67C Series Emerson Rosemount PH Sensors Supply Regulators

Rosemount Inc., a renowned subsidiary of Emerson Electric Co., is a global leader in precision industrial measurement and automation instrumentation. Founded in 1956 and acquired by Emerson in 1976, it is headquartered in Shakopee, Minnesota, USA. The company specializes in designing and manufacturing highly reliable sensors and transmitters for measuring pressure, temperature, level, and flow, with its iconic 3051 Pressure Transmitter series being an industry benchmark. Its products are critical to operations in oil & gas, power, chemical, and other process industries worldwide, serving over 100 countries. Renowned for innovation, quality, and a strong customer focus, Rosemount provides essential solutions for process optimization, safety, and efficiency.

The ​Fisher 67C Series​ direct-operated regulators and filter regulators are engineered to deliver precise, stable, and clean reduced pressure to pneumatic and electropneumatic controllers, ​Rosemount series instruments, and other critical process devices. Ideal for air or gas applications, these robust units ensure optimal performance in demanding industrial environments.

​Key Features & Benefits​

• ​Compact and Rugged Design: Features a lightweight, corrosion-resistant aluminum body (epoxy-coated) with panel-mounting capability, making it suitable for space-constrained installations.

• ​Integrated Filtration (67CF/67CFR Models)​: Includes a built-in 5-micron filter to remove contaminants, ensuring a clean air supply for sensitive ​Rosemount series instruments​ and valve positioners.

• ​Internal Relief Valve (67CR/67CFR Models)​: Soft-seat internal relief provides overpressure protection by venting excess outlet pressure automatically. The ​Smart Bleed™​ feature (on specific models) incorporates an internal check valve to relieve pressure from the outlet if supply pressure is lost, enhancing system safety.

• ​Superior Regulation: Provides consistent downstream pressure control with excellent accuracy and repeatability, crucial for the reliable operation of ​Rosemount series instruments.

• ​Corrosion Resistance: Constructed with corrosion-resistant fasteners and available in stainless steel (67CS Series) for harsh environments.

• ​Wide Temperature Range: Compatible with various elastomers (NBR, FKM, VMQ) and offers arctic/extreme low-temperature construction options to operate in diverse climates.

​Technical Specifications​

​Typical Applications​

The Fisher 67C Series is ideally suited for providing reliable instrument air supply in various sectors:

• ​Instrument Air Supply Regulation: Ensuring stable, clean air for ​Rosemount series instruments, including pressure transmitters, analytical instruments, and pneumatic controllers.

• ​Pneumatic Control Systems: Supplying regulated pressure to valve actuators, I/P converters, and positioners.

• ​Industrial Processes: Oil & gas, power generation, chemical processing, water treatment, and pharmaceutical industries.

• ​Equipment Protection: Providing reduced pressures to air chucks, air jets, spray guns, and other pneumatic tools.

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Why Choose Fisher 67C Series for Your Rosemount Instruments?​​

• ​Proven Reliability & Precision: Fisher's legacy in fluid control ensures high accuracy and durability, providing a dependable air source that ​Rosemount series instruments​ require for optimal performance.

• ​Seamless Compatibility: Designed to integrate flawlessly with the broader Emerson ecosystem, including ​Rosemount series instruments, ensuring seamless communication and system-wide reliability.

• ​Configurable for Your Needs: Multiple model variations (standalone, with filter, with relief) allow you to select the perfect regulator for your specific application requirements.

• ​Global Support & Certification: Backed by Emerson's global service network and complies with international standards.

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