What should fittings at the discharge of a liquid transfer pump be suitable for?

Fittings at the discharge of a liquid transfer pump are critical components that need to be designed to handle high working pressures appropriately. Selecting fittings that can withstand at least 350 psig is essential because liquid propane can be transferred under significant pressure, which ensures safe and efficient operation while minimizing the risk of leaks or failures.

In liquid transfer operations, the risk associated with inadequate fittings is considerable; if fittings are not rated for the correct pressure, they may fail during operations, leading to potential safety hazards such as explosions or hazardous leaks. Therefore, fittings must be robust enough to handle not just normal operating pressures, but also any potential spikes in pressure that may occur during operation or system fluctuations.

The other choices suggest much lower pressure ratings, which would not adequately ensure safety and reliability in high-pressure scenarios typically expected in propane liquid transfer applications. Thus, selecting fittings that can withstand pressures of at least 350 psig aligns with best practices in ensuring the integrity and safety of the propane handling system.