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

Technical Overview

The VSNC-FC-M52-MD-G14-F8 is a professional-grade piston gate solenoid valve designed for pilot actuation in industrial automation. This versatile component features a convertible 5/2-way or 3/2-way valve function and adheres to the NAMUR port pattern (VDI/VDE 3845) for seamless integration with pneumatic actuators. Constructed with a wrought aluminium alloy housing and NBR seals, it delivers a standard nominal flow rate of 1250 l/min across an operating pressure range of 2.5 to 10 bar. The unit includes both detenting and non-detenting manual override options and utilizes an internal pilot air supply for efficient performance in temperatures between -20 and 60 °C.

Key Features

Convertible 5/2-way or 3/2-way valve function
Electric actuation with pilot control
NAMUR port pattern compliance (VDI/VDE 3845)
Piston gate valve design for durability
Mechanical spring reset mechanism
Internal pilot air supply
Dual-mode manual override (Detenting and Non-detenting)
RoHS-compliant materials and soft sealing principle

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	Via solenoid coil, must be ordered separately
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
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	See solenoid coil, to be ordered separately
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	335 g
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. Chemical Processing Quarter-Turn Actuator Control

Directly mounted onto NAMUR-compliant pneumatic quarter-turn actuators to automate ball and butterfly valves in chemical transfer lines.

Problem Solved

Protects the spring chamber of single-acting actuators from corrosive ambient air. By configuring the valve as a 3/2-way valve, the built-in exhaust return routes clean compressed air into the spring chamber, preventing atmospheric contamination.

NAMUR port pattern3/2-way convertibleExhaust return 4->3CRC 2 - Moderate corrosion stressWrought aluminium alloy

2. Water Treatment Plant High-Flow Valve Automation

Piloting large double-acting process valves in municipal water and wastewater treatment facilities to control fluid distribution.

Problem Solved

Provides rapid and reliable switching of large pneumatic actuators using its high 1250 l/min nominal flow rate. The detenting and non-detenting manual override allows operators to manually stroke the valves during power outages or maintenance without needing electrical actuation.

1250 l/min flow rate5/2-way valve functionManual overrideSwitching time on 11 msPiston gate valve

3. Utility Line Part Standardization in Manufacturing

Controlling utility steam, air, and water lines using pneumatic process valves across a manufacturing plant where space is limited.

Problem Solved

Reduces the need to stock multiple valve types for different actuators. The 5/2-way or 3/2-way convertible function fits both single and double-acting cylinders. Additionally, the exhaust-air function with flow control option allows precise speed tuning to prevent water hammer in piping systems.

5/2-way or 3/2-way convertibleExhaust-air function with flow control32 mm construction widthOperating pressure 2.5 bar ... 10 barPilot actuated