
Weil McLain 560-528-987 Orifice
The Weil McLain 560-528-987 is a precision-engineered natural gas main burner orifice designed specifically for EGH and CGi series boilers. This critical component features a 7/16 hex head for straightforward installation and a precisely machined 2.45mm orifice size (equivalent to a custom drill size for specific BTU outputs). In the field, ensuring the correct manifold pressure and gas flow is non-negotiable for combustion safety; these orifices provide the exact metering required to prevent incomplete combustion or over-firing of the heat exchanger.
Constructed from high-grade metal alloy, the 560-528-987 orifice is built to withstand the high-temperature environment of the burner drawer assembly while resisting corrosion from trace moisture in the fuel line. As a veteran-preferred Weil McLain replacement part, it ensures your manifold maintains consistent delivery across all burner tubes. Proper alignment and the application of a small amount of pipe dope to the threads are recommended to maintain a gas-tight seal and prevent leaks within the burner base. For contractors servicing older EGH natural gas systems, maintaining a stock of these 2.45mm spuds is essential for prompt manifold overhauls.
Key Benefits
- Precision Gas Metering: Features a strictly calibrated 2.45mm diameter to ensure accurate natural gas flow and optimal BTU input.
- OEM Compatibility: Exact replacement for Weil McLain 560-528-987, ensuring fitment in EGH-series manifolds and select CGi units.
- Contractor-Grade Durability: Machined from heavy-duty brass/alloy for high thermal resistance and long-term reliability in the burner tray.
- Efficient Installation: The 7/16-inch hex design allows for quick removal and torqueing using standard open-end wrenches.
Common Questions
Can this orifice be used for Propane (LP) conversions?
No, this specific part is sized at 2.45mm for natural gas. Propane requires a significantly smaller orifice (typically 1.55mm for these series) due to its higher BTU content. Always verify the rating plate before installation.
How do I identify if this is the correct size for my boiler?
The orifice size is usually stamped directly on the spud barrel. If the stamp is illegible, refer to the manifold orifice sizing table in your specific Weil McLain boiler manual based on your altitude and model number.
Should I replace all orifices at once?
Yes, if you are performing a manifold overhaul or cleaning, it is best practice to replace the entire set of burner orifices to ensure uniform flame height and heat distribution across the sections.
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: $12.91
-65%$12.91
$4.52Weil McLain 560-528-987 Orifice
The Weil McLain 560-528-987 is a precision-engineered natural gas main burner orifice designed specifically for EGH and CGi series boilers. This critical component features a 7/16 hex head for straightforward installation and a precisely machined 2.45mm orifice size (equivalent to a custom drill size for specific BTU outputs). In the field, ensuring the correct manifold pressure and gas flow is non-negotiable for combustion safety; these orifices provide the exact metering required to prevent incomplete combustion or over-firing of the heat exchanger.
Constructed from high-grade metal alloy, the 560-528-987 orifice is built to withstand the high-temperature environment of the burner drawer assembly while resisting corrosion from trace moisture in the fuel line. As a veteran-preferred Weil McLain replacement part, it ensures your manifold maintains consistent delivery across all burner tubes. Proper alignment and the application of a small amount of pipe dope to the threads are recommended to maintain a gas-tight seal and prevent leaks within the burner base. For contractors servicing older EGH natural gas systems, maintaining a stock of these 2.45mm spuds is essential for prompt manifold overhauls.
Key Benefits
- Precision Gas Metering: Features a strictly calibrated 2.45mm diameter to ensure accurate natural gas flow and optimal BTU input.
- OEM Compatibility: Exact replacement for Weil McLain 560-528-987, ensuring fitment in EGH-series manifolds and select CGi units.
- Contractor-Grade Durability: Machined from heavy-duty brass/alloy for high thermal resistance and long-term reliability in the burner tray.
- Efficient Installation: The 7/16-inch hex design allows for quick removal and torqueing using standard open-end wrenches.
Common Questions
Can this orifice be used for Propane (LP) conversions?
No, this specific part is sized at 2.45mm for natural gas. Propane requires a significantly smaller orifice (typically 1.55mm for these series) due to its higher BTU content. Always verify the rating plate before installation.
How do I identify if this is the correct size for my boiler?
The orifice size is usually stamped directly on the spud barrel. If the stamp is illegible, refer to the manifold orifice sizing table in your specific Weil McLain boiler manual based on your altitude and model number.
Should I replace all orifices at once?
Yes, if you are performing a manifold overhaul or cleaning, it is best practice to replace the entire set of burner orifices to ensure uniform flame height and heat distribution across the sections.
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
Product Information
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Description
The Weil McLain 560-528-987 is a precision-engineered natural gas main burner orifice designed specifically for EGH and CGi series boilers. This critical component features a 7/16 hex head for straightforward installation and a precisely machined 2.45mm orifice size (equivalent to a custom drill size for specific BTU outputs). In the field, ensuring the correct manifold pressure and gas flow is non-negotiable for combustion safety; these orifices provide the exact metering required to prevent incomplete combustion or over-firing of the heat exchanger.
Constructed from high-grade metal alloy, the 560-528-987 orifice is built to withstand the high-temperature environment of the burner drawer assembly while resisting corrosion from trace moisture in the fuel line. As a veteran-preferred Weil McLain replacement part, it ensures your manifold maintains consistent delivery across all burner tubes. Proper alignment and the application of a small amount of pipe dope to the threads are recommended to maintain a gas-tight seal and prevent leaks within the burner base. For contractors servicing older EGH natural gas systems, maintaining a stock of these 2.45mm spuds is essential for prompt manifold overhauls.
Key Benefits
- Precision Gas Metering: Features a strictly calibrated 2.45mm diameter to ensure accurate natural gas flow and optimal BTU input.
- OEM Compatibility: Exact replacement for Weil McLain 560-528-987, ensuring fitment in EGH-series manifolds and select CGi units.
- Contractor-Grade Durability: Machined from heavy-duty brass/alloy for high thermal resistance and long-term reliability in the burner tray.
- Efficient Installation: The 7/16-inch hex design allows for quick removal and torqueing using standard open-end wrenches.
Common Questions
Can this orifice be used for Propane (LP) conversions?
No, this specific part is sized at 2.45mm for natural gas. Propane requires a significantly smaller orifice (typically 1.55mm for these series) due to its higher BTU content. Always verify the rating plate before installation.
How do I identify if this is the correct size for my boiler?
The orifice size is usually stamped directly on the spud barrel. If the stamp is illegible, refer to the manifold orifice sizing table in your specific Weil McLain boiler manual based on your altitude and model number.
Should I replace all orifices at once?
Yes, if you are performing a manifold overhaul or cleaning, it is best practice to replace the entire set of burner orifices to ensure uniform flame height and heat distribution across the sections.
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.











