BS3900 (1971) Viscosity Flow Cup
The term “viscosity” is a parameter that describes a fluids resistance to flow. This resistance is a measure of the friction and the forces of interaction between the layers of a fluid. This friction is apparent when one layer of fluid is made to move against another The greater the friction, the greater the amount of force required to cause the movement – known as “shear”.
The process of flow through an orifice can often be used as a relative measurement and classification of viscosity. This measured kinematic viscosity is generally expressed in seconds of flow time which can be converted into centistokes (cSt) using a viscosity calculator.
Manufactured from high grade aluminium alloy with stainless steel orifices (where indicated), the Rhopoint Flow Cups are available with a range of UKAS / ISO 17025 certified standard oils to confirm the flow cup is measuring within specification.
|Material||High grade aluminium alloy, stainless steel orifice|
|Commodity Code||9027 8091|
|Weight||200 - 300g (depending on model)|
|Product||Order code||Orifice diameter||Viscosity range||Flow times|
|B2: 2.38mm (0.09”)||RL-A-FC-PTA6/B2||2.38mm (0.09”)||38 - 71cSt||30s - 300s|
|B3: 3.17mm (0.12”)||RL-A-FC-PTA6/B3||3.17mm (0.12”)||38 - 147cSt||30s - 300s|
|B4: 3.97mm (0.16”)||RL-A-FC-PTA6/B4||3.97mm (0.16”)||71 - 455cSt||30s - 300s|
|B5: 4.76mm (0.19”)||RL-A-FC-PTA6/B5||4.76mm (0.19”)||299 - 781cSt||30s - 300s|
|B6: 7.14mm (0.28”)||RL-A-FC-PTA6/B6||7.14mm (0.28”)||781 - 1650cSt||30s - 300s|
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