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Tuthill FPP / Fill Rite TS, Bulk Transfer Mechanical Flow Meter, ATEX Approved
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Tuthill FPP / Fill Rite TS, Bulk Transfer Mechanical Register / Flow Meter, ATEX Approved

The Tuthill FPP Bulk Transfer Flow Meter is world-renowned for its Durability, Reliability, and Accuracy

In approximately 2011, Tuthill decided to Re-Brand all Tuthill "FPP" meters, and the new name is "Fill-Rite TS" - the meters are identical, and still manufactured by Tuhill, and the part numbers are also the same.

Key Features

  • Anodized Aluminium Housing
  • Mechanical Register
  • Only two moving parts
  • No metal to metal contact in chamber or bearings
  • Patented 'Wave Form' oval gear design
  • Low differential pressure for maximum flow

Some Popular Applications (Subject to meter materials)

Truck metering

  • Refined fuels
  • LPG
  • Aviation fuel
  • Alternative fuels • Lube oils
  • Agricultural chemicals

Bulk plant/terminal metering

  • Refined petroleum products and LPG • Alternative fuels
  • Industrial chemicals/solvents
  • Marine fuel/bunker oil
  • Hot asphalt/asphalt emulsions

Dispenser metering

  • LPG and fuels
  • Diesel Exhaust Fluid

Industrial process metering

  • Liquid sweeteners/corn syrup • Coatings
  • Pulp and paper chemicals
  • Pharmaceuticals
  • Printing inks
  • Concrete add mixtures

Industrial liquids

  • Acids/caustics

Flow Rates:

ModelBoreLV Rotors
Nom Flow, US Gallons/Min
LV Rotors
Nom Flow, Litres/Min
Flow Factor with HV RotorsHV Rotors
Nom Flow, US Gallons/Mon
HV Rotors
Nom Flow, Litres/Min

Pressure Rating:

  • 150 PSI at 100F = 10 BAR at 40C

Temperature Rating:

  • -40F to 180F = -40C to +80C


  • LV & HT rotors: 100% capacity to 1,500 SSU (300 cP)
  • HV rotors: 100% capacity to 5,000 SSU (1000 cP)
  • Reduced capacity to 1,5000,000 SSU (350,000 cP)

Wetted Components:

  • Case: Anodized aluminium
  • Gears: PPS with carbon bearings, Teflon bearing optional
  • Posts: HC303SS
  • Seals: Viton standard, Teflon optional
  • Flanges: Anodized aluminium standard, carbon steel optional

Pulser (OPTIONAL):

  • 10:1 dry reed on mechanical register
  • 100:1 solid state on mechanical register

Pulse Resolutuion:

  • 1/10 gallon register 10 PPG 100 PPG
  • Whole gallon register 1 PPG 10 PPL
  • Dekaliter register 0.1 PPL 1 PPL

Meter Performance:


  • Over 5:1 turn-down from max. capacity: +-0.175%
  • Over 10:1 turn-down from max. capacity: +-0.25%
  • Over 30:1 turn-down from max. capacity: +- 0.5%


  • 0.05 or better under constant conditions

Approvals (Custody Transfer approvals are liquid specific):

  • W&M approval in the US, Candada*, EU & Australis. (Candada = 380 lpm, recertification to 570 lpm pending)
  • CE

Registration & Accessories

Registration Options:

  • Register: #7887 standard (5 digit reset & 8 digit totalizer)7886
  • #7886 optional (6 digit reset & 8 digit totalizer)
  • Calibration: 1/10 gallon standard
  • Whole gallon, whole litre or dekalitre optional
  • Preset Counter: #7889 2-stage shut-off
  • Optional micro switch kit in X-Prf enclosure
  • Ticket Printer: #7888 Zero Start standard
  • Accumulative optional


  • Inlet strainer for flow meter protection
  • High capacity strainer for high speed diesel truck service
  • Air eliminator mounted on strainer
  • Back pressure valve for enhanced air elimination on trucks
  • Air Check Valve on flow meter outlet side
  • Mechanical preset valve

Application and Selection Guidance

There are several considerations to be made when selecting a positive displacement flow meter. To make a sound meter model selection, the following checklist will help address the primary issues that need to be considered.


