OMT Bladder Accumulators

OMT Bladder Accumulators

Repairable design comprising a forged or welded carbon steel / stainless steel body, a replaceable bladder, a nitrogen valve connection, and an oil valve connection with seals.

Key technical specifications

• Volumes: Up to 500 L
• Max working pressure: Up to 470 bar @ 120°C (up to 10,000 psi)
• Body material: Carbon steel or stainless steel (AISI 316/L)
• Temperature range: Down to MDMT -45°C
• Mounting: Vertical, oil side at the bottom (recommended)
• Finish: Sandblasted with RAL 5005 primer; special/offshore coatings on request
• Nitrogen connection: 
  5/8" M10x1,5

Standard carbon steel range (CE / 2014/68/EU-PED)

• Volumes: 1–50 L
• Pressure: 350 / 355 / 380 bar
• Temperature: -45°C to +120°C

ASME U-Stamp range

• Volumes: 10–50 L
• Pressure: 3000 / 4000 / 6666 / 10,000 psi
• Temperature: -40°C to +93°C

RINA range

• Volumes: 1–50 L
• Pressure: 340 bar
• Temperature: -45°C to +120°C

Stainless steel (AISI 316/L), ASME VIII Div I U-Stamp

• Volumes: 10–50 L (to 575 L on request)
• Pressure: 60 bar
• Temperature: -40°C to +150°C

Bladder elastomer options

• Standard (NBR/Perbunan): -15 to +90°C
• Low temperature: -28 to +80°C
• Very low temperature: -32 to +115°C
• Butyl: -15 to +120°C
• Viton: -20 to +140°C

We stock the OMT bladder accumulator range and back it with decades of NZ hydraulics expertise — from selecting the right volume, pressure rating and elastomer to sourcing spares and replacement bladders. Talk to our team about the right configuration for your circuit.