Watts 0009818 Valve
The Watts 0009818, known in the field as the Series 26AA, is a specialized small capacity pressure regulator designed for high-precision water applications. This 1/2 inch water pressure reducing valve is factory-calibrated for a pressure range of 1 to 25 psi, making it the industry standard for evaporative coolers, fountain dispensers, and laboratory equipment where low-flow consistency is critical. Featuring a lead-free brass body and a rugged stainless steel strainer, the 26AA ensures reliable HVAC pressure control by protecting downstream components from thermal expansion and high-pressure surges. The bypass feature integrated into the design allows for internal relief of pressure buildup, maintaining a steady reduced pressure setting even under no-flow conditions. For service technicians, the easy-to-clean strainer and simplified diaphragm replacement make this low pressure water regulator a primary choice for long-term installations in demanding commercial or residential environments.
Key Benefits for Contractors
- Corrosion-Resistant Construction: Utilizes a lead-free brass body and stainless steel integral strainer to prevent scale buildup and debris infiltration.
- Precision Low-Pressure Control: Specifically engineered for low-pressure water systems requiring a stable 1 to 25 psi output range.
- Internal Bypass Mechanism: Protects the system from thermal expansion damage by allowing excess pressure to bleed back to the inlet side.
- Serviceability: Designed with a removable bottom plug for quick access to the strainer and seat for rapid field maintenance.
Common Technical Questions
What is the maximum inlet pressure rating for this regulator?
The Watts 26AA is rated for a maximum supply pressure of 300 psi, though it is optimized for high-ratio reduction to the 1-25 psi field setting.
Can this valve be used for hot water applications?
This specific model is designed for water temperatures up to 140°F (60°C), making it suitable for standard domestic and commercial supply lines.
How do I adjust the outlet pressure on the 0009818?
The reduced pressure can be adjusted by loosening the lock nut and turning the adjustment bolt clockwise to increase pressure or counter-clockwise to decrease it.
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: $510.83
-65%$510.83
$178.79Watts 0009818 Valve
The Watts 0009818, known in the field as the Series 26AA, is a specialized small capacity pressure regulator designed for high-precision water applications. This 1/2 inch water pressure reducing valve is factory-calibrated for a pressure range of 1 to 25 psi, making it the industry standard for evaporative coolers, fountain dispensers, and laboratory equipment where low-flow consistency is critical. Featuring a lead-free brass body and a rugged stainless steel strainer, the 26AA ensures reliable HVAC pressure control by protecting downstream components from thermal expansion and high-pressure surges. The bypass feature integrated into the design allows for internal relief of pressure buildup, maintaining a steady reduced pressure setting even under no-flow conditions. For service technicians, the easy-to-clean strainer and simplified diaphragm replacement make this low pressure water regulator a primary choice for long-term installations in demanding commercial or residential environments.
Key Benefits for Contractors
- Corrosion-Resistant Construction: Utilizes a lead-free brass body and stainless steel integral strainer to prevent scale buildup and debris infiltration.
- Precision Low-Pressure Control: Specifically engineered for low-pressure water systems requiring a stable 1 to 25 psi output range.
- Internal Bypass Mechanism: Protects the system from thermal expansion damage by allowing excess pressure to bleed back to the inlet side.
- Serviceability: Designed with a removable bottom plug for quick access to the strainer and seat for rapid field maintenance.
Common Technical Questions
What is the maximum inlet pressure rating for this regulator?
The Watts 26AA is rated for a maximum supply pressure of 300 psi, though it is optimized for high-ratio reduction to the 1-25 psi field setting.
Can this valve be used for hot water applications?
This specific model is designed for water temperatures up to 140°F (60°C), making it suitable for standard domestic and commercial supply lines.
How do I adjust the outlet pressure on the 0009818?
The reduced pressure can be adjusted by loosening the lock nut and turning the adjustment bolt clockwise to increase pressure or counter-clockwise to decrease it.
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.
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Description
The Watts 0009818, known in the field as the Series 26AA, is a specialized small capacity pressure regulator designed for high-precision water applications. This 1/2 inch water pressure reducing valve is factory-calibrated for a pressure range of 1 to 25 psi, making it the industry standard for evaporative coolers, fountain dispensers, and laboratory equipment where low-flow consistency is critical. Featuring a lead-free brass body and a rugged stainless steel strainer, the 26AA ensures reliable HVAC pressure control by protecting downstream components from thermal expansion and high-pressure surges. The bypass feature integrated into the design allows for internal relief of pressure buildup, maintaining a steady reduced pressure setting even under no-flow conditions. For service technicians, the easy-to-clean strainer and simplified diaphragm replacement make this low pressure water regulator a primary choice for long-term installations in demanding commercial or residential environments.
Key Benefits for Contractors
- Corrosion-Resistant Construction: Utilizes a lead-free brass body and stainless steel integral strainer to prevent scale buildup and debris infiltration.
- Precision Low-Pressure Control: Specifically engineered for low-pressure water systems requiring a stable 1 to 25 psi output range.
- Internal Bypass Mechanism: Protects the system from thermal expansion damage by allowing excess pressure to bleed back to the inlet side.
- Serviceability: Designed with a removable bottom plug for quick access to the strainer and seat for rapid field maintenance.
Common Technical Questions
What is the maximum inlet pressure rating for this regulator?
The Watts 26AA is rated for a maximum supply pressure of 300 psi, though it is optimized for high-ratio reduction to the 1-25 psi field setting.
Can this valve be used for hot water applications?
This specific model is designed for water temperatures up to 140°F (60°C), making it suitable for standard domestic and commercial supply lines.
How do I adjust the outlet pressure on the 0009818?
The reduced pressure can be adjusted by loosening the lock nut and turning the adjustment bolt clockwise to increase pressure or counter-clockwise to decrease it.
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.
