Rotork PLC (LON:ROR) warned interim adjusted operating profits will be lower than last year, though margins are expected to be "relatively resilient".
Revenues for the six months to June 30 are estimated to be down 11-13% on last year, while group order intake is to drop 16-18%.
The industrial instruments maker was hit by disruption during the pandemic, especially in its oil & gas and chemical, process & industrial divisions, while water & power held up better being essential services.
Following partial closures, all plants are now open but operating below normal output levels due to social distancing measures.
Analysts at Shore Capital said future growth can be hindered by cost-cutting measures, exposure to the oil and gas sector, the impact of coronavirus on site services as well as increased travel costs and restrictions.
Shares shed 5% to 272.8p on Tuesday at the opening bell.