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Air Flow Products Catalog

Air Flow Products Catalog
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Air Flow Products Catalog

Product catalog summary
Facilities and Capabilities
Eastern Instruments operates a 26,000 sq. ft. facility in Wilmington, NC, equipped with engineering, laboratory, testing, and assembly areas. The facility includes a test chamber with NIST-referenced nozzles for validating High Beta® and VAP3® pitot array performance.
Company Overview
Founded in 1984, Eastern Instruments is a Certified Women’s Business Enterprise specializing in engineered-to-order air flow measurement and control systems, designed for high accuracy and ease of use.
Product Overview
The VAP3®/SA is designed for clean air applications, offering superior accuracy. The VAP3®/PA is suitable for particulate-laden environments, featuring a plug-resistant design. The High Beta® is a flow-conditioning device that minimizes pressure loss, ideal for installations with limited duct runs.
Engineering Solutions
Eastern Instruments provides comprehensive engineering services, including CFD modeling, thermo-fluid analysis, and process modeling. Solutions include heated VAP3® Pitots and High Beta® flow-conditioning devices for large ducts.
Air Flow Measurement
Accurate air flow measurement is crucial for plant efficiency. Eastern Instruments' VAP3® Pitots and High Beta® devices offer reliable and cost-effective solutions to common measurement challenges.
Applications
The VAP3® Series is used in process and power plant applications, while the High Beta® is suitable for environments with insufficient straight duct runs. Both systems provide accurate and repeatable air flow measurements.
Specifications and Installation
The document details specifications for the VAP3® and High Beta® systems, including installation requirements for upstream and downstream mounting, remote electronics packages, and line-mounted purge systems.
Product Features and Benefits
  • Superior Accuracy: No K Factor required, not dependent on Reynolds number.
  • Particulate-laden Applications: Plug-resistant design with no impact ports.
  • Parallel Plate Design: Minimizes turbulence and prevents particulate build-up.
  • Multiple Differential Pressure-Sensing Ports: Ensures velocity averaging throughout the duct.
  • High Temperature Range: Suitable for a broad process range.
  • Custom Solutions: Options for heated pitots and high velocities.
High Beta® Flow Conditioners
Designed to eliminate turbulent, reverse, and cyclonic flow patterns, ensuring accurate air flow measurement. Suitable for installations with minimal straight duct runs.
Installation Guidelines
Guidelines are provided for determining upstream and downstream mounting requirements to ensure optimal performance and compliance with ASTM standards.
Additional Specifications
  • Mounting Options: Various mounts for temperature sensors, differential pressure transmitters, and gauges.
  • Enclosure Types: Options include white painted carbon steel, 304 stainless steel, and custom-engineered enclosures.
  • Input Power Supply: Options range from none (requiring 24 Vdc) to various AC and DC inputs.
  • Differential Pressure Transmitter Range: Multiple ranges available, with custom options.
  • Auxiliary Inputs and Outputs: Include temperature and absolute pressure inputs, and flow rate outputs.
  • Relay Options: High/low alarms based on flow rate or temperature, with custom options available.
Product Descriptions
  • DPG (Differential Pressure Gauge): Provides reliable flow measurement with a differential pressure gauge manifolded within an industrial enclosure.
  • DPS (Differential Pressure System): A microprocessor-based flow transmitter providing density-compensated output signals.
  • DPU (Differential Pressure Unit): Offers accurate flow measurement with optional display and analog output signals.
Additional Options
  • Line Mounted Purge (LMP): A continuous purge system for VAP3® Pitots.
  • VAP3® Insertion Port (VIP): Used for mounting VAP3® Pitots to ducts.
  • Remote Temperature Sensor (RTS): A device for remote temperature measurement, compatible with DPS flow transmitters.
Product Number Determination
Instructions are provided for determining product numbers based on selected options, ensuring customization to specific requirements.
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Catalog excerpts

Air Flow Products Catalog-1

Precision Flow Air Flow Products Catalog

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Air Flow Products Catalog-3

Our Facilities: Measuring Up to the Highest Standards To help us achieve – and set – the highest standard of air ow measurement, Eastern Instruments maintains 26,000 sq. ft. of engineering, laboratory, testing, and assembly area in two Wilmington locations. There are two stand-alone laboratory sites, one of which is a test facility with an air ow test chamber with *NIST referenced nozzles. Within the main building, which houses the general ofces and engineering organization, are a fully supported machine shop, fabrication services, electronics assembly, and testing department. High Beta® devices...

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Air Flow Products Catalog-4

Precision Flow Measurement Welcome to Eastern Instruments About the VAP3®/SA A proprietary design for relatively clean air applications and for Superior Accuracy (SA), the VAP3®/SA air ow measurement pitots are ideal for either new or retrot process applications. When inserted in air ow ducts, the VAP3®/SA provides an accurate, differential pressure output allowing for precise air ow measurement and control of your process to as low as ±0.50% when calibrated. The VAP3®/SA pitots can also be incorporated within ow-conditioning devices, such as the High Beta®, designed for short duct run applications...

