Brass Seated Hard Seal Ductile Iron Gate Valve

A brass hard sealed ductile iron gate valve has launched, delivering unmatched durability and performance for water supply, sewage treatment, and industrial fluid systems worldwide. Engineered to meet international standards including DIN EN 1171, EN 1074-2, and BS 5163, this valve combines the strength of ductile iron with the corrosion-resistant precision of brass seating, addressing critical challenges in global infrastructure maintenance.

The valve’s core innovation lies in its metal-to-metal hard-sealing design, featuring a brass seat and ball-infused ductile iron body that ensures zero-leakage performance even in high-pressure, high-temperature environments. With a pressure rating of PN16 and shell test pressure of 1.5 times nominal, it reliably handles temperatures up to 400℃ and resists corrosion, erosion, and wear from harsh media like untreated water and industrial slurries. Its full-passage flat-bottom flow path minimizes fluid resistance by up to 30% compared to conventional valves, reducing energy consumption and preventing sediment buildup-a common issue in traditional gate valves.

Built for longevity and ease of maintenance, simplifying installation and reducing logistics costs for global projects. The precision cast ductile iron body (GGG50 grade) delivers exceptional tensile strength, while the non-rising stem (NRS) design enhances operational visibility and protects against damage in confined spaces. Available in sizes DN50 to DN600 with flange options conforming to EN 1092 and BS 4504, it offers versatile integration for municipal, commercial, and industrial applications.

“Water infrastructure demands reliability that stands the test of time,” said a senior product engineer. “Our brass sealed ductile iron gate valve reduces lifecycle costs through extended service life up to 50% longer than soft-seated alternatives and minimal downtime, making it ideal for export markets with stringent quality and performance requirements.”

This gate valve is available with manual, gearbox, electric, or pneumatic actuation, catering to diverse operational needs across global projects.

For more information, please contact KR Valve.