Subsea Electro-Hydraulic & Electro-Optical Hybrid Umbilical Cable (OMB Series — 16OMB4 to 35OMB22)
Custom-engineered subsea electro-hydraulic and electro-optical-hydraulic hybrid umbilical cables (16OMB4, 16OMB6, 16OMB11, 19OMB40, 26OMB38, 27OMB24, 35OMB22 and REF 58361 / 45981 / 56769) combining 70–350 bar thermoplastic hydraulic hoses (3/16" to 1"), 250 V–1 kV power conductors, individually shielded instrumentation pairs/quads, 50/75 Ω video coax and stainless-steel loose-tube optical fibers inside LCP, Vectran or aramid braided hydrolysis-resistant PUR jackets.
Subsea work-class machinery, blowout preventer (BOP) intervention skids, underwater welding habitats and subsea tree valve control systems require a single integrated line that delivers high-pressure hydraulic fluid alongside electrical power, control telemetry and optical or video feedback. The OMB and REF series subsea electro-hydraulic hybrid umbilical cables consolidate 70 bar to 350 bar reinforced thermoplastic hoses (3/16", 3/8", 1/2" and 1" ID) with 250 V to 0.6/1 kV power conductors, shielded twisted pairs, star quads, 50/75 Ω coaxial cores and stainless-steel tube optical fibers.
Depending on operational depth and submerged weight targets, each hybrid bundle is cabled with marine-grade syntactic or polyethylene fillers, wrapped in low-friction PTFE tape, bedded in an inner polyurethane or thermoplastic elastomer sheath and armoured with a high-tenacity LCP (liquid-crystal polymer), Vectran or aramid fiber braid. Tensile breaking strengths span from 1,000 daN (10 kN) on multi-hose deck-to-subsea jumpers up to 6,000–18,000 daN (60–180 kN) on deepwater dynamic winched umbilicals.
Low-density core designs such as 16OMB6 (-140 kg/km in seawater) and 19OMB40 (-377 kg/km in seawater) provide slight positive buoyancy to prevent seabed snagging, while high-power models like 26OMB38 (with 16 multimode fibers in stainless-steel tubes plus 4×10 mm² power) and 35OMB22 (32×2.5 mm² XLPE quads plus 3×1/2" 350 bar hoses) maintain controlled negative buoyancy for vertical deployment.
Specify the model designation, hydraulic hose internal diameter and working pressure, electrical/optical core count, submerged weight target and required length with your RFQ. TEBAOFLEX manufactures subsea electro-hydraulic hybrid umbilical cables from a 50 m minimum order quantity with a lead time of 7–45 working days.
Explore the marine, offshore and underwater cable range for related configurations.
For adjacent high-load subsea work umbilicals and multi-hose diving bundles, compare: Heavy-Duty ROV Main Tether & Seabed Trencher / Plough Umbilical Cable (250 V–3 kV) (250 V to 3 kV work-class ROV main tethers and seabed trencher power-and-fiber umbilicals); Commercial Diver & Diving Bell Umbilical Cable Series (DUR05-ND1 / DUR06-ND / DUR06H-ND & REF 41136) (surface-supplied commercial diver and diving bell gas, hot-water, and communications umbilicals). Verify thermoplastic hose working pressure, collapse resistance, and electrical core insulation rating.
Construction
The representative construction illustrates the 26OMB38 & 16OMB11 Subsea Electro-Optical-Hydraulic Hybrid Umbilical architecture: central and interstitial high-pressure 1/2" thermoplastic hydraulic hoses (140–210 bar working pressure) cabled with 0.6/1 kV Class 5/6 copper power sub-cables, individually foil- or copper-braid-screened signal pairs/quads and stainless-steel loose-tube optical fiber units, low-friction PTFE binder tapes, inner PUR bedding, contra-helical LCP/Vectran fiber strength braid and a heavy-duty orange, yellow or black hydrolysis- and UV-resistant polyurethane outer sheath.
