Operating Characteristics and Equipment Risk Points The high-pressure manifold works under extremely harsh conditions and has several notable characteristics: 1. Alternating Pressure Fatigue Loads: The drilling pump is a reciprocating pump; its output pressure is not constant. Continuous periodic pulsations impact the manifold, subjecting the line to long-term alternating stress, and long-term operation can easily cause fatigue cracks in welds and connections. 2. Solid
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