The Role of Steam Pressure Reducing Valves
Enabling Efficiency in Your Steam System
Steam PRVs reduce pressure from high-pressure distribution lines to the lower levels required at points of use, providing automated pressure control without the need for external power. With over 80 years of industry experience, Fisher™ Steam PRVs are trusted to deliver accurate, reliable control for both wet and dry steam—improving efficiency, protecting equipment, and driving cost savings. Proper PRV sizing considers inlet and outlet pressure, flow rate, temperature, and steam quality/dryness—the proportion of vapor to liquid in the steam. Best practices include incorporating a bypass line for maintenance, isolation valves for safety, and steam traps to remove condensate and extend system life.
Learn How Steam Pressure Reducing Valves Work
Controlling Pressure for Safe Steam Delivery
Steam PRVs automatically regulate downstream pressure without external power. They balance spring force and steam pressure to satisfy flow demand downstream at a desired setpoint. Used in direct-acting or pilot-operated designs, they’re one part of a full system ensuring safe, efficient steam control.
Steam PRV Training Video
Learn How Steam PRV work
Learn from the steam pressure control experts. With over 80 years of experience, our team of SMEs walks you through how Steam PRVs work and why they matter. This free online training video explains key principles, components, and real-world operation to help you apply PRV with confidence.
Fisher™ Steam PRV Application Map
Understanding Applications in a Steam Loop
Explore our diverse set of PRV applications across the entire steam loop—from boiler outlets to steam headers, separators, desuperheaters, distribution lines, heat exchangers, and deaerators. See how our solutions optimize pressure control at every key point in your steam system.
Fisher™ 92B Steam PRV 2D Animation
Visualizing a Steam PRV in action
Watch our 2D animation to see the PRV in action—how it operates, responds to changing conditions, and controls steam pressure with precision. This visual tool helps you better understand internal components, flow paths, and key functions within real-world steam system scenarios.
Fisher™ Steam PRV 2D/3D Drawings
Designing & Planning Your Installations
Access our free drawings to gather critical clearance dimensions and CAD files to simplify your skid design and layout planning. Our detailed product files support faster engineering workflows and ensure a perfect fit in your steam system builds or retrofits.
Steam Pressure Reducing Valves Services & Consulting
Empowering You With Expert Insight and Support
Our world-class training hub offers comprehensive resources and expert-led courses designed to deepen your knowledge of steam PRVs. From detailed manuals to interactive webinars, we provide the tools and support you need to optimize system performance and ensure safe, efficient steam pressure control.