This is the most important information to consider, as it effects case material of construction, rotor type, bearing materials & seals. Tuthill Transfer Systems focuses on providing quality metering solutions for the following fluid groups for select model configurations.

Fluid GroupCase MaterialRotor TypeRotor MaterialBearing MaterialSeal MaterialFluid Compatibility
Standard FuelsAA or SSLVPPSCarbonVitonAviation Fuel
Diesel Fuel
Light Fuel Oil
E85AA or SSLVPPSCarbonTeflonE85
Solvents (Not halogenated solvents)
Automatic Transmission Fluid (ATF) and HIGH TEMPAA or SSHVPPSCarbonVitonATF Oils
Hydraulic Oils
Automotive Lube Oil, & Crank / Gear Case Oil
Fuel Oils with viscosity>300 cst
heated oils of 120-180F (50-80C)
LPG (Liquefied Petroleum Gas)AALVPPSCarbonUL Listed, Buna N & VitonLPG
DEF (Diesel Exhaust Fluid)SSLV
DEF - Dispenser (TS06C)
DEF - Bulk Transfer (TS10C - TS20C)
Herbicides / PesticidesAA or SSHVPPSTeflonTeflonHerbicides & Pesticides
FertilizerAA or SSLVPPSTeflonVitonFertilizer
Caustics (1-49% concentration)
Caustics (50% & higher conc)

Abbreviations: LV=Low Viscosity, HV=High Viscosity, AA=Anodized Aluminium, SS= Stainless Steel, PPS=Polyphenylene Sufide resin.


It is critical to consider the actual flow rate of the application. If the flow rate in the system fluctuates, the minimum, normal, and maximum values will be needed for full evaluation and model selection.

a.) The flow rate for the application should be between 50 and 80% of the rated capacity of the meter for optimum lifetime of the product.

b.) Make sure the flow rate for the application is within the operating range of the meter. With operating temperature and viscosity characteristics of the fluid, determine the recommended maximum operating flow arte for the various meter options/sizes (TABLE 3A and 3B) and choose the meter that fits the desired flow rate. See "Sizing Example" on page 5.


Viscosity is the liquids resistance to flow. The higher the resistance, the greater the /P across the flow meter, and the greater the wear factor on the flow meter. The primary consideration with regard to viscosity is it's affect on recommended flow rates. In general, the higher the viscosity of a fluid, the lower the recommended operating flow rate for a particular meter. Refer to TABLE 3A (TM METERS) and TABLE 3B (TS Meters).


All applications with operating temperatures higher than +250 (+120C) are subject to individual approval by TTS (The Wave Form pulser is limited to + 125C = +257F). Operating temperature range impacts flow meter pressure rating as outlined in section 3 (Liquid Viscosity). Other considerations:

Low Ambient and/ or Liquid Temperature

  • Mechanical meters are rated to -40F (-40C).
  • Mechanical meters are NOT suitable for cryogenic service (low liquid temperature/ normal ambient), as condensation ice interferes with the calibrator drive shaft.
  • Electronic flow sensors are rated to -40F (-40C). Ratings for signal conditioner & electronic registers vary; some LCDs work to -13F (-25C) but many have significantly higher minimum temperature ratings. For operation to -40F (-40C) an internal heater or a heater enclosure is required.

High Ambient and/or Liquid Temperature

  • When liquid temperature exceeds +120F (+50C), use HV (High Viscosity) rotors in oval gear meters.
  • Temperature ratings for electronic signal conditioners & registers vary (refer to spec sheet for individual models), for many models the max temperature is +158F (+70C). If higher liquid temperatures can be encountered, move the electronic register away from the flow meter to a location with a lower temperature.
  • Maximum operating temperature for mechanical register (TS Series) is +180F (+80C). For higher operating temperatures, use a remote electronic register.

