STDA Series Diaphragm Accumulators

Stauff_Accumulator_Diaphragm_STDA

Technical Characteristics

  • Electron Beam Welded Construction
  • High Strength Alloy Steel Shell
  • Compact Design
  • Operating Pressure to 3600 PSI (250 Bar)
  • Capacity up to 3.5 Liters
  • Hydrin (ECO) Diaphragm Material (Standard)
  • Operating Temperature Range:  -40° to +80°C (-40° to +170°F)
  • Low Permeation Coefficient
  • Up to 1:8 Compression Ration (Precharge/Maximum Working)
  • UNF Oil Port Connection (Standard)
  • Conforms to CE97/23
  • Corrosion Resistant Black Gloss Finish
  • Metric Gas Valve (Standard)

 

OPTIONS

Gas Port

  • Precharged Hermetically Sealed (non-rechargeable)
  • US Style Gas Valve

Oil Port

  • BSP, Metric, Male/Female Metric Combination, ORFS

Diaphragm Material

  • Nitrile (NBR) Butyl (UR) Viton (FKM)
  • Low Pressure Construction

WHY USE A DIAPHRAGM ACCUMULATOR?

  • Compact & Lightweight Design
  • Fast Response Time
  • Cost Effective
  • Supplements Pump Flow
  • Extends System Life
  • Absorbs Shock
  • Contamination Tolerant

 

Stauff_Accumulator_Diaphragm_STDA_Dwg_1

 

 

Dimensions

 

Stauff_Accumulator_Diaphragm_STDA_Dwg_2

 

 

Stauff
Part
Number
Gas
Volume
liters
Max.
Pressure
Comp.
Ratio*
Diaphragm
Material
Gasport
Design**
Oilport Overall Dimensions
Female Hex H D
D1 in
(mm)
in
mm
in
mm
STDA-007-ECO-P4-U-M-N-1 0.075 250 1:8 ECO M28 x 1.5 9/16 - 18 UNF 1.25
(32)
4.35
(111)
2.52
(64)
STDA-016-ECO-P4-U-M-N-1 0.16 250 4.69
(119)
2.95
(75)
STDA-032-ECO-P3-U-M-N-1 0.32 210 3/4 - 16 UNF 5.28
(134)
3.64
(92.5)
STDA-050-ECO-P3-U-M-N-1 0.5 210 1.61
(41)
5.95
(151)
4.20
(106.7)
STDA-075-ECO-P3-U-M-N-1 0.75 210 6.54
(166)
4.78
(121.5)
STDA-100-ECO-P3-U-M-N-1 1 210 7.09
(180)
5.06
(136.2)
STDA-140-ECO-P3-U-M-N-1 1.4 210 7.52
(191)
5.80
(147.3)
STDA-200-ECO-P4-U-M-N-1 2 250 1-1/16 - 12 UNF 9.92
(252)
6.14
(156)
STDA-280-ECO-P4-U-M-N-1 2.8 250 1:6 1.97
(50)
10.51
(267)
6.85
(174)
STDA-350-ECO-P4-U-M-N-1 3.5 250 1:4 12.05
(306)
6.85
(174)

*Compression Ratio = Pre-charge pressure : Maximum working pressure. Exceeding the compression ratio may cause diaphragm to fail.

**Hermetically sealed and "shrader valve" options available on special request. (Minimum order quantities may be required).