Xylem-Hoffman Specialty 401437 75-H Steam Vent 1/2″ F x 3/4″ M 10 PSI

Description

Hoffman Specialty 75-H Steam Vent Overview

The Xylem-Hoffman Specialty 401437 Model 75-H is a high-quality steam radiator air vent engineered for reliable performance in residential and light commercial one-pipe steam heating systems. As steam enters the radiator, the 75-H automatically vents trapped air to allow full steam distribution, then seals shut when steam reaches the vent — preventing steam loss and maintaining system efficiency.

Key Features

• Model 75-H radiator steam vent from Hoffman Specialty, a trusted name in hydronic and steam system components
• 1/2″ female inlet connection for easy installation on standard radiator air vent tappings
• 3/4″ male outlet connection for flexible system integration
• Rated for up to 10 PSI steam pressure — suitable for low-pressure one-pipe steam systems
• Automatic operation: opens to release air, closes when steam arrives to prevent steam blow-through
• Durable construction designed for long service life in demanding steam environments

Application

The Hoffman Specialty 75-H steam vent is ideal for use on cast iron radiators in one-pipe steam heating systems. Proper air venting is critical to even heat distribution throughout the system — a faulty or clogged vent can result in cold radiators, water hammer, and energy waste. The 75-H provides dependable, automatic venting to keep your steam system operating at peak performance.

Specifications

• SKU: 401437
• Model: 75-H
• Inlet Connection: 1/2″ Female
• Outlet Connection: 3/4″ Male
• Maximum Pressure Rating: 10 PSI
• Application: One-pipe steam radiator systems
• Brand: Xylem-Hoffman Specialty