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Fused Quartz Spray & Reaction Chambers
Fused quartz spray and reaction chambers designed for high-purity semiconductor, chemical, and laboratory processes. Built from ultra-high-purity fused silica and assembled by precision flame-fusion, these vessels deliver excellent chemical inertness, thermal stability, and clean, precise control of gas/liquid delivery, mixing, and residence time in critical environments.
What to Provide for a Quote
- Drawing (PDF/STEP) or key dimensions: vessel diameter/height, wall thickness, dome/flat lid shape
- Ports & connections: quantity, locations, and sizes; joint type (taper/ball-socket), hose barb, or KF/ISO/CF flange
- Internal features: spray nozzle type, dip tube or sparger, baffles/mixers, flow distributors, drain/sump geometry
- Process conditions: chemicals/gases, target flow rates, vacuum/allowable pressure, max temperature, cleanliness level
- Instrumentation/windows: thermowell, sight/viewport, sampling port; o-ring groove or sealing land requirements
- Critical tolerances: flatness/parallelism of sealing faces, concentricity/runout of necks/ports
- Quantity (prototype or batch), inspection reports needed, and packaging level
Key Specifications
- Material: High-purity fused quartz (SiO₂); material certificate available by request
- Configurations: Cylindrical or spherical-dome chambers; single or multi-port lids; integrated manifolds or risers; drain/sump options
- Connections: Ground glass joints, ball/socket, hose barbs, KF/ISO/CF flanges, or custom adapters
- Internal Hardware: Spray nozzles/injectors, dip tubes, diffusers/spargers, baffles, flow straighteners—per drawing
- Construction: Precision machining with flame-fused transitions; stress-relief annealing available
- Surfaces & Cleanliness: Smooth, chip-free wetted surfaces; ultrasonic/DI cleaning; Class-100 compatible packaging
- Service Note: Intended for vacuum or low-pressure service; any pressure rating is design- and test-dependent
Material Properties (Typical)
- Exceptional chemical resistance and low extractables (note: HF attacks quartz)
- Very low thermal expansion with good thermal-shock tolerance
- Electrically insulating, optically clear, and low outgassing—ideal for high-purity service
Processing & Design Notes
- Use generous radii at junctions to reduce stress and particle traps; polish wetted surfaces to minimize shedding
- Define spray pattern/angle, target droplet size, and residence-time goals when specifying nozzles and baffles
- Add venting on blind cavities and threaded features to prevent virtual leaks in vacuum duty
- Provide drain slope/sump geometry to avoid liquid hold-up; consider anti-reflux features where needed
- Choose connection standards to match your downstream plumbing and maintenance practice
- We can advise practical tolerances for sealing-face flatness, port concentricity, and alignment based on size/geometry
Inspection & Testing
- Dimensional verification: vessel size, port positions, neck concentricity, sealing-face geometry
- Optional tests: helium leak test (vacuum assemblies), flow/hold or pressure-decay test per design
- Visual inspection: 100% check for chips, micro-cracks, inclusions, and contamination
- Optional birefringence/stress evaluation and cleanliness certification
Applications
Precursor spraying and mixing for ALD/CVD, wet-chem spray/etch/rinse, vapor/liquid contacting, micro-reactors, gas scrubbing, and analytical/lab systems requiring high purity and visual access
Packaging & Storage
Protective caps on ports; anti-static, vacuum-sealed packaging with shock-absorbent foam and rigid outer protection. Store dry (<40% RH) at 10–30 °C and away from HF-containing chemicals.
Notes
Custom configurations (hole patterns, coatings, or additional markings) available upon request.
Compliance certificates (RoHS, ISO 9001) provided with bulk orders.