Integral two-stage regulators __________ incorporate an integral pressure relief valve in the high pressure regulator portion of the unit.

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In the context of integral two-stage regulators, the design standards typically dictate that these devices should not include an integral pressure relief valve within the high pressure regulator portion. This design choice is primarily based on safety and operational efficiency.

The rationale behind this approach is that two-stage regulators are already designed to regulate gas pressure effectively through their dual stages – a high-pressure stage followed by a low-pressure stage. Incorporating a pressure relief valve in the high-pressure section could potentially complicate the regulator's function and lead to unwanted pressure variations or dangerous conditions.

Moreover, safety guidelines often specify separate relief mechanisms for high-pressure applications to ensure proper handling of gas under pressure rather than relying on an integral solution within the regulator itself. This separation allows for better management of pressure relief without interfering with the primary regulating function.

Therefore, the position against having an integral pressure relief valve in the high-pressure portion is aligned with industry standards aimed at maintaining reliable and safe operation of propane systems.

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