Continued

58. Pump running at or near critical speed

59. Too long a shaft span or too small a shaft diameter

60. Resonance between operating speed and natural frequency of foundation, baseplate, or piping

61. Rotating part rubbing on stationary part

62. Incursion of hard solid particles into running clearances

63. Improper casing gasket material

64. Inadequate installation of gasket

65. Inadequate tightening of casing bolts

66. Pump materials not suitable for liquid handled

67. Certain couplings lack lubrication

Survival Treasure

Survival Treasure

This is a collection of 3 guides all about survival. Within this collection you find the following titles: Outdoor Survival Skills, Survival Basics and The Wilderness Survival Guide.

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