ZHQH Quartz Glass Tube With Thread QBA-02

ZHQH Quartz Glass Tube With Thread QBA-02

Thread quartz glass tube QBA-02

Email:

hongyu@cnquartzglass.com

Contact Number:

Category

Keyword

Brand:

ZHQH

Material：

99.99% pure quartz

Number：

QBA

Model：

QBA-02

Authentication：

RoHS

Color：

Clear

Specifications：

Customized

Origin：

China

Product Description

RPODUCT
Quartz Glass Tube with Thread

Definition & Purpose
A Threaded Quartz Glass Tube is a precision-engineered fused silica component featuring integral or attached threaded ends (male/female) for secure, leak-proof connections in high-temperature or corrosive environments. It combines quartz's purity with mechanical versatility.
Key Features
Material & Performance
Ultra-High Purity Fused Silica (SiO₂ ≥99.99%) – Low thermal expansion (0.55×10⁻⁶/°C), chemical inertness.
Temperature Range: -100°C to +1100°C (short-term to 1300°C).
Thread Types: Metric, NPT, or custom pitches (e.g., M6, 1/4" NPT).
Design Options
End Configurations: One/both ends threaded, with options for:
Ground Glass Joints (e.g., 14/20) + threaded collar.
Flanged Threads for vacuum systems.
Surface Treatments:
Fire-polished edges.
Satin-finished threads (anti-galling).
Optical & Vacuum Compatibility
UV-VIS-NIR transparent (170–2500 nm).
Helium leak rate <1×10⁻⁹ mbar·L/s (with proper sealing).
Applications
Semiconductor: Vacuum chamber feedthroughs for CVD/PVD.
Photonics: Threaded laser tube mounts.
Chemical Processing: Reactor liners with threaded caps.
Analytical Instruments: GC/MS transfer lines.
Technical Specifications
Parameter Specification
Thread Tolerance ISO 965-1 Class 6g/6H
Pressure Rating 10 atm (static), 2 atm (dynamic flow)
Surface Roughness Ra ≤0.8 μm (threads)
Standards DIN 28404, SEMI F15
Advantages Over Alternatives
✔ VS Metal Threads: No corrosion, zero outgassing.
✔ VS Glued Joints: Mechanically robust, reusable.
✔ VS Plastic: Withstands sterilization (autoclave/UV).
Usage Notes
Sealing: Use graphite or PTFE ferrules with threaded fittings.
Torque Limits: Apply ≤0.5 N·m to avoid quartz cracking.
Customization: Available with:
Conical threads for quick-connect systems.
Hybrid metal-quartz threaded adapters.
Example Part Numbers:
QGT-M6x1: 6 mm OD tube with M6×1 male thread.
QGT-NPT1/4: 1/4" NPT female threaded end.

Parameter	Specification
Thread Tolerance	ISO 965-1 Class 6g/6H
Pressure Rating	10 atm (static), 2 atm (dynamic flow)
Surface Roughness	Ra ≤0.8 μm (threads)
Standards	DIN 28404, SEMI F15