Walter Voss — Water Hydraulic Systems, Power Units & Directional Seat Valves

Global supply of specialized water hydraulic systems and high-pressure fluid technology by Walter Voss Fluidtechnik GmbH (Germany). Engineered hydraulic power units 10–320 bar, zero-leakage directional seat valves DN 3 to DN 40, marine cylinders, and subsea compacting modules for industrial, mining, and offshore applications from SpareX.

High-Pressure Hydraulic Power Units Walter Voss

Walter Voss hydraulic power units are built to customer specifications with operating pressures from 10 to 320 bar and flow rates of 2.5 to 120 l/min. Stations feature 0.75 to 45 kW electric drives for clear water systems. Modular manifold design simplifies routine servicing.

Nominal system pressure rating spanning 10 to 320 bar for industrial presses
Electric drive power envelope configured from 0.75 to 45 kW for continuous duty
Discharge flow capacity calibrated from 2.5 to 120 l/min for hydraulic circuits
Replaceable fluid filter cartridges, shaft seal rings, and check valve modules

Directional Seat Valves Walter Voss DN 3 to DN 12

Directional seat valves DN 3 to DN 12 provide zero-leakage switching in water hydraulic systems. Series 2/2, 3/2, 4/2, and 4/3 come in subplate and screw-in styles. Conical and ball poppet seats eliminate internal bypass across electrical and mechanical roller setups.

Nominal passage sizes engineered from DN 3 to DN 12 for high water velocities
Precision conical and ball poppet seating mechanisms ensuring tight shutoff
Actuation variants with wet-armature solenoids, roller levers, and push pins
Replaceable seal rings, actuating solenoid coils, and stainless return springs

Cartridge Pressure Relief Valves Walter Voss M20x1.5

Walter Voss cartridge valves for cavity sizes M20x1.5 and M28x1.5 include direct-operated DN4, DN6, DN10, and DN20 units. They shield water circuits from pressure spikes and balance line head. The direct poppet design resists cavitation wear during aggressive duty.

Direct-operated cartridge sizes calibrated across DN4, DN6, DN10, and DN20
Standard metric installation threads fitting cavities M20x1.5 and M28x1.5
Function modes including relief, flow throttle, and inline check modules
Calibrated pressure setting springs, adjusting screws, and sealing packs

Pilot Operated Pressure Valves Walter Voss up to 350 bar

Walter Voss pilot operated valves in sizes DN16, DN25, DN32, and DN40 handle working pressures up to 350 bar. They provide system relief and pump unloading with pilot stages. Rigid steel bodies maintain stable performance under heavy pressure fluctuations in hydraulic drives.

Nominal passage sizes engineered across DN16, DN25, DN32, and DN40 dimensions
Maximum operating pressure rating up to 350 bar for water hydraulic loops
Subplate mounting patterns and manifold block integration for piping links
Pilot control stages, internal damping orifices, and dynamic rod packings

Marine Hydraulic Cylinders and CuNi Manifolds Walter Voss

Specialized Walter Voss hydraulic cylinders and control manifolds are built for marine and offshore platforms. Bodies and internal parts use CuNi alloys, special brass, and stainless steels. Assemblies are non-magnetic and withstand aggressive seawater exposure without degradation.

Corrosion-proof alloys including copper-nickel CuNi, brass, and stainless steel
Non-magnetic metallurgy and immunity against saline electrolytic oxidation
Tailored differential and single-acting cylinder geometry for ship systems
Marine-grade wiper seals, composite guide rings, and plated piston rods

Underwater Cutting and Pressing Systems Walter Voss

The Walter Voss underwater compaction unit runs at 210 bar on demineralized water, producing 900 kN press and shear forces with 54 kW power. Oceanographic tool platforms operate at depths down to 2,000 m and incorporate valves featuring 0.8 mm ceramic poppet sealing elements.

Subsea pressing and shear cutting power generated up to 900 kN force level
Working loop pressure of 210 bar using pure demineralized water medium
Ocean research instrumentation carriers rated for submergence to 2,000 m
Ceramic valve poppets DN 0.8 mm, heavy-duty shear blades, and flex hoses

Engineering Principles of Walter Voss Industrial Water Hydraulics

Walter Voss water hydraulic power units are engineered for industrial processes where mineral oil cannot be used due to fire safety, environmental standards, or contamination risks.

Water features low viscosity and vulnerability to cavitation, requiring refined manufacturing tolerances and corrosion-proof metallurgy.

Walter Voss utilizes austenitic stainless alloys, specialized brass, and copper-nickel alloys to eliminate crevice corrosion during continuous exposure to demineralized water and seawater, providing dependable power transfer across pressures up to 320 bar.

Directional Poppet Valve Technology and Leak-Free Circuit Control

Spool valves handling water media suffer from rapid wire-drawing erosion across metering lands because water lacks natural lubricity. Walter Voss directional valves in sizes DN 3 to DN 12 employ conical and ball poppet seating geometry that delivers complete drop-tight shutoff.

Direct-operated 2/2, 3/2, 4/2, and 4/3 configurations utilize wet-armature solenoids or mechanical roller levers. Fast shifting response and resilience against hydraulic pressure transients make these seat valves suitable for demanding forming presses and steel rolling mills.

Screw-In Cartridge Valves for Standardized M20x1.5 Cavities

To streamline multi-station manifold blocks and minimize external hydraulic piping, Walter Voss produces screw-in pressure control cartridges for standard M20x1.5 and M28x1.5 cavities.

Direct-operated units in sizes DN4, DN6, DN10, and DN20 incorporate pressure relief, throttling, and check valve functions within compact replaceable bodies. Threaded mounting allows swift on-site maintenance without unbolting primary distribution blocks.

Calibrated stainless spring assemblies sustain setpoint stability amid turbulent line pulsations.

High-Flow Pilot Operated Relief and Unloading Valves up to 350 bar

High-capacity water hydraulic systems require stable relief and unloading control without sluggish hunting. Walter Voss pilot operated valves in port dimensions DN16, DN25, DN32, and DN40 handle flow volumes up to 350 bar operating pressure.

Two-stage hydraulic designs couple direct-acting pilot cartridges with heavy-duty main poppets. The rigid steel body provides structural damping and handles violent pressure reversals encountered during emergency shutdowns or press cycle decompaction.

Marine Hydraulic Cylinders and Seawater Resistant CuNi Alloy Manifolds

Marine and offshore equipment manufactured by Walter Voss operates under continuous immersion in raw seawater and saline atmospheres. Hydraulic cylinders and control blocks are machined from CuNi copper-nickel alloys, marine brass, and duplex stainless grades.

The metallurgy exhibits non-magnetic properties and complete immunity against saline electrochemical pitting. Assemblies feature specialized polymeric guide bushings, rod wipers, and heavy chrome plating tailored for subsea machinery.

Specialized Subsea Compaction Machinery and Oceanographic Carriers

For nuclear decommission tasks and deep-sea marine exploration, Walter Voss builds custom underwater hydraulic machinery.

The portable subsea cutting and pressing unit operates inside spent-fuel pools at 210 bar using pure demineralized water, generating 900 kN compaction and shear force with 54 kW electric input.

Oceanographic tool carrier platforms descend to depths of 2,000 m. Variable ballast chambers are regulated through fast-acting DN 0.8 mm ceramic poppet valves that prevent electrolytic degradation.

Walter Voss and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Walter Voss and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.