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Air Flow Products Catalog-5

Engineered Solutions Engineering is the heart of Eastern Instruments. From its beginning as a consulting rm to producing today’s full-scale systems, EI has built a solid reputation solving complex air ow problems for customers in the process and power generation industries. Our VAP3® Pitots and High Beta® ow conditioners, whether installed as a device or part of an EI-built process system, reect our dedication to providing the bestengineered products possible for the customer’s application to improve measurement accuracy and process performance. Engineering services include: • Computational Fluid...

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Air Flow Products Catalog-6

Measuring air ow is easy. Measuring it accurately is another story. Environments where air ow measurement that is not repeatable, accurate, or representative of mass ow will destabilize the air ow control loop. The growing trend to improve plant efciency in today’s process and power generation makes accurate air ow measurement crucial. Eastern Instruments’ proprietarydesigned VAP3® Pitots and High Beta® owconditioning device combat the primary causes of inaccurate air ow measurement and provide accurate and reliable measurement solutions. Why choose pitot measurement technology by Eastern Instruments?...

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Air Flow Products Catalog-7

That’s where Eastern Instruments’ technology excels. can severely impact ow measurement because mass calculations inferred by velocity depend on constant duct cross-sectional area. The High Beta® creates a rigid, non-moving cross-sectional area of duct with an integrated ow proling design. Detail of VAP3® Pitots installed in a High Beta® ow conditioner High Beta®: Insufcient straight runs? Not a problem Typical ow measurement devices require sufcient upstream and downstream duct runs for accurate measurement. In most applications, there are rarely sufcient straight runs to permit accurate measurements....

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Air Flow Products Catalog-8

How can air ow measurement systems from EI help me? Eastern Instruments offers a complete line of air and gas ow measurement systems based on more than 35 years of pitot development and product improvements. Our technical director, Bob Brandt, is widely regarded as a rst-rank expert on the subject of air ow measurement and pitot tube design. Whether you need to increase boiler efciency or obtain an optimized uidized velocity for a uid bed dryer, rest assured that Eastern Instruments can provide you with a system that will t your needs. VAP3® Series Applications Process Applications Power Plant...

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Air Flow Products Catalog-9

The VAP3® Series: Velocity Averaging Parallel Plate Pitots VAP3® Pitots have a unique Velocity Averaging and Parallel Plate proprietary design. When inserted in air ow ducts, the VAP3® Pitots provide an accurate, differential pressure output allowing for precise air ow measurement or control of your process. VAP3® Pitots are designed for Superior Accuracy (SA) for clean air applications or plug resistant (PA) for heavy particulate-laden applications. The VAP3® Pitots can be installed in existing or new ducts or incorporated into ow-conditioning devices, such as the High Beta®, designed for short...

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Air Flow Products Catalog-10

VAP3® SERIES SPECS PRESSURE HOLES VAP3® Pitots Circular Duct Installation (front view) DIM Probe Sizes 4 - 20 Over 20 A 4.25 in 6.25 in B 4.95 in 2.95 in VAP3® Pitots Circular Duct Installation (isometric view) 10 Air Flow Products Precision Flow Measurement

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Air Flow Products Catalog-11

VAP3® SPECS, CONT. Air Flow Products Precision Flow Measurement 1 1

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Air Flow Products Catalog-12

DETERMINING PRODUCT NUMBER D1 D2 To determine your product number, simply note the option you need from each section below, and place that code in its corresponding box in the grid. For instance, if you have a clean-air application VAP3® for a round duct conguration, then ll in boxes D1 and D3 with the codes SA and RD, respectively. Complete the grid by continuing that pattern for each option. D3 D4 D5 D6 D7 FSO D1 Pitot Orientation D5 Pitot Mounting Plate SA Standard Application 425 PA Particulate Application D2 Probe Size 4.25” wide Mounting Plate, 1/4” thick, Anodized Aluminum, 15 PSI Rated...

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Air Flow Products Catalog-13

PRODUCT NUMBERS: DSV – DUCT SECTION VAP3® D1 D2 D3 D4 D5 D6 D7 D8 D1 Element Size D3 Mat’l of Construction D6 Gaskets C6-C22 Circular: 6, 8, 10, 12, 14, 16, 18, 20, 22-inch nominal duct size; 12-inch overall length 304 WS FDA Approved White Silicone 316 AL CS 304 Stainless Steel Duct Section 316 SS Duct Section 6061 Alumin. Duct Section Carbon Steel Duct Section GR Graphite SW Spiral Wound EO D4 Mounting Flange Engineered-to-Order/ Custom (see D2 for Pressure Rating) D7 VAP3® Conguration Low Pressure: 0.125” thick Angle Ring Flange STD Angle Ring Pattern Low Pressure: 0.250” thick Plate Flange;...

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