Wandfluh Type SDSPM22 Solenoid Poppet Valve | SDSPM22-AB | SDSPM22-BA | 24V DC G24 | 350 Bar Cartridge Valve

SDSPM22 Series Direct Operated Solenoid Poppet Valves

Product Overview: The SDSPM22 series is a range of industrial-grade, direct-operated solenoid directional poppet valves featuring a screw-in cartridge design. Unlike traditional spool valves, the poppet architecture utilizes metal-to-metal seating to achieve leak-tight performance in one or both directions. This makes it the ideal choice for load holding, cylinder locking, and safety-critical hydraulic circuits. As a direct-operated valve, it offers ultra-fast response times and maintains reliable switching performance even at maximum pressures up to 350 bar.

Featured models include: SDSPM22-AB-G24/KD35 (Normally Closed/Specific Logic) and SDSPM22-BA-G24/KD35 (Normally Open/Specific Logic).

Key Technical Advantages:

• Zero-Leakage Sealing: The poppet design eliminates the internal bypass leakage inherent in spool valves, ensuring secure pressure maintenance.

• High-Pressure Direct Actuation: The KD35 specification guarantees reliable opening and closing at pressures up to 35 MPa without requiring pilot pressure.

• Industrial G24 Solenoids: Optimized for 24V DC power systems, providing superior thermal stability and 100% ED (Continuous Duty) capability.

• Compact M22 Interface: Standard M22x1.5 threading allows for seamless integration into compact hydraulic manifolds and custom valve blocks.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • SDSPM22-AB-G24/KD35: 2-way 2-position, AB logic configuration, 24V DC supply, KD35 high-pressure rating.

  • SDSPM22-BA-G24/KD35: 2-way 2-position, BA logic configuration, tailored for alternative initial flow states.

• Core Technical Specs:

  • Max Operating Pressure: Rated up to 350 bar (35 MPa).

  • Nominal Flow: Approximately 12 – 20 L/min (depending on pressure drop).

  • Cavity Thread: M22 x 1.5.

  • Protection Class: Rated up to IP65/67 with appropriate electrical connectors.