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Low Pressure Poly Diaphragm Pump -  2" HB Inlet x 1" NPT Outlet

Low Pressure Poly Diaphragm Pump - 2" HB Inlet x 1" NPT Outlet

Part #: DP-687-P


  • The heads are designed with a patented technology that includes an aluminum die-cast core inside a polypropylene structure offering superior strength.

  • Washers and diaphragm bolts are in 316 stainless steel, an exclusive feature.

  • Die cast crankcase incorporating a new cooling system.

  • New chemically resistant diaphragm material pre-deformed to reduce the amount of deflection, increasing diaphragm life. The diaphragm material is compatible with most of the corrosive chemicals on the market today.

  • A short crankshaft stroke means the longest life possible.

  • New connecting rods in special bronze alloy offer economical and trouble free service.

  • 316 stainless steel inlet and outlet check valves.

Regular Price: $5,372.32

Special Price $2,389.99

CDS John Blue

Details

Details

The John Blue 2-piston, semi-hydraulic, Diaphragm Pump is ideal for gardening, small sprayers, washers, and liquid transfer. It's compact and lightweight and can be driven by PTO, electric motor, or gasoline engine, depending on your specific application needs. All wetted parts are plastic coated to withstand today's agricultural and industrial chemicals. The diaphragms are constructed from chemical resistant elastomers for excellent corrosion resistance.

Features & Benefits:

Low-Pressure Poly Diaphragm Pumps
  1. The heads are designed with a patented technology that includes an aluminum die-cast core inside a polypropylene structure offering superior strength.
  2. Washers and diaphragm bolts are in 316 stainless steel, an exclusive feature.
  3. Die cast crankcase incorporating a new cooling system.
  4. New chemically resistant diaphragm material pre-deformed to reduce the amount of deflection, increasing diaphragm life. The diaphragm material is compatible with most of the corrosive chemicals on the market today.
  5. A short crankshaft stroke means the longest life possible.
  6. New connecting rods in special bronze alloy offer economical and trouble free service.
  7. 316 stainless steel inlet and outlet check valves.

Additional Info

Additional Info

SKU A7277500
Manufacturer CDS John Blue
Manufacturer Part # DP-687-P
Weight (lbs.) 85.8
Material Aluminum Poly
Instruction Manual John Blue DP-687-P Instruction Manual
Technical Specifications John Blue DP-687-P Product Specifications
Gasket Material Viton
Inlet 2" HB Inlet
Outlet 1" NPT Outlet
Horsepower 9.4
Maximum (RPM) 550
Maximum Temperature (F°) 140
Maximum Flow Rate (GPM) 68.7
Maximum Pressure (PSI) 218
Part Breakdown DP-687-P Part Breakdown

 

Reference Number Part Number Description Required
1DP-62004000ADSDIAPHRAGM - DURAMAX6
1DP-62004036HPS PISTON DIAPHRAGM6
2DP-28990597SS VALVE ASSY12
3DP-80331450O-RING 4, 5 X 40 VITON12
4DP-28022932VALVE ASSY SPACER6
5DP-80320930O-RING 2, 62 X 42, 52 VITON6
6DP-62002532HEAD6
7DP-84384500WASHER 13 X 24 X 2, 524
8DP-86406850SCREW M12 X 7524
9DP-82007000WING NUT G.1-1/2"1
10DP-8405610090 DEGREE ELBOW CONN.1
11DP-14003032PIPE MANIFOLD G. 3/8"1
12DP-80321915O-RING 3.0 X 30 VITON1
13DP-14002932PIPE MANIFOLD8
14DP-80326450O-RING 3, 53 X 44, 04, VITON12
15DP-85257710CAP, G.3/8" + OR2
16DP-14003132PIPE MANIFOLD G 1-1/2"1
17DP-14000109CRANKCASE1
18DP-80214310OIL SEAL 35 X 52 X 72
19DP-81286700BALL BEARING 35 X 80 X 211
20DP-14001601SHAFT SPACER2
21DP-14001576CONROD RING2
22DP-14002711CONROD RING6
23DP-14000926CRANKSHAFT1
24DP-82406600GASKET1
25DP-86369465SCREW M12X201
26DP-14001861MOUNTING RAIL2
27DP-81468930NUT M123
28DP-86413910SCREW M12 X 1603
29DP-81287600BALL BEARING 35 X 100 X 251
30DP-91011072COVER GASKET1
31DP-14001109COVER1
32DP-86256220SCREW M8 X 206
34DP-86268250SCREW M8 X 252
35DP-31146832PLAIN SAFETY CONE1
36DP-80320915O-RING 2, 62 X 40.95, VITON2
37DP-8406100090 DEGREE ELBOW CONNECTOR1
38DP-82012000WING NUT G.2"1
39DP-84369700WASHER 8, 4 X 18 X 224
40DP-86304405SCREW M8 X 9024
41DP-14003232PIPE MANIFOLD G2"1
43DP-14011732BOWL OIL FILLER1
44DP-84358500WASHER 8, 4 X 18 X 22
45DP-86216800SCREW M6 X 222
46DP-28014432OIL FILLER CAP1
47DP-62981197KIT, SCREW/DISK6
48DP-62001901PISTON SLEEVE6
49DP-81854000PISTON RING DIA. 786
50DP-62001809PISTON DIA. 786
51DP-80002100RING DIA. 1512
52DP-85200670PISTON PIN DIA. 156
53DP-80320900O-RING1
54DP-80136900RING DIA. 521
55SC-85116100PIN D.4 X 4524
56DP-41001731DIAPHRAGM OIL FILLER1
57DP-14011632SPACER1
58DP-14988897OIL FILLER KIT1
59DP-14004232PIPE MANIFOLD G. 1"F1
60DP-85272000CAP G.11
61DP-80320650O-RING 2, 62 X 28, 25 VITON1