Overview
The Johnson Controls VG7241ET+3008E is a pneumatic valve and actuator assembly featuring a 1/2-inch 2-way normally open globe valve paired with a V-3000-8012 exposed pneumatic actuator. Designed for precise modulating control of water and steam in commercial HVAC systems, this assembly combines a rugged cast bronze body with brass trim to deliver long-lasting durability and corrosion resistance.
Features
- Push-down-to-close (PDTC) stem action provides a predictable normally open fail-safe position in the event of air pressure loss
- Equal percentage flow characteristics ensure precise, stable control at low flow rates
- Long operational lifespan tested for over one million cycles
- High closeoff capabilities driven by a reliable pneumatic spring-return mechanism
- Serviceable design allows for in-place valve repacking to minimize maintenance downtime
Specifications
- Connection Type: 1/2-inch NPT (National Pipe Thread)
- Flow Coefficient: 1.8 Cv
- Actuator Type: Pneumatic with a nominal spring range of 9 to 13 psi
- Materials: Cast bronze body, brass trim (plug), stainless steel stem, and elastomer disc seat
- Pressure Ratings: ANSI Class 250 body rating; maximum static pressure up to 400 psi; water pressure drop up to 35 psid, steam up to 15 psid
- Temperature Range: Fluid compatibility from 35°F to 248°F for water, and up to 284°F for steam at 35 psi
Applications
- Ideal for modulating control of hot water, chilled water, and steam service in commercial HVAC hydronic systems
- Well-suited for terminal equipment requiring tight and stable regulation, such as fan coil units and air handling units
- Applicable in industrial environments demanding robust ANSI Class 250 construction and fail-safe safety operations



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