Flowserve Twin Screw Rotary - Manual (Page 21)

TWIN SCREW PUMPS. ORIGINAL USER INSTRUCTIONS. ENGLISH. 71569243 – 07/10
Page 18 of 53
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PUMP SIZE NLX
MODEL INTERNAL BEARING EXTERNAL BEARING
SHAFT/SCREW DESIGN PINNED INTEGRAL PINNED INTEGRAL
SUCTION SIZE (STD) 12” 300# FLANGED
DISCHARGE SIZE (STD) 10” 300# FLANGED
CLEARANCES (STD) .36/.56 mm (.014/.022”)
PUMP 2200 (4850)
WEIGHTS
KG(LBS)
ROT ELEMENT 550 (1212)
MOMENT OF INERTIA (LBS/IN2) 6800
SHAFT DIA @ COUPLING 79.4 mm (3.125”)
SHAFT DIA @ ST BOX 130.2 mm (5.125”)
BORE 190.5 mm (7.500”)
STUFFING
BOX
DEPTH 108 mm (4.25”)
NO OF STUFF BOXES 4
SIZE 12.7 mm (1/2)sq
PACKING
NO OF RINGS 24
TIMING GEAR HSG N/A N/A 6.75 L 6.75 L
APPROX.
OIL FILL
BEARING HSG SEE
NOTE 1
N/A N/A 0.5 L 0.5 L
PUMP SIZE NM
MODEL INTERNAL BEARING EXTERNAL BEARING
SHAFT/SCREW DESIGN PINNED INTEGRAL PINNED INTEGRAL
SUCTION SIZE (STD) 12” 150# FLANGED
DISCHARGE SIZE (STD) 10” 300# FLANGED
CLEARANCES (STD) .41/.61 mm (.016/.024”)
PUMP 2268 (5000) 3402 (7500)
WEIGHTS
KG(LBS)
ROT ELEMENT 522 (1150) 601 (1325)
MOMENT OF INERTIA (LBS/IN2) 8600 8900
SHAFT DIA @ COUPLING 79.4 mm (3.125”) 79.4 mm (3.125”)
SHAFT DIA @ ST BOX 79.4 mm (3.125”) 108 mm (4.250”)
BORE 104.8 mm (4.125”) 133.4 mm (5.250”)
STUFFING
BOX
DEPTH 92.1 mm (3.625”) 92.1 mm (3.625”)
NO OF STUFF BOXES 1 4
SIZE 12.7 mm (1/2)sq 12.7 mm (1/2)sq
PACKING
NO OF RINGS 7 24
TIMING GEAR HSG N/A N/A 7.5 L 7.5 L
APPROX.
OIL FILL
BEARING HSG SEE
NOTE 1
N/A N/A 0.5 L 0.5 L