3/4" Safety Valve Set At 11.5 Kg/Sq. Cm As Per Clw Drg. No. 0/3/65/93 Alt-3. Each U Nit Should Be Embossed/Engraved With Maker'S Name, Month, Year & Batch No. Of Manufact Uring At A Conspicuous Place. [ Warranty Period: 30 Months After The Date Of Delivery ] ]