Why you “should” consider using turbine flowmeters!...(Part of Spirax Sarco) Invalco (Part of FMC Technologies) (Part of Badger Meter) (Part of TASI Group) (Part of Cameron) Licensed

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Why you Why you ““shouldshould””consider using consider using

turbine flowmeters!turbine flowmeters!

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Hoffer Hoffer FlowmetersFlowmetersOverview 101 Overview 101 –– The BasicsThe Basics

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Section 1 Section 1 --

History of turbine History of turbine flowmetersflowmeters & & overview of overview of capabilitiescapabilities

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Initial development of turbine flowmeters was for Initial development of turbine flowmeters was for fuel measurement on aircraft.fuel measurement on aircraft.

1940’s

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COX Instruments

Developed turbine flowmeters in 1940'sPOTTER AERONAUTICAL

Flow Technology, Inc. (Owned by Roper)

Kent Meter (UK)

Brooks Instruments

Smith Meter

DANIEL

(Owned by American Industrial PartnersCapital Fund)

(FMC Smith)

(Out of Business)

SPONSLER

Flow MeasurementSystems Inc.

(Kent / AMCO)

Barton(Part of Cameron)

(Part of Emerson Process Management)

(Part of Liquid Control Group)

(Part of ABB ProcessAutomation Systems)

(Part of Badger Meter)COX Instruments

EMCO(Part of Spirax Sarco)

Invalco(Part of FMC Technologies)

(Part of Badger Meter)

(Part of TASI Group)

(Part of Cameron)

Licensed byPotter:

Others:Spin OffCompanies:

Founded by formerPotter employees:

Circa 1980’s thru 2015

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Industrial Turbine Flow Meter Companies –

Circa 2020

Industrial, Oil & Gas, Automotive, Aerospace, Military and Steel

Blancett - Industrial, Oil & Gas, Sanitary (food, beverage, and pharmaceutical).

Cox - Automotive

Industrial, Oil & Gas, and Cryogenic

KEM - Oil & Gas, Automotive, ChemicalLitremeter - Oil & Gas, Automotive, and

Mining

Industrial, Oil and Gas

Industrial, Oil & Gas, Automotive, Aerospace, Steel and Sanitary

(food, beverage, & pharmaceutical), Power Gen, Military and Cryogenic

FTI Flow Technology, Inc.

Flow Technology

Turbines, Inc.

Blancette & Cox

KEM & Litremeter

Cameron - Nuflow

Markets company is active in:

Markets company is active in:

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Fast forward 7 decades and turbine flowmeters Fast forward 7 decades and turbine flowmeters remain a viable flow solution!remain a viable flow solution!

Today

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Hoffer Flow Controls Privately-held corporation located in

Elizabeth City, NC. Noted manufacturer of turbine flowmeters

for liquid, gas and cryogenic flow measurement.

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1010

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Quality SystemsQuality Systems

ASME Certified WeldersASME Certified Welders Full Material TraceabilityFull Material Traceability Full Range of QA Service AvailableFull Range of QA Service Available

Hydrostatic TestingHydrostatic Testing Dye Penetrant TestingDye Penetrant Testing XX--RaysRays NACE ComplianceNACE Compliance UltrasoundUltrasound

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Regulatory StandardsRegulatory Standards

Our systems meet or exceed the following Our systems meet or exceed the following standards:standards:

—— ISO 9001ISO 9001—— ISO 17025ISO 17025—— PED 97/23/ECPED 97/23/EC—— Hand Book 44 USAHand Book 44 USA—— OIML, ROIML, R--8181--WorldWorld—— CSA CSA –– CanadaCanada—— NIST NIST -- USAUSA—— PTB PTB –– GermanyGermany—— CE Standard CE Standard –– EuropeEurope—— Dantest Dantest –– DenmarkDenmark—— ATEX Quality System CertificationATEX Quality System Certification

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Vertically integrated manufacturing facilities Vertically integrated manufacturing facilities includingincluding……

Machine ShopMachine Shop Fabrication ShopFabrication Shop Hydrostatic & Dye Penetrant ShopHydrostatic & Dye Penetrant Shop Electronic Assembly & Test ShopsElectronic Assembly & Test Shops Flow Meter Calibration ShopFlow Meter Calibration Shop

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Today Hoffer is recognized as the Today Hoffer is recognized as the World Leader in World Leader in

Turbine Meter TechnologyTurbine Meter Technology

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Some of the major markets servedSome of the major markets served……..

