2.0 sampling brochure

8/9/2019 2.0 Sampling Brochure

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automaticsampling

systemsfor liquids

proven solutions for complete systemsusing the FMA sampling technology

manufactured by Doedijns B.V.


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Automatic $ampling

Doedijns b.v. in the Netherlands has been

designing and building pipeline samplingsystems since 1995, using probes and samplersfrom FM !td "#$.%. &n December '((',Doedijns ac)uired the sampling activities of

FM. Doedijns no* manufactures the FMsampling devices itself plus complete automatic

pipeline sampling systems to the customer+sspecifications and in accordance to international

standards, e.g. &-1/1 and 0M D.1//.

For our systems *e can offer fi2ed or retractableprobes, in3the3line or fast3loop samplers andfi2ed or variable volume receivers. amplereceivers *ith high3energy internal mi2ing areavailable for handling high vapour pressuresamples *ithout loss of light ends.

s a supplier of in3line mi2ing systems, Doedijns

has e2tensive 4no*ledge of selecting systemsre)uired to condition the pipeline contents topermit representative sampling.

(ntroduction to sampling

utomatic sampling allo*s the )uality "e.g. *aterand sediment content% of a pipeline transfer to be

established. 0his together *ith the metered)uantity is used to calculate the product volume

for commercial and fiscal transactions. 0hedominant application is for crude oils, *hichcommonly contain *ater and sediment.

Four steps essential to achieve an accurateanalysis of the pipeline contents are as follo*s

13 6ipeline conditioning7mi2ing to ensure free

*ater and sediment are evenly distributed acrossthe pipeline diameter before entering the sample

or ta4eoff probe. 8orrect positioning of sampleprobe is essential for a representative sample.

'3 2traction of small samples "grabs% atflo*7time related intervals under all conditions"changing pressure and temperature%

3 Maintaining the integrity of the receiver

contents by ade)uately mi2ing before sub3samplee2traction

3 ccurate analysis of the sub sample.

0he t*o basic techni)ues for ta4ing samples from

pipelines are the fast3loop system and the in3the3line system. :oth are described in &-1/1 and0M D.1//. Doedijns offers both types.


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Fast loop or Bypass$ampling

0he fast loop uses a cell sampler mounted in a

bypass loop "typically 1;N:% through *hich arepresentative portion of the pipeline product ispumped. 0he cell sampler e2tracts a successionof small samples "grabs%, typically 1 ml andpumps these into sample receiver. relativelysmall pump is re)uired to drive the fluid through

the loop.

0he fast3loop sampling system has a number ofadvantages over direct inline sampling especially

for *et and dirty oils

3 &nlet area of the ta4eoff probe isappro2imately < times larger than an in3the3line sample probe. 0his means that thedemands on pipeline mi2ing are lessstringent.

3 !arge bore sampling probe and flo* line are

less prone to bloc4ages3 0he loop pump provides e2tra mi2ing

3 &mproved accessibility of the sampler forservicing

0o obtain &so4entic flo* in the fast loop line aflo* control valve, bypass system or motor

fre)uency controller is used.

Features of the Doedijns7FM 8ell ampler are

3 uitable for all applications up to N&

8lass 9(( "15( barg%3 6neumatic or hydraulic operation,

double3acting motor3 N8 version available for sour service3 -ptional sample grab volumes (.5, 1.(

and '.( ml3 8hoice of *etted3parts materials

3 Fully meets all the re)uirements of&- 1/1 and 0M D.1//

3 ngineered for reliability, *ith duplicated

oil seals

(n'he%ine /('%0 $ampling

-ur &0! sampler uses the same double3actingsampling mechanism as the cell sampler. 0his is

mounted on a 1; N: probe for insertion in the

pipeline.

0he &0! sampler is an economic means ofsampling directly from the pipeline *herevariation in the fluid )uality is lo*.0he &0! can be used on pipelines ranging from ;to =; N: and rated up to N& 8lass 9(( "15(barg%.

0he &0! sampler is inserted through a pipelineno>>le, ';3? N: or larger. 0he &0! sampler is

normally fitted *ith a seal housing and retractor

to allo* insertion and *ithdra*al on a livepipeline. Non3retractable versions are alsoavailable.

-ther features of the Doedijns7FM &0! ampler 3 6neumatic or hydraulic operation,

double3acting motor

3 N8 version available for sour service3 -ptional sample grab volumes (.5, 1.(

and '.( ml3 8hoice of *etted3parts material

3 uitable for very high viscosity products

3 Fully meets the re)uirements of &- 1/1and 0M D.1//

3 ngineered for reliability, *ith duplicatedoil seals

3 -ptional facilities for in3situ flushing,

purging and testing


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Applications and features

3 6assive device installed in li)uid or gaspipeline to e2tract flo* of representative

sample.3 #sed for e2ternal loop automatic sampling

systems, on3line analysis systems and manualsampling.

