Issue of the safety valve setting pressure not being within the permissible pressure range
Thread Content
The design institute specified a setting pressure of 0.6 MPa for the safety valve, while the pressure rating of the safety valve to be purchased was 0.6–0.8 MPa. However, after investigation, it was found that the design pressure for the equipment to which the safety valve is intended to be installed is 0.45 MPa. After informing the design institute of this fact, they adjusted the setting pressure to 0.45 MPa. Under these circumstances, we have the following questions: 1. Can this safety valve still be used? Is it still necessary to replace the spring or purchase a new safety valve directly? 2. Another thing is that there is a **standard specification to support your view.**
It is necessary to contact the manufacturer to replace the spring
Be sure to first consult the original design team to make the corrections in the drawings
The original safety valve definitely cannot be used; contact the manufacturer