Negative-pressure containment pass box with stainless body and exhaust filter module

Peralatan Dekontaminasi Personil dan Bahan

Kotak Pass Kontainasi Tekanan Negatif

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

Perkenalan produk

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.

Fitur utama:

Closed-loop fan control responds to the measured chamber pressure.

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.

Kekhawatiran produk pelanggan

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.

Aplikasi yang Tipis

Potent compound transferPowder dispensing roomsHazardous sample handlingOdour-controlled process suites

Parameter teknis

Typical pressure-containment construction ranges for a negative-pressure pass box are listed below.

Bahan inti	Welded SUS 304 or SUS 316L chamber with variable-speed exhaust, make-up inlet and HEPA final filter
Ketebalan Panel (Panel Thickness)	80-150 mm sealed plenum and double-wall construction
Efektif lebar	500-1200 mm clear chamber width
Panjang maksimum	Up to 1500 mm chamber depth
Baja menghadap ketebalan	1.2-1.5 mm stainless-steel facing
Kepadatan inti (core density)	35-40 kg/m³ polyurethane insulation around pressure and filter plenums
Konduktivitas Termal (Thermal Conductivity)	0.022-0.028 W/(m·K) for polyurethane plenum insulation
Permukaan selesai	Brushed or electropolished stainless chamber with smooth coved internal corners
Jenis Bersama	Pressure-tight welded body with gasketed interlocked doors and sealed filter-service panel
Customization (Kustomisasi)	Tersedia berdasarkan aplikasi yang dimaksudkan dan lingkungan operasi.

Pilihan yang tersedia

Typical -10 to -50 Pa pressure rangeSafe-change exhaust filterRemote alarm contactsRoom-specific pressure setpoint

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