
The Patterson-Kelley 2550000112 is an authentic OEM replacement 2-inch commercial modulating gas safety shutoff valve. Precision-engineered to handle high-capacity gas train distribution loops, this heavy-duty valve integrates seamlessly with the microprocessor controls and variable speed combustion blowers found on larger industrial heating equipment.
Industrial-Grade Design & Performance Safety Features:
- High-Precision Combustion Modulation: Engineered to dynamically regulate fuel flow rates in lockstep with fan speeds, allowing the system to achieve clean, optimized mechanical turndown ratios without flame lifting or nuisance flame failures.
- Dual-Safety Shutoff Security: Features dual fast-closing internal safety valves to block high-pressure gas streams completely within milliseconds of a system fault, flame loss, or power interruption, ensuring strict adherence to commercial safety standards.
- Rugged Commercial Construction: The heavy-wall 2" casting features precision-machined threads designed to maintain an absolute airtight seal under constant pressure fluctuations, resisting vibration-induced stress inside busy mechanical rooms.
Safety Compliance Warning: Due to the high-capacity flow potential of this component, installation, field tuning, and combustion gas testing must be performed exclusively by a licensed commercial heating technician. Always use approved pipe compound resistant to the actions of liquefied petroleum and natural gases.
| Technical Metric | Operational Threshold Data |
|---|---|
| Manufacturer Part Number | 2550000112 (Alternative: 25-5000-0112) |
| Inlet / Outlet Connection Size | 2" Female NPT Threaded Interface Ports |
| Fuel Fuel Compatibility | Natural Gas or Liquid Propane (System Config Dependent) |
| Valve Function Type | Modulating Gas Flow Control / Automated Safety Shutoff |
| Casting Material | High-Strength Industrial Die-Cast Aluminum Body |
| Component Type | Original Equipment Manufacturer (OEM) Direct Replacement Part |
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.