Oil & Gas Upstream and DownstreamOil & Gas Upstream and Downstream CryogenicsCryogenics Pharmaceuticals & BiotechPharmaceuticals & Biotech MilitaryMilitary AerospaceAerospace Automotive Manufacturing & RacingAutomotive Manufacturing & Racing Power ProductionPower Production

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Turbine Flow Meters

Turbine flow meters measure the velocity of the moving fluid.

They are typically applied in relatively clean, low to mid-viscosity applications.

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Meter Body Pickup Coil

Hangers or Integral Flow Straightener

Thru-Shaft w/Locknuts

Coil Riser

Deflector Cones

Flat-Bladed Turbine Rotor

Basic Principle of Operation Basic Principle of Operation

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Basic Definitions

LINEARITY:

K-FACTOR:

REPEATABILITY:

A measure of the accuracy of the device which is themaximum percentage deviation from the average K-Factor.

The number of output pulses the flowmeter produces per engineering unit of the volume throughput.

A statement of the ability of a measuring device to display the same value of a measured variable under identical conditions.

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Turbine FlowmeterPerformance Characteristics

LIN

EA

RIT

Y

FLOW RANGE ATDESIGNATED LINEARITY

K-FACTOR

OUTPUT VOLTAGE (Mv)

OUTPUT FREQUENCY (Hz)

PRESSURE LOSS (PSID)

PR

ES

SU

RE

LO

SS

(P

SID

)

OU

TP

UT

FR

EQ

UE

NC

Y (

hZ

)

OU

TP

UT

VO

LTA

GE

(M

v)

K-F

AC

TO

R (

CY

C/G

AL

)

FLOW RATE

2020

Why you Why you ““shouldshould””consider using Hofferconsider using Hofferturbine turbine flowmetersflowmeters!!

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Mini-Flowmeters for low flow

liquid and gas applications.

“Premier Natural Gas Series” for custody transfer of natural gas.

Sanitary Flowmeters for food, beverage, pharmaceutical and

bio-tech.

HO Series with MS Flared

fittings commonly used

in industry.

Providing Providing ““Application SpecificApplication Specific””flow solutions for our customers is the key.flow solutions for our customers is the key.

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Turbine Meter Advantages Turbine Meter Advantages ––PerformancePerformance

High degree of accuracy High degree of accuracy (+/(+/--.25% of reading) and .25% of reading) and great repeatability (+/great repeatability (+/--.1%).1%)

Suitable for Suitable for ““custodycustody”” transfertransfer

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Turbine Meter Advantages Turbine Meter Advantages ––Response TimeResponse Time

Fast, dynamic Fast, dynamic response response timetime

Measured in milliseconds!Measured in milliseconds!

Commonly used for rocket Commonly used for rocket propulsion propulsion

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Turbine Meter Advantages Turbine Meter Advantages ––Shock, vibration & temp extremesShock, vibration & temp extremes

We pWe pioneered the use of turbine ioneered the use of turbine flowmeters on cryogenic delivery flowmeters on cryogenic delivery trucks in the 1970trucks in the 1970’’ss

Suitable for installation on trucks Suitable for installation on trucks subject to shock & vibration subject to shock & vibration

Subject to wide operating Subject to wide operating temperature extremestemperature extremes

Our flow system is the Our flow system is the ““cash cash registerregister”” on many bulk delivery on many bulk delivery cryogenic trucks domestically and cryogenic trucks domestically and internationallyinternationally

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Turbine Meter Advantages Turbine Meter Advantages ––ReliabilityReliability

Metering control fluid on a BOPMetering control fluid on a BOP

Hoffer replaced Hoffer replaced ““leakingleaking”” mag mag metersmeters

High High ““internalinternal”” & & ““external external pressurespressures””

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Turbine Meter Advantages Turbine Meter Advantages ––Robust DesignRobust Design

Flowmeter Flowmeter ““internalsinternals””redesigned redesigned to meet to meet ““high high shockshock”” and and ““vibrationvibration”” MIL MIL standards for US standards for US Navy.Navy.

