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Alternative Gray Finish (C5-M Standard)
S Series: Tubing-Free Submersible Hydraulic Actuator
A maintenance-friendly solution designed for 50m submersion and ballast tank automation.
Integrated Reliability for Submerged Use
The S Series features a patented Internal Oil Circuit design, effectively eliminating the risks associated with external hydraulic piping. As a high-performance submersible hydraulic actuator, it is the ideal choice for ballast tanks and vessel valve hydraulic actuator systems where accessibility for maintenance is limited and environmental integrity is paramount.
Design Standard: BS EN 15714-4: 2025
Architecture: Patented Tubing-Free Internal Oil Circuit
Core Tech: Dual-Stage Sealing & Monoblock Forged Body
Torque Output: 100 Nm – 2,700 Nm
Response Time: 0.5s – 1.0s
Rotation: 90° ± 3°
Working Pressure: 135 Bar
Testing: 100% Factory Pressure Tested equivalent to 50m submersion depth
Ingress Protection: IP68 Rating (Designed for 50m submersion)
Temperature: -20°C to +80°C
Corrosion Class: ISO 12944 C5-M
Feedback: Optional PFB Modules
Engineering Insight
The S-Series is defined by its Monoblock Cylinder—a structural response to the vulnerabilities of conventional hydraulic units. By prioritizing Material Continuity within the forged cylinder and Internalized Fluidics, we provide a highly reliable, maintenance-friendly power unit for the most demanding marine assets.
The "Clean Zone" Protection: By utilizing the thickness of the cylinder’s reinforced ribs, we physically distance internal seal interfaces from external surface treatments. This ensures a "Clean Zone" within the cylinder during shot blasting and coating, preserving seal integrity and long-term operational reliability.
Internal Oil Circuit
No external tubing. Significantly reduces leak points, installation complexity, and potential mechanical damage.
50m Depth Rating
Specifically engineered and seal-tested for continuous, reliable operation in submerged marine environments.
Marine-Grade Protection
Standard C5-M coating for high-salinity environments. Optional IM3 protection available for permanent immersion in ballast water.
Monoblock Forged Cylinder Design
Our Monoblock Forged Cylinder integrates oil circuits internally, creating a Tubing-Free design. A key engineering highlight is the Safety Distance between the seal interfaces and the exterior surface. This ensures that critical internal components remain in a "Clean Zone," completely protected from grit blasting dust and coating contamination during the manufacturing process.
Internal view of the S-Series monoblock forged cylinder, showing precision machined surfaces and integrated oil ports.
Stage 1: 5-Bar Seal Integrity Test
Passing the seal integrity test is a mandatory prerequisite for each critical production stage. This video shows the Initial 5-bar (0.5 MPa) Submerged Test after assembly. This is the first verification step within our quality protocol to ensure the 50m submersion rating.
Configuration: Integrated S Series submersible valve packages showing D771X-S butterfly valve (left side) and Q741F-S ball valve (right side) with C95800 PFB modules and C5-M coating.
Native Integration: S Series Submersible Packages
Maintenance-free actuation solutions engineered for ballast tanks and 50m submerged environments.
Strategic Material Selection: A high-performance hybrid of C95800 Nickel-Aluminum Bronze (PFB module), 316L Stainless Steel (Ball Valve), and C5-M Marine Coating (S series Actuator & Butterfly valve).
Submersion Technology: Features an Internal Oil Circuit architecture, eliminating external tubing to ensure zero-leakage inside ballast tanks.
Actuation Type: Available in Single-acting (Spring Return) or Double-acting configurations.
System Integrity: IP68 rated and system-verified for 50 Meters depth. Every integrated package undergoes a standardized 5.0 bar functional and signal integrity test before dispatch.
Flexible Delivery & Commissioning:
Factory-Sealed Packages: For complete assemblies (D771X-S / Q741F-S), units are delivered permanently sealed and pressure-verified, ready for immediate installation.
Commissioning-Ready Modules: For standalone actuator + PFB units, interfaces are precision-machined for compatibility with standard high-performance marine sealants, allowing for easy local sealing after on-site calibration.
Feature
S-Series Specification
Working Depth
50-Meter Equivalent (Verified)
Internal Circuits
Tubing-Free (No External Pipes)
Material
High-Strength Steel + ISO 12944 C5-M
Sealing
Parker / Trelleborg Systems
Testing
100% API 598 Compliant
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