P&ID symbol for Internal Fire Safety Valve with Fusible Link

[tsenne]

Ia anyone aware of a P&ID symbol for an internal fire safety valve, like the Protectoseal 3000 or Morrison Figure 272? It is a normally-open spring-loaded valve with a fusible link that holds it open. Installed on a nozzle at bottom of flammable material AST. Haven't found anything applicable in ISA or PIP.

 

[Alan3232]

You can define a symbol yourself on the legend front page

 

[ProSafPlant1]

Here's a symbol from a company that used to install Greenwood QCV's on LPG tank outlets. Also a fusible link from another company's PID standard. A motor-operated valve symbol with TSE instead of M on the box might work.

retired, technical library for sale on eBay -

https://www.ebay.com/usr/prosafbooks