Hoffer has supplied multiple Hoffer has supplied multiple size turbine flowmeters built to size turbine flowmeters built to meet meet MILMIL--STDSTD--901D (shock901D (shock--high impact) and MILhigh impact) and MIL--STDSTD--167167--1 1 (vibration) for the US Navy. (vibration) for the US Navy.

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Turbine Meter Advantages Turbine Meter Advantages Robust DesignRobust Design

Three Piece Construction

Threaded insert secures flowmeter internals inside

meter housing

Flowmeter Housing

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Turbine Meter Advantages Turbine Meter Advantages ––Wide RangeabilityWide Rangeability

Flowmeters can be configured Flowmeters can be configured to provide repeatable flow ranges to provide repeatable flow ranges with up to 100:1 with up to 100:1 turndown ratios. turndown ratios.

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Liquid Size SelectorFor

Standard HO Series Turbine FLowmeters

Liquid Size SelectorFor Standard HO Series Turbine Flowmeters

NOTE: NOTE: Performance enhancement techniques are routinely applied to prodPerformance enhancement techniques are routinely applied to produce larger linear and usable flow ranges. uce larger linear and usable flow ranges. Consult with the applications group at Hoffer with your requiremConsult with the applications group at Hoffer with your requirements.ents.

30283028--5677556775800800--150001500052995299--454204542014001400--12000120001212

20442044--3709337093540540--9800980024602460--3028030280650650--800080001010

10221022--2422424224270270--6400640012491249--1968219682330330--5200520088

473473--1362613626125125--36003600757757--1097710977200200--2900290066

379379--94639463100100--25002500530530--75707570140140--2000200055

MCP not recommended in 4MCP not recommended in 4”” and larger sizesand larger sizes

189189--567856785050--15001500284284--473147317575--1250125044

30.330.3--3028302888--800800151151--246024604040--6506507676--302830282020--800800151151--246024604040--65065033

1919--1893189355--5005009595--151415142525--40040056.856.8--189318931515--5005009595--151415142525--40040022--1/21/2

10.410.4--104110412.752.75--27527556.856.8--8528521515--2252254242--104110411111--27527556.856.8--8528521515--22522522

6.66.6--6626621.751.75--17517530.330.3--49249288--1301301919--66266255--17517530.330.3--49249288--13013011--1/21/2

4.354.35--4354351.151.15--1151152323--35235266--939311.411.4--43543533--1151152323--35235266--939311--1/41/4

2.8-284.75-7515-2274-607.6-2842-7515-2274-601

1.31.3--132.5132.5.35.35--35359.59.5--1101102.52.5--29295.75.7--132.5132.51.51.5--35359.59.5--1101102.52.5--29293/43/4

.75.75--75.775.7.2.2--20206.66.6--60.660.61.751.75--16163.43.4--75.775.7.9.9--20206.66.6--60.660.61.751.75--16165/85/8

.45.45--4545.12.12--12124.74.7--36361.251.25--9.59.52.32.3--4545.6.6--12124.74.7--36361.251.25--9.59.51/21/2

.28.28--3434.075.075--992.82.8--28.428.4.75.75--7.57.51.11.1--3434.3.3--992.82.8--28.428.4.75.75--7.57.53/8*3/8*

.24.24--1717.0625.0625--4.54.51.31.3--13.213.2.35.35--3.53.5.95.95--1717.25.25--4.54.51.31.3--13.213.2.35.35--3.53.51/4*1/4*

Repeatable Repeatable RangeRange(LPM)(LPM)

Repeatable Range

(US GPM)

Linear RangeLinear Range(LPM)(LPM)

Linear RangeLinear Range(US GPM)(US GPM)

Repeatable RangeRepeatable Range(LPM)(LPM)

Repeatable Range(US GPM)

Linear RangeLinear Range(LPM)(LPM)

Linear RangeLinear Range(US GPM)(US GPM)

DiameterDiameter(inches)(inches)

MODULATED PICKUP COILMAGNETIC PICKUP COILFlowmeter Size

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Turbine flowmeters are highly “repeatable” (+/-.1%). “Smart” Electronics can correct for non-linearity of the flowmeter.

