Anvil 4351012220 Steam Service Ball Valve 1-1/4 in Fnpt

Product Description

The ANVIL 4351012220 is a 1-piece stainless steel ball valve engineered for steam service applications. It features a standard port design with female NPT connections on both ends, a locking lever handle for positive shutoff, and Graphoil seals rated for the elevated temperatures and pressures common in steam systems. The 316 stainless steel body and handle provide corrosion resistance in demanding mechanical and process environments. Licensed plumbers, pipefitters, and steamfitters install this valve in hydronic and steam distribution systems where a reliable manual shutoff is required.

This valve is suited for residential and light commercial steam heating systems as well as process piping where stainless steel construction is specified. The 1-1/4 inch FNPT x FNPT end connections allow direct threaded installation into standard pipe runs. The locking lever handle prevents accidental repositioning in service environments subject to vibration or incidental contact. The Nova seat material and Graphoil seals are selected for compatibility with saturated steam service conditions.

Key Features

• 316 stainless steel body and handle for corrosion resistance in steam service
• 1-piece valve construction for a compact, low-maintenance design
• FNPT x FNPT end connections for standard threaded pipe installation
• Locking lever handle prevents accidental shutoff or opening
• Graphoil seals and Nova seat material rated for steam service conditions
• Standard port configuration suitable for typical flow and pressure drop requirements

Compatibility

Designed as an OEM-style replacement or new-installation manual ball valve for 1-1/4 inch threaded steam and hydronic piping systems.

Installation Notes

Installation should be performed by a licensed pipefitter or plumber in accordance with applicable mechanical codes such as the IFGC or ASME B31.1 for steam piping. Shut down and depressurize the system completely and allow all components to cool before removing or installing any valve. Apply an appropriate thread sealant rated for steam service to all male NPT threads before assembly. Do not use the locking lever as a wrench or pry point during installation.