Product Description
The Festo VFOH is a corrosion-resistant one-way flow control valve with an external hexagon head as the actuating element, featuring an easy-to-clean design and increased corrosion protection for demanding industrial environments . This shut-off/flow control valve provides exhaust air flow control with non-return function and can be rotated horizontally through 360° in the assembled state, allowing precise alignment of tubing connections without removing the valve .
Key Features & Advantages:
External Hexagon Head Actuation: Allows adjustment using standard tools (e.g., Allen key or wrench) with an external hexagon adjusting element . Features an adjusting screw made of high-alloy stainless steel for excellent corrosion resistance and durability, with a nominal tightening torque of 3 Nm .
Increased Corrosion Protection: Achieves corrosion resistance class CRC 3 (high corrosion stress), making it suitable for demanding environments such as food processing, chemical plants, and outdoor applications . Constructed with FPM seals (high temperature and chemical resistant) and high-alloy stainless steel components, along with copper and PTFE-free materials and RoHS compliance .
Easy-to-Clean Design: Smooth external surfaces and a robust construction with minimal crevices simplify sanitation procedures, ideal for hygienic applications including food and beverage processing .
360° Horizontal Rotation in Assembled State: The valve body can be rotated horizontally through 360° after installation, allowing precise alignment of tube outlets without dismounting the valve . The outer nut simply needs to be loosened for rotation, simplifying installation in confined spaces.
Wide Temperature and Pressure Range: Operates at temperatures from -10°C to 150°C and pressures from 0.2 to 10 bar, suitable for hot or cold environments . The broad operating pressure range enables use in low-pressure sensitive systems and high-pressure production lines alike.
High Flow Rate Performance: Exhaust air flow control valve function with a non-return poppet system . Delivers standard nominal flow rates from 180 L/min to 520 L/min depending on the variant in the flow control direction, with flow rates up to 840 L/min at 6 bar .
Technical Specifications:
Brand: Festo
Model: VFOH Series (VFOH-LE-*)
Product No. (Example): VFOH-LE-A-G18-Q6 (578798)
Valve Function: Exhaust air flow control with non-return (poppet) function
Actuation Type: Manual, via external hexagon adjusting element
Nominal Flow Rate (Flow Control Direction): 180 – 520 L/min (varies by port size)
Nominal Flow Rate (Non-Return Direction): 103 – 790 L/min (varies by port size)
Operating Pressure: 0.2 – 10 bar
Ambient Temperature: -10°C to 150°C
Medium Temperature: 0°C to 150°C
Corrosion Resistance Class: CRC 3 – High corrosion stress
Housing Material: Wrought aluminum alloy
Seal Material: FPM (Fluoroelastomer) – high temperature and chemical resistant
Adjusting Screw Material: High-alloy stainless steel
Port 1 (Inlet) Connection: QS push-in (sizes: 4, 6, 8, 10, 12)
Port 2 (Outlet) Connection: G-thread (G1/8, G1/4)
Mounting Type: Screw-in (threaded bulkhead union)
Mounting Position: Any
Rotatability: 360° horizontal rotation when mounted
Cleanroom Suitability: Class 4 according to ISO 14644-1
Certifications: RoHS compliant, LABS (PWIS) conformity VDMA24364-B2-L
Ideal For:
Food and beverage processing requiring easy-to-clean and corrosion-resistant components, chemical and petrochemical plants with aggressive media and high temperatures, pharmaceutical and hygienic production environments, outdoor automation systems exposed to moisture and chemicals, high-temperature industrial processes up to 150°C, and applications demanding CRC 3 high corrosion protection.
Why Choose FESTO VFOH?
Choose the Festo VFOH series for its CRC 3 high corrosion resistance, easy-to-clean hygienic design, 360° rotatability for effortless installation, external hexagon actuation enabling precise tool-based adjustment, and exceptional temperature range from -10°C to 150°C—delivering durable, corrosion-resistant pneumatic flow control for demanding Malaysian industrial applications.
Tags:
#Festo #VFOH #OneWayFlowControlValve #FlowControlValve #CRC3 #CorrosionResistant #EasyToClean #HygienicDesign #ExternalHexagon #MalaysiaSupplier
Malaysia
