Overview

Brooks Instrument provides high-performance variable area flow meters tailored for Engineering, Procurement, and Construction (EPC) companies operating in oil, gas, chemical, and other industrial sectors. With over 70 years of global experience, Brooks offers reliable, accurate flow measurement solutions supported by extensive technical expertise and project-specific documentation.

Product Lines

Metal Tube Variable Area Flow Meters

Designed for demanding EPC projects requiring on-time delivery and cost efficiency, Brooks offers a broad range of metal tube flow meters, including the MT3750 and MT3809 series. These meters are engineered for tough oil and gas applications with features such as:

• Multiple process connection types: threaded (RcP, RcT, NPT) and flanged (ANSI, DIN, JIS, API)
• Options for high-alloy materials like Inconel 625, Hastelloy C, and Titanium
• Special configurations for extreme temperature and high-pressure applications (up to 1379 bar / 20,000 psig)

Glass Tube Variable Area Flow Meters

The GT1600 series is suitable for low-pressure or low-temperature industrial processes and laboratory environments. These glass tube meters provide visible float and flow scales, supporting a variety of liquids and gases with robust construction and configurable mounting options.

Key Features and Performance Specifications

MT3809 Series (Metal Tube)

• Temperature range: -198°C to 420°C (-325°F to 788°F)
• Pressure rating: up to 1379 bar (20,000 psig)
• Flow range: air up to 750 scfm (1200 m3n/hr), water up to 440 gpm (100,000 l/h)
• Accuracy: ±1%, ±2%, ±3%, ±5% full scale (FS)
• Supports SIL 2 alarm functions and multiple analog/digital I/O protocols (4-20 mA, HART 7, FOUNDATION Fieldbus)
• Meets ASME B31.3 standard

MT3750 Series (Metal Tube)

• Temperature range: -50°C to 204°C (-58°F to 400°F)
• Pressure rating: standard 100 bar (1500 psig), optional 276 bar (4000 psig)
• Flow range: air up to 110 scfh (3.1 m3n/hr), water up to 26 gpm (100 l/h)
• Accuracy: ±3%, ±5% FS
• Compact design with optional alarms, transmitters, and limit switch controllers

GT1600 Series (Glass Tube)

• Temperature range: 1°C to 121°C (33°F to 250°F)
• Pressure rating: up to 34.5 bar (500 psig)
• Flow range: air up to 150 scfm (270 m3n/h), water up to 21 gpm (4800 l/h)
• Accuracy: ±2%, ±5%, ±10% FS (optional ±1%)
• Features include 360° rotatable process connections, transparent scales, polycarbonate safety shields, and optional alarms and integral valves

International Approvals and Standards

Brooks flow meters comply with a wide range of international certifications and standards, ensuring suitability for diverse applications and environments. Key approvals include:

• ATEX, IECEx, NEPSI (explosion protection)
• CE (EMC, RoHS, PED)
• CSA, UL (safety certifications)
• CCOE, CRN, KOSHA, TR-CU (regional certifications)
• IP66/IP67, NEMA 4X (ingress protection)
• SIL-2 certified alarms
• NAMUR standards

Technical Documentation and Quality Assurance

Brooks Instrument supports EPC projects with comprehensive documentation including general arrangement drawings, certified dimensional drawings, welding documentation, sizing calculations, manufacturer data books, and inspection/test plans. Quality testing and certification options include:

• Material certificates (EN10204 type 2.2 or 3.1)
• NACE certificates (MR 0103 and MR 0175)
• Liquid dye penetrant and paint thickness tests
• International calibration certificates
• X-ray examination
• Positive Material Identification (PMI) including carbon content analysis

Project Approach

Brooks Instrument employs a structured project workflow to ensure timely delivery and high-quality products tailored to EPC requirements. The stages include:

• Order preparation
• Project documentation
• Manufacturing
• Inspection
• Packing and shipping
• Service and support

Global Service and Support

Brooks offers factory-certified service for repair and recalibration, maintaining product accuracy and longevity. Services use original metrology standards and expert technicians trained exclusively on Brooks products. A global network of service centers ensures fast turnaround times. Contact details for global headquarters and regional centers are provided for customer support.

Summary

Brooks Instrument delivers proven, reliable variable area flow meters optimized for EPC companies in challenging industrial environments. Their product range covers metal and glass tube technologies with extensive customization options, international certifications, and comprehensive project support. The company’s global service infrastructure and quality assurance processes further enhance product performance and customer satisfaction.