An Emerson brand, Kunkle is a renowned pressure relief valve manufacturer. Erastus B. Kunkle invented the safety valve to prevent overpressure in locomotive engines. Kunkle patented it in 1875. Since that time, Kunkle has earned its reputation for high-quality valves, and other equipment manufacturers ship their products with Kunkle’s valves pre-installed.

 

Kunkle Valve is a leading supplier of Safety and Relief Valve Products for industrial and commercial applications, such as steam boilers, air, or gases. Kunkle products are available with certification to ASME Section I, Section IV, and Section VIII and Section XIII. In addition, Kunkle Valve offers a range of non-code liquid bypass products. The breadth of the Kunkle Valve product offering is second to none in terms of industrial and commercial safety and relief valve products. Products range in size from ¼” NPT to 6” flange and are suitable for services ranging from cryogenic to 850°F, at pressures ranging from vacuum to 7500 psig. Tri-Clover and BSP threads available on selected models.