The KOBOLD BGF metal-armored variable area flow meter is ideal for difficult applications requiring high pressure, high temperature operation or low pressure loss. Its all-metal, armored design is available in stainless steel or PTFE-clad stainless steel. This rotameter is unique in that its design employs a guided float and spring return mechanism that allows the BGF to be installed into both horizontal and vertical pipes. In standard configuration, the flow meter is a purely mechanical meter suited for water and compressed gases in line sizes up to 3 inches. Electronic limit switches and/or an analog flow transmitter may be added if desired. Analog output is supplied standard with HART® protocol. Foundation Fieldbus® is also available as an option. Available switches and analog outputs include those that operate via intrinsically safe methods of protection and may be used in hazardous areas where intrinsically safe installations are permitted. Custom designs for high pressure operation, special fittings and special materials of construction are available upon request.

Application Guide Required for Product Specification

**This product requires completion of our Application Guide before specification and ordering.**

This product line offers multiple configuration options and technical specifications that must be precisely matched to/calibrated for your specific application requirements. Unlike standard configurable items, these products are engineered solutions that require detailed application information to ensure optimal performance.

The Process

Complete the Application Guide - Provide detailed information about your specific application
Technical Review - Our engineering team reviews your requirements
Product Specification - We specify the exact configuration for your needs
Quotation & Ordering - Receive your custom quote with precise part numbers

Important Notice

Unless this is a repeat order of a previously specified product with Kobold, we cannot accept orders or provide quotations without a completed Application Guide. Product numbers selected without proper application review may not meet your system requirements and could result in performance issues or compatibility problems.

Even if you believe you've identified the correct part number, the Application Guide process is required to verify compatibility and ensure a streamlined quote/order process.

Ready to get started?

The PDF Application Guide can be downloaded directly from this product page in the “Resource Tab” below and is also attached to the end of the product datasheet. Completed forms can be submitted to customerservice@koboldusa.com.

Need help filling it out? Contact our engineering team: call 412-788-2830 or schedule a free online engineering consultation at your convenience.