Taylor-Wharton Auto Fill Laser Pak - Manual (Page 11)

11
Safety Devices
The system has independent inner container relief devices piped to each of the vessels. Each set consists of a
primary relief valve (RV-1) to relieve pressure when it exceeds 600 psig. The valve reseats when pressure
drops below this point. In addition, each primary relief valve is supported by a secondary relief device
consisting of a rupture disc (BD). The rupture disc will burst at a pressure of approximately 875 psig. The
rupture discs require replacement in the event a safety valve malfunctions and allows vessel pressure to reach
the burst pressure rating.
Figure 6: Safety circuit for vessel B highlighted in blue.
(Frame and wiring omitted from view for clarity.)
BD-B
RV-1B