ARCHIVE
november 2017
october 2017
september 2017
august 2017
july 2017
june 2017
may 2017
april 2017
march 2017
february 2017
january 2017
december 2016
november 2016
october 2016
september 2016
august 2016
july 2016
june 2016
may 2016
april 2016
march 2016
february 2016
january 2016
december 2015
november 2015
october 2015
september 2015
august 2015
july 2015
june 2015
may 2015
april 2015
march 2015
february 2015
january 2015
december 2014
november 2014
october 2014
september 2014
august 2014
july 2014
june 2014
may 2014
april 2014
march 2014
february 2014
january 2014
december 2013
november 2013
october 2013
september 2013
august 2013
july 2013
june 2013
may 2013
april 2013
march 2013
february 2013
january 2013
april 2011

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)

Shut-off valves are devices that assess the amount of fuel reaching the heat generator, in order to better manage the temperature of the heat transfer fluid and ensure the best performance of the hydraulic heating system. The device works in close contact with the fuel and therefore it is subject to inspection by the I.S.P.E.S.L. and must comply with certain specifications.
In order to put on the market the range of shut-off valves, it is very important that such inspection and specifications are complied with. I.S.P.E.S.L specifications outline that shut-off valves must contain the following components manufactured according to the specifications provided for by the same entities: the body of the shut-off valve and its control must be made from CW617N brass and subsequently forged and chrome plated. The bellows must be made from phosphor bronze and the length of the copper probe must be 5 metres. The control rod of the shut-off valve must be made from stainless steel, whereas the o-rings must be made from nitrile rubber. Furthermore, all the springs cannot be made from any other metal alloy than steel, whilst any other parts must be made from CW617 brass.
These are just some of the requirements laid down by the various entities that regulate whether shut-off valves suitably comply with the design standards and therefore can be put on the market.
 

12/03/2014


See also
12/09/2014 Distinctive features of the fuel shut-off valve Various characteristics ensuring the Gnali Bocia fuel shut-off valve is a safe product

12/05/2016 Shut-off valves and monitoring of fluid temperature The shut-off valve is a positive-action device that cuts the fuel supply

12/12/2013 The operation of shut-off valves The shut-off valve allows correct dosage of fuel to the heat generator

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

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


I contenuti di questo sito non hanno carattere di periodicità e non rappresentano 'prodotto editoriale'.