2 5 < < > > N D P -4
2 0 < < > > N D P -2 4 0 < < > > N D P -55 0 < < > > N 116 GPM Max. Capacity
1-1/2” Port Size
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Polypropylene Aluminum Stainless Steel-Flanged Cast Iron and
Stainless Steel-NPT
Hastelloy Also Available
D
Polypropylene Aluminum i
4.61 (117) 4.25 (108)
m
e
n
s
27.91 (709)
i
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o
n
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s
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7.87 (200) 10.83 (275) 16.18 (411) 7.87 (200)
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Stainless Steel-Flanged Cast Iron and Stainless Steel-NPT
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27.75 (705)
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25.00 (635)
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3.70 (94)
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10.55 (68) 7.87 (200) 10.55 (268) 7.87 (200)
16.18 (411) 11.30 (287) 16.18 (411) 11.30 (287)
14 America, Inc.
D P 8 0 < < > > N D P -5
5 < < > > D P -1
1 0 < < > > N D P -1
15<<>>NDP-
Performance Curves* Index
Rubber Diaphragm PTFE Diaphragm
NDP-440
Meter Feet (TDH) Meter Feet (TDH)
80 80
250
35SC
250 3 5S
2 5S
1 05
50 S
70 105 70 PS
P SI I
CFM
FM
CF
70S
CF M
M
7 0S
CFM
90PS 90P
90 S
60 200 I 60 200
105
SI
CF
CF M
SC
M
75 P 50 75 P
50 SI SI
FM
150 150
120
10
60PS 60PS
5S
40 I 40 I
SC
CF
FM
M
45PSI 100 45PSI
30 100 30
30PSI 30PS
20 20 I
50 50
10 10
0 0 0 0
0 20 40 60 80 90 100 120 0 20 40 60 80 100 120
Gallon/Min. Gallon/Min.
0 100 200 300 400 0 100 200 300 400
Liter/Min. Liter/Min.
* Data based on 1-ft. flooded suction; ambient water.
Specifications
Polypropylene Aluminum Stainless Steel Stainless Steel Cast Iron
Wetted Materials (PPG) (356-T6) (316)-Flange (316)-NPT (FC)
Type & Diaphragm Material
Neoprene NDP-40BPC NDP-40BAC NDP-40BSC NDP-40BSC-NPT NDP-40BFC
Buna N NDP-40BPN NDP-40BAN NDP-40BSN NDP-40BSN-NPT NDP-40BFN
EPDM NDP-40BPE NDP-40BAE NDP-40BSE NDP-40BSE-NPT NDP-40BFE
Hytrel® NDP-40BPH NDP-40BAH NDP-40BSH NDP-40BSH-NPT NDP-40BFH
Santoprene® NDP-40BPS NDP-40BAS NDP-40BSS NDP-40BSS-NPT NDP-40BFS
Viton® NDP-40BPV NDP-40BAV NDP-40BSV NDP-40BSV-NPT NDP-40BFV
PTFE NDP-40BPT NDP-40BAT NDP-40BST NDP-40BST-NPT NDP-40BFT
Discharge Volume/Cycle
Rubber diaphragm 0.74 gal. (2.8 liters) 0.74 gal. (2.8 liters) 0.74 gal. (2.8 liters) 0.74 gal. (2.8 liters) 0.74 gal. (2.8 liters)
PTFE diaphragm 0.37 gal. (1.4 liters) 0.37 gal. (1.4 liters) 0.37 gal. (1.4 liters) 0.37 gal. (1.4 liters 0.37 gal. (1.4 liters
Maximum Cycles/Minute
Rubber diaphragm 148 148 148 148 148
PTFE diaphragm 270 270 270 270 270
Port Dimensions:
Intake & discharge connection 11¼2” ANSI B16.5 #150 11¼2” ANSI B16.5 #150 11¼2” ANSI B16.5 #150 * 11¼2” Female NPT 11¼2” Female NPT
Air inlet (with ball valve) Female NPT 1/2” Female NPT 1/2” Female NPT 1/2” Female NPT 1/2” Female NPT 1/2”
Air exhaust (with silencer) Female NPT 3/4” Female NPT 3/4” Female NPT 3/4” Female NPT 3/4” Female NPT 3/4”
Maximum Size Solid <9/32” (7 mm) <9/32” (7 mm) <9/32” (7 mm) <9/32” (7 mm) <9/32” (7 mm)
Maximum Liquid Temperatures:
Neoprene diaphragm 180°F (82°C) 180°F (82°C) 180°F (82°C) 180°F (82°C) 180°F (82°C)
Buna N diaphragm 180°F (82°C) 180°F (82°C) 180°F (82°C) 180°F (82°C) 180°F (82°C)
EPDM diaphragm 180°F (82°C) 180°F (82°C) 180°F (82°C) 180°F (82°C) 180°F (82°C)
Hytrel® diaphragm 180°F (82°C) 248°F (120°C) 248°F (120°C) 248°F (120°C) 248°F (120°C)
Santoprene® diaphragm 180°F (82°C) 212°F (100°C) 212°F (100°C) 212°F (100°C) 212°F (100°C)
Viton® diaphragm 180°F (82°C) 248°F (120°C) 248°F (120°C) 248°F (120°C) 248°F (120°C)
PTFE diaphragm 180°F (82°C) 212°F (100°C) 212°F (100°C) 212°F (100°C) 212°F (100°C)
Net Weight 59.4 lbs. (29.9 kg) 63.8 lbs. (28.9 kg) 88 lbs. (39.9 kg) 88 lbs. (39.9 kg) 132 lbs. (59.8 kg)
Shipping Weight 74.8 lbs. 78.8 lbs. 104 lbs. 103 lbs. 147 lbs.
Maximum Dry Suction Lift 18 ft. 18 ft. 18 ft. 18 ft. 18 ft.
■ All Hytrel® fitted pumps utilize Buna N check balls & wetted o-rings
■ All Santoprene® fitted pumps utilize EPDM check balls & wetted o-rings
■ All NDP-40 pumps utilize an Aluminum air motor as standard
Options: Epoxy coating, PFA coating or Electroless Nickel plate
■ Air supply pressure 20 to 100 PSI (1.4 to 7kfg/cm2) on all models
■ Dry suction lift figures represent rubber fitted pump capability
* With tapped 112” female NPT
America, Inc. 15
