1. Manuals
  2. Brands
  3. Endress+Hauser Manuals
  4. Measuring Instruments
  5. Deltatop DP71B
  6. Technical information

Endress+Hauser Deltatop DP71B Technical Information

Differential pressure flow measurement with pitot tubes and deltabar differential pressure transmitter the universal measuring system for steam, gases and liquids
Hide thumbs Also See for Deltatop DP71B:
Table of Contents

Advertisement

Quick Links

Download this manual
Technical Information
Deltatop
DP71B, DP72B, DP73B
Differential pressure flow measurement with
Pitot tubes and Deltabar differential pressure transmitter
The universal measuring system for steam, gases and liquids
TI441P/00/EN/09.09
71102952
Application
• Flow measurement of gases, steam and liquids
• Nominal diameters from 2" to 21ft
• Nominal diameters from DN 50 to DN 6000
• Pressure up to 6300 psi (420 bar)
• NACE-compliant materials
Deltabar differential pressure transmitter
• Approvals for hazardous area:
FM, CSA, ATEX
• Relevant safety aspects: SIL
• Connection to all common process control systems:
HART, Foundation Fieldbus, Profibus
Your benefits
• Selectable according to the application:
– operational compact version: minimizes installation
costs
– modular remote version: for demanding process
conditions (high temperature, high pressure) and
difficult installation conditions
• Deltabar differential pressure transmitter ready
adjusted
• Display configured for flow rate, differential pressure
or 0 to 100%
• Robust design; no moving parts

Advertisement

Table of Contents
loading

Related Manuals for Endress+Hauser Deltatop DP71B

Summary of Contents for Endress+Hauser Deltatop DP71B

  • Page 1 Technical Information Deltatop DP71B, DP72B, DP73B Differential pressure flow measurement with Pitot tubes and Deltabar differential pressure transmitter The universal measuring system for steam, gases and liquids Application • Flow measurement of gases, steam and liquids • Nominal diameters from 2" to 21ft •...

  • Page 2: Table Of Contents

    Ordering information......29 Product structure Deltatop DP71B ..... . . 29 Product structure Deltatop DP72B .

  • Page 3: Function And System Design

    Deltatop DP71B, DP72B, DP73B Function and system design Measuring principle – – stat stat P01-DPxxx-15-00-00-xx-002 The front of the Pitot tube is exposed to the static pressure p plus the dynamic pressure p . The side and stat . The resulting differential pressure Δp can...

  • Page 4: Flow Calculation

    Deltatop DP71B, DP72B, DP73B Flow calculation According to the continuity law derived by Bernoulli and the energy equation, the static pressure in the flow plus the dynamic pressure is equal to a constant throughout the flow: = const. stat From this law, the following flow equations can be derived:...

  • Page 5: Sizing And Optimization

    Endress+Hauser will select the most suitable measuring cell based on the calculation results for the Pitot tube. The differential pressure transmitter will be delivered completely configured and preadjusted to the calculated values.

  • Page 6: Temperature And Pressure Compensation

    Deltatop DP71B, DP72B, DP73B Temperature and pressure Separate process connections Endress+Hauser Endress+Hauser RMC621 RMC621 compensation Two additional probes are required for temperature and pressure compensation: Dp T • An absolute pressure sensor This sensor must be mounted on the upstream side of the Pitot tube.
  • Page 7 Flow and Energy Manager RMS621 for water and steam from Endress+Hauser; for details see Technical Information TI092R • For all media: Universal Flow and Energy Manager RMC621 for gases, liquids and steam from Endress+Hauser; for details see Technical Information TI098R • For all media: by a PLC;...

  • Page 8: Split Range (Expansion Of The Measuring Range)

    If the differential pressure is high enough, it is possible to increase the range by connecting multiple differential pressure transmitters with different measuring ranges. The following Endress+Hauser devices can be used to evaluate the measuring signals simultaneously: • Flow and Energy Manager RMS621 for water and steam (see Technical Information TI092R) •...

  • Page 9: Flow Measurements In Liquids Or Steam

    Deltatop DP71B, DP72B, DP73B Flow measurements in liquids With liquid or steam applications, the transmitter must be mounted below the pipe. All impulse pipes must be or steam installed with a slope of at least 1:15 to the process connection - coming from the transmitter. This ensures that trapped air and bubbles rise back to the process pipe and thus do not influence the measurement.

