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Schneider Electric VB Series VK4-7223-303-4-6

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VK4-7223-303-4-6

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The VK4-7223-303-4-6 from Schneider Electric is a globe control valve designed for precise media flow regulation. This unit features a 3/4-inch size and is configured as a 2-way normally-closed valve that utilizes a pneumatic actuator and positive positioner for efficient operation.

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Technical specifications for VK4-7223-303-4-6

ManufacturerSchneider Electric
Product TypeGlobe Control Valve
Product LineVB Series
Part NumberVK4-7223-303-4-6
Valve Configuration2-Way, Normally-Closed (Stem-Up-Closed) and Spring Return Valve
Actuator and PositionerMK-4621 pneumatic actuator with an AK-42309-500 positive positioner
Valve Size3/4 Inches (20 mm) NPT/Union Sweat
Flow Coefficient (Cv)7.5 Cv
Actuator Spring Range10 to 13 psi
Body MaterialBronze
Seat MaterialBronze
Stem MaterialStainless Steel
Plug MaterialBrass
Packing MaterialSpring-loaded TFE/EPDM
Static Pressure RatingANSI Class 250
Max. Allowable Differential Water Pressure35 psi (241 kPa)
Media Temperature Range-7 to 138°C
Max. Ambient Actuator Temperature60°C
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The Schneider Electric VK4-7223-303-4-6 model is structured as a globe control valve capable of handling various fluid applications. The setup features a 3/4-inch valve size accommodating NPT/Union sweat connections. It operates as a 2-way normally-closed valve, which means it closes on the stem's upward movement and uses a spring return to maintain its default position.

This control valve pairs with the MK-4621 pneumatic actuator and the AK-42309-500 positive positioner, promoting accurate flow management and control. The flow coefficient is determined to be 7.5 Cv, making it suitable for a range of applications requiring the regulation of liquid flow.

Constructed with a bronze body and seat, this valve ensures longevity and resistance to corrosion. Stainless steel is utilized for the stem's construction, thus ensuring reliable operation over time. The plug is made from brass, while spring-loaded TFE/EPDM packing is used to provide effective sealing.

This valve can withstand static pressures of up to ANSI Class 250 and handles a maximum allowable differential water pressure of 35 psi (241 kPa). The actuator can function effectively in ambient temperatures that reach up to 60°C. Its media temperature range spans from -7 to 138°C, allowing adaptability for various industrial conditions.