Conbraco 19-KGFA-125 Valve

The Conbraco 19-KGFA-125 is a professional-grade steam safety relief valve engineered specifically for high-capacity overpressure protection in ASME Section I and Section VIII applications. This 1.25" x 1.5" MNPT x FNPT valve is factory-set at 125 PSI, providing a certified discharge capacity of 3595 PPH. Designed with a heavy-duty cast bronze body and brass trim, it utilizes a PFA Teflon soft seat to ensure positive shut-off and resistance to corrosive boiler chemicals. The top-guided alignment and stainless steel springs maintain consistent pop-off pressure and reseating accuracy, which is critical for boiler overpressure protection in commercial laundries, hospitals, and industrial processing plants. A wide integrated wrenching hex facilitates rapid installation on pressure piping systems, while the tapped body drain allows for the safe management of condensate buildup. This Apollo 19 series valve is a standard-issue component for technicians maintaining steam power boilers and unfired pressure vessels where reliability is non-negotiable.

• ASME Section I & VIII Certified: National Board capacity certified for high-pressure steam systems and pressure vessels.
• PFA Teflon Soft Seating: Delivers superior seat tightness and vibration resistance compared to metal-to-metal alternatives.
• High Flow Capacity: Rated for 3,595 lbs/hr to handle significant steam discharge requirements safely.
• Rugged Construction: Built with an ASTM B584 bronze body and stainless steel springs for durability in 406°F environments.
• Contractor-Friendly Design: Features a t-handle lift lever for manual testing and a large hex base for secure torquing during HVACR valve replacement.

What is the difference between an ASME Section I and Section VIII steam valve?
Section I valves, like the 19-KGFA-125, are designed for power boilers and must meet stricter accumulation and blowdown requirements. While a Section I valve can often be used in Section VIII applications, the reverse is generally not permitted by code.

Can I install this valve horizontally if space is limited?
No. To ensure proper mechanical operation and drainage, this safety valve must be installed in a vertical, upright position. Tilting the valve more than one degree off-vertical can lead to seat leakage or mechanical binding.

How do I determine if 3595 PPH is sufficient for my boiler?
The total discharge capacity of your safety valves must exceed the maximum steam generation capacity of your boiler. Check the boiler nameplate for the BTU or PPH rating to ensure this valve meets the safety overhead required by local jurisdiction.

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.