Flowserve Twin Screw Rotary - Manual (Page 22)

TWIN SCREW PUMPS. ORIGINAL USER INSTRUCTIONS. ENGLISH. 71569243 – 07/10
Page 19 of 53
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PUMP SIZE NP24
MODEL INTERNAL BEARING EXTERNAL BEARING
SHAFT/SCREW DESIGN PINNED INTEGRAL PINNED INTEGRAL
SUCTION SIZE (STD) 14” 150# FLANGED
DISCHARGE SIZE (STD) 12” 300# FLANGED
CLEARANCES (STD) .51/.76 mm (.020/.030”)
PUMP 3855 (8500) 4536(10000)
WEIGHTS
KG(LBS)
ROT ELEMENT 1179 (2600) 1247 (2750)
MOMENT OF INERTIA (LBS/IN2) 23800 24900
SHAFT DIA @ COUPLING 92.1 mm (3.625”) 92.1 mm (3.625”)
SHAFT DIA @ ST BOX 95.3 mm (3.750”) 146.1 mm (5.750”)
BORE 120.7 mm (4.750”) 171.5 mm (6.750”)
STUFFING
BOX
DEPTH 120.7 mm (4.750”) 114.3 mm (4.500”)
NO OF STUFF BOXES 1 4
SIZE 12.7 mm (1/2)sq 12.7 mm (1/2)sq
PACKING
NO OF RINGS 8 28
TIMING GEAR HSG N/A N/A 21 L 21 L
APPROX.
OIL FILL
BEARING HSG SEE
NOTE 1
N/A N/A 8.5 L 8.5 L
PUMP SIZE NP18
MODEL INTERNAL BEARING EXTERNAL BEARING
SHAFT/SCREW DESIGN PINNED INTEGRAL PINNED INTEGRAL
SUCTION SIZE (STD) 14” 150# FLANGED
DISCHARGE SIZE (STD) 12” 300# FLANGED
CLEARANCES (STD) .51/.76 mm (.020/.030”)
PUMP 3629 (8000) 4309 (9500)
WEIGHTS
KG(LBS))
ROT ELEMENT 1111 (2450) 1168 (2575)
MOMENT OF INERTIA (LBS/IN2) 23150 24250
SHAFT DIA @ COUPLING 92.1 mm (3.625”) 92.1 mm (3.625”)
SHAFT DIA @ ST BOX 95.3 mm (3.750”) 146.1 mm (5.750”)
BORE 120.7 mm (4.750”) 171.5 mm (6.750”)
STUFFING
BOX
DEPTH 120.7 mm (4.750”) 114.3 mm (4.500”)
NO OF STUFF BOXES 1 4
SIZE 12.7 mm (1/2)sq 12.7 mm (1/2)sq
PACKING
NO OF RINGS 8 28
TIMING GEAR HSG N/A N/A 21 L 21 L
APPROX.
OIL FILL
BEARING HSG SEE
NOTE 1
N/A N/A 8.5 L 8.5 L
Note 1. Depending on whether the pump is a front or rear timing gear style, the bearing housing may be on the
onboard or outboard side of the pump.