  • Page 10: Mounting Positions

    Deltatop DP71B, DP72B, DP73B Mounting positions Versions Compact version With the compact version of the Deltatop, the Pitot tube, the manifold and the transmitter are delivered ready- mounted. Additional piping and additional valves are not required. Thus, leakage problems are eliminated.

  • Page 11: Liquid Or Steam Measurements

    Deltatop DP71B, DP72B, DP73B Liquid or steam measurements Compact; vertical Compact; horizontal Remote; vertical Remote; horizontal flow upwards mounting left DP7xB-EV... (liquid) DP7xB-EB... (liquid) DP7xB-GV... (steam) DP7xB-GB... (steam) upwards/downwards top/bottom DP7xB-DW... (liquid) DP7xB-DD... (liquid) DP7xB-FW... (steam) DP7xB-FD... (steam) P01-DP61Dxxx-11-00-00-xx-001 P01-DP61Dxxx-11-00-00-xx-009...

  • Page 12: Installation And Process Conditions

    Deltatop DP71B, DP72B, DP73B Installation and process conditions Upstream and downstream In order to ensure a homogeneous flow profile, it is necessary to mount the Pitot tube at a sufficient distance lengths to narrowings or bends in the pipe. The required upstream and downstream lengths for different types of...

  • Page 13: Temperature Limits Of The Materials Applied

    Deltatop DP71B, DP72B, DP73B Temperature limits of the ASME/AISI/ASTM materials applied Designation Short designation Material code Max. temperature Reference Steels C-Si A105 K03504 790 °F (425 °C) ASME B16.5 Heat-resistant steels C-1/2Mo A182 Gr. F1 K12822 860 °F (465°C) ASME B16.5 1 1/4Cr-1/2Mo-Si A 182 Gr.

  • Page 14: Ansi B16.5-2003

    Deltatop DP71B, DP72B, DP73B Pressure-temperature curves Cl. 2500 /Cl. 1500 for flanges according to ANSI B16.5-2003 P (bar) A105 /Cl.2500 A182Gr.F1 / Cl.2500 316L / Cl.2500 A105 / Cl.1500 A182Gr.F1 / Cl.1500 316L / Cl.1500 T (°C) P01-DOxxxxxx-05-xx-xx-xx-003 Cl. 900 / Cl. 600 P (bar) A105 /Cl.900...
  • Page 15 Deltatop DP71B, DP72B, DP73B Cl. 300 /Cl. 150 P (bar) A105 /Cl.300 A182Gr.F1 / Cl.300 316L / Cl.300 A105 / Cl.150 A182Gr.F1 / Cl.150 316L / Cl.150 T (°C) P01-DOxxxxxx-05-xx-xx-xx-001 Note! The values for 316L refer to the 0.2% yield strength.

  • Page 16: Mechanical Construction

    Deltatop DP71B, DP72B, DP73B Mechanical construction Probe profile Developed from aerospace technology, the Deltatop averaging Pitot flow sensor provides unsurpassed accuracy and reliability. With its solid one-piece construction and bullet shape, the Deltatop makes flow measurement clog-free and precise. The unique sensor shape reduces drag and flow-induced vibration. The location of the low pressure ports eliminates the potential for clogging, hence improving signal stability.
  • Page 17 Deltatop DP71B, DP72B, DP73B Process connection: "Pipe > spring lock" P01-DP6xBxxx-06-00-00-xx-002 1: Device head 2: Load plate 3: Load springs 4: Visual load indication 5: Packing follower 6: Packing body 7: Welding socket 8: Indication ring DP71B DP72B DP73B ANSI rating...
  • Page 18 Deltatop DP71B, DP72B, DP73B Process connection: "ANSI flange" P01-DP6xBxxx-06-00-00-xx-007 1: Device head 2: Sensor flange 3: Spiral wound gasket 4: Weld neck flange 5: Welding socket 6: Welding socket for end support 7: Weld cap for end support DP71B DP72B...
  • Page 19 Deltatop DP71B, DP72B, DP73B Process connection: "Spring lock + flange" P01-DP6xBxxx-06-00-00-xx-008 1: Device head 2: Load plate 3: Load springs 4: Packing follower 5: Safety spring lock packing body 6: Sensor flange 7: Spiral-wound gasket 8: Weld neck flange 9: Welding socket...
  • Page 20 Deltatop DP71B, DP72B, DP73B Process connection: "Flowtap + safety cable" P01-DP6xBxxx-06-00-00-xx-004 Device head and access valve orientation shown 90 degrees from actual orientation for clarity. 1: Device head 2: Retaining ring 3: Studs and nuts 4: Packing glands 5: Access valve...
  • Page 21 Deltatop DP71B, DP72B, DP73B Process connection: "Flowtap" (single drive/double drive) P01-DP6xBxxx-06-00-00-xx-003 Device head and access valve orientation shown 90 degrees from actual orientation for clarity. 1: Device head 2: Sensor plate 3: Packing gland 4: Anti-seize orbital bearing 5: Screw drive (threaded rod)
  • Page 22 Deltatop DP71B, DP72B, DP73B Process connection: "Flowtap + flange + safety cable" P01-DP6xBxxx-06-00-00-xx-006 Device head and access valve orientation shown 90 degrees from actual orientation for clarity. 1: Device head 2: Retaining ring 3: Studs and nuts 4: Packing gland...
  • Page 23 Deltatop DP71B, DP72B, DP73B Process connection: "Flowtap + flange" (single drive/double drive) P01-DP6xBxxx-06-00-00-xx-005 Device head and access valve orientation shown 90 degrees from actual orientation for clarity. 1: Device head 2: Sensor plate 3: Packing gland 4: Anti-seize orbital bearing...

