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Instrumentos de ensaio e validação de sala limpa
Contador de partículas de ar comprimido
A particle-counting package with a high-pressure diffuser for measuring particulate contamination in clean compressed-air and inert-gas systems.
- High-pressure diffusion aligns flow with the counter.
- Low-shedding stainless paths protect sample integrity.
- Gas correction supports portable point checks.
Introdução do produto
This compressed air particle counter combines an optical airborne particle counter with a passivated stainless-steel high-pressure diffuser. The diffuser reduces line pressure to near atmospheric conditions while maintaining a controlled sample flow to the counter, protecting the optical system and avoiding flow-related counting errors. Gas-specific volume correction and isokinetic-style sampling options support meaningful cleanliness assessment for clean dry air, nitrogen and compatible inert gases.
Características-chave
Controlled outlet flow matches the connected counter's calibrated sample rate.
Passivated stainless-steel wetted path minimizes particle shedding and chemical interaction.
Gas-specific correction accounts for density differences between calibration air and the sampled gas.
HEPA-protected exhaust reduces contamination ingress when the diffuser is disconnected.
Portable package supports testing at multiple utility points without permanent installation.
Preocupações do produto do cliente
Pressurized gas must be reduced without adding particles, matched to the counter's intake flow, and interpreted for the density of the sampled gas.
Direct high-pressure connection can overload or damage a standard particle counter.The dedicated diffuser reduces pressure and delivers the counter's required sample flow near atmospheric conditions.
Different gas densities can distort the calculated sample volume.Gas selection and specific-gravity correction normalize measured flow for the sampled medium.
Pressure reduction hardware may introduce particles into an otherwise clean sample.A passivated stainless wetted path and protected exhaust minimize shedding and contamination ingress.
Large particles may be lost when gas velocity changes abruptly.An isokinetic-style diffuser configuration controls the transition and preserves the sampled size distribution more effectively.
Aplicações típicas
Clean compressed-air utility qualificationNitrogen and argon particle cleanliness testingPharmaceutical process-gas monitoringElectronics and semiconductor clean dry air assessmentInvestigation of particulate contamination at point-of-use gas outlets
Parâmetros técnicos
The table presents representative enclosure, flow-path, interface, and material configurations for a high-pressure diffuser and connected counter kit, with selection based on gas pressure and sampling point.
| Material principal | Passivated stainless-steel high-pressure diffuser with an optical laser particle counter and HEPA-protected exhaust |
|---|---|
| Painel de espessura | Approximately 1.0–1.5 mm for the particle-counter enclosure |
| Largura efetiva | Approximately 230–300 mm for the counter and diffuser package |
| Comprimento máximo | Approximately 300–550 mm including connected diffuser and short sample tubing |
| Aço enfrentando espessura | Typically 1.0–1.5 mm for fabricated stainless enclosure surfaces |
| Densidade Core | Not applicable; no insulation core is used (0 kg/m³) |
| Condutividade térmica | Approximately 14–16 W/(m·K) for stainless-steel wetted and enclosure components |
| Superfície acabado | Passivated fine-brushed stainless steel with clean compression fittings and a wipe-clean instrument surface |
| Tipo conjunto | Compression or VCR gas inlet, controlled diffuser outlet and barbed or direct particle-counter connection |
| Customização | Disponível com base na aplicação pretendida e no ambiente operacional. |
Opções disponíveis
2.83, 28.3, 50 or 100 L/min counter flow0.3 µm or 0.5 µm minimum particle channelCompressed air, nitrogen, argon or carbon-dioxide correctionCompression, VCR or barb process connectionUltra-dry-gas bleed-air diffuser configurationPortable case with regulator, tubing and fittings
Planning a Compressed Air Particle Counter specification?
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