Thermal Impact

Conditions of wide and instantaneous changes in fluid temperatures should be avoided. the "thermal Impact" can affect seals and bearings adversely.


The value shown on TTS Precision Meter Specification sheets applies at a base temperature of 100F (38C). At higher operating temperature, flow meter pressure rating is reduced. Refer to TABLE 5.


If the meter is purchased without a register, it is important to consider whether or not the pulse resolution of the meter is compatible with the register or other component (PLC or fluid management system) that is to be used with the meter. Make sure the pulse ON time is long enough for the register to read the signal (See TABLE 3A, 3B, or 3C).


Truck applications require special consideration with regard to air elimination. There are two primary types of applications to consider; trucks with pumps and trucks with gravity flow.

Trucks with Pumps

Commonly used for retail delivery, these vehicles can have from 500 - 3,000 gallon (2,000-10,000 litre) tank capacity. While smaller vehicles might have a single-compartment tank, most larger vehicles have multiple compartments. In tank truck systems subject to W&M regulations, an air eliminator is always required. If the system must satisfy SPLI-Compartments Tes ng, the vehicle design (tanks, manifold, and pump) becomes a factor in the efficiency of the air eliminator. If the system is not designed to minimize the amount of air drawn into the pump, the task of air separation becomes more difficult.

  • On medium viscosity liquids such as diesel fuel & light fuel oils, a high capacity strainer might be required to give the air additional time to rise out of the liquid.
  • on single -compartment trucks, a standard Air Eliminator will suffice. The BPV is recommended.
  • On gasoline and other low fuel viscosity liquids, a standard Air Eliminator will suffice. The BPV is recommended.
  • On diesel fuel/light fuel oils, the BPV is recommended. If the viscosity exceeds 6 feet/s (180cm/s) a high capacity strainer is required to satisfy split-compartment testing. This limit translates to: 2" system 70 GPM (265 lpm) for a 2" system, and 140 GPM (530 lpm) for a 3" system.
  • On high viscosity liquids (>150 -170 cSt = 7-800 SSU), effective air elimination is difficult/impossible. A high capacity strainer should perhaps be considered.

Trucks with Gravity Pumps

Contact us for further details.


Example 1:

System Flow Rate50 gpm
FluidLube Oil - SAE 30
Operating Temperature40F (4C)
Viscosity at Operating Temperature1,300 cSt
Recommended Flow FactorD=65% (HV Rotors)
ModelBoreNom Flow, US Gallons/MinNom Flow, Litres/MinFlow FactorTable 3BMeter Flow Correction Due to ViscosityAchieves desired flow rateSystem Flow Rate within 50% to 80% of meters corrected rated flow?
TS10A1"4015065%=26.0NO192% (NO)
TS15A1.5"6023065%=39.0NO128% (NO)
TS20A2"15057065%=97.5YES51% (YES)
TS30A3"20076065%=130.0YES38% (NO)

USE: TS20A with High Viscosity rotors. Example meter item number for Electronic meter with no register, HV rotors: TS20AW04XVTU

Example 2:

System Flow RateSAME AS ABOVE
Operating Temperature80F (21C)
Viscosity at Operating Temperature235 cSt
Recommended Flow FactorG=100% (Lv Rotors)
ModelBoreNom Flow, US GallonsNom Flow, Litres/MinFlow FactorTable 38Meter Flow Correction Due to ViscosityAchieves desired flow rate?System Flow Rate within 50% to 80% of meters corrected flow?
TS10A1"40150100%=40.0NO125% (NO)
TS15A1.5"60230100%=60.0YES83% (NO, but OK)
TS20A2"150570100%=150.0YES33% (YES)
TS30A3"200760100%=200.0YES25% (NO)

USE: TS20A with 'LV' (Low Viscosity) rotors. Example meter item number for Electronic meter with no register, HV rotors: TS15AW04XATU


OPTIONS LISTED BELOW - Are listed because of their popularity, for other meter options, please contact us for a price

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Product CodeTUT5PF6I266

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