PLOT OF TURBINE FLOWMETER CALIBRATION“K-FACTORS” (pulses/gallon)

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1% 10% 100%

Flow Rate

Accuracy

Percent of Reading

Percent of Full Scale Absolute Accuracy Becomes Worse with Decreased Flow

Linearity and repeatability are expressed in terms of Linearity and repeatability are expressed in terms of ““percent of readingpercent of reading”” rather than rather than ““percent of full scalepercent of full scale””

such as a pressure head measurement sensorsuch as a pressure head measurement sensor

Turbine Meter Advantages Turbine Meter Advantages ––Of Reading vs. Percent of Full ScaleOf Reading vs. Percent of Full Scale

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Section 3 Section 3 --

Comparison of Hoffer Comparison of Hoffer turbine turbine flowmetersflowmeters to to

““othersothers””and how Hoffer is and how Hoffer is

uniqueunique

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All All ““turbine flowmetersturbine flowmeters”” are not created equal are not created equal --

Some are Plastic

Some are Aluminum

Some are Cast

There are many

differentdesigns of“Turbine meters”

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Common Design Elements Common Design Elements ––ffor a or a

““high performance turbine flowmeterhigh performance turbine flowmeter””

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Rotor Construction Rotor Construction ––Precision MachinedPrecision Machined

All Rotor assemblies are precision machined. All Rotor assemblies are precision machined.

Hoffer does not use cast rotors.Hoffer does not use cast rotors.

Cast rotors are Cast rotors are ““heavierheavier”” than rotors machined than rotors machined from solid bar stock. Heavier rotors translate to from solid bar stock. Heavier rotors translate to slower dynamic response to changes in flow rates. slower dynamic response to changes in flow rates.

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Rotor Construction Rotor Construction ––Rotor DesignRotor Design

Hoffer uses flat rather than curved blades on its Hoffer uses flat rather than curved blades on its rotorsrotors

Curved blades are excellent for extracting the Curved blades are excellent for extracting the maximum amount of energy from a fluid stream maximum amount of energy from a fluid stream which is why they are used in power and jet which is why they are used in power and jet engine turbines. As a result, however, they also engine turbines. As a result, however, they also produce a higher pressure drop.produce a higher pressure drop.

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Rotor Construction Rotor Construction ––Rotor DesignRotor Design

Flat bladed rotors result in a lower pressure dropFlat bladed rotors result in a lower pressure drop

Machined rotors can be Machined rotors can be ““customizedcustomized”” with thicker with thicker blades for use in abrasive servicesblades for use in abrasive services

The blade The blade ““lengthlength”” may be adjusted to accommodate may be adjusted to accommodate larger particulate. This approach is commonly utilized larger particulate. This approach is commonly utilized in the design of our oil patch flowmeters. in the design of our oil patch flowmeters.

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Optimization of Optimization of ““flow rangeflow range”” --Supplying various blade angles and rotor designsSupplying various blade angles and rotor designs

Hoffer provides four different blade angles (15, 20, 25 & 30 degree) for each size meter within our HO Gas product line to optimize the ideal flow range selection.

The “steeper” the blade angle; the lower the flow rate capability.

We offer “bladed” and “rim” type rotor assemblies. Rim rotors are typically specified for custody transfer applications and produce more “pulses” (better resolution).

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Bladed Rotor AssemblyBladed Rotor AssemblyRim Rotor Assembly

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In conclusion, you should consider using a Hoffer turbine flowmeters if…

Accuracy is important You need a robust flowmeter You require dynamic response to changes in flow

conditions You require a wide flow range You have a specific “footprint” (space) in which the

flowmeter must fit You want a flowmeter that is light in weight and easy

to install

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How can we help you?