4 5

Produkte – Products – Produits

710 Ventile Valves Vannes Seite/Page/Page

Handventile Hand valves Vannes manuelles 5Feindosierventile Micrometering valves Vannes HP micrométriquesPneumatische Ventile Air-operated valves Vannes pneumatiquesHochtemperaturventile High-temperature valves Vannes à haute températureLaborventile LHP Laboratory valves LHP Vannes de laboratoire LHPPrüfbankventile Test bench valves Vannes de bancs d’essaiMotorventile Motor-driven valves Vannes motoriséesMehrfach-Ventilleisten Multivalve manifolds Distributeurs multivannesATEX-Ausführungen ATEX versions Versions ATEX

720 Fittings Fittings RaccordsHP-Verschraubungen HP connectors Raccordements HP 41Fittings/Übergangsstücke Fittings/adapters Raccords/adaptateursDrehverbindungen Swivel joints Raccords tournantsRückschlagklappen Check valves Clapets antiretourSicherheitsorgane Safety heads Disques de rupture et soupapesÜberströmventile Relief valves Limiteurs de pressionFilter Filters FiltresLaborfittings LHP Laboratory fittings LHP Raccords de laboratoire LHP

730 Rohre und Schläuche Tubings and hoses Tubes et flexiblesHochdruckrohre High-pressure tubings Tubes haute pression 61Nippel Nipples Tubes de jonctionHochdruckschläuche High-pressure hoses Flexibles haute pression

740 Druckbehälter Pressure vessels EnceintesSichtzellen Optical cells Enceintes optiques 65Fenstereinheiten Window units Fenêtres optiquesAutoklaven Autoclaves Autoclaves

750 Druckerzeuger Pressure generators Générateurs de pressionHandspindelpressen Hand pumps Pompes manuelles 71Elektrische Spindelpressen Motor-driven pumps Pompes électriquesDruckverstärker Pressure intensifiers Multiplicateurs de pressionMembrankompressoren Diaphragm compressors Compresseurs à membraneZahnradpumpen Gear pumps Pompes à engrenagesHandhebelpumpen Hand lever pumps Pompes à levier à main

760 Hochdrucksysteme HP Systems Systèmes HPDruckprüfsysteme Pressure test systems Bancs d’essai 99Druckerzeugersysteme Pressure-generating systems Unités générateurs de pressionAutofrettieranlagen Autofrettage systems Unités d’autofrettageHochdruckextraktion Supercritical extraction Extraction supercritiquePhasengleichgewichts- Phase equilibria apparatus Bancs d’équilibres de phasesapparaturenReaktionen und Mikronisation Reactions and micronization Réactions et micronisationSterilisationsanlagen Sterilization systems Unités de stérilisation

770 Zubehör Accessories AccessoiresWerkzeuge für Konus, Tools for coning, Outils pour cônes, 85Gewinde, zum Biegen und threading, bending, filetage, cintrage, Nachschneiden reaming and deburring remise en état et l’ébavurerStromdurchführungen Electrical connectors Connections électriquesThermoelemente +Pt100 Thermocouples +Pt100 Thermocouples +Pt100Manometer + Druckaufnehmer Gauges + pressure transducers Manomètres + transmetteurs de pressionAnzeigegeräte Druck + Temp. Pressure + temp. indicators Indicateurs de pression + température

086926_br_sitec_8440_sitec_br 12.10.12 08:19 Seite 2

Produkte – Products – Produits

710VentileValvesVannesSeite/Page/Page

HandventileHand valvesVannes manuelles5FeindosierventileMicrometering valvesVannes HP micrométriquesPneumatische VentileAir-operated valvesVannes pneumatiquesHochtemperaturventileHigh-temperature valvesVannes à haute températureLaborventile LHPLaboratory valves LHPVannes de laboratoire LHPPrüfbankventileTest bench valvesVannes de bancs d’essaiMotorventileMotor-driven valvesVannes motoriséesMehrfach-VentilleistenMultivalve manifoldsDistributeurs multivannesATEX-AusführungenATEX versionsVersions ATEX

720FittingsFittingsRaccordsHP-VerschraubungenHP connectorsRaccordements HP41Fittings/ÜbergangsstückeFittings/adaptersRaccords/adaptateursDrehverbindungenSwivel jointsRaccords tournantsRückschlagklappenCheck valvesClapets antiretourSicherheitsorganeSafety headsDisques de rupture et soupapesÜberströmventileRelief valvesLimiteurs de pressionFilterFiltersFiltresLaborfittings LHPLaboratory fittings LHPRaccords de laboratoire LHP

