美國PFS公司目前主要產品(文丘里流量計,楔式流量計和高壓節流裝置)如下:(1) HVT-CI或HVT-FV Halmi Venturi 文丘里流量計,HVT-PI或HVT-FI Halmi Insertion Type Venturi插入式文丘里流量計.
尺寸：3” to 96”， Presure Rating：ANSI Class 150ibs to Class 2500ibs， Accuracy： Bench Calibrated試驗臺標定±0.5％， Flow Calibrated實際流量標定±0.25％（2） HVT-FV-Mini Venturi for small line size application小流量用微小型文丘里流量計。 Size：1” or less, pressure rating: ANSI Class 150ibs to Class 2500ibs, Accuracy： Bench Calibrated試驗臺標定±0.5％， Flow Calibrated實際流量標定±0.25％（3） HVT-BV or HVT-BI Halmi Venturi type primary flow elements for Bi-directional flow measurement. 雙向文丘里流量計， Size：3” to 96” pressure rating: ANSI Class 150ibs to Class 2500ibs, Accuracy： Bench Calibrated試驗 臺標定±0.5％， Flow Calibrated實際流量標定±0.25％（4） PFS-WM wedge type primary flow measurement elements for high viscosity fluids application用于高黏度流體流量測量的楔式流量計 Size: 1” to 24”, pressure rating: ANSI Class 150ibs to Class 2500ibs, Accuracy:Bench Calibrated試驗臺標定±2％, Flow Calibrated實際流量標定±0.5％， Repeat ability ±0.2％ (5) Orifice plates, flanges, and holding blocks assembled for throttling, Differential pressure flow measuring elements.孔板流量計組件, Size: 2” to 16”,Pressure rating: ANSI Class 300# to Class 2500.