The unique design of Hoffer’s Oval Gear meter incorporates two SMOOTH (toothless) oval gears 90 degrees out of phase. The measurement gears are held together by two timing gears. 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.
特性
- 专利无齿椭圆齿轮结构。U、 美国专利5992230
- 高精度。
- 紧凑的设计。
- 高分辨率电子输出。
- 不锈钢滚珠轴承，自润滑。
- 316不锈钢与黄铜推力板结构(标准)。
- 高粘度无需特殊齿轮。
- 线性不受粘度变化的影响。
- 1″ MNPT End Fitting (Standard). Variety of End Connections Available.
- 精度高。
- 不锈钢滚珠轴承，自动润滑。
- 316不锈钢，带黄铜止推板结构（标准）。
- 高粘度不需要特殊齿轮。
技术参数
| 规格项 | 参数值 |
|---|---|
| 产品类别 | Flow Meters |
| 特征 | Built-in Alarm Indicator (optional feature); Controller (optional feature); Programmable (optional feature); Recorder / Totalizer Functions (optional feature) |
| 介质温度 | -20 to 375 F (-29 to 191 C) |
| 管道直径 | 1.00 inch (25.4 mm) |
| 液体体积流量 | 0.02 to 25.00 GPM (0.0758 to 94.7 L/min) |
| 仪表类型 | Volumetric Flow Meter |
| 工作压力 | ? to 3000 psi (? to 2111 m H2O) |
| 终端配件 | In-line Flanged (optional feature); In-line Threaded (optional feature) |
| 测量的附加变量 | Temperature (optional feature) |
| 审核认证 | Underwriters Laboratory; Canadian Standards Association; European Committee for Electrotechnical Standardization; Standards Australia Association (optional feature); CE Marked (Optional), ISO 9001, PED-CE Mark |
| 安装 | In-line |
| 测量介质 | Liquid |
| 前面板接口 | Digital Front Panel (optional feature); Computer Controllable (optional feature) |
| 精度 | 0.2500 ±% |
| 接口选项 | Serial/Digital |
| 电气输出 | Current (optional feature); Frequency; Voltage (optional feature) |
| 测量技术 | Oval Gear |
