All refrigeration systems must be protected by a pressure relief valve that must not be installed in series. Which term completes the blank?

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Multiple Choice

All refrigeration systems must be protected by a pressure relief valve that must not be installed in series. Which term completes the blank?

A pressure relief valve protects refrigeration equipment from dangerous overpressure by opening at a preset pressure and venting the excess gas to a safe area. Because it responds to pressure, the term that completes the blank is “Pressure.” Installing a pressure relief valve in series with another valve or device can block or delay relief, or alter the effective relief path, which defeats the purpose of the safety device. The valve must have an unobstructed path to relieve the system pressure directly, independent of other valves.

A pressure relief valve protects refrigeration equipment from dangerous overpressure by opening at a preset pressure and venting the excess gas to a safe area. Because it responds to pressure, the term that completes the blank is “Pressure.” Installing a pressure relief valve in series with another valve or device can block or delay relief, or alter the effective relief path, which defeats the purpose of the safety device. The valve must have an unobstructed path to relieve the system pressure directly, independent of other valves.

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