| Component | Material and construction |
|---|---|
| High-pressure hydraulic hoses | Thermoplastic hydraulic hoses (SAE 100R7 / 100R8 / aramid-reinforced grades) in 3/16", 3/8", 1/2" and 1" bores rated for 70 bar, 140 bar, 190 bar, 210 bar, 240 bar or 350 bar continuous working pressure. |
| Power conductors (250 V to 0.6/1 kV) | Flexible stranded bare or tinned copper conductors (IEC 60228 Class 5 or Class 6, 1.0 mm² to 16 mm²) insulated with XLPE, HDPE, polypropylene or polyester elastomer (TPE-E). |
| Shielded signal pairs, quads & video coax | Twisted instrumentation pairs and quads (0.34 mm² to 2.50 mm²) screened with aluminum/polyester tape + tinned-copper drain wire or tinned-copper wire braid, plus optional KX4 (50 Ω) and KX8 (75 Ω) video coaxial cores. |
| Optical fiber units (electro-optical-hydraulic models) | Laser-welded stainless-steel tube optical fiber assemblies (e.g., 4×4×62.5/125 μm multimode or 9/125 μm singlemode fibers) over-sheathed with polyethylene for hydrostatic crush protection. |
| Inner bedding & load-bearing fiber braid | Low-friction PTFE tape wraps and extruded hydrolysis-resistant PUR inner sheath surrounded by a contra-helical double spiral or full braid of LCP, Vectran or aramid yarns (10 kN to 180 kN breaking load). |
| Outer jacket | Heavy-duty ether-based polyurethane (PUR) or halogen-free flame-retardant PUR outer sheath in high-visibility orange, yellow or black, resistant to seawater hydrolysis, UV radiation, hydraulic fluids and abrasion. |
Applications
Select from the OMB and REF hybrid umbilical series according to hydraulic line count, working pressure (70–350 bar), electrical power load and whether integrated fiber-optic or coaxial video telemetry is required.
- Subsea oil and gas tree valve control, blowout preventer (BOP) stack actuation and high-pressure hydraulic manifold control (19OMB40, 27OMB24, 35OMB22, REF 45981, REF 56769).
- Underwater welding machines, subsea diamond wire saws, pipe-cutting clamps and hydraulic tooling skids requiring combined power, control, video coax and 190–210 bar fluid lines (16OMB6, 16OMB11, REF 58361).
- Electro-optical-hydraulic ROV tool deployment, seabed coring drills and remotely operated foundation hammers utilizing stainless-steel-tube optical telemetry alongside 140 bar hydraulic supply (26OMB38).
- Multi-line offshore workboat deck jumpers and oceanographic buoy fluid/data risers combining up to 13 mixed-bore hydraulic lines with shielded twisted-pair communications (16OMB4, REF 31555).
For offshore deck winch integration and towed subsea array cabling, review: Marine & Offshore Cable Solutions for Vessels and Platforms (comprehensive marine and offshore cable solutions for support vessels and platforms); Hybrid Coaxial Power & Signal Tow Cable (hybrid coaxial power and signal tow cables for side-scan sonar and geophysical bodies). Confirm minimum sheave diameter, synthetic braid breaking load, and hydraulic fluid compatibility.
Specifications
| Parameter | Value |
|---|---|
| Rated electrical voltage | 250 V, 300/300 V, 600 V and 0.6/1 kV (up to 1,000 V on 16 mm² welding feeders) |
| Hydraulic working pressure range | 70 bar, 140 bar, 190 bar, 210 bar, 240 bar and 350 bar (burst up to 1,400 bar on 350 bar hoses) |
| Hydraulic hose internal diameters | 3/16", 1/4", 3/8", 1/2" and 1" (1 to 13 hoses per composite umbilical) |