  • Page 24: Process Connection, Mounting Nozzle

    Deltatop DP71B, DP72B, DP73B Process connection, mounting The features 40 ("Process connection") and 70 ("Welding socket") of the product structure must always be nozzle selected in a suitable combination: Process connection, mounting Pressure rating Feature 40 Feature 70 nozzle "Process connection"...

  • Page 25: Differential Pressure Connection

    Deltatop DP71B, DP72B, DP73B Differential pressure Differential pressure connection for the remote version (FNPT 1/2") connection For the remote version, the following connections are available for the impulse line between the individual components (remark: simple mounting; not suited for steam): P01-DP6xBxxx-04-00-00-xx-001 1: FNPT 1/2"...

  • Page 26: Integrated Temperature Sensor

    Deltatop DP71B, DP72B, DP73B Integrated temperature sensor P01-DOxxxxx-15-xx-xx-xx-009 • For Pitot tubes: – DP72B – DP73B • The resistance thermometer Pt100 is fixed within the probe profile. The protective tube which is formed by the two partition walls between the probe chambers protects it against damage. It is not in contact with the medium.

  • Page 27: Overview Of The Product Structures

    Deltatop DP71B, DP72B, DP73B Overview of the product structures Feature Name Description Valid for Primary element Application; Version • Application: "Gas", "Liquid" or "Steam" • Version: "remote" or "compact" See chapter "Mounting positions" (→ ä 10). Pipe; Orientation • Pipe: "Horizontal", "Vertical"...
  • Page 28 Deltatop DP71B, DP72B, DP73B Feature Name Description valid for Accessory: Condensate chamber on request 2x condens. chamber mat.; Defines: volume; PN • The material of the condensate chambers • The volume of the condensate chambers • The pressure rating of the condensate chambers Note! If "not selected"...

  • Page 29: Ordering Information

    Deltatop DP71B, DP72B, DP73B Ordering information Product structure Application; Version Deltatop DP71B Gas; remote Liquid; remote Steam; remote Special version, to be specified Pipe; Orientation Horizontal; top/bottom Vertical; upwards/downwards Special version, to be specified Process connection Tube Tube > cutting ring, Cl. 600, 316 Tube >...
  • Page 30 Deltatop DP71B, DP72B, DP73B Extension welding socket ... inch, 316 Not selected Special version, to be specified End support Carbon steel Carbon steel, high pressure > Cl.600 316, high pressure > Cl.600 Not selected Prepared for end support Special version, to be specified Diff.
  • Page 31 Deltatop DP71B, DP72B, DP73B Seal manifold; Screws Not needed PTFE; UNF7/16, max 420 bar Viton; UNF7/16, max 420 bar Graphite; UNF7/16, max 420 bar Special version, to be specified DP transmitter Deltabar Provided, sep. item Not provided Add. option Pitot tube (optional;...

