54681 Spirax Sarco Regulator
$5,598.50
54681 Spirax Sarco Regulator 3 in. 25 ANSI 125 Flange Regulator CAST IRON
Overview
The Spirax Sarco 54681 is a precision pressure regulator built for steam and gas service. It belongs to Spirax’s high-performance regulator lineup, delivering stable downstream pressure control under varying load conditions. With robust construction and modular pilot design, the 54681 is suitable for demanding industrial environments.
Features
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Self-actuated pressure regulation for steam or gas service
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Balanced valve design to reduce seat friction
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Modular pilot section, allowing field changes or maintenance
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Adjustable control spring ranges for varied outlet pressure setpoints
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Cast body construction with durable internal trim
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Low-leakage shutoff to prevent overpressure
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Horizontal installation preferred for stability
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Easy maintenance access via top cover
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Designed for industrial use in boiler and process systems
Specifications
| Specification | Details |
|---|---|
| Model | 54681 |
| Type | Self-actuated pressure regulator |
| Media | Steam or gas |
| Body Material | Cast construction |
| Valve Design | Balanced poppet / balanced seat |
| Maximum Operating Pressure | Up to moderate industrial steam / gas limits (specific value in manufacturer datasheet) |
| Outlet Range Options | Multiple pilot spring ranges available |
| Shutoff Class | Low leakage shutoff |
| Mounting | Horizontal orientation preferred |
| Trim Material | Stainless and alloy materials suitable for steam/gas environment |
| Adjustment | External adjusting screw / control spring |
| Service | Top-access for internal parts replacement |
| Typical Applications | Steam pressure control, gas regulation, burner station pressure control |
Applications
The Spirax Sarco 54681 regulator is used in systems requiring precise downstream pressure control, such as:
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Main steam distribution regulation
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Protecting downstream equipment from overpressure
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Gas supply regulation in burners and combustion controls
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Pressure control for process equipment and heat exchangers
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Industrial and commercial boiler installations
Its flexibility and durability make it suitable for modern piping systems and retrofit applications.
Benefits
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Reliable pressure regulation under load changes
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Durable construction suited for harsh steam/gas environments
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Easy maintenance and pilot module interchangeability
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Stable performance with minimal hysteresis
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Versatile usage across steam and gas distribution systems
| Weight | 207 lbs |
|---|---|
| Dimensions | 33 × 26 × 25 in |
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