Solenoid Valve 1/4", 5/2-Way, Bistable + Connector + Coil | Aignep

The AIGNEP 5/2-Way 1/4" BSPP Bistable Solenoid Valve — Kit with Dual Coil 24 VDC and Connector is a pneumatic directional valve with dual electrical pilotage that maintains its last switching position without requiring a continuous signal, functioning as a pneumatic memory in automation systems. Unlike monostable valves (which return by spring when power is cut), this bistable valve remains stable in its current position until a new impulse is received at the opposite end, ensuring functional safety in the event of signal or power loss. It includes a dual 24 VDC coil and connector. Anodized aluminum body, NBR seals. Operates up to 10 bar. Manufactured in Italy by AIGNEP.

Bistable vs. Monostable — When to use each?

• Bistable (this valve): Maintains position without continuous signal. Ideal when the actuator needs to remain in position when power is cut or when low energy consumption is required.
• Monostable (01VS, 01VS43NC02): Returns to original position by spring when power is cut. Ideal when a safe return to the resting position is required in case of failure.

Bistable Operation Principle

• Pneumatic memory: Maintains position without continuous signal — only requires an impulse to change state.
• Dual coil: One coil for each switching direction (end A and end B).
• Spool type: Precise and repeatable switching with low internal friction.
• Low energy consumption: Does not require continuous energy to maintain position.

Applications

• Control of double-acting pneumatic cylinders where position must be maintained in the event of a power outage.
• Pneumatic clamping systems that must hold the part without continuous consumption.
• Automated machinery and production lines with functional safety requirements.
• Industrial pneumatic manifolds and circuits controlled by 24 VDC PLCs.
• Processes where the actuator must remain in position when the signal is interrupted.

Technical Specifications

• Type: Bistable solenoid valve with dual electrical pilotage.
• Configuration: 5/2-way, 2-position bistable.
• Pneumatic connection: BSPP 1/4".
• Power supply: 24 VDC — 3 W (dual coil).
• Working pressure: Up to 10 bar.
• Body: High-strength anodized aluminum.
• Seals: NBR.
• Kit contents: Bistable solenoid valve + Dual coil + Connector.
• Country of manufacture: Italy.
• Brand: Aignep.

Equivalent to

• SMC VT307-5G1-02 (5/2 bistable, dual coil, G1/4")
• Camozzi Series 358, 5/2 bistable, 1/4"
• Bürkert Type 6213, 5/2 bistable G1/4"
• ASCO Numatics Series 327/328, 5/2 bistable G1/4"
• Parker/Pneutronics Series B, 5/2 bistable G1/4"
• Univer Series BE/AC, 5/2 bistable G1/4"

Other Common Names

This product is also known as: 1/4" pneumatic bistable solenoid valve, 5/2-way double pilot valve, pneumatic memory valve, 24VDC dual coil solenoid valve, bistable solenoid valve 5/2 pneumatic, double solenoid valve 1/4" pneumatic, memory valve pneumatic 5/2 or AIGNEP bistable solenoid valve 24VDC.