Instruction Manual

ManualsBrandsPentair ManualsDiaphragm PumpsPENTAIR 9910-DP423 Medium Pressure Polypropylene Headed Diaphragm