The Smith Meter Model E3 is a 3-inch, steel, double-case, straight-through rotary vane positive displacement (PD) meter used for custody transfer, batching, blending, dispensing and inventory control of petroleum products, oils, solvents, chemicals and similar liquids. Smith's offset inlet and outlet nozzles keep pressure drop across the measuring chamber low, which minimizes slippage and preserves accuracy, and a high-torque calibrator adjusts registration in 0.05% steps.
Key specifications
Size: 3 in, ANSI B16.5 raised-face flanges
Max flow, standard trim: 420 USGPM (1,600 L/min) continuous; 500 USGPM (1,900 L/min) intermittent (clean refined products)
Max flow, all-iron / LPG trim: 315 USGPM (1,200 L/min)
Linearity: ±0.15% typical over the rated range (minimum flow depends on viscosity)
Repeatability: ±0.02%
Pressure ratings (at 100 °F): E3-S3 Class 150 (285 psi); E3-S6 Class 300 (740 psi); E3-S7 Class 600 (1,480 psi); E3-S8 Class 900 (2,220 psi)
Viscosity: 400 mPa·s standard; to 2 Pa·s with high-viscosity clearances
Temperature: -20 to 150 °F standard clearances; to 200 °F high-temp; to 400 °F all-iron trim (seal dependent)
Meter gearing: 5 US gal or 1 dekaliter per calibrator revolution; 1 barrel special
Materials: Steel housing; iron, steel, stainless and aluminum internals (standard trim); Buna-N, FKM (Viton) or PTFE seals; LPG and all-iron trims
Options: High-viscosity and high-temperature clearances, NACE MR0175 construction, ASME Section VIII vessel on E3-S3; strainer, air eliminator, valves, counters, printers, pulse transmitters and ATC/ATG accessories
How to read the model code
Example: KE3S3GBS00. Read the code left to right; each position selects one option:
Position 1 (Catalog code): K = catalog code
Positions 2-3 (Model / size): E3 = 3 in
Position 4 (Flow path): S = straight-through
Position 5 (Pressure class, RF flanges): 3 = Class 150 (285 psi); 6 = Class 300 (740 psi); 7 = Class 600 (1,480 psi); 8 = Class 900 (2,220 psi)
Position 6 (Meter gearing): G = gallons; B = barrels; D = dekaliters; I = imperial gallons; P = pounds (consult factory for I and P)
Position 7 (Seals): B = Buna-N; V = FKM; T = PTFE; L = low-temperature FKM
Position 8 (Trim): S = standard; A = all iron; L = LPG
Position 9 (Temperature compensation): 0 = none; A = ATC (factory-set); B = ATG (field-adjustable)
Position 10 (Special requirements): 0 = standard; P = EU PED (Ellerbek-built); C = CRN + low-temp material; L = low-temp material
Pricing and lead time are quoted per configuration. Send the model code (or the details above), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter bulletin SS01016; 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.