Description
The model “P” rotameters are manufactured in 1/8”, 1/4” and 1/2” diameters for very low volume measuring of gas and liquids. Three versions are available, a 60 mm scale (1P5), a 150 mm (3P5) for the same range of capacity and a 250 mm scale (4P5) for higher capacity. These units are ideal for purge systems, bearing lubrication systems, level control with tanks and flow measurement in gas chromatography. When these rotameters are coupled with differential pressure regulators, flow can be kept constant, even with varying upstream or downstream pressures.
Characteristics
Materials
Specifications
Precisão industrial standard: aprox. 10% do fundo de escala para modelo 1P5 e aprox. 5% do fundo de escala para modelos 3P5 e 4P5.
Performance
DIFFERENTIAL PRESSURE REGULATOR (V03 and V04)
The regulator will maintain constant the differential pressure by manual adjustment of the needle valve flow control. The unit consists of a diaphragm in equilibrium with the inlet pressure of the process fluid one side and a spring loading and outlet pressure on the other side. Any variation in inlet or outlet pressure will cause a change in the diaphragm position and a consequent change with the control valve. This system maintains the differential pressures constants. When gases are handled, gas compressibility will make necessary to have one of the pressures (inlet or outlet) constant, so the pressure regulator V03 is for a constant downstream pressure and variable upstream pressures and model V04 is for variable downstream pressures with a constant upstream pressure. With liquids, the V03 unit with variable pressures on either the inlet or outlet side.
Characteristics
• EXAMPLE 2: 3P5 0402 V03 X 2
Rotameter with 60 mm nominal length, model “P” with horizontal inlet and outlet, size 04, 1/4” diameter connections, with needle valve on inlet side.
• EXEMPLO 2: 3P5 0402 V03 X 2
Rotameter with 150 mm nominal length, model “P” with horizontal inlet and outlet, size 04, 1/4” diameter connections, with differential pressure regulator at inlet side and panel mounting.