
  • Isolates the UV lamp from direct water contact while allowing ultraviolet light (254 nm) to pass through for disinfection.
  • Helps maintain a consistent lamp operating temperature and protects against shorting / electrical issues. :contentReference[oaicite:8]{index=8}
• Sealing / Mounting:
  • Uses compression end nuts and O-rings at each end for a watertight seal within the threaded chamber ends. :contentReference[oaicite:9]{index=9}
  • Quartz sleeve is installed through the stainless steel chamber and slightly protrudes beyond each end nipple before securing compression nuts. :contentReference[oaicite:10]{index=10}
• Maintenance & Replacement:
  • Recommended cleaning frequency: once monthly in normal conditions (or as needed depending on water quality) :contentReference[oaicite:11]{index=11}
  • Replacement interval: typically change quartz sleeve when lamp is changed (annually) or every 24 months as needed based on wear / clouding / damage. :contentReference[oaicite:12]{index=12}
  • When removing, loosen compression nuts carefully (avoid overtightening or applying torque with tools to prevent fracture) :contentReference[oaicite:13]{index=13}
  • After removal, clean with mild soap / water; more aggressive cleaning (e.g. weak acid) may be used if mineral deposits are present, following safety procedures. :contentReference[oaicite:14]{index=14}
  • Replace O-rings each time the sleeve is removed / serviced to maintain seal integrity. :contentReference[oaicite:15]{index=15}
• Operational Constraints & Notes:
  • Handle quartz sleeve with care — avoid touching surfaces with bare fingers (oil deposits degrade UV transmission). :contentReference[oaicite:16]{index=16}
  • Ensure water conditions (turbidity, hardness, minerals) do not degrade performance—excess deposits reduce UV transmissivity. :contentReference[oaicite:17]{index=17}
  • Ensure proper alignment, straight installation, and avoid stresses on the sleeve during chamber assembly. :contentReference[oaicite:18]{index=18}
  • Quartz sleeve must remain intact — any chips or cracks will impair UV performance or lead to failure.
• Weight: ~ 0.01 lb (package listing) :contentReference[oaicite:19]{index=19}
• Warranty: Usually 1-year manufacturer warranty on quartz sleeve parts, subject to proper handling and installation. :contentReference[oaicite:20]{index=20}

Technical & Performance Notes

• The quartz sleeve must maintain high UV transparency at 254 nm to allow the UV lamp’s germicidal output to pass into the water stream effectively.
• Any fouling, clouding, or scaling of the quartz surface will reduce UV dose delivered and can compromise disinfection performance.
• When replacing, the quartz sleeve must align concentrically with the lamp and chamber to minimize eccentricity, which could cause nonuniform UV exposure or lamp stress.
• Because the UV systems are rated for up to 7 gpm, the sleeve design supports adequate UV exposure time within that flow regime (i.e. optical path length and sleeve wall thickness are chosen accordingly).
• Always follow manufacturer’s procedural steps for installation, leak testing, and UV lamp insertion to preserve system integrity and warranty.