Low Pressure Poly Diaphragm Pump - 3/4" HB Inlet x 1/2" NPT Outlet

• 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.

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:

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.

Part Breakdown

 

Reference Number	Part Number	Description	Required
1	DP-94004031	PISTON DIAPHRAGM	2
2	DP-94982997	VALVE ASSY	4
3	DP-94030232	PUMP HEAD	2
4	DP-94986997	KIT INLET CAP	2
5	DP-82415450	GASKET	4
6	DP-94987897	KIT OUTLET CAP	2
8	DP-84052100	SUCTION CONNECTOR DIA 20	1
9	DP-80306050	0-RING, VITON, 1.78X12.42	1
10	DP-98986897	KIT INLET MANIFOLD	1
11	DP-82004210	WING NUT G.3/4	1
13	DP-94000809	CONROD	2
14	DP-94000701	PISTON SLEEVE	2
15	DP-94986797	KIT DAMPER BODY	1
17	DP-86160500	AIR VALVE	1
18	DP-94004131	DIAPHRAGM BALLASTER	1
19	DP-94000309	COVER BALLASTER TOP	1
20	DP-84368500	WASHER DIA . 8,2X15X1,5	4
21	DP-86294500	SCREW TCEI M8X60 UNI5931	2
24	DP-94986697	KIT OIL FILLER	1
28	DP-80643600	TAB 5,75X5X30	1
29	DP-94030109	CRANKCASE	1
32	DP-94033609	BEARING HOUSE	1
35	DP-86318500	SCREW M1OX16	4
36	DP-80126400	SNAP RING D.35	1
37	DP-81283700	BALL BEARING	1
38	DP-80217810	OIL SEAL	1
39	DP-94032609	BEARING HOUSING	1
40	DP-94033526	CRANKSHAFT	1
41	DP-86205900	SCREW TE M6X14	4
42	DP-94009961	MOUNTING RAIL	2
43	DP-86193460	SCREW TE M5X16	2
44	DP-31135751	SS OUTLET CONNECTOR	1
45	DP-80321710	0-RING, VITON, 3,0X14	1
46	DP-80308090	0-RING, D.1.78X82.27	1
47	DP-81268800	NEEDLE BEARING	1
48	DP-94002632	SPACER	1
49	DP-81252200	BALL BEARING	1
50	DP-94002732	SPACER	1
52	DP-94004776	CONROD RING	2
53	DP-80000300	SNAP RING DIA. 10	4
62	DP-85200400	PISTON PIN	2
63	DP-94001708	PISTON	2
64	DP-94990997	KIT DIAPHRAGM WASHER/SCREW	2
65	DP-86295100	SCREW TCEI M8X65	2
66	DP-86290000	SCREW TCEI M8X55	8
68	DP-94985597	KIT ROP OIL INDICATOR	1