Top shareholders of Gardner Denver Inc. are scheduled to meet discusses $3.7 billion offer from private equity firm KKR & Co. LP for the industrial machinery manufacturer, according to sources.

Wayne, Pennsylvania-based Gardner Denver's Board of stockholders including ValueAct Holdings LP have noted company's management about their support for $75 per share offered by KKR.

Recently, the industrial machinery maker reported sales forecast for 2013 in which results were lower than what many analysts expects. This is attributed to the continuous sluggish activity in the demand for the company's engineering products such as industrial pumps and petroleum.

Gardner Denver and KKR were requested to comment on the speculated review meeting but neither of the two responded.