Kunkle Valve 6021HGT01AAM0150 Valve

The Kunkle Valve 6021HGT01AAM0150 is a heavy-duty bronze safety relief valve specifically designed for high-demand steam boiler overpressure protection. Featuring a 1-1/2" MNPT inlet and a 2" FNPT side outlet, this model is configured with a 150 PSI set pressure and an H-size orifice (.863 sq. in.), delivering a certified flow capacity of 6,596 PPH. Unlike the standard 6010 series, the 6021 variant utilizes a Teflon (PFA) disc insert, providing superior leak-free performance and improved seating integrity for saturated steam applications up to 406°F.

This valve is engineered for compliance with ASME Section I and VIII ("V" and "UV" code stamps) as well as PED requirements for non-hazardous gases. The construction includes a stainless steel spring for consistent set-point reliability and a plain lever for manual testing. Dual control rings allow for precise blowdown adjustment, while the grooved piston-type disc minimizes friction during operation. This part is a direct replacement for the 6021HGT01-AM0150, ensuring seamless integration into existing steam lines, pressure vessels, and pressure reducing stations.

Key Benefits:

• Enhanced Sealing: The PFA Teflon disc insert ensures tight shut-off and prevents simmer in high-cycle steam environments.
• Code Compliance: Fully National Board Certified and ASME Section I & VIII rated to meet strict facility safety inspections.
• Durable Construction: High-quality bronze body and stainless steel internal components offer excellent corrosion resistance and longevity.
• Simplified Maintenance: Features a wide hex nozzle for easy wrenching and a pivot design that corrects spring side thrust and misalignment.

Common Questions:

Can this valve be used for air or gas service?
While the 6000 series is versatile, the 6021 model with the PFA Teflon disc is specifically optimized for steam service. For dedicated air or gas applications, technicians typically opt for the metal-seated 6010 series.

What is the difference between the 6021HGT01AAM0150 and the 6021HGT01-AM0150?
These part numbers are identical; the additional "A" in the sequence is a common manufacturer formatting variation that does not change the physical specifications or 150 PSI rating.

How do I verify the capacity for my boiler?
This valve is rated for 6,596 PPH (pounds per hour) at a 150 PSI set point. Ensure your boiler's maximum steaming capacity does not exceed this value to maintain ASME code compliance.

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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.