| Tensile breaking strength | 10 kN (1,000 daN) to 180 kN (18,000 daN) via LCP, Vectran or aramid contra-helical braid |
| Nominal overall diameter range | 50.0 mm (26OMB38) to 102.0 mm (16OMB4) |
| Minimum bending radius (static / dynamic) | 5 × to 8 × OD static (250–830 mm); 10 × to 15 × OD dynamic flexing (500–1,250 mm) |
| Operating temperature range | -30 °C to +80 °C (OMB Series); -15 °C to +70/+80 °C (REF Series) |
| Buoyancy & submerged weight options | Slightly buoyant (-377 to -140 kg/km in seawater on 19OMB40/16OMB6) or negatively ballasted (53 to 379 kg/km) |
| Commercial supply terms | Minimum order quantity 50 m; manufacturing lead time 7–45 working days |
| Model designation | Electrical & optical core configuration | Hydraulic hoses & max. working pressure | Voltage & max. DC resistance (@ 20 °C) | Reinforcement & breaking load | Nominal OD (mm) | Min. bend radius static / dynamic (mm) | Weight in air / seawater (kg/km) |
|---|---|---|---|---|---|---|---|
| 16OMB4 | 3 × [4×16 AWG + 4×2×22 AWG STP (100 Ω, 55 pF/m)] sub-cables (OD 13.0 mm) | 3×1" + 1×1/2" + 3×3/8" + 6×3/16" (13 hoses) | 600 V; 16 AWG <14.60 Ω/km, 22 AWG <56.75 Ω/km | TPR inner + Orange PUR jacket; 10 kN | 102.00 | 520 / 1,000 | 5,840 / — |
| 16OMB6 | 4×2.50 mm² PE power + 5×2×0.34 mm² PP foil-shielded pairs | 2 × 1/2" hydraulic hoses (210 bar) | 600 V / 250 V; 2.5² <7.98 Ω/km, 0.34² <56.75 Ω/km | LCP fiber braid; ≥10,000 daN (100 kN) | 56.65 | 354 / 600 | 2,450 / -140 |
| 16OMB11 | 4×2.50 mm² HDPE power + 5×2×0.50 mm² PP foil-shielded pairs (TPE-E jacket) | 2 × 1/2" hydraulic hoses (210 bar) | 600 V / 250 V; 2.5² <7.98 Ω/km, 0.50² <38.40 Ω/km | LCP fiber braid; 10,000 kg (98 kN) | 59.15 | 300 / 600 | 2,670 / — |
| 19OMB40 | 4×6.00 mm² Class 6 PP power + 7×2×0.75 mm² Class 6 PP shielded pairs | 1 × 1" hydraulic hose (70 bar) | 0.6/1 kV & 300/300 V; 6² <3.30 Ω/km, 0.75² <26.0 Ω/km | Double-spiral LCP yarn; 6,000 kg (SWL 1,500 kg) | 54.00 | 270 / 540 | 1,973 / -377 (-317 fresh) |
| 26OMB38 | 4×10.0 mm² + 4×1.0 mm² (braid-shielded) + 4×4×62.5/125 MM fibers in SS tubes | 2 × 1/2" hydraulic hoses (140 bar) | 0.6/1 kV; 10² <1.91 Ω/km, 1² <19.5 Ω/km; FO <3.5/1.5 dB/km | LCP yarn braid + HFFR PUR; 30 kN | 50.00 | 250 / 500 | 2,109 / 95 (146 fresh) |
| 27OMB24 | 6×4×2.50 mm² (24 cores) Class 5 XLPE quads in PUR sub-sheath | 3 × 3/8" hydraulic hoses (350 bar) | 0.6/1 kV; 2.50 mm² <7.98 Ω/km | Double-spiral contra-helical LCP; 9,000 kg (SWL 2,200 kg) | 60.70 | 305 / 610 | 3,262 / 293 (368 fresh) |
| 35OMB22 (Empty) | 8×4×2.50 mm² (32 cores) Class 5 XLPE quads in PUR sub-sheath | 3 × 1/2" hydraulic hoses (350 bar, empty) | 0.6/1 kV; 2.50 mm² <7.98 Ω/km | Double-spiral contra-helical Vectran; 9,000 kg (SWL 2,200 kg) | 73.00 | 365 / 730 | 4,347 / 53 (162 fresh) |
| 35OMB22 (Oil-Filled) | 8×4×2.50 mm² (32 cores) Class 5 XLPE quads in PUR sub-sheath | 3 × 1/2" hydraulic hoses (350 bar, oil s.g. 0.80) | 0.6/1 kV; 2.50 mm² <7.98 Ω/km | Double-spiral contra-helical Vectran; 9,000 kg (SWL 2,200 kg) | 73.00 | 365 / 730 | 4,673 / 379 (487 fresh) |
| REF 58361 | 2×16 mm² + 28×1.5 mm² + 14×2×1.5 mm² spun-shielded pairs + 1×KX4 (50 Ω) + 1×KX8 (75 Ω) | 2 × 1/2" hydraulic hoses (190 bar) | 1,000 V (16²) ≤1.35 Ω/km; 250 V (1.5²) ≤15 Ω/km | Aramid fiber braid + PUR sheath; 18,000 daN | 70.0 ± 1.0 | 560 / 900 | 5,150 / — |
