V-3766-1001 Johnson Controls Valve

Overview

The Johnson Controls V-3766-1001 is a 1/2-inch, 2-way pneumatically actuated flare valve designed to accurately regulate the flow of hot or cold water in small HVAC terminal units. Operating as a push-down-to-close, normally open valve, it features a 3 to 6 psig spring range and a flow coefficient (Cv) of 1.0.

Features

• Features standard non-adjustable ring pack packings for proven reliability and long life.
• Built with a body rated for 400 psig static pressure, allowing versatile installation options within a building.
• Equipped with 1/2-inch OD SAE 45 flare connections that eliminate the need for solder installation and enable easy removal for maintenance.
• Designed with a modulating plug that provides an equal percentage relationship between valve travel and fluid flow.
• Features a molded composition disc bonded to the valve plug assembly to ensure a tight shutoff.

Specifications

• Valve Size: 1/2 inch
• Configuration: 2-Way, Push-Down-to-Close, Normally Open (N.O.)
• Flow Coefficient: 1.0 Cv (0.85 kv)
• Spring Range: 3 to 6 psi (21 to 41 kPa)
• Rangeability: 7:1
• Maximum Pressure Rating: 400 psig (2,756 kPa) up to 150°F (66°C), decreasing to 345 psig (2,377 kPa) at 281°F (140°C)
• Fluid Operating Temperature Limits: 281°F (140°C) maximum for pneumatic actuators
• Materials: Cast brass body, stainless steel stem, brass trim, and composition disc seat

Applications

The V-3766-1001 valve is designed for zoning and temperature control applications within small heating, ventilating, and air conditioning terminal units. It is primarily used to control the fluid dynamics of hot and chilled water systems in equipment such as fan coil units, perimeter radiation systems, and reheat coils.