Inglês
Alemão
Língua árabe
Francês
Língua indonésia
Japonês
Coreano
Língua malaia
Portuguêsatual
Língua russa
Espanhol
Tailandês
Língua turca
Vietnã
Equipamento de descontaminação de pessoal e materiais
Caixa de passagem de contenção de pressão negativa
A transfer chamber held below adjacent-room pressure so leakage is drawn inward and routed to filtered exhaust.
- Negative Chamber Bias
- Filtered Exhaust
- Controlled Make-Up Air
- Pressure-Gated Interlocks
Introdução do produto
The negative-pressure containment pass box moves dusty, potent or odorous material without allowing a passive leak towards the support space. A variable-speed exhaust fan maintains the selected negative pressure, while a controlled make-up path avoids excessive suction at the door seals. A pressure signal controls the interlock logic and indicates when the chamber has recovered after a transfer.
Características-chave
A deliberate make-up air path limits high-velocity leakage through random gaps.
The clean-side door can remain inhibited until pressure recovers.
A sealed final-filter service panel separates captured material from the corridor.
Smooth welded internal surfaces support wipe-down after transfer.
Preocupações do produto do cliente
The chamber needs to keep leakage inward without making doors difficult to operate or disrupting adjacent spaces.
Exhaust force makes a door difficult to unlatch.Controlled make-up air and an adjustable setpoint limit the differential pressure.
Filter loading reduces extraction and reverses the leakage direction.Pressure-responsive fan control adjusts airflow as resistance changes.
Captured powder is exposed during routine filter service.A gasketed service housing keeps handling on the designated dirty side.
The next door opens before the chamber recovers.Pressure-gated interlocks delay release until the selected negative bias returns.
Aplicações típicas
Potent compound transferPowder dispensing roomsHazardous sample handlingOdour-controlled process suites
Parâmetros técnicos
Typical pressure-containment construction ranges for a negative-pressure pass box are listed below.
| Material principal | Welded SUS 304 or SUS 316L chamber with variable-speed exhaust, make-up inlet and HEPA final filter |
|---|---|
| Painel de espessura | 80-150 mm sealed plenum and double-wall construction |
| Largura efetiva | 500-1200 mm clear chamber width |
| Comprimento máximo | Up to 1500 mm chamber depth |
| Aço enfrentando espessura | 1.2-1.5 mm stainless-steel facing |
| Densidade Core | 35-40 kg/m³ polyurethane insulation around pressure and filter plenums |
| Condutividade térmica | 0.022-0.028 W/(m·K) for polyurethane plenum insulation |
| Superfície acabado | Brushed or electropolished stainless chamber with smooth coved internal corners |
| Tipo conjunto | Pressure-tight welded body with gasketed interlocked doors and sealed filter-service panel |
| Customização | Disponível com base na aplicação pretendida e no ambiente operacional. |
Opções disponíveis
Typical -10 to -50 Pa pressure rangeSafe-change exhaust filterRemote alarm contactsRoom-specific pressure setpoint
Planning a Negative-Pressure Containment Pass Box specification?
Envie-nos as suas dimensões, condições de instalação, metas de desempenho e acabamento de superfície necessário.
