BLS 100 Orifice Plate DIN 19206

Transcription

1 E Orifice Plate, Orifice Flange, Meterrun, Restriction Orifice Application Flow rate measurement of aggressive an nonaggressive meia particularly for large pipelines. Construction Orifice plate with wele-on hanle/spae for irect installation between flanges with smooth sealing faces. Available as a sharp ege, roune or quarter circle nozzle accoring to appropriate conitions of use. ifferential-pressure Measurement Normally taken through the flange blae or in the pipeline at istances a1 an a2 from the orifice. There is a ifferentiation between pressure taps as flange taps accoring to IN (figure 1) an -/2- pressure tapping within the pipe (figure 2) whereas a1 is equivalent to the pipe iameter an a2 is ientical with /2. In special cases the pressure tapping may occur norm-like as corner tapping in the flange (figure 3). + - B 100 Orifice Plate IN a 1 a 2 a 1 a 2 1 ealing surface type The installation takes place between flange an orifice flange. The types of sealing are smooth (IN part 1), nose- an tongue (IN part 2) an lens (IN part 3). Accoring to API- an ANI-regulations as smooth make an as ring-joint-gasket (RTJ). Materials The table to the right shows the most usual materials for the orifices. The given temperatures are guiing ata. When selecting the material special consieration has to be taken for aggressive materials. Other special materials are available. Material Certificates Material certificates i.e. accoring to EN can be supplie for the use materials. 2 3 Category Abbreviation W.No. Application C Unalloye (plain) steel 235 JR (t37-2) P 265 GH (HII) Corrosionproof an aci resisting X6CrNiTi 1810 X6CrNiMoTi steels Heat resistant steels X10 CrAI up to +800 High corrosionproof alloys Hastelloy B Hastelloy C Titanium Monel up to Accessories Flanges, seals an pressure taps are not inclue in the stanar scope of elivery for the orifice plate but may be orere separately. For shut-off valves, conensate pots an manifols please refer to etaile ata sheets. OCH MEAPPARATE Wiener tr Berlin Tel. (030) FAX (030)

2 4 E Technical etails: Nominal Pressure: Nominal iameter: Outer iameter 4: Bore iameter : PN 1 up to PN 100 for sealing-type: smooth PN 10 up to PN 100 for sealing-type: nose an tongue PN 64 up to PN 400 for sealing-type: lense N 50 up to N 2000 for sealing-type: smooth N 10 up to N 400 for sealing-type: nose an tongue, lense The outer iameter of smooth orifice plates is a result -accoring to IN- of the bolt circle iameter of the pipe flange minus whole bolt circle. For other esigns an regulations see appropriate respectives. The calculation of the bore iameter will be one by us from the supplie ata consiering the relevant stanars an regulations an is part of the scope of eliveries Pressure oss: The remaining pressure loss epens on nozzle opening ratio : approx % of ifferential pressure an is part of the ata-sheet. If smaller pressure losses are necessary you have to use venturi tubes Ientification: esigns: On inlet sie of hanle: +, Tag-No., PN,, an material They epen on nominal size, meia an the require sealing-type. Normal configuration is the orifice plate (figure 1). A special configuration is the reucer orifice plate (figure 2). It serves mainly in small pipes for pressure-reuction an for flow-limitation. The quarter circle nozzle (figure 3) is assigne for use with small Reynol s figures. Orifice with nose, lense-sealing an ring-joint-sealing (figures 4-6) show you the possible sealing-types. Quarter circle nozzles accoring to VI/VE 2041 for special requirements are available for elivery. b + Nr. PN Mat l imensions: The lengths for installation s an the imensions of the hanle epen on the nominal size an are part of the regulations of IN part 1-3 an of the ANI-regulations. OCH MEAPPARATE Wiener tr Berlin Tel. (030) FAX (030)

