1. Product Introduction
WTYZ Series Deepwater Hydraulic Power Station
Designed specifically for water conservancy and hydropower projects150-meter-class underwater hydraulic power sourceIt is compatible with hydraulic automatic grab beams, cleaning machines and grabs. The oil tank, oil pump and valve group are integrated into the pressure-resistant tank body. The 7MPa water pressure protection is achieved through a 27SiMn alloy steel /A304 stainless steel (wall thickness 8-10mm) structure, providing stable power for 5t-600t lifting point equipment.
2. Main functions
Precise power control in deep water environments
- Dual-mode hydraulic output
→ Beam grab controlUnidirectional/bidirectional hydraulic pump output (flow rate ≤14L/min, pressure ≤2.5MPa)
→ Decontamination operationHigh-flow hydraulic drive (16L min, pressure adjustable to 12MPa)
- Dynamic sealing management
→ Oil pipe joint +Aviation plugDouble-seal scheme
- Wide-area environment adaptation
Low-temperature hydraulic oil ranging from -30℃ to 60℃ ensures extremely cold start-up
3. Scope of application
Comprehensive coverage of harsh working conditions
| Application equipment |
Adapt to scenarios |
Key parameters |
| Hydraulic automatic beam grasping |
Hoisting of hydropower station gates (water depth <150m) |
Flow rate ≤14L/min, pressure 2.5MPa |
| Hydraulic cleaning machine/grab bucket |
River garbage clearance |
Flow rate >16L/min, pressure 2.5-12MPa |
| Structural form |
Typical scenarios |
Advantage |
| Tank-shaped/circular pumping station |
Space-constrained installation environment |
Compact integrated design |
| Split-type pumping station |
The demand for power separation of large grab buckets |
Modular quick disassembly and assembly |
4. Core advantages
The four irreplaceable barriers of deepwater engineering
✅ high-pressure-resistant structure
- 8-10mm thick alloy steel/stainless steel cabin (7MPa designed water pressure)
- The inner and outer anti-corrosion coating is stable and reliable
✅ Component configuration
- Rexroth/Parker solenoid valves and joint venture brand gear pumps (1.5-2.2KW motors)
✅ intelligent seal verification
- The first 30-minute deep dive insulation test
✅ reliable operation throughout the full temperature range
- 32 # low-temperature hydraulic oil is supportedIce-breaking start at 30℃
5. Technical parameters
Core performance indicators
- Pressure-resistant shell27SiMn/A304 stainless steelThe wall thickness is 8 to 10mm
- Volume specification60L/80L/100L (Customized up to 300L)
- Hydraulic system:
→ Working pressure: 2.5MPa for the grab beam; 2.5-12MPa for the cleaning machine (adjustable)
Flow range: 20/23/30L/min
- Power unit:
Motor power: 1.5KW/2.2KW (AC380V)
→ Oil pipe interfaceM24×1.5 threaded seal
- Environmental tolerance:
Temperature: -30℃ ~ +60℃
Water depth:≤150m(Design pressure: 7MPa
6. Option Guidance

Step 1: Confirm the type of equipment
▶ Hydraulic grab beamSelection path:
- Pin shaft diameter < 200mm →Flow rate: 10L/min
- Structural forms: can-shaped/circular/square/split type
- Type of hydraulic pumpA One-way (standard configuration) B Two-way (customization required)
▶ Hydraulic cleaning machine/grab bucketSelection path:
- Mandatory choiceFlow rate > 16L/minPressure: 3.5-12MPa
- Structural form: Circular/split type
- Control cableIt is mandatory to use waterproof socket type
Step 2: Selection of the sealing solution
- Tubing pair jointEconomical solution
- Aviation plugPlease indicate the model of the aviation plug
Step 3: Extreme environmental requirements
- Areas with temperatures below -10℃ →Mandatory use of aviation hydraulic oil
- Seawater conditionsSpecify A304 stainless steel material
Customized promptEquipment drawings, working water depth and pressure curve graphs need to be provided
Appendix: Iron Rules for Safe Operation
- Sealing bolts must not be tightened a second timeThe failure risk increases by 300%
- It must be executed before the first useA 30-minute pressure-holding test in 150-meter deep water
- Oil replacement cycleOr 2,000 hours per year(First come, first served)