VSNC-FC-M52-MD-G14-F8-1B2 Festo Solenoid Valve

Technical Overview

The Festo VSNC-FC-M52-MD-G14-F8-1B2 is a high-performance piston gate solenoid valve designed for process automation. This versatile valve features a convertible function allowing for 5/2-way or 3/2-way operation. It is specifically designed with a NAMUR port pattern for mounting on pneumatic actuators and includes internal pilot air supply. Built with a wrought aluminium alloy housing and NBR seals, it supports a standard nominal flow rate of 1250 l/min and operates across a temperature range of -20 to 60 °C.

Key Features

5/2-way or 3/2-way convertible valve function
Electric actuation with pilot control
NAMUR port pattern for direct actuator mounting
Mechanical spring reset
IP65 and IP67 degree of protection with plug socket
Detenting and non-detenting manual override
Internal pilot air supply
RoHS-compliant materials
Corrosion resistance class CRC 2 (moderate stress)

Technical Specification Matrix

Parameter	Value
Valve function	5/2-way or 3/2-way, convertible
Type of actuation	Electric
Construction width	32 mm
Standard nominal flow rate (standardised to DIN 1343)	1250 l/min
pneumatic working port	NAMUR port pattern
Operating voltage	24V DC
Operating pressure (MPa)	0.25 MPa ... 1 MPa
Operating pressure (bar)	2.5 bar ... 10 bar
Design	Piston gate valve
Type of reset	Mechanical spring
Approval	c UL us - Recognized (OL)
Certificate issuing authority	DNVGL-TAA000011J
Degree of protection	IP65 IP67 With plug socket To IEC 60529
Exhaust-air function	With flow control option
Sealing principle	Soft
Mounting position	optional
Conforms to standard	VDI/VDE 3845 (NAMUR)
Manual override	Detenting Non-detenting
Type of piloting	Pilot actuated
Pilot air supply	Internal
Flow direction	Non-reversible
Symbol	00991831
lap	Overlap
Signal status display	With accessories
b value	0.4
C value	5.2 l/sbar
Standard nominal flow rate, exhaust return 4->3	110 l/min
Switching time off	48 ms
Switching time on	11 ms
Duty cycle	100%
Characteristic coil data	24 V DC: 3.3 W
Permissible voltage fluctuations	+/- 10 %
Operating medium	Compressed air to ISO 8573-1:2010 [7:4:4]
Note on operating and pilot medium	Lubricated operation possible (in which case lubricated operation will always be required)
Corrosion resistance class CRC	2 - Moderate corrosion stress
LABS (PWIS) conformity	VDMA24364-B2-L
Media temperature	-20 °C ... 60 °C
Ambient temperature	-20 °C ... 60 °C
Product weight	380 g
Electrical connection	Type B Plugs To industry standard (11 mm)
Type of mounting	With through-hole
Breather connection	Not ducted
Pneumatic connection, port 1	G1/4
Pneumatic connection, port 2	NAMUR port pattern
Pneumatic connection, port 3	G1/4
Pneumatic connection, port 4	NAMUR port pattern
Pneumatic connection, port 5	G1/4
Note on materials	RoHS-compliant
Material seals	NBR
Material housing	Wrought aluminium alloy
Material screws	Galvanised steel

Industrial Applications

1. Marine Ballast Water Control System Actuation

Utilizing the valve to pilot single-acting or double-acting quarter-turn actuators on butterfly valves within a ship's ballast water management system. The valve mounts directly to the actuator via the NAMUR interface, minimizing external tubing and potential leakage points.

Problem Solved

Shipbuilders require marine-certified, space-saving pneumatic control valves that can withstand damp, moderately corrosive maritime environments and reliably interface directly with process actuators.

DNVGL-TAA000011J certificationNAMUR port patternIP67 degree of protectionWrought aluminium alloy housing

2. Multi-purpose Actuation in Chemical Process Skids

Deploying the VSNC valve on automated process skids to control fluid routing. Its convertible 5/2-way and 3/2-way functionality allows maintenance teams to standardize on a single part number for both spring-return (single-acting) and double-acting pneumatic actuators.

Problem Solved

Process plant maintenance typically has to stock separate 3/2-way and 5/2-way solenoid valves for different actuator types, increasing inventory costs. This valve reduces inventory complexity while providing reliable electric piloting across wide temperature fluctuations.

5/2-way or 3/2-way convertible24V DC operating voltage-20 °C ... 60 °C ambient temperatureVDI/VDE 3845 (NAMUR) standard

3. Heavy-Duty Sludge Line Valve Actuation in Wastewater Treatment

Integrating the pilot-actuated valve into municipal or industrial wastewater treatment facilities to drive large-diameter pneumatic knife gate valves and butterfly valves used in sludge processing lines.

Problem Solved

Large process actuators in wastewater plants require high pneumatic flow for rapid switching, while the harsh, damp operating environment mandates robust protection against moisture ingress and moderate corrosion.

1250 l/min nominal flow rateIP65 IP67 degree of protection2.5 bar ... 10 bar operating pressureCorrosion resistance class CRC 2