The Smith Meter Model SD-30-DI (ductile iron) and SD3-S1 (steel) are 3-inch, Class 150 ANSI raised-face flanged, single-case rotary vane positive displacement meters used for blending, batching, dispensing, inventory control and custody transfer of oils, solvents, chemicals, paints, fats and fertilizers. Offset inlet and outlet nozzles minimize pressure drop across the measuring chamber, the calibrator adjusts in 0.05% steps, and ball bearings with fixed cam timing give long service life.
Key specifications
Size: 3 in, ANSI Class 150 RF flanges
Housing: SD-30-DI ductile iron; SD3-S1 steel
Max flow: 320 GPM (1,200 L/min) continuous; 400 GPM (1,500 L/min) intermittent; 240 GPM (900 L/min) all-iron trim
Linearity / repeatability: ±0.15% typical over the rated range (minimum flow depends on viscosity) / ±0.02%
Viscosity: 400 mPa·s standard; to 2 Pa·s with high-viscosity clearances
Temperature: -20 to 150 °F standard (Viton from 10 °F); to 200 °F with high-temperature clearances; above 200 °F with all-iron trim
Max working pressure: 150 psig up to 200 °F
Meter gearing: 5 US gallons or 1 dekaliter per calibrator revolution
Materials: Iron, steel, stainless and aluminum internals (all-iron trim optional); Buna packing standard, PTFE or Viton optional; offset or straight-through set-stop valves available
Installation: Protect with a 40-mesh strainer
How to specify / order
The bulletin gives an ordering checklist rather than a position-by-position model code. Provide the following with your RFQ:
Model: SD-30-DI (ductile iron) or SD3-S1 (steel)
Application: Batching, loading, blending, inventory, process control
Operating conditions: Liquid name and gravity; minimum/normal/maximum flow, temperature and viscosity; maximum working pressure
Seals: Packing gland: Buna (standard), Viton or PTFE; valve: Buna, Viton, EPR or PTFE
Units of registration: Gallons, liters, pounds, kilograms
Direction of flow: Left-to-right standard; specify right-to-left if required
Options / accessories: All-iron trim, high-viscosity or high-temperature clearances, set-stop valve, strainer, counters, pulse transmitter
Pricing and lead time are quoted per configuration. Send the model code (or your application details), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter bulletin SS01007; confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.