Silo safety surges ahead with test rigOctober 1st 2005
Portasilo has developed an independently vetted test rig to evaluate the effectiveness of pneumatic pressure relief valves used in pressure relief valves employed in pressurised tanker filling from silos. The rig has confirmed the effectiveness of the recently announced Portasilo PRV350 combined pressure and vacuum relief valve in avoiding damaging over and under pressurisation during powder filling and emptying.
The potential hazards of inadequate pressure and vacuum relief provision have been tackled by the Health and Safety Executive, which has issued guidance on sizing of filters and pressure relief valves as a result of a number of serious accidents during pneumatic filling of and from silos.
The HSE guide identifies that a significant air surge could occur at the end of a filling operation. The PRV350 valve will handle these large air flows with minimal pressure accumulation, making it possible to maximise the set pressure and so reduce the chance of atmospheric pollution through dust release.
More articles from Portasilo:
M-Type silos in five sizes (1st February 2005)
Portasilo has launched the new M-Type silo range with five size options which it says offers all the usual advantages plus reduced lead times.
From Storing containers
Silo discharger ATEX approved (1st June 2004)
The award-winning Rotoflo range of silo discharge systems from Portasilo has been ATEX Category 1 approved for use in potentially explosive environments.
From Health & Safety
Silo valve meets HSE guidelines (1st February 2004)
Portasilo Bulk Handling Systems has developed the new Portasilo PRV350 combined pressure and vacuum relief valve for the protection of silos from damaging over- and under-pressurisation encountered during powder filling and emptying.
