FTB3002椭圆齿轮流量计 美国omega

容积式(PD)流量计
FTB3001,FTB3002
容积式(PD)流量计

无齿椭圆齿轮结构（）
高精度
紧凑设计
高分辨率电子输出
温度176 C（350 F°° ）
额定压力为3000 psig 1 NPT配件标准
多轴承的选择
316不锈钢结构（标准）
没有特殊的齿轮高粘度 需要
线性不受粘度变化
1年底装修标准法兰MNPT，可选
 

The oval-shaped smooth gears in the FTB3000 Series are used to displace a precise volume of fluid,which is passed through th emeasurement chamber during each revolution. The toothless design,working with the fluid being measured, provides a complete viscous seal within the measuring chamber. This sealing effect provides for greater flow measurement accuracy.
The displacement of the fluid is translated via a magnetic or Hall-effect pick-up into a pulse output that is proportional to the flow.
The unique design of the FTB3000 oval gear meter incorporates two smooth(toothless) oval gears positioned 90 degrees out of phase. The measurement gears are held together by two timing gears. The standard meter contains no seal between the measurement chamber and the timing chamber. The timing gears have a pitch diameter equal to the outside diameter of the measurement gears. The flow through the meter measurement chamber follows the path of least resistance. Therefore, no liquid passes through the center cavity between the measurement gears. The fluid is displaced from the inlet to the outlet via the area between the smooth oval gear and the inner diameter of the meter housing.
Conventional oval gears have teeth that mesh. One of the advantages of smooth oval gears is that the viscous flow does not get trapped or squeezed between the gears. Typically, oval gears need to have cuts made in the teeth to allow high viscosity fluids to pass. These cuts result in a decrease in accuracy.
SPECIFICATIONS
Service Fluid: Clean liquids, max particle size 3.175 mm (0.125")
Accuracy: ±0.25% of reading
Viscosity: 100 cSt or greater
Repeatability: ±0.05%
Operating Temperature:
FTB3001: -240 to 176°C (-400 to 350°F)
FTB3002: -40 to 150°C (-40 to 302°F)
Operating Pressure: 3000 psig standard
Wetted Parts: 316 SS body and gears with PEEK? gear seats
Bearings: Shielded, self-lubricating 440 SS ball bearings
Connections: 1 MNPT
Pick Up Coil: Magnetic type or Hall Effect (6 to 24 Vdc power)
Calibration: Ten-point calibration traceable to NIST @ 100 centistokes
Weight: 7.53 kg (16.6 lb)

产品型号/产品描述  
FTB3001 2 to 25 GPM rate, magnetic pick-up 
FTB3002 0.02 to 25 GPM rate, Hall-effect sensor
Accessories
U24Y175 24 Vdc, 175 mA power supply
 
DPF701 Panel meter for rate or total
 

注释: Add suffix “-150LBF” (150 lb stainless steel flange) or “-300LBF” (300 lb stainless steel flange) to the part number and $250 to the price.
Comes complete with operator’s manual, mating connector, and 10-point NIST calibration.

 FTB3002椭圆齿轮流量计 美国omega

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