NOV (Servi) Air-Driven HPU – Specification

General

• Manufacturer: Servi Motion Control AS (NOV)
• Part Number: 455444
• Serial Number: 1007565
• Country of Origin: Norway
• Type: Air-Driven Hydraulic Power Unit (HPU)

Hydraulic System

• Pump Type: Air-driven reciprocating hydraulic pump
• Max Operating Pressure: up to 5,000 psi (typical for Servi units)
• Normal Operating Pressure Range: 3,000 – 5,000 psi
• Hydraulic Fluid:
  • Mineral oil or water-glycol compatible
• Reservoir: Integrated hydraulic fluid tank
• Filtration: Inline hydraulic filters (pressure/return)

Pneumatic (Drive) System

• Drive Medium: Instrument air
• Air Supply Pressure: 80 – 120 psi
• Air Consumption: Demand-based (dependent on hydraulic load)
• Function: Drives hydraulic pump (no electric motor required)

Accumulator System

• Type: Bladder or piston accumulators
• Function:
  • Stores hydraulic energy
  • Provides emergency / backup actuation
• Pre-charge Medium: Nitrogen

Performance

• Pressure Output: up to 5,000 psi
• Flow Rate: Low to moderate (typical of air-driven HPUs)
• Duty Cycle: Intermittent / on-demand
• Response Time: Moderate (slower than electric-driven units)