  • Page 32: Product Structure Deltatop Dp72B

    Deltatop DP71B, DP72B, DP73B Product structure Application; Version Deltatop DP72B Gas; remote Gas; compact Liquid; remote Liquid; compact Steam; remote Steam; compact Special version, to be specified Pipe; Orientation Horizontal; left Horizontal; right Horizontal; top/bottom Vertical; downwards Vertical; upwards Vertical; upwards/downwards...
  • Page 33 Deltatop DP71B, DP72B, DP73B Welding socket Flowtap Flowtap Cl.150, steel + single spindle Flowtap Cl.150, 316 + single spindle Flowtap Cl.600, steel + double spindle Flowtap Cl.600, 316 + double spindle Flowtap Cl.150, steel + flange + single spindle Flowtap Cl.150, 316 + flange + single spindle Flowtap Cl.600, steel + flange + double spindle...
  • Page 34 Deltatop DP71B, DP72B, DP73B Material shut-off valve Special version, to be specified Inlet shut-off valve Not needed FNPT 1/2 Integral Special version, to be specified Outlet shut-off valve Not needed FNPT1/2 Special version, to be specified Manifold version Not selected...
  • Page 35 Deltatop DP71B, DP72B, DP73B Add. option manifold (optional; multiple options can be selected) Cleaned from oil+grease Oxygen service Add. option general (optional; multiple options can be selected) Pressure test + certificate Marking Tagging (TAG), see additional spec. Endress+Hauser...

  • Page 36: Product Structure Deltatop Dp73B

    Deltatop DP71B, DP72B, DP73B Product structure Application; Version Deltatop DP73B Gas; remote Gas; compact Liquid; remote Liquid; compact Steam; remote Steam; compact Special version, to be specified Pipe; Orientation Horizontal; left Horizontal; right Horizontal; top/bottom Vertical; downwards Vertical; upwards Vertical; upwards/downwards...
  • Page 37 Deltatop DP71B, DP72B, DP73B Welding socket Flowtap Flowtap Cl.150, steel + single spindle Flowtap Cl.150, 316 + single spindle Flowtap Cl.600, steel + double spindle Flowtap Cl.600, 316 + double spindle Flowtap Cl.150, steel + flange + single spindle Flowtap Cl.150, 316 +flange + single spindle Flowtap Cl.600, steel + flange + double spindle...
  • Page 38 Deltatop DP71B, DP72B, DP73B Material shut-off valve Special version, to be specified Inlet shut-off valve Not needed FNPT1/2 Integral Special version, to be specified Outlet shut-off valve Not needed FNPT1/2 Special version, to be specified Manifold version Not selected 3 valve, 316L, milled...
  • Page 39 Deltatop DP71B, DP72B, DP73B Add. option manifold (optional; multiple options can be selected) Cleaned from oil+grease Oxygen service Add. option general (optional; multiple options can be selected) Pressure test + certificate Marking Tagging (TAG), see additional spec. Endress+Hauser...

  • Page 40: Accessories

    Deltatop DP71B, DP72B, DP73B Accessories Overview The following accessories are available for differential-pressure flow measurement with Pitot tubes: • DA73V: Shut-off valves (→ ä 41) • DA74M: Manifold (→ ä 42) Shut-off valves and the manifold can be ordered together with the Pitot tube. They are contained in the product structures DP71B, DP72B and DP73B.

  • Page 41: Deltatop Da73V: Shut-Off Valve (Accessory)

    Deltatop DP71B, DP72B, DP73B Deltatop DA73V: shut-off valve (accessory) Version: valve Dimensions (DA73V-6...) 2.5 (63,5) inch (mm) P01-DPxxxxxx-06-xx-00-xx-047 Input FNPT1/2; output FNPT1/2 Weight Order code Weight DA73V-6*CC* Approx. 1.8 lbs (0.8 kg) Usage Universal valve; not suited for humid gases;...

  • Page 42: Deltatop Da73M: Manifold (Accessory)

    Deltatop DP71B, DP72B, DP73B Deltatop DA73M: manifold (accessory) Usage 3-valve manifold The manifold is used to connect the impulse pipes to the differential pressure transmitter. Valves 1 and 2 can be used to separate the transmitter from the impulse pipes.

  • Page 43: Version: 3-Valve, Manifold

    Deltatop DP71B, DP72B, DP73B Version: 3-valve, manifold 3.75 (95,3) 3.38 (85,7) 2.13 (54,1) 1.13 (28,7) 7/16-20 x 3/4 LG Ø0.28 (7,1) ½NPT 8.63 (219,2) inch (mm) 450 550 °C P01-DOxxxxxx-06-xx-00-xx-050 A: Process side; B: Transmitter side; C: PTFE gasket; D: Pure graphite gasket 1.0460; E: Pure graphite gasket 1.4404 Design •...

