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High Pressure Diaphragm Pump - 1-1/2" HB Inlet x 3/4" NPT Outlet-1703081030

CDS John Blue

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Part #:
DP-291.1
$2,475.26   $1,767.99
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  • 3-diaphragm designs.
  • Ideal for air blast sprayers, poultry house washers and industrial machinery.
  • All fluid end-housing components are anodized aluminum.
  • Valves are stainless steel with exclusive spheric section shaped design for perfect sealing.
  • Diaphragms are made from chemical resistant elastomers, which increases the pump's life even when they are used with aggressive agricultural and industrial chemicals.



The John Blue High-Pressure Diaphragm Pumps are an excellent choice for high-pressure sprayers, such as air blast sprayers and poultry house washers and industrial machinery. These three and four diaphragm semi hydraulic diaphragm pumps are designed to ensure a perfect mechanical balance and better volumetric distribution of the liquid. The John Blue High-Pressure Diaphragm Pumps are factory equipped with the unique pulsation dampening system with 34 holes that absorbs pulsation pressure on all pistons equally.

All fluid end-housing components are anodized aluminum. The valves are stainless steel with exclusive spheric section shaped design for perfect sealing. Our diaphragms are made from chemical resistant elastomers, which increases the pump's life even when they are used with aggressive agricultural and industrial chemicals.

Features & Benefits:

High-Pressure Diaphragm Pumps
  1. Oversized, separate suction and pressure circuits create a smooth flow of the liquid product with no pressure loss.
  2. Convenient visual oil tank fitted with matched diaphragm to ensure correct oil level.
  3. Check valves can be serviced easily, minimum maintenance.
  4. Crankshaft stroke reduced, which increases diaphragm life because diaphragms are not stressed.
  5. Unique pulsation damper system provides dampening on 32 circuits instead of one, which reduces vibrations and allows for smoother operation.
  6. Four diaphragm material options are available, contact factory.
  7. Special check valve design: unique spherical shaped poppet and conical seat made of 316 stainless steel, delivering high volumetric efficiencies.
  8. Pre-set diaphragm bolt and diaphragm washer are made from 316 stainless steel. This exclusive feature ensures chemical resistance and longer life of the pump.
  9. Two piston rings for each piston, this exclusive design increases diaphragm efficiency.
  10. Parts in contact with chemical products are constructed with die-cast aluminum, covered with special corrosion proof treatment.

Exclusive Technology: Pumps come standard with internal pressure dampener. Standard, interchangeable parts for reduced inventory and best service. Full range: 2, 3, 4, 5, 6 diaphragms available.

Part Breakdown

DP-291.1 Part Breakdown

 

Reference Number Part Number Description Required
1DP-95004031BUNA-N PISTON DIAPHRAGM3
2DP-35980297VALVES ASSEMBLY6
6DP-86275200SCREW M8X3518
7DP-41012097NBR BALLASTER DIAPHRAGM1
8DP-37010809BALLASTER COVER1
9DP-41010409LOWER BALLASTER1
10DP-80136900RING DIA. 521
11DP-80217810OIL SEAL DIA.1
12DP-37010961MOUNTAING RAIL2
13DP-86326500SCREW M10X258
14DP-37011209CRANKCASE 40X52X71
15DP-8350632860 DEGREE ELBOW CONNECTOR G. 3/41
16SC-81490900BRASS G. 3/4 NUT1
17DP-84554410LEFT TAP G. 3/8-G.1/21
18DP-84554400RIGHT TAP G. 3/8-G.1/21
19DP-81291900ROLLER BEARING DIA. 40X80X181
21DP-41020619SHAFT RING1
22DP-41020509CONROD3
23DP-41020419CONROD HOLDING RING2
24DP-41020026CRANKSHAFT "VD"1
25DP-81291300BALL BEARING DIA. 40X90X231
26DP-80329500O-RING DIA. 3,53X190,11
27DP-80321070O-RING DIA. 2,62X126,671
28DP-80329100O-RING DIA. 3,53X88,51
29DP-41011209INLET COVER "VD"1
30DP-80219000OIL SEAL DIA. 40X72X101
31DP-14011632DIAPHRAGM SPACER1
35DP-80002100RING DIA. 156
36DP-85200700PISTON PIN DIA. 15X543
37DP-37001609PISTON DIA.703
38DP-81852700PISTON RING DIA. 706
39DP-43001501PISTON SLEEVE DIA. 703
40DP-41983597KIT DISK+ SCREW INOX3
41DP-86330000SCREW M10X3012
42DP-41010909VALVE COVER3
43DP-80326200O-RING DIA. 3,53X41,286
44DP-80325100O-RING DIA. 3,53X32,936
45DP-80320000O-RING DIA. 2,62X22,226
46DP-41011109PUMP HEAD3
47DP-86425000SCREW M14X7012
48DP-41011009VALVE COVER G. 3/8"3
49DP-82410700GASKET1
50DP-85257900CAP G. 3/8"1
51DP-28014432OIL FILLER CAP1
52DP-41001731OIL FILLER DIAPHRAGM1
53DP-55000432OIL FILLER1
54DP-80318000O-RING DIA. 2,62X15,081
55DP-84368550WASHER DIA. 8,2X15X1,52
56DP-86268250BOLT M8X252
57DP-80321910O-RING DIA. 3X301
58DP-82007000WING NUT G. 1-1/2"1
59DP-8405710090 DEGREE ELBOW CONN DIA. 381
74DP-24305097SAFETY VALVE 50 BAR (OPT)1
75DP-81302400NEEDLE ROLLER BEARING2
76DP-82407900WASHER DIA.131
77DP-85254350CAP G. 1/4"1
Part #:
DP-291.1
Manufacturer:
CDS John Blue
Material:
Poly
Opertion Manual:
John Blue DP-291.1 Operation Manual
Horsepower:
14
Inlet:
1-1/2" HB Inlet
Maximum Flow Rate (GPM):
29.1
Maximum Pressure (PSI):
725
Maximum RPM:
550
Maximum Temperature (F°):
140
Outlet:
3/4" NPT Outlet
Material:
Poly
Opertion Manual:
John Blue DP-291.1 Operation Manual
Horsepower:
14
Inlet:
1-1/2" HB Inlet
Maximum Flow Rate (GPM):
29.1
Maximum Pressure (PSI):
725
Maximum RPM:
550
Maximum Temperature (F°):
140
Outlet:
3/4" NPT Outlet
a_mpn:
DP-291.1