Anvil 4351011440 Steam Service Ball Valve 1 Inch Fnpt

Product Description

The ANVIL 4351011440 is a 1-inch steam service manual ball valve built for high-pressure steam and fluid control applications. Constructed with a 1-piece carbon steel body and a stainless steel finish coating, this valve is rated to 2000 psi working pressure. The locking lever handle prevents accidental operation in demanding service environments. Graphoil seal material and a Nova seat provide the thermal resistance required for steam service duty. This valve is installed by licensed pipefitters and mechanical contractors working on steam distribution, process piping, and industrial HVAC systems.

This valve is sized for 1-inch pipe with female NPT connections on both ends, conforming to ASME B1.20.1 thread standards. The standard port design suits isolating service on steam lines where a full-bore flow path is not required. Typical installations include steam supply and return branch lines, equipment isolation points, and service shutoff locations in commercial and industrial mechanical systems where high-pressure shutoff reliability is critical.

Key Features

• 2000 psi maximum working pressure rated for steam service duty
• 1-piece carbon steel body with stainless steel finish coating for durability
• FNPT x FNPT end connections conforming to ASME B1.20.1 NPT thread standard
• Locking lever handle prevents unintended valve operation
• Graphoil seal material and Nova seat for high-temperature steam compatibility
• Standard port, 1-piece construction for compact inline installation

Compatibility

Designed as an OEM-style replacement or new-installation ball valve for 1-inch NPT steam service piping systems in commercial and industrial mechanical applications.

Installation Notes

Installation should be performed by a licensed pipefitter or mechanical contractor in accordance with applicable mechanical codes including ASME B31.1 for power piping or ASME B31.9 for building services piping. Depressurize and drain the steam system fully before removing or installing any valve. Verify NPT thread engagement and apply appropriate thread sealant rated for steam service. Do not exceed the rated working pressure of 2000 psi.