Series 335 ASME rated Boiler Pressure Relief Valves were developed to fill the hydronic industry's need for a smaller valve for OEM use on popular size boilers up to 510,000 BTU at 30psi. The compact design, all bronze construction, and modern appearance make them an ideal choice for a wide variety of smaller size OEM boilers. ASME Section IV at 30 PSI set point. Silicone disc is highly heat-resistant. Bronze body with bronze seat and stainless steel spring.

These specifications are subject to change by the manufacturer, and are only approximate. For precise specifications, please call our inside sales department at 860-221-SALE (860-221-7253).

Series 335 ASME rated Boiler Pressure Relief Valves were developed to fill the hydronic industry's need for a smaller valve for OEM use on popular size boilers up to 510,000 BTU at 30psi. The compact design, all bronze construction, and modern appearance make them an ideal choice for a wide variety of smaller size OEM boilers. ASME Section IV at 30 PSI set point. Silicone disc is highly heat-resistant. Bronze body with bronze seat and stainless steel spring.

Primary Industry Classification:Fabricated Metal Product Manufacturing Established:1956 Beginning in New York City as a small specialty manufacturer servicing the valve industry, Mueller Steam Specialty incorporated in 1956 to start manufacturing pipeline strainers. Since then, the company and its product offering have expanded dramatically. The company moved to North Carolina in 1972 and due to its continued growth, moved again in 1992 to a new and larger facility in St. Pauls, North Carolina. There are now over 300,000 square feet of ISO 9001:2008 registered manufacturing space devoted to Mueller’s various product lines. In addition to a full range of pipeline and specialty strainers, the company now manufactures a broad offering of check valves and butterfly valves. Mueller Joins the Watts Family In December 2005, Mueller became a part of the Watts Water Technologies, Inc. family of companies. The resources and support that Watts has added to Mueller have enabled the company to consolidate previous efforts while at the same time plan for future growth and expansion in products and services. Mueller Today - Mueller Steam Specialty is the world’s largest supplier of strainers and the number one provider of specialty products serving the valve industry. While the company has seen many changes, the dedication to quality, service and delivery remains the same. As always, Mueller Steam Specialty brand strainers and valves will continue to be the premier products of their kind in the marketplace. We offer the following: Strainers, Basket Strainers - Duplex, Basket Strainers - Simplex, Tee Strainers: Temporary Strainers, Turbine Meter Strainers, U.L. Fireline Strainers, Y Strainers: Specialty Products Grooved Products, CHEXTER™ Check Valves, Sure Check™ Check Valves, Silent Check Valves, Control Cheks™, Butterfly Valves, Line Blinds, Suction Diffusers. The New Lead Free* Law - On January 4, 2014 the "Reduction of Lead in Drinking Water Act," more commonly known as the Lead Free law, goes into effect. The new national mandate requires that every pipe, fixture, and fitting used to convey water for potable use contain less than 0.25% of lead by weight. Here at Mueller, we are committed to helping you plan for this transition—so we’ve compiled a comprehensive set of resources at www.WeAreLeadFree.net. Our collection of tools, which includes a product lookup guide, FAQs, videos, and more, is designed to help you successfully handle the Lead Free changeover. Need to locate Lead Free products? We’ve got the answers in our Product Lookup Guide. Lead Free Labels & Identifiers: We know it’s critical to quickly and easily identify Lead Free products and part numbers. Take a look at our website to learn more.

These specifications are subject to change by the manufacturer, and are only approximate. For precise specifications, please call our inside sales department at 860-221-SALE (860-221-7253).