FK 40 - Tri-Canada

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Positive displacement pumps Case 3: viscous product η = 500–100,000 mPa s Step 3: calculat e absorbed power N [kW]. N = (2 × p + V) × n × C 1000 p = pressure in bar ∪ H/10 V = viscosity factor n = speed at H = 0 C = flow rate/revolution [l/rev.] Example :
Mechanical seals are devices to seal machines between rotating parts (shafts), and stationary parts (pump housing). There are two types of mechanical seals: • single mechanical seals • double mechanical seals Mechanical seals consist of two surfaces which slide against each other The surfaces are pressed together by a spring. Between these two surfaces a fluid film is generated by the pumped product. This fluid film prevents that the mechanical seal touches the stationary ring. The absence of this fluid film will result in frictional heat and the destruction of the mechanical seal (dry run of the pump). Spring Rotating ring Stationary ring Mechanical seal selection Mechanical seal Single mechanical seals
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Content Pump technology terms . . .
Page 4 and 5:
Pump technology terms Flow rat e [m
Page 6 and 7: Pump technology terms Flow behaviou
Page 8 and 9: Pump technology terms Types of flow
Page 10 and 11: Pump technology terms NPSH value [m
Page 12 and 13: Loss of head calculation Loss of he
Page 14 and 15: Loss of head calculation Example: F
Page 16 and 17: Centrifugal pumps Feat ures of t he
Page 18 and 19: Centrifugal pumps Correction of the
Page 20 and 21: Centrifugal pumps Pumps connected i
Page 22 and 23: Centrifugal pumps Centrifugal pump
Page 24 and 25: Centrifugal pumps Centrifugal pump
Page 26 and 27: Centrifugal pumps Power consumption
Page 28 and 29: Centrifugal pumps Self- priming cen
Page 30 and 31: Centrifugal pumps Multistage centri
Page 32 and 33: Positive displacement pumps Perform
Page 34 and 35: Positive displacement pumps Selecti
Page 36 and 37: Positive displacement pumps Case 1:
Page 46 and 47: Positive displacement pumps Rotary
Page 58 and 59: Mechanical seal selection Double me
Page 60 and 61: Mechanical seal selection “Face t
Page 62 and 63: Mechanical seal selection Elastomer
Page 64 and 65: Pump cleaning SIP After CIP cleanin
Page 66 and 67: Index Cavitation . . . . . . . . .
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FK 40 - Tri-Canada

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