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Johnson Controls VG2000 Series VG2831VM+845C00

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VG2831VM+845C00

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The VG2831VM+845C00 from Johnson Controls is a robust 3-way mixing flanged globe valve. Weighing 149 lbs, this valve features a 4-inch size and a unique threaded stem type measuring 3/8 inches, reflecting its solid build and quality.

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Technical specifications for VG2831VM+845C00

ManufacturerJohnson Controls
Product Type3-way mixing flanged globe valve
Product LineVG2000 Series
Part NumberVG2831VM+845C00
Valve Size4 inches
Stem Type3/8 in. threaded ('M' stem)
Actuator ModelMP84 (50 sq. in. effective diaphragm)
Actuator MountingSingle (factory-mounted)
Control Signal TypePneumatic, spring-return
Spring Range3 psig to 7 psig
Valve Stroke1 1/8 in.
PositionerNone
Closeoff Pressure25 psig (N.O. port)/6 psig (N.C. port)
Max. Actuator Supply Pressure (Pneumatic)25 psig (172 kPa)
End ConnectionsClass 125 ANSI Flat-Faced Flanged Connections
Body Material/FinishCast iron, black lacquer finish
Stem Material316 stainless steel
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The Johnson Controls VG2831VM+845C00 is classified as a 3-way mixing flanged globe valve that stands out with its significant weight of 149 lbs. The valve size is 4 inches and features a 3/8 inch threaded stem designated as an 'M' stem, ensuring durability. This model utilizes the MP84 actuator designed for single mounting. The effective diaphragm size of 50 sq. inches supports optimal operation in various applications.

Its control signal is pneumatic and governed by spring-return functionality. The device operates within a spring range of 3 to 7 psig. The valve stroke measures 1 1/8 inches, allowing for efficient movement and control. Notably, this valve does not include a positioner, which is typical for certain operational requirements.

In terms of performance specifications, the VG2831VM+845C00 has a closeoff pressure of 25 psig for the normally open (N.O.) port and 6 psig for the normally closed (N.C.) port. The maximum actuator supply pressure for pneumatic operations is 25 psig (172 kPa).

End connections adhere to Class 125 ANSI standards featuring flat-faced flanged connections, which facilitate straightforward installation in piping systems. The body of the valve is constructed from cast iron with a protective black lacquer finish, enhancing its resistance to wear and environmental factors. Furthermore, the stem's 316 stainless steel material contributes to the valve's reliability and longevity, ensuring it meets rigorous operational needs.