Kunkle Valve 6021GFT01AAM0150 Valve

The Kunkle Valve 6021GFT01AAM0150 (interchangeable with 6021GFT01-AM0150) is a high-capacity bronze safety relief valve designed specifically for ASME Section I steam service. Featuring a 1.25-inch MNPT inlet and a 1.5-inch FNPT side outlet, this industrial pressure relief valve is factory-set to 150 PSI with a flow capacity of 4234 PPH. Unlike the standard 6010 series, the 6021 configuration utilizes a Teflon (PFA) disc insert and a stainless steel spring to ensure superior seating integrity and leak-free performance in demanding boiler applications. The heavy-duty bronze casting and full-nozzle design support a maximum temperature rating of 406°F. Professional contractors prefer this Kunkle 6000 series model for its dual control rings, which allow for precise exact blowdown control and minimal simmer during operation. The grooved piston disc reduces friction, while the pivot design compensates for spring side thrust, making it a reliable solution for steam generators, pressure vessels, and pressure reducing stations.

• ASME Section I & VIII Certified: National Board certified for V and UV stamps, ensuring compliance for steam and non-hazardous gas systems.
• Superior Sealing: Equipped with a Teflon (PFA) seat for exceptional tightness and reduced maintenance in high-cycle steam environments.
• Precise Adjustability: Dual control rings allow technicians to fine-tune opening pressure and blowdown settings for specific system requirements.
• Rugged Construction: Features a heavy-duty bronze body and a wide hex nozzle for increased wrenching clearance during field installation.
• Consistent Performance: The ball bearing pivot between the disc and spring corrects misalignment, ensuring linear travel even under high stress.

Is this valve suitable for air or gas service?
While the 6021GFT01AAM0150 is often specified for ASME Section I steam, it is also National Board certified for Section VIII air and non-hazardous gas applications. However, the Teflon disc is optimized for steam performance.

Can I install this valve in a vertical or horizontal orientation?
For proper operation and to satisfy code requirements, safety relief valves must be installed in a vertical position with the spindle upright to prevent condensate buildup and ensure accurate popping pressure.

What is the difference between the 6021 and 6010 models?
The Kunkle 6021 is essentially a 6010 model upgraded with a Teflon (PFA) disc insert, providing a softer, more reliable seal in steam applications compared to the metal-to-metal seating of the base 6010.

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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.