Ductile Iron Grooved OS&Y Valve designed for dual-purpose piping installations that combine fire protection and domestic water lines

Grooved End OS&Y Gate Valve(Hants Model HGO-GG), allows a quickly installation. The valve operates by opening and closing via a gate which lowers into or rises out of the valve. The grooves allow the valve to be quickly and securely connected to a piping system using grooved couplings.

This model series is available in multiple certified options for different applications: a UL listed model for fire protection systems, an NSF-certified model for drinking water applications under NSF/ANSI/CAN 61 and NSF/ANSI 372, and a dual UL + NSF certified and AWWA-compliant model for multi-purpose municipal and commercial piping systems.

Hants is a sub-brand of us. As a professional manufacturer of Grooved End OS&Y Gate Valve and replacement parts, supplying reliable fire protection solutions for various industries.

Key Features and Benefits of Grooved End OS&Y Gate Valve

• Certified to both UL and NSF standards, seamlessly meeting the stringent reliability requirements of fire protection systems while guaranteeing non-toxic water safety for potable water and shared commercial/residential water systems.
• Coated with high-grade epoxy both internally and externally, providing excellent corrosion resistance, preventing rust contamination, and ensuring compliance with strict drinking water safety regulations.
• Engineered with high-strength ductile iron in compliance with AWWA C515 standards, offering superior pressure ratings, high structural durability, and reliable performance in fire protection systems.
• Designed with grooved ends to enable rapid alignment and installation using standard grooved couplings, significantly reducing labor time, on-site equipment costs, and long-term maintenance efforts.
• Features a visual Outside Screw and Yoke (OS&Y) rising stem design that allows operators to instantly verify the valve's open or closed position, with pre-drilled or easily adaptable structures for installing supervisory signal switches.

Frequently Asked Questions(FAQ) about Grooved End OS&Y Gate Valve

Q: How does the dual UL and NSF status benefit combined or shared water systems?

In modern commercial or high-rise residential projects, shared water infrastructure is a massive trend for saving space and lowering layout costs. A standard fire valve can compromise drinking water quality, while a basic civil valve cannot handle fire-fighting pressures. Our multi-certified valve bridges this gap perfectly, maintaining absolute water purity for daily use under NSF guidelines, while remaining instantly ready to handle extreme firefighting demands under UL safety mandates.

NSF Certified for Drinking Water System Components: Lead Content (NSF/ANSI 372) , Health Effects (NSF/ANSI/CAN 61)

 

Catalogue(Model HGO-GG) Add to Inquiry