Detailed introduction of various Flow Cups
Flow cups are designed to accurately measure the viscosity of paints, inks, varnishes and similar products.
The process of flow through the pores can often be used as a relative measure and classification of viscosity.
This measured kinematic viscosity is usually expressed in seconds of flow time, which can be converted to centimeters (cSt) using a viscosity calculator.[2]
Manufactured from high grade aluminum alloy and stainless steel bore (as shown), the Flow Cups can be used with a range of UKAS/ISO 17025 certified standard oils to confirm the Flow Cup's measuring range.
| type | Orifice diameter | Viscosity range | flow time |
|---|---|---|---|
| BS FLOW CUP BS 3900 (1971) old specification (B2) BS 3900 (1971) old specification (B3) BS 3900 (1971) old specification (B4) BS 3900 (1971) old specification (B5) BS 3900 (1971) old specification (B6) | 2.38mm (0.09") 3.17mm (0.12") 3.97mm (0.16") 4.76mm (0.19") 7.14mm (0.28") | 38 - 71cSt 38 - 147cSt 71 - 455cSt 299 - 781cSt 781 - 1650cSt | 30 - 300 seconds |
| DIN Flow Cup Din Flow Cup (2mm) - Din 53211 Din Flow Cup (4mm) - Din 53211 Din Flow Cup (6mm) - Din 53211 Din Flow Cup (8mm) - Din 53211 The orifice is made of stainless steel. | 2 mm (0.08 inches) 4 mm (0.16 inches) 6 mm (0.24 inches) 8 mm (0.31 inches) | 15 - 30cSt 112 - 685cSt 550 - 1500cSt 1200 - 3000cSt (Approx.) | 25-150 seconds |
| Ford Flow Cup No. 1 Ford Flow Cup - ASTM D1200 [3] Ford Flow Cup No. 2 - ASTM D1200 Ford Flow Cup No. 3 - ASTM D1200 Ford Flow Cup No. 4 - ASTM D1200 Ford Flow Cup No. 5 - ASTM D1200 Fabricated Orifices from stainless steel. | 2.1mm (0.08") 2.8mm (0.11") 3.4mm (0.13") 4.1mm (0.16") 5.8mm (0.23") | 10 - 35cSt 25 - 120cSt 49 - 220cSt 70 - 370cSt 200 - 1200cSt | 55 - 100 seconds 40 - 100 seconds 30 - 100 seconds 30 - 100 seconds 30 - 100 seconds |
| ISO/ASTM Flow Cups Flow Cups to BS EN ISO 2431,[4] ASTM D5125 Flow Cups to BS EN ISO 2431, ASTM D5125 Flow Cups to BS EN ISO 2431, ASTM D5125 Flow Cups to BS EN ISO 2431, ASTM D5125 Flow Cups The holes conforming to BS EN ISO 2431, ASTM D5125 are made of stainless steel. | 3 mm (0.12 inches) 4 mm (0.16 inches) 5 mm (0.20 inches) 6 mm (0.24 inches) 8 mm (0.31 inches) | 7 - 42cSt 35 - 135cSt 91 - 325cSt 188 - 684cSt 600 - 2000cSt | 30 - 100 seconds |
| AFNOR Flow Cup Afnor Flow Cup - 2.5mm - NF T30-014 Afnor Flow Cup - 4mm - NF T30-014 Afnor Flow Cup - 6mm - NF T30-014 Afnor Flow Cup - 8mm - NF T30-014 | 2.5 mm (0.10 inches) 4 mm (0.16 inches) 6 mm (0.24 inches) 8 mm (0.31 inches) | 5 - 140cSt 50 - 1100cSt 510 - 5100cSt 700 - 11500cSt | 30 - 100 seconds |
| FRIKMAR FLOW CUP Frikmar Flow Cup 2mm Frikmar Flow Cup 4mm Frikmar Flow Cup 6mm Frikmar Flow Cup 8mm orifice is made of stainless steel. | 2 mm (0.08 inches) 4 mm (0.16 inches) 6 mm (0.24 inches) 8 mm (0.31 inches) | 15 - 30cSt 112 - 685cSt 550 - 1500cSt 1200 - 3000cSt (Approx.) | 25-150 seconds |
Products required
Relevant knowledge
- 1The difference between different viscosity cup viscosity
- 2Differences in Viscosity of Different Standard Flow Cups
刘登良 - 《《涂料工艺》》
- 3The same and different of TQC3 6mm ISO Flow Cup
- 4ISO Flow Cup calibration method
- 5Viscosity can be determined by Flow Cup method?
- 6How to properly use Flow Cup to measure Coating Viscosity?
- 7The principle, selection and calibrating of ISO Flow Cup
- 8Correction method of Flow Cup
- 9Coating viscosity determination of the national standard [Flow Cup method]
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