730Rohre und SchläucheTubings and hosesTubes et flexiblesHochdruckrohreHigh-pressure tubingsTubes haute pression61NippelNipplesTubes de jonctionHochdruckschläucheHigh-pressure hosesFlexibles haute pression

740DruckbehälterPressure vesselsEnceintesSichtzellenOptical cellsEnceintes optiques65FenstereinheitenWindow unitsFenêtres optiquesAutoklavenAutoclavesAutoclaves

750DruckerzeugerPressure generatorsGénérateurs de pressionHandspindelpressenHand pumpsPompes manuelles71Elektrische SpindelpressenMotor-driven pumpsPompes électriquesDruckverstärkerPressure intensifiersMultiplicateurs de pressionMembrankompressorenDiaphragm compressorsCompresseurs à membraneZahnradpumpenGear pumpsPompes à engrenagesHandhebelpumpenHand lever pumpsPompes à levier à main

760HochdrucksystemeHP SystemsSystèmes HPDruckprüfsystemePressure test systemsBancs d’essai99DruckerzeugersystemePressure-generating systemsUnités générateurs de pressionAutofrettieranlagenAutofrettage systemsUnités d’autofrettageHochdruckextraktionSupercritical extractionExtraction supercritiquePhasengleichgewichts-Phase equilibria apparatusBancs d’équilibres de phasesapparaturenReaktionen und MikronisationReactions and micronizationRéactions et micronisationSterilisationsanlagenSterilization systemsUnités de stérilisation

770ZubehörAccessoriesAccessoiresWerkzeuge für Konus, Tools for coning,Outils pour cônes,85Gewinde, zum Biegen undthreading, bending,filetage, cintrage, Nachschneidenreaming and deburringremise en état et l’ébavurerStromdurchführungenElectrical connectorsConnections électriquesThermoelemente+Pt100Thermocouples+Pt100Thermocouples+Pt100Manometer+DruckaufnehmerGauges+pressure transducersManomètres+transmetteurs de pressionAnzeigegeräte Druck+Temp.Pressure+temp. indicatorsIndicateurs de pression+température

086926_br_sitec_8440_sitec_br 12.10.12 08:19 Seite 2

Q × 1,000��1,000�Flow Velocity in m/sec.: v =

�ID2 × 2.8�

4

��1�2

Prüfbankventile – Test Bench Valves – Vannes de bancs d’essai –0.8 bar – 70 barWerkstoff: 1.4571 Material: AISI 316Ti Matériau: Z6 CNDT 17.12 max. 90°CSizing of high-pressure valves and high-pressure tubing systems

Sizing of high-pressure valves with the Coefficient of Flow (Kv)

The Coefficient of Flow (Kv) is the valve-sizing factor that permits selection of the appropriate valve to meet the flowrequirements in the development of a given fluid system. Undersized valves may result in high-pressure drops acrossthe valves, but possibly also in damaged valve seats due to erosion.

The Coefficient of Flow (Kv) for a valve defines the Flow of water in m3/h at room temperature which flows through a fully open valve, with a Pressure Drop (Dp) of 1 bar.

The actual Flow (Q) of a specific fluid in m3/h, with a specific Pressure Drop (Dp) in bar across the valve and a fluid Density (δ) in kg/dm3 is:

The Kv value is also the sizing factor to calculate the Pressure Drop (Dp) of a liquid flow across a valve:

If the Flow (Q), the maximum allowable Pressure Drop (Dp)and the Density (δ) of a liquid fluid are known, the requiredminimum Kv value may be calculated:

Based on this Kv value, the minimum valve orifice may bedefined according to the corresponding SITEC cataloguebulletins 710.01 – 710.11.

Example for the sizing of a valve

Liquid Flow (Q) = 0.5 m3/hPressure Drop (Dp) = 2 barDensity (δ) = 1 kg/dm3 (water)

To reach this mininum Kv value of 0.35 m3/h we choose thenext larger one available.A valve with orifice DN5, which features a Kv value of 0.51m3/h. And therefore:Up to 1,000 bar the 3/8"HP line with DN5; up to 2,000 barthe 9/16"HP line with DN5.

! The published Coefficients of Flow (Kv) are valid for straight-through valves Type 1.

! For angle valves (Type 2+6) the Kv factor may be increased by 50% against Type 1.

It should be noted that Dp and δ are entered in these for -mulas as absolute values without unit, as they are factors tothe base 1 bar and 1 kg/dm3 respectively.

The Cv values, which are still used in the USA, define the volume of water in US gallons per minute flowing through the open valve with a Pressure Drop of 1 PSI across the valve (Kv = Cv × 0.86).

Sizing of high-pressure tubing systems

With the selection of the required valve orifice based on theCoefficient of Flow (Kv), generally the Inside Diameter (ID) of the HP tubing is defined. Nevertheless we recommend tocheck it as well.

