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april 2011

Interception valves and I.S.P.E.S.L. standards

The interception valve requirements are defined in the ISPESL standards

The interception valves produced by GNALI BOCIA S.r.l. are manufactured on an original patented design using materials which guarantee reliability and durability – two essential factors for making your plants really safe.
These interception valves intervene in normal conditions - if the temperature is exceeded - or in the event of breakage of the heat probe with diathermic fluid leakage. They are therefore fail-safe.
These tools are calibrated and type-approved pursuant to the 'Raccolta 8' provisions issued by ISPESL (now INAIL, the National Workers' Compensation Authority), which also specifies the situations requiring the use of fuel interception valves in order to guarantee the safety of the plant.
These standards require that each valve is calibrated in the presence of an official appointed by the Authority and is identified by a plate bearing the valve serial number and locking the calibration device. A test certificate should accompany the valve and must be carefully kept along with the plant-related documentation.
The interception valves body is made from forged brass CW617N (OT58) which is machined and then chromed to guarantee resistance and durability in contact with the main fuels used: Diesel, LPG, Methane, Fuel Oils. All materials used, from the body to the nitrile rubber packing seals, have been chosen to guarantee durability of the product over tim


See also
14/12/2014 Fail-safe aspects of the fuel shut-off valve Operation and safety of the fuel shut-off valve for burners and boilers

14/03/2014 The design specifications of shut-off valves To allow the careful protection and control of the structures, shut-off valves must be designed according to the structural characteristics provided for by the I.S.P.E.S.L. (Italian Institute for Occupational Safety and Prevention)

14/12/2015 Greater safety with the shut-off valves of the fuel Shut-off valve are positive safety devices that protect the system under pressure.

14/03/2015 Data and certificates in support of a shut-off valve The shut-off valve is identified by the lead tag of the inspector at the time of testing

14/05/2016 Shut-off valves and monitoring of fluid temperature The shut-off valve is a positive-action device that cuts the fuel supply

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