Spirax-Sarco 55222 Pressure Regulator
The Spirax Sarco 25 Series is the industry standard for versatile and reliable steam pressure regulation. This Spirax-Sarco 55222 1/2" NPT pilot-operated pressure regulator is engineered for high-accuracy control in demanding industrial steam applications. As a Main Valve (Main Vl) assembly, it serves as the foundation for the modular 25-Series system, where it can be configured for pressure, temperature, or electric-pneumatic control depending on the pilot selection. The diaphragm-actuated design ensures rapid response to load changes, maintaining stable downstream pressure even during fluctuating boiler output. Built with a durable cast iron body and stainless steel internals, this steam pressure reducing valve is rated for saturated steam service and provides a tight shut-off to prevent pressure creep during dead-end conditions. For contractors performing HVAC steam system maintenance, this unit offers a field-proven solution for reducing high-pressure header steam to usable process pressures with minimal offset and high turndown ratios.
Key Benefits
- Modular Versatility: The 25-Series diaphragm head accommodates various pilots for customized pressure reducing valve configurations.
- Durable Construction: Heavy-duty iron body and stainless steel valve seats resist erosion and wire-drawing in high-velocity steam lines.
- High Accuracy: Pilot-operated design provides much closer control than direct-acting valves, essential for sensitive heat exchangers.
- Serviceability: Diaphragms and internal valve components can be inspected or replaced without removing the valve body from the piping.
- Stable Operation: Effectively handles high pressure drops while minimizing turbulence and noise within the steam distribution system.
Common Questions
What is the maximum inlet pressure for the Spirax Sarco 55222?
The 25-series cast iron main valves are typically rated for 250 psig at 450°F, though the specific operating range depends on the installed pilot and diaphragm color coding.
Can this valve be used for water or air service?
While primarily used for steam, the 25-series can be adapted for other fluids; however, it is specifically optimized for saturated steam applications to ensure long-term seat tightess.
Is the pilot included with the 25-Series Main Valve?
The 55222 is the main valve assembly. Pilots (such as the PP pressure pilot) must be selected based on your specific set point requirements and are usually sold separately or as part of a complete kit.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $1,309.29
-65%$1,309.29
$458.25Spirax-Sarco 55222 Pressure Regulator
The Spirax Sarco 25 Series is the industry standard for versatile and reliable steam pressure regulation. This Spirax-Sarco 55222 1/2" NPT pilot-operated pressure regulator is engineered for high-accuracy control in demanding industrial steam applications. As a Main Valve (Main Vl) assembly, it serves as the foundation for the modular 25-Series system, where it can be configured for pressure, temperature, or electric-pneumatic control depending on the pilot selection. The diaphragm-actuated design ensures rapid response to load changes, maintaining stable downstream pressure even during fluctuating boiler output. Built with a durable cast iron body and stainless steel internals, this steam pressure reducing valve is rated for saturated steam service and provides a tight shut-off to prevent pressure creep during dead-end conditions. For contractors performing HVAC steam system maintenance, this unit offers a field-proven solution for reducing high-pressure header steam to usable process pressures with minimal offset and high turndown ratios.
Key Benefits
- Modular Versatility: The 25-Series diaphragm head accommodates various pilots for customized pressure reducing valve configurations.
- Durable Construction: Heavy-duty iron body and stainless steel valve seats resist erosion and wire-drawing in high-velocity steam lines.
- High Accuracy: Pilot-operated design provides much closer control than direct-acting valves, essential for sensitive heat exchangers.
- Serviceability: Diaphragms and internal valve components can be inspected or replaced without removing the valve body from the piping.
- Stable Operation: Effectively handles high pressure drops while minimizing turbulence and noise within the steam distribution system.
Common Questions
What is the maximum inlet pressure for the Spirax Sarco 55222?
The 25-series cast iron main valves are typically rated for 250 psig at 450°F, though the specific operating range depends on the installed pilot and diaphragm color coding.
Can this valve be used for water or air service?
While primarily used for steam, the 25-series can be adapted for other fluids; however, it is specifically optimized for saturated steam applications to ensure long-term seat tightess.
Is the pilot included with the 25-Series Main Valve?
The 55222 is the main valve assembly. Pilots (such as the PP pressure pilot) must be selected based on your specific set point requirements and are usually sold separately or as part of a complete kit.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
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Description
The Spirax Sarco 25 Series is the industry standard for versatile and reliable steam pressure regulation. This Spirax-Sarco 55222 1/2" NPT pilot-operated pressure regulator is engineered for high-accuracy control in demanding industrial steam applications. As a Main Valve (Main Vl) assembly, it serves as the foundation for the modular 25-Series system, where it can be configured for pressure, temperature, or electric-pneumatic control depending on the pilot selection. The diaphragm-actuated design ensures rapid response to load changes, maintaining stable downstream pressure even during fluctuating boiler output. Built with a durable cast iron body and stainless steel internals, this steam pressure reducing valve is rated for saturated steam service and provides a tight shut-off to prevent pressure creep during dead-end conditions. For contractors performing HVAC steam system maintenance, this unit offers a field-proven solution for reducing high-pressure header steam to usable process pressures with minimal offset and high turndown ratios.
Key Benefits
- Modular Versatility: The 25-Series diaphragm head accommodates various pilots for customized pressure reducing valve configurations.
- Durable Construction: Heavy-duty iron body and stainless steel valve seats resist erosion and wire-drawing in high-velocity steam lines.
- High Accuracy: Pilot-operated design provides much closer control than direct-acting valves, essential for sensitive heat exchangers.
- Serviceability: Diaphragms and internal valve components can be inspected or replaced without removing the valve body from the piping.
- Stable Operation: Effectively handles high pressure drops while minimizing turbulence and noise within the steam distribution system.
Common Questions
What is the maximum inlet pressure for the Spirax Sarco 55222?
The 25-series cast iron main valves are typically rated for 250 psig at 450°F, though the specific operating range depends on the installed pilot and diaphragm color coding.
Can this valve be used for water or air service?
While primarily used for steam, the 25-series can be adapted for other fluids; however, it is specifically optimized for saturated steam applications to ensure long-term seat tightess.
Is the pilot included with the 25-Series Main Valve?
The 55222 is the main valve assembly. Pilots (such as the PP pressure pilot) must be selected based on your specific set point requirements and are usually sold separately or as part of a complete kit.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
