Flowserve Twin Screw Rotary User 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