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LI-QUID LIQUID INTERNATIONAL 利奎德国际 · Shanghai
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孔口与堰流实验装置

Orifice & Notch Discharge Apparatus

Model No. ONA-0004 · Hydraulics & Fluid Mechanics Lab Equipment

Falling-Head Orifice and Mouthpiece Apparatus

变水头孔口与管嘴出流实验仪

Reservoir and tank drawdown problems are best understood by timing a real tank as it empties. The 300 mm clear cylinder holds up to 550 mm of water and accepts four 10 mm fittings: sharp orifice, bellmouth, cylindrical and convergent mouthpieces. Students run constant or falling head tests, timing level drops with a 0.01 s digital timer.

Tank
Clear acrylic cylinder, 300 mm ID, 600 mm high
Fittings supplied
Sharp orifice, bellmouth, cylindrical and convergent mouthpieces, 10 mm
Level scale
0–550 mm, 1 mm divisions
Operating modes
Constant head and falling head
Timer
Digital, 0.01 s
Inquiry Now

Packing & Shipping

Place of originChina (dispatched from Shanghai)
BrandLiquid International / OEM on request
Export packingFumigation-free plywood case or reinforced carton
Loading portShanghai / Ningbo (others on request)
Payment termsT/T, L/C at sight (confirmed on quotation)
Trade termsEXW, FOB, CFR, CIF, DAP

Typical export terms — final terms are confirmed on the proforma invoice.

Product Description 产品描述

Reservoir and tank drawdown problems are best understood by timing a real tank as it empties. The 300 mm clear cylinder holds up to 550 mm of water and accepts four 10 mm fittings: sharp orifice, bellmouth, cylindrical and convergent mouthpieces. Students run constant or falling head tests, timing level drops with a 0.01 s digital timer.

Highlights

  • 300 mm clear cylinder, 550 mm level
  • Four interchangeable 10 mm fittings
  • Constant and falling head modes
  • 0.01 s digital timer

Applications

  • Time to empty a tank
  • Mouthpiece discharge coefficients
  • Comparing orifice types
  • Reservoir drawdown teaching

Specifications 技术参数

ParameterValue
Tank 水箱 Clear acrylic cylinder, 300 mm ID, 600 mm high
Fittings supplied 配套出流件 Sharp orifice, bellmouth, cylindrical and convergent mouthpieces, 10 mm
Level scale 液位标尺 0–550 mm, 1 mm divisions
Operating modes 运行方式 Constant head and falling head
Timer 计时器 Digital, 0.01 s
Water supply 供水 From hydraulics bench
Overall dimensions 外形尺寸 500 × 450 × 1100 mm
Weight 重量 Approx. 18 kg
Model No.ONA-0004
Place of originChina (dispatched from Shanghai)

Applicable standards 适用标准

ISO 1438 BS 3680-4A ASTM D5242 ISO 5167-2 ISO 8316

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.

Packing & Shipping 包装与运输

Export packing

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.

Loading port

Shanghai / Ningbo (others on request)

Full container load (FCL), less-than-container load (LCL) or air freight; complete export documentation provided.

Inquiry Now 索取报价

Complete the form below — an export engineer will send technical configurations and a formal proforma invoice within 24 hours.

Products in this inquiry: Falling-Head Orifice and Mouthpiece Apparatus (ONA-0004)

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