| REF 45981 | 4×4×2.5 mm² (16 cores) TPE-E insulated, tinned-copper braid-shielded quads | 4 × 1/2" SAE 100R8 hoses (240 bar) | 0.6/1 kV; 2.5 mm² ≤9.6 Ω/km | Aramid fiber braid + PUR sheath; 18,000 daN | 67.0 ± 1.0 | 550 / 1,000 | 3,220 / — |
| REF 56769 | 4×1.5 mm² + 12×2×1.0 mm² braid-shielded pairs + 10×2×1.0 mm² foil-shielded pairs | 12 × 3/8" hydraulic control hoses | 600 V; 1.0 mm² ≤21.5 Ω/km, 1.5 mm² ≤14.6 Ω/km | Aramid fiber braid + PUR sheath; 9,000 daN | 83.5 ± 2.0 | 830 / — | 5,360 / — |
| REF 57330 | Copper ballast fillers (companion valve-actuation bundle to REF 56769) | 8 × 1/2" SAE 100R8 hoses (240 bar) | Ballasted hydraulic actuation companion line | Aramid fiber braid + PUR sheath; 9,000 daN | 84.0 ± 2.0 | 675 / 1,250 | Ballasted negative |
| REF 31555 | Subsea buoy power & signal cores around central aramid core | 4 × PVC fluid/sampling hoses (15 bar work / 50 bar max) | Oceanographic buoy power/telemetry rating | Central aramid core + PVC/PUR sheath; 5,000 daN | 63.0 ± 1.0 | 250 / 620 | 3,640 / 340 (water-filled) |
| 4OMB23 (Companion) | Companion 4-hose hydraulic umbilical bundle (split-winch option) | 4 × 1/2" hoses (350 bar work / 1,400 bar burst) | Fluid-only companion bundle (-30 to +80 °C) | LCP fiber braid + Orange PUR sheath; 1,250 kg | 62.00 | 310 / 620 | 2,536 / -561 (-483 fresh) |
| 4OMB13 (Companion) | Companion 4-hose Vectran-reinforced hydraulic umbilical bundle | 4 × 3/8" hydraulic hoses (PTFE wrapped) | Fluid-only companion bundle (-30 to +80 °C) | Vectran fiber braid + Black PUR; 9,000 daN (SWL 2,250 daN) | 56.50 | 565 / 850 | 2,260 / -270 (-130 oil-filled) |
| 10OMB12 (Companion) | Companion 10-hose Vectran-reinforced hydraulic manifold bundle | 10 × 3/8" hydraulic hoses in individual PUR sheaths | Fluid-only companion bundle (-30 to +80 °C) | Vectran fiber braid + Black PUR; 9,000 daN (SWL 2,250 daN) | 83.00 | 830 / 1,250 | 4,820 / -730 (-340 oil-filled) |
All conductor DC resistances, hydraulic working pressures, breaking loads and air/seawater linear weights are taken directly from the engineering specifications for 16OMB4, 16OMB6, 16OMB11, 19OMB40, 26OMB38, 27OMB24, 35OMB22 and REF 58361 / 45981 / 56769 / 57330 / 31555.
On 35OMB22, submerged weight is stated both with empty hydraulic hoses (53 kg/km in seawater of s.g. 1.026) and with hoses filled with hydraulic oil of specific gravity 0.80 (379 kg/km in seawater).
Companion pure-hydraulic hose bundles (4OMB13, 4OMB23 and 10OMB12) are listed at the bottom of the specification table for split-reel systems where electrical and hydraulic lines are deployed on separate winches.
Standards
| Standard or specification | Application |
|---|---|
| IEC 60228 | Class 5 flexible and Class 6 extra-flexible stranded bare and tinned copper conductors for dynamic umbilical cores. |
| ISO 13628-5 / API Spec 17E (design reference) | Subsea production control umbilical design principles for combined electrical, optical and thermoplastic hydraulic hose bundles. |
| SAE J517 (100R7 / 100R8) | Dimensional and pressure performance basis for high-pressure thermoplastic hydraulic hoses integrated into subsea umbilicals. |
| IEC 60754-1 & IEC 60332-1-2 | Halogen-free and flame-retardant polyurethane inner/outer jacket compliance on HFFR umbilical grades (19OMB40, 26OMB38). |
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