Product Description
The Festo VMPA series check valves are pneumatic, pilot-operated non-return valves designed for installation into channels 3 and 5 of VMPA series sub-bases . These valves serve as a reliable sealing component in valve manifolds, preventing unintended actuator switching caused by high back pressure . The check valve is pressed flush into the designated channels of compatible sub-bases, blocking the channels to ensure directional flow control . Available in two sizes – VMPA14-RV for 14 mm valve widths and VMPA2-RV for 20 mm valve widths – these components are essential for maintaining system integrity in complex pneumatic circuits .
Key Features & Advantages
Piloted Non-Return Function: The valve operates as a pneumatically actuated check valve, allowing flow in one direction while blocking reverse flow when back pressure is high, preventing unintended actuator switching .
Blocks Channels 3 and 5: Specifically designed for installation into exhaust channels 3 and 5 of compatible VMPA sub-bases, blocking these channels to prevent back pressure from affecting actuator position .
High Flow Capacity: Delivers a standard nominal flow rate of 350 l/min for the VMPA14-RV variant and 330 l/min for the VMPA2-RV variant, ensuring efficient pneumatic operation .
Excellent Corrosion Resistance: Rated with Corrosion Resistance Class (CRC) 4 – Particularly high corrosion stress, providing protection for demanding industrial environments including chemical plants and marine applications .
LABS (PWIS) Conformity: Complies with VDMA24364-B1/B2-L standards for paint-wetting impairment substances, making these check valves suitable for paint shop environments and applications sensitive to paint defects .
Compact and Lightweight: VMPA14-RV weighs only 0.17 g and VMPA2-RV weighs 0.19 g, adding negligible mass to the valve manifold assembly .
Clip Mounting Type: Designed for simple clip mounting – pressed flush into channels 3 and 5 of the sub-base without damaging the sealing surface .
Any Mounting Position: Flexible installation with no orientation restrictions, simplifying system design and integration .
Wide Operating Pressure Range: Operates from 0.5 bar to 8 bar (7.25 psi to 116 psi) for both operating and pilot pressure, providing versatility for various pneumatic applications .
Wide Ambient Temperature Range: Functions reliably from -5°C to 50°C, ensuring consistent performance across standard industrial environmental conditions .
Durable POM Housing with NBR Seals: Manufactured from polyoxymethylene (POM) housing material with NBR (nitrile rubber) seals, offering excellent chemical resistance, dimensional stability, and long service life .
RoHS Compliant: Manufactured without restricted hazardous substances, meeting stringent environmental compliance standards .
Technical Specifications
Brand: Festo
Model Series: VMPA
Product Numbers: 8039820 (VMPA14-RV), 8039821 (VMPA2-RV)
Product Type: Check Valve / Non-Return Valve / Piloted Non-Return Valve
Valve Function: Unlockable check valve function / Piloted non-return function
Actuation Type: Pneumatic
Mounting Type: Clip mounting (press into sub-base channels)
Mounting Position: Any
Installation Location: Channels 3 and 5 of compatible sub-bases
Standard Nominal Flow Rate: 350 l/min (VMPA14-RV), 330 l/min (VMPA2-RV)
Operating Pressure: 0.5 bar to 8 bar (0.05 MPa to 0.8 MPa)
Pilot Pressure: 0.5 bar to 8 bar (0.05 MPa to 0.8 MPa)
Operating Medium: Compressed air to ISO 8573-1:2010 [7:4:4]
Pilot Medium: Compressed air to ISO 8573-1:2010 [7:4:4]
Media Note: Operation with oil lubrication possible (required for further use)
Corrosion Resistance Class (CRC): 4 – Particularly high corrosion stress
LABS (PWIS) Conformity: VDMA24364-B1/B2-L
Ambient Temperature: -5°C to 50°C
Media Temperature: -5°C to 50°C
Storage Temperature: -20°C to 40°C
Housing Material: POM (Polyoxymethylene)
Seals Material: NBR (Nitrile rubber)
Product Weight: 0.17 g (VMPA14-RV), 0.19 g (VMPA2-RV)
Material Note: RoHS-compliant
Certifications: RoHS
Country of Origin: Germany
Compatible Sub-Bases (from Festo documentation)
The VMPA check valves are designed for installation into specific sub-base series :
For VMPA14-RV (14 mm width):
VMPAC-AP-14-... series
VMPAL-AP-14-... series
VMPA1-FB-AP-4-1... series
For VMPA2-RV (20 mm width):
VMPA2-FB-AP-2-1-... series
VMPAL-AP-20-... series
Installation Instructions (from Festo documentation)
Ensure the sealing surface of the sub-base is not damaged during installation
Press the check valve flush into channels 3 and 5 of the compatible sub-base
The check valve must be seated flush to ensure proper sealing function
The check valve is supplied as a single component and is not included with the sub-base .
Ideal For
Preventing unintended actuator switching caused by high back pressure in valve manifolds, installation into channels 3 and 5 of VMPA series sub-bases, MPA-S, MPA-L, and MPA-C valve terminal assemblies requiring directional flow control, paint shop environments requiring LABS conformity (VDMA24364-B1/B2-L), applications requiring CRC 4 high corrosion resistance for demanding environments, chemical plants, marine installations, and outdoor industrial applications.
Why Choose Festo VMPA Series Check Valve
Choose the Festo VMPA series check valve for its critical function of blocking channels 3 and 5 in VMPA sub-bases, preventing high back pressure from causing unintended actuator switching . Featuring piloted non-return function with pneumatic actuation, simple clip mounting that presses flush into sub-base channels, high flow capacity of 330-350 l/min, exceptional CRC 4 corrosion resistance for demanding environments, LABS conformity (VDMA24364-B1/B2-L) for paint shop applications, ultra-lightweight design (0.17-0.19 g) adding negligible mass, any mounting position flexibility, wide 0.5-8 bar operating pressure range, wide -5°C to 50°C temperature range, durable POM housing with NBR seals, RoHS compliance, and German engineering quality . Backed by Festo's comprehensive assembly instructions and compatibility tables for VMPAC-AP-14, VMPAL-AP-14/20, and VMPA2-FB-AP-2-1 series sub-bases , this check valve delivers reliable, corrosion-resistant, and leak-free directional flow control for demanding MPA valve terminal applications.
Tags
#Festo #VMPA #CheckValve #NonReturnValve #VMPA14RV #VMPA2RV #8039820 #8039821 #PilotedNonReturn #CRC4 #LABSConformant #PneumaticValve #ExhaustChannel #BackPressureProtection #MPA #MPAS #MPAL #MPAC #IndustrialAutomation #PneumaticControl #RoHS #MalaysiaSupplier
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