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Johnson Controls VG7000 Series VG7842ST+3008DP

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VG7842ST+3008DP

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The VG7842ST+3008DP is a three-way mixing control valve, offering efficient performance in fluid control applications. This valve is constructed from cast bronze and includes brass trim, ensuring durability and reliability.

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Technical specifications for VG7842ST+3008DP

ManufacturerJohnson Controls
Product TypeThree-way mixing bronze control valve
Product LineVG7000 Series
Part NumberVG7842ST+3008DP
Flow Coefficient (Cv)46.2 Cv
Operating Temperature Range2 to 140°C (valve fluid)
Valve Operating Temperature2 to 65°C
Trim/Flow CharacteristicsBrass trim, linear flow (three-way)
End ConnectionsNPT (threaded)
Actuator ModelV-3000-8012 (8 sq in. effective area) with V-9502 positioner
Spring Range4 to 8 psig
Valve Body RatingANSI B16.15, Class 250 (EN 12360)
Leakage0.01% of max. flow
Rangeability>100:1
MaterialsBody: Cast Bronze; Bonnet: Brass
Valve Stroke3/4 in. (19 mm)
Max. Operating Pressure Drop30 psig water; 15 psig steam
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The Johnson Controls VG7842ST+3008DP is engineered as a three-way mixing control valve primarily made from cast bronze, with brass trim that supports linear flow characteristics. This valve is compact yet robust, weighing in at 19.2 lbs. It utilizes NPT threaded end connections for simpler integration into existing systems.

The valve supports a flow coefficient of 46.2 Cv, indicating its capacity to handle substantial flow rates efficiently. It operates within an extensive temperature range for the valve fluid, specifically from 2°C to 140°C. The valve itself can function properly between 2°C and 65°C. An effective actuator model, V-3000-8012, with an effective area of 8 square inches, is paired with a V-9502 positioner to ensure accurate control.

The spring range for this valve operates from 4 to 8 psig, allowing for stringent control of pressure within the system. Additionally, the body of the valve adheres to ANSI B16.15 Class 250 (EN 12360) standards, ensuring it meets high-performance criteria. It is notable for its low leakage rate, only 0.01% of maximum flow, translating to reliable operation without significant loss of fluid. The valve's rangeability exceeds 100:1, offering significant flexibility across flow conditions.

With a valve stroke measuring 3/4 inch (19 mm), this model is capable of precise adjustments. Furthermore, it accommodates maximum pressure drops of 30 psig for water applications and 15 psig for steam, making it versatile for various operational needs.