Anvil 4351012200 Steam Service Ball Valve 1 Inch Fnpt

Product Description

The ANVIL 4351012200 is a 1-inch steam service manual ball valve designed for on/off flow control in steam and high-temperature piping systems. Built in a 1-piece body from 316 stainless steel, it handles the thermal cycling and corrosive conditions common in steam lines. The standard port design delivers reliable shutoff, while the Graphoil seal material and Nova seat are selected for steam compatibility. This valve is installed by licensed plumbers and pipefitters working on commercial and industrial steam distribution systems where cycle life and leak-tight performance matter.

This valve is suited for steam service applications in commercial buildings, industrial process piping, and mechanical rooms where a durable, corrosion-resistant shutoff is required. The FNPT x FNPT end connections allow direct threaded installation into standard iron or stainless pipe systems. The locking lever handle prevents accidental operation in high-traffic or vibration-prone environments, making it a practical choice for equipment isolation and service valve applications.

Key Features

• 316 stainless steel body and handle for corrosion resistance in steam service
• Graphoil seal material rated for high-temperature steam conditions
• Nova seat material designed for steam valve compatibility
• FNPT x FNPT threaded end connections for direct pipe installation
• Locking lever handle prevents inadvertent valve operation
• 1-piece valve body construction for a compact, low-maintenance design

Compatibility

Designed as an OEM-style replacement or new-installation steam service ball valve for 1-inch threaded pipe systems requiring FNPT x FNPT connections.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical codes such as the ASME B31.9 building services piping standard. Isolate and fully depressurize the steam system and allow all components to cool before removing or installing any valve. Apply thread sealant rated for steam service to all FNPT connections. Do not use the valve handle as a lever for tightening the valve body into the piping.