Hydac Valve Stacking System

Hydac Valve Stacking System
HYDAC’s valve stacking systems of series L and ML are modular controls for oil-hydraulic systems in parallel switching. These systems are ideal for:

Controlling small-volume consumers

Handling pressure-/force-holding tasks

Each control system is made up of function modules (directional poppet valves, pressure valves, shut-off valves, pressure switches) that can be flexibly combined on a base module according to your specific control sequence.

Valve Stacking System L
Key Features:

High flexibility in planning and construction

Compact design with high power density

Leak-proof due to short, rigid connections

Easy retrofitting with supplementary modules

Technical Specifications:

Delivery rate: up to 12 l/min

Operating pressure: max. 500 bar

Voltages: 24 V and 230 V

Protection class: IP65 (DIN EN 60034-5)

Operating fluid: Hydraulic oil (DIN 51524, Parts 1 & 2)

Fluid temperature range: -20°C to +80°C

Ambient temperature range: -20°C to +40°C

Viscosity range: 10–380 mm²/s (recommended)

Filtration requirement: ISO 4406 Class 21/19/16

Weight: 0.2–2.2 kg per module

Return quantity: up to 15 l/min

Compatible with: CO1, DC1, CA, and HP power units

More details: See brochure 5.304.2

Valve Stacking System ML
Key Features:

High flexibility in planning and construction

Compact dimensions with excellent performance

Leakage security through short, rigid connections

Retroactive expandability with additional modules

Technical Specifications:

Delivery rate: 12–20 l/min

Operating pressure: max. 350 bar

Voltages: 24 V and 230 V

Protection class: IP65 (DIN 60034-5)

Operating fluid: Hydraulic oil (DIN 51524, Parts 1 & 2)

Fluid temperature range: -20°C to +80°C

Ambient temperature range: -20°C to +40°C

Viscosity range: 10–380 mm²/s (recommended)

Filtration requirement: ISO 4406 Class 21/19/16

Weight: 0.5–6.4 kg depending on module

Return quantity: up to 20 l/min

Compatible with: DC1, CO1, CA, and HP power units

More details: See brochure 5.308.0