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Johnson Controls VG2000 Series VG2831TM+843E00

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VG2831TM+843E00

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The VG2831TM+843E00 model from Johnson Controls is a pneumatically-actuated 3-way mixing globe valve designed to manage fluid flow efficiently. This valve features durable construction and is rated according to ASME standards for reliable performance.

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Technical specifications for VG2831TM+843E00

ManufacturerJohnson Controls
Product Type3-way mixing globe valve, pneumatically-actuated
Product LineVG2000 Series
Part NumberVG2831TM+843E00
Valve Body RatingASME B16.1, Class 125
Valve Size2-1/2 inches
Operating Temperature Range2°C to 138°C (fluid)
Maximum Allowable Pressure (Water)175 psig at 66°C, 125 psig at 138°C
Maximum Allowable Pressure (Steam)35 psig (241 kPa) of saturated steam at 138°C
Flow CharacteristicModified linear
Body MaterialCast iron
Stem Material316 stainless steel
Plug MaterialBrass
Packing MaterialEPT (Ethylene Propylene Terpolymer) ring packs
Spring Range9 to 13 psig
Closeoff Pressure35 psig for N.O. port / 45 psig for N.C. port
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The Johnson Controls VG2831TM+843E00 is engineered as a 3-way mixing globe valve, utilizing pneumatic actuation for precise control. It conforms to ASME B16.1 standards and is classified under Class 125, signaling its robust design suitable for various applications. Weighing in at 86.0 lbs with a valve size of 2-1/2 inches, it provides a sturdy presence in any system. This valve is adept at throttling flow within its specified operating temperature range, which spans from 2°C to 138°C for various fluids.

For water applications, the valve can withstand a maximum allowable pressure of 175 psig at 66°C and 125 psig at 138°C. When used with saturated steam, it has a pressure limit of 35 psig (241 kPa) at 138°C. Its modified linear flow characteristic ensures efficient fluid handling.

Constructed from durable cast iron, the body combines strength with longevity, while the stem is made from 316 stainless steel for corrosion resistance. The plug material is brass, ensuring secure sealing and efficient operation. The packing comprises EPT (Ethylene Propylene Terpolymer) ring packs that enhance sealing integrity. The valve operates effectively within a spring range of 9 to 13 psig, with a closeoff pressure of 35 psig for normally open (N.O.) ports and 45 psig for normally closed (N.C.) ports. Overall, the VG2831TM+843E00 valve is designed for reliability, making it suitable for demanding industrial applications.