Membrane accumulators OL – ELM Because of their simple design, membrane accumulators OL – ELM are particularly suitable for secondary applications. They are available in different versions. The different types of design give flexibility in respect of uses and applications, e.g. in the case of fluids with high viscosity, to compensate for leakage losses, to maintain pressure, to bridge the response time for pumps with variable delivery quantities or for cushioning purposes. olaer accumulator distributors parker accumulator accessories parker accumulator catalog parker bladder accumulator repair kit olaer accumulator software parker diaphragm accumulator parker piston accumulator catalog parker olaer accumulator sizing