  • Page 44: Version: 5-Valve, Manifold

    Deltatop DP71B, DP72B, DP73B Version: 5-valve, manifold 7.18 (182,4) 3.38 (85,9) ½NPT 1 (25,4) 1.9 (48,3) 450 550°C inch (mm) 2.13 (54) P01-DOxxxxxx-06-xx-00-xx-048 A: Process side; B: Transmitter side; C: Vent D: PTFE gasket; E: Pure graphite gasket 1.0460; F: Pure graphite gasket 1.4404...

  • Page 45: Version: 3-Valve, Manifold, Iec61518, Both Sides

    Deltatop DP71B, DP72B, DP73B Version: 3-valve, manifold, IEC61518, both sides 2.13 (54) 3.38 (85,7) Ø0.28 (7,1) 450 550 °C 1.94 (49,3) 1.13 (28,7) 7.13 (181) inch (mm) P01-DOxxxxxx-06-xx-00-xx-049 A: Process side; B: Transmitter side; C: Purge valve; D: PTFE gasket; E: Pure graphite gasket 1.0450; F: Pure graphite gasket 1.4404...

  • Page 46: Version: 5-Valve, Manifold, Iec61518, Both Sides

    Deltatop DP71B, DP72B, DP73B Version: 5-valve, manifold, 8.18 (207,6) IEC61518, both sides 1.63 (41,3) 3.38 (85,9) ¼NPT 2.13 (54) 2.4 (61) 7/16-20 UNF-2B 450 550°C inch (mm) P01-DOxxxxxx-06-xx-00-xx-051 A: Process side; B: Transmitter side; C: Vent; D: PTFE gasket; E: Pure graphite gasket 1.0460; F: Pure graphite gasket 1.4404...

  • Page 47: Product Structure Da73M

    Deltatop DP71B, DP72B, DP73B Product structure DA73M Version 3 valve, 316L, milled 5 valve, 316L, milled, vent 3 valve, 316L, IEC51528, both side 5 valve, 316L, IEC61518, both sides, vent Special version, to be specified Gasket PTFE, 200°C / 392°F...

  • Page 48: Purge Unit

    Deltatop DP71B, DP72B, DP73B Purge unit Usage With flow measurements of waste gases or soiled air, solid particles often settle at the profile of the Pitot tube and, depending on the degree of soiling, reduce the measuring accuracy or even interfere with the functionality of the Pitot tube.

  • Page 49: Sizing Sheet - Data Sheet

    Deltatop DP71B, DP72B, DP73B Sizing sheet - data sheet Sizing Sheet - data sheet / Pitot Tube Sheet 1/2 Fields marked with * are mandatory to be filled-in Project: Customer: Project-No.: Contact partner: Order Code Order code Order no.* Position(s) *...
  • Page 50 Deltatop DP71B, DP72B, DP73B FLOWDATA4_en Endress+Hauser...

  • Page 51: Instructions For Completing The Sizing Sheet - Data Sheet

    • The "Sizing sheet - data sheet" can be filled in and printed using the Endress+Hauser Applicator sizing software. All required data can be entered or are available in the database.
  • Page 52 Endress+Hauser Applicator sizing tool provides users with a large medium database with all the necessary fluid properties for a wide variety of fluids.
  • Page 53 A suitable mounting position in accordance with the situation on site can be chosen by marking the check box below the pictogram. The mounting position selected has to match the order code. Endress+Hauser will check if any features in the order code mutually exclude one another. A: Mandatory for differential pressure calculation;...
  • Page 54 Deltatop DP71B, DP72B, DP73B Endress+Hauser...
  • Page 55 Deltatop DP71B, DP72B, DP73B Endress+Hauser...
  • Page 56 Instruments International Endress+Hauser Instruments International AG Kaegenstrasse 2 4153 Reinach Switzerland Tel. +41 61 715 81 00 Fax +41 61 715 25 00 www.endress.com info@ii.endress.com TI441P/00/EN/09.09 71102952 CCS/FM+SGML 6.0 71102952...

This manual is also suitable for:

Deltatop dp73bDeltatop dp72b

Table of Contents