3 Designs to suit all pipeline si>es and ratings,for any li)uid or gas application.

3 Fi2ed type probes for economy but need deadline for installation and retrieval.

3 @etractable probes allo* insertion andretraction *ith pipeline live, for sphere

passage and servicing, t*in3scre* retractor,hand3operated.

3 tainless steel construction, carbon steelfittings *hen appropriate for economy, flange

connection standard.3 N8 models for sour service.3 8onform to &-1/1 "0M D.1//% for

sampling li)uid petroleum products.3 6itot3tube *ith chamfered sharp entry for

sampling li)uids containing suspended

droplets, e.g. *ater in crude oils. :evelled orother tip shapes available.

3 tem diameter typically '1 mm to = mm,depending on mechanical strength and flo*

rate re)uired.3 tem bore from mm up*ards, to suit

application.3 6robe isolation valves as specified by user.

$ampling probes

&n order to ta4e samples at an optimum position

in the pipeline a sample probe of some form or

other is re)uired. 0his may be for bypasssampling systems, for gas sampling systems orfor ta4ing manual samples.

Doedijns manufacture a standard range of probesbut can also offer custom3designed units to suitthe customer+s individual needs e.g. pipeline si>e,pressure rating, no>>le inlet si>e, high pipelinevelocities, fi2ed or retractable, number and style

of inlet ports, *ith or *ithout sample returnconnection.


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$ampler

&n both fast loop and inline sampling the sampleris actuated by a solenoid valve *hich in turn is

driven by a controller, generating either a flo*

proportional or time based signal, depending onthe process.

ampler actuation is usually air driven ho*everin many circumstances *here air is not availableor is undesirable, a hydraulic driven actuator is astandard alternative.

$ample receivers

amples collected *ith theautomatic fast3loop or in3linesamplers are transferred to asample receiver for storage.

ome of the features of the

Doedijns receivers are3 all types are available for li)uid,

gas, automatic and manual sampling.3 pecial designs and features can be

produced to suit customers needs.3 tandard material 1< stainless steel, non

standard special material available.3 Fi2ed volume and variable volume models for

lo* and high pressure.3 #ni)ue 6iston &nternal Mi2ing @eceiver "6&M@%

*ith piston shafts for homogeni>ing hvpoil7*ater mi2tures.

3 !arge volume atmospheric AcansA for stablecrude oils etc.

3 Full range of receiver ancillaries, localindicators, handles, protective frames and&0 approved transit cases.

(nternal Mi1ing eceiver

special sample receiver is the &nternal Mi2ing@eceiver or 6&M@. -riginally developed for :6 this

sample receiver is e)uipped *ith a high energy

mi2ing facility.

0he 1 liter 6&M@ is no* generally used forcollecting daily samples and the liter 6&M@ forthe *ee4ly samples to send ashore. 0he 5( mland 1(( ml baby 6&M@s are easier to handle forair freight, for manual sampling and for sub3

sampling from fi2ed receiver 6&M@s.

0he Doedijns 6&M@ features

3 #ni)ue piston receiver *ith high energy mi2ing.

3 &deal for live crude, li)uid natural gas andcondensate to homogeni>e the product *ithout losing light ends. 3 pproved by !loyds to :55(( and by DNB. 3 ub3sampling connection for pressure

syringe. 3 6re3charging onshore avoids the

need for gas supplies at site. 3 asily dismantled for servicing. 3 @emote contents indicator.


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$ampling $ystems

&n addition to the many specialised samplingproducts *e manufacture Doedijns also offersturn4ey sampling systems. 0hese systems aredesigned and built according to yourspecifications.

-ur sampling systems include

3 Design and engineering according to the applicable standards.3 8onnection points.3 Ceigh scale"s%3 Flo*, level and pressure alarms.3 6umps, filters, mi2ers3 lectronic control and data3ac)uisitioncomponents.

3 tainless steel or @6 enclosure.3 Full testing "F0 and 0% and certification.

3 Dra*ings, documentation, manuals etc.

$tandards

:oth the fast loop and inline sampling systemsdesigned and built by Doedijns are based on the

&-31/1 and 0M D.1// standards and thee)uipment totally complies *ith these. -ther

standards "e.g. -0% may be specified.

Doedijns B.V.

Doedijns b.v. is part of the Fluitronics roup. Fromour branch offices in Caddin2veen, 8uij4, Eoogeveen,Bal4ens*aard and !abuan "Malaysia% more than 1'(employees *or4 in three disciplines hydraulics,pneumatics and instrumentation. Cith a team ofspecialists *e aim at the design and assembly ofsystems "standard and custom3design%, the sales anddistribution of high )uality components "3brands%

and the rendering of '3hours service.

For more information please contact

Doedijns :.B.

8oenecoop 1(31(5, '/1 6E Caddin2veen 6- :o2 1/9, '/( D Caddin2veen

0he Netherlands

0el. 1 "(%1=' ( '= == Fa2 1 "(%1=' ( '/ /5

3mail infoGdoedijns.nl

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