3 E Construction strengths "s": The installation lengths "s" as well as the imensions grab hanle follows nominal with specifications an are efine in IN section 1-3 as well as in the ANI stanars The following table is taken from IN section 1an show our stanar esign imensions respectively. N IN Constructi on strengths "s": mm N ANI Constructi on strengths "s": mm " ,5" " " " " " " " " " " " " x 22" " x 26" " " " x 34" " x 38" " 12 x = not stanarize in the IN stanar (N 50 conforme to general vali practices) Construction strengths are lai out for a pressure ifference of a max. of 1000 mbar OCH MEAPPARATE Wiener tr Berlin Tel. (030) FAX (030)

4 E P-Flow Element with Flange Pressure Tapping Accoring to IN Application: Construction: Materials: For flow measurements for gases, steams an fluis in pipes for nominal sizes from 50 up to 500 (sealing-type: smooth) an for nominal sizes from 10 up to 400 (sealing-type: nose an tongue, lense) Orifice plate accoring to IN completely mounte incluing pipe flanges, screws an sealings an P-flow element extraction outlet (as inicate on form A6). For technical etails of these orifices please refer to those from sheet The flanges an screws are the same as those from the pipe. For the materials of the orifices please refer to the table on sheet 91.1 imensional ketches Orifice flange with orifice plate ealing-type: smooth Pressure-tap wele Meter runs for weling in esign E with orifice ealing-type: tongue Pressure-tap wele Optional with joint flanges esign F The sealing faces of joint flanges o not have to match with profile of measuring flange OCH MEAPPARATE Wiener tr Berlin Tel. (030) FAX (030)

5 E P-Flow Element with Flange Pressure Tapping Accoring to ANI B Application: Construction: Materials: For flow measurements for gases, steams an fluis in pipes accoring to ANI-regulations. For nominal sizes from 1 up to 24 an pressure stages from 300 lbs up to 2500 lbs. pecial sizes on inquiry. Orifice plates completely mounte with orifice flanges, screws, gaskets, jackscrews an locking plugs. Accoring to ATM-stanars. imensional ketches 1/2"NPT Orifice flange with orifice plate, sealing-type smooth (RF) In every flange there are two outlet-bores (place offset of 180 ) an a jackscrew aligne corresponingly. pecial esigns, i.e. other angle positions of the pressure taps an screwe-in pressure taps are possible. 1/2"NPT Orifice flange with orifice plate, sealing-type ring-joint-sealing (RTJ) As a normal esign the sealing is oval, for special requirements it may also be carrie out octagonal. In all cases the pipe iameter has to be given from customer. OCH MEAPPARATE Wiener tr Berlin Tel. (030) FAX (030)

6 E B 100 R Restriction Orifice Application Restrictors are use where a efine pressure loss in processing is require or in blow out piping. In special cases an application is also possible in flow rate limitation. Restrictors are useable for all meia Construction Restrictors can be use as simple isolating plates with an attache gripper plate for inserting between the conuit flanges with ifferent surface thicknesses or as an wel variation. The bore is finishe as a basic cylinrical. This also can be eccentrically arrange for special applications. Multi-hole apertures an multi-level restrictors are then use when acoustic pressure limits are require. Calculation The calculation of the restrictor aperture is base on the IO If requeste the soun pressure (BA) can be calculate. eal types The installation occurs between flanges corresponing to IN or ANI with ifferent forms of surface thickness (flat / groove / spring / projection / back crack / ring joint (RTJ)). With wel variations the connection is aapte to the existing piping. Construction strengths The construction strengths of the restrictor apertures are calculate from the nominal with, the material, the pressure loss an the working temperature. The calculation of the construction strength is accoring to the vali A leaflets an tables. An example curve is shown. Materials: The materials use can be taken from the table on Page 1. Material testing Certificates regaring material e.g., accoring to EN or 3.2 are elivere upon request OCH MEAPPARATE Wiener tr Berlin Tel. (030) FAX (030)