Two of the orders are for new US production capacity of chemical/petrochemicals in the Gulf Coast region.
Graham said lower feedstock and energy costs stemming from shale gas development have driven investments in chemical and petrochemical capacity.
Under the third order, Graham will support expansion of an oil refinery in Saudi Arabia.
The projects are anticipated to ship during the latter half of fiscal 2015, which is due to end on 31 March of that year.
Graham president and chief executive officer James Lines said over many decades, the company has developed a reputation for delivering custom fabricated, high quality products and supporting end users from project inception to aftermarket support.
"We believe that our leadership position is demonstrated by our recent project wins for investments in new chemical and petrochemical capacity in North America as well as by continued demand for our equipment in the Middle East," Lines said.
"We have won several projects during the past two quarters associated with the North American chemical industry renaissance and we believe that our bid pipeline presents us with further opportunities."
