Company Overview and Contact Information
Dwyer Instruments, Inc. is a manufacturer specializing in flow instrumentation, including flow switches and transmitters. The company operates globally with headquarters in Michigan City, Indiana, USA, and branch offices in the United Kingdom, Australia, and Houston, Texas. Multiple contact channels are provided including phone, fax, email, and websites for general inquiries, technical support, literature requests, and quotes.

Product Range and Applications
Dwyer Instruments, along with its subdivision W. E. Anderson, offers a broad range of flow sensing solutions suitable for applications from high-volume OEM to heavy industrial use. Their product portfolio includes paddle style flow switches, globe style thermal indicating switches, paddle wheel/turbine switches, piston style flow transmitters, and various other flow measurement devices.

Key Product Features and Technologies
- Magnetic Actuated Paddle Flow Switches: W. E. Anderson’s paddle switches use magnetic actuation to eliminate wearing bellows and seals, reducing leak risks.
- Material Options: Wetted materials include brass, stainless steel (various grades), Inconel®, ceramic, PPS, polysulfone, and specialty elastomers such as Buna-N and fluoroelastomer.
- Temperature and Pressure Ratings: Products cover a wide range of operating temperatures (from -40°F to 6000 psig pressure limits) and pressures suitable for gases and liquids.
- Switch Types and Outputs: Various switch types are available including SPST, SPDT, DPDT, PNP NO/NC, and outputs such as 4-20 mA, pulsed, and voltage signals.
- Adjustability and Power Requirements: Many models feature adjustable set points and operate on power supplies ranging from none (mechanical) to 24 VDC or 110 VAC.

Product Specifications Summary
The brochure provides detailed specifications for numerous series, including:
- Flow ranges from as low as 0.03 GPM to over 2400 GPM.
- Temperature limits from -40°F up to 400°F and beyond.
- Pressure limits from 50 psig to 6000 psig depending on model.
- Process connections primarily include NPT threads in various sizes.
- Agency approvals and enclosure ratings vary by product, with options for weatherproof (WP), explosion-proof (EXP), and general purpose (GP) enclosures.

Additional Resources and Catalogs
Dwyer Instruments offers free access to their latest catalogs covering complete product lines, engineering and applications handbooks, and specialized catalogs for Mercoid, Building Automation Systems, Love Controls, Proximity Controls, and Industrial Gages.

Brand and Trademark Notes
- Inconel® is a registered trademark of Huntington Alloys Corporation.
- Alnico® is a registered trademark of Master Magnetics, Inc.

Summary and Customer Value Proposition
Dwyer Instruments emphasizes quality, innovation, and competitive pricing. Their magnetic paddle flow switches are highlighted for durability and leak prevention. The company encourages customers to evaluate their products for value and performance, positioning themselves as a cost-effective solution provider in the flow instrumentation market.