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Bladder accumulators are a very versatile and cost effective option for numerous types of hydraulic systems involving energy storage, shock absorption, pulsation dampening, leakage loss compensation and volume compensation. They are a first choice for a great variety of general applications and have the widest range of standard sizes and model options. Bladder accumulators also have very quick shock response characteristics in sizes much larger than diaphragm accumulators.
Unit of Measure

Specifications

Type

 N/A Bladder Accumulator

Model Code Description

 N/A SB330-54A1/115S1-248C

Fluid Port Connection

 N/A SAE (ANSI B1.1)

Weight

 N/A 150 kg330 lb

Shell Material

 N/A Carbon Steel

Series

 N/A SB330

Connection Size

 N/A 1 7/8-12 UN (SAE-24)

Repairable

 N/A Yes

Design

 N/A Standard (Bottom Repairable)

Line Connection

 N/A Threaded

Gas Port

 N/A Standard Model, HYDAC Gas Valve Version 4 (8V1 - ISO 4570)

Fluid Port Material

 N/A Carbon Steel

Country of Installation

 N/A Canada (CRN Registered)

Typical Fluids

 N/A Mineral Oil

Operating Temperature [Min]

 N/A -50 ºF

Operating Temperature [Max]

 N/A 180 ºF

Maximum Discharge Flow Rate Q

 N/A 240 gpm

Maximum Working Pressure

 N/A 248 bar3600 psi

Size

 N/A 15 gal54 L

Effective Gas Volume

 N/A 13.87 gal3205 in³

Typical Pressure

 N/A 3000 psi

Bladder Compound

 N/A Low Temperature Buna (LT-NBR)

BUn

 N/A EA

Division

 N/A ACCUMULATORS

Product Group Family

 N/A BLADDER ACCUMULATORS

Product

 N/A BLADDER ACCUMULATORS

Dimensions

Diameter D

 N/A 9.1 in231 mm

Dimension A

 N/A 78.3 in1990 mm

Dimension B

 N/A 3.1 in80 mm

Dimension C

 N/A 2.3 in58 mm

Diameter E

 N/A 3.0 in76 mm

Thread-J Size (Society of Automotive Engineers (SAE))

 N/A 1 7/8-12 UN (SAE-24)

Thread-J Size (National Pipe Thread Fine (NPTF), British Standard Parallel Pipe (BSPP))

 N/A 2 in

Construction

N/A HYDAC bladder accumulators consist of a welded or forged pressure vessel (shell), a bladder and ports for gas and fluid inlet. The gas and fluid sides are separated by the bladder.

Corrosion Protection

N/A For use with certain aggressive or corrosive fluids, or in a corrosive environment, HYDAC offers protective coatings and corrosive resistant materials (i.e. stainless steel) for the accumulator parts that come in contact with the fluid, or are exposed to the hostile environment.

Mounting Position

N/A HYDAC bladder accumulators can be installed in any orientation depending upon the application. When installing vertically or at an angle, the fluid port must be at the bottom. On certain applications listed below, specific positions are preferable:

  • Energy Storage:
    • vertical
  • Pulsation Dampening:
    • any position from vertical to horizontal
  • Maintaining Constant Pressure:
    • any position from vertical to horizontal
  • Volume Compensation:
    • any position from vertical to horizontal
Caution: Mounting a HYDAC bladder accumulator horizontally or at an angle will decrease the amount of usable volume available.

System Mounting

N/A HYDAC bladder accumulators are designed to be screwed directly onto the system. We also recommend the use of our mounting components, to minimize risk of failure due to system vibrations.

Application

N/A Some common applications of bladder accumulators are:

  • Agricultural Machinery & Equipment
  • Forestry Equipment
  • Oil Field & Offshore
  • Machine Tools
  • Mining Machinery & Equipment
  • Mobile & Construction Equipment
  • Off-Road Equipment