Constant Volume Bypass Fume Hood定风量旁通式通风柜
- Width
- 1200 / 1500 / 1800 mm
- Face velocity
- 0.4–0.6 m/s
管道式通风柜

Photo for reference; configuration may vary by order.
Model No. DFH-0002 · Fume Hoods
变风量(VAV)通风柜
Buildings with many hoods save significant exhaust energy when each hood only pulls the air its sash opening needs. A position sensor and digital PID controller hold face velocity between 0.4 and 0.5 m/s, adjusting exhaust across 300–1500 m3/h with a response under 3 s. BACnet or Modbus links it to the building system.
| Place of origin | China (dispatched from Shanghai) |
|---|---|
| Brand | Liquid International / OEM on request |
| Export packing | Fumigation-free plywood case or reinforced carton |
| Loading port | Shanghai / Ningbo (others on request) |
| Payment terms | T/T, L/C at sight (confirmed on quotation) |
| Trade terms | EXW, FOB, CFR, CIF, DAP |
Typical export terms — final terms are confirmed on the proforma invoice.
Buildings with many hoods save significant exhaust energy when each hood only pulls the air its sash opening needs. A position sensor and digital PID controller hold face velocity between 0.4 and 0.5 m/s, adjusting exhaust across 300–1500 m3/h with a response under 3 s. BACnet or Modbus links it to the building system.
| Parameter | Value |
|---|---|
| Face velocity (held) 面风速(保持) | 0.4–0.5 m/s |
| Exhaust volume range 排风量范围 | 300–1500 m3/h |
| Response time 响应时间 | < 3 s |
| Width 宽度 | 1200 / 1500 / 1800 mm |
| Controller 控制器 | Digital, PID |
| Communication 通信 | BACnet or Modbus |
| Sash sensor 视窗传感器 | Position sensor |
| Alarm 报警 | Low velocity audible and visual |
| Liner material 内衬材质 | Epoxy, FRC or stainless steel |
| Duct connection 风管接口 | Ø250–Ø300 mm |
| Model No. | DFH-0002 |
| Place of origin | China (dispatched from Shanghai) |
Chinese national standards (GB/T, JJG) and international standards referenced for this product type. Test reports and certificates are supplied with the quotation on request.
Fumigation-free plywood case or reinforced carton
Every unit is power-tested before packing; enclosed in shock foam and moisture barrier; wooden cases comply with ISPM 15.
Shanghai / Ningbo (others on request)
Full container load (FCL), less-than-container load (LCL) or air freight; complete export documentation provided.
Complete the form below — an export engineer will send technical configurations and a formal proforma invoice within 24 hours.
Single instruments, complete laboratories or government tenders — our export engineers prepare the configuration, proforma invoice and shipping documents.