The following maximum Flow Velocities (v) must not be exeeded:

for liquids: 7 m/secfor gases: 25 m/sec

For return lines in the partially expanded state of the fluid,the following limits apply:

for liquids: 1.5 m/secfor gases: 6 m/sec

To calculate the allowable Flow (Q) in m3/h, the Flow Velocity of the fluid (v) in m/sec and the minimum InsideDiameter of the high-pressure tubing (ID) in mm, the following formulas apply:

Example for the sizing of a tubing system

Flow (Q) = 0.4 m3/h Flow Velocity (v) = 7 m/sec

The minimum Inside Diameter (ID) must be 4.52 mm.Therefore we may choose the tubings:

• 3/8" × 5.2 mm ID (730.2220) for pressures up to 2,400 bar or

• 9/16" × 4.8 mm ID (730.2120) for pressures up to 4,000 bar

or any other tubing with ID > 4.52 mm.

Liquid Flow in m3/h: Q = Kv × ��Dp

�δ

Kv = 0.5 m3/h × = 0.35 m3/h

· SITEC Catalogue bulletin 710.01

Minimum Coefficient of Flow in m3/h: Kv = Q ×��δ

�Dp

Pressure Drop in bar: Dp = δ × � Q2

�Kv2�

ID = = 4.52 mm

· SITEC Catalogue bulletin 730.01

Density of some liquids in kg/dm3

Acetone: 0.792 – Alcohol: 0.792 – Gasoline: 0.751 – Kerosene: 0.815 – Water: 1.0

��0.4 × 1,000��7 × 2.8�

Flow in m3/h: Q = ID2 × v × 2.8

Minimum Inside Diameter (ID) in mm: ID =

�v × 2.8���Q × 1,000�

086926_br_sitec_8440_sitec_br 12.10.12 08:19 Seite 4

VENTILE –VALVES –VANNES 750.01710.00

Die Ventile basieren auf dem Explosionsschutz nach ATEX 95 (Richtlinie 94/9/EG)

• Die SITEC HD-Ventile der Baureihen 910.XXXX und915.XXXX erfüllen die strengen Anforderungen zur Verwendung in explosionsgefährdeten Bereichen. Siedürfen nur in der Zone 1 (Gerätekategorie 2G) ein-

gesetzt werden.• Kennzeichnung nach EN 13463-5: II 2G c IIC TX.• Die Temperaturklasse TX wird hauptsächlich durch die

Mediumstemperatur bestimmt.• Zulässiger Umgebungstemperaturbereich:

–20 °C bis +80 °C.• Die Ventile der Reihen 910.XXXX und 915.XXXX ent-

sprechen den Reihen 710.XXXX und 715.XXXX und sindim gleichen Umfang lieferbar.

The valves are based on the explosion protection to ATEX 95 (EU Directive 94/9/EC)

• The SITEC high-pressure valves of the series 910.XXXXand 915.XXXX meet the stringent requirements for usein explosive atmospheres. They may only be used inZone 1 (equipment category 2G).

• Marking acc. to EN 13463-5: II 2G c IIC TX.• The temperature class TX is determined mainly by the

fluid working temperature.• Permitted ambient temperature range: –20°C to +80°C.• The valves of the series 910.XXXX and 915.XXXX cor-

respond to 710.XXXX and 715.XXXX and are available inthe same types.

Les vannes sont basées sur la protection contre les explosions ATEX 95 (Directive de l’UE 94/9/CE)

• Les vannes haute pression SITEC de la série 910.XXXXet 915.XXXX satisfont à l’exigence stricte d’applicationdans les zones dangereuses. Ils peuvent être utiliséesdans zone 1 (catégorie de l’équipement 2G).

• Marquage selon EN 13463-5: II 2G c IIC TX.• La classe TX de température est déterminée principale-

ment par la température de service du fluide.• La gamme de température ambiante permis:

–20°C jusqu’à +80°C.• Les vannes de la série 910.XXXX et 915.XXXX cor-

respondent à la série 710.XXXX et 715.XXXX et sont dis-ponibles dans les mêmes types.

710.00SITEC – Sieber Engineering AG, Aschbach 7CH-8124 Maur / Zürich, Switzerland www.sitec-hp.chTelefon +41 (0)44 982 20 70 Telefax +41 (0)44 982 20 79

Handventile – Hand valves – Vannes manuellesFeindosierventile – Micrometering valves – Vannes micrométriquesPneumatische Ventile – Air-operated valves – Vannes pneumatiques

120328_sitec_bl_710.00_8440_sitec_br 11.10.12 12:55 Seite 1