Flowserve Twin Screw Rotary - Manual (Page 20)

TWIN SCREW PUMPS. ORIGINAL USER INSTRUCTIONS. ENGLISH. 71569243 – 07/10
Page 17 of 53
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PUMP SIZE NJ
MODEL INTERNAL BEARING EXTERNAL BEARING
SHAFT/SCREW DESIGN PINNED INTEGRAL PINNED INTEGRAL (RTG)
SUCTION SIZE (STD) 12” 150# FLANGED
DISCHARGE SIZE (STD) 10” 300# FLANGED
CLEARANCES (STD) .30/.45 mm (.012/.018”)
PUMP 1451 (3200) 1451 (3200) 1905 (4200) 1905 (4200)
WEIGHTS
KG(LBS)
ROT ELEMENT 390 (860) 390 (860) 442 (975) 442 (975)
MOMENT OF INERTIA (LBS/IN2) 4870 4870 5150 5150
SHAFT DIA @ COUPLING 79.4 mm (3.125”) 79.4 mm (3.125”) 79.4 mm (3.125”) 79.4 mm (3.125”)
SHAFT DIA @ ST BOX 79.4 mm (3.125”) 79.4 mm (3.125”) 85.7 mm (3.375”) 108 mm (4.250”)
BORE
104.8mm
(4.125”)
104.8 mm (4.125”)
111.1 mm
(4.375”)
133.4 mm (5.250”)
STUFFING
BOX
DEPTH 108 mm (4.250”) 108 mm (4.250”) 82.6 mm (3.250”) 82.6 mm (3.250”)
NO OF STUFF BOXES 1 1 4 4
SIZE 12.7 mm (1/2)sq 12.7 mm (1/2)sq 12.7 mm (1/2)sq 12.7 mm (1/2)sq
PACKING
NO OF RINGS 7 7 24 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 0.25 L 0.25 L
PUMP SIZE NL
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) .36/.56 mm (.014/.022”)
PUMP 1678 (3700) 1678 (3700) 2132 (4700) 2132 (4700)
WEIGHTS
KG(LBS)
ROT ELEMENT 472 (1040) 472 (1040) 533 (1175) 533 (1175)
MOMENT OF INERTIA (LBS/IN2) 6270 6270 6500 6500
SHAFT DIA @ COUPLING 79.4 mm (3.125”) 79.4 mm (3.125”) 79.4 mm (3.125”) 79.4 mm (3.125”)
SHAFT DIA @ ST BOX 79.4 mm (3.125”) 79.4 mm (3.125”) 85.7 mm (3.375”) 108 mm (4.250”)
BORE
104.8mm
(4.125”)
104.8 mm (4.125”)
111.1 mm
(4.375”)
133.4 mm (5.250”)
STUFFING
BOX
DEPTH 108 mm (4.250”) 108 mm (4.250”) 82.6 mm (3.250”) 82.6 mm (3.250”)
NO OF STUFF BOXES 1 1 4 4
SIZE 12.7 mm (1/2)sq 12.7 mm (1/2)sq 12.7 mm (1/2)sq 12.7 mm (1/2)sq
PACKING
NO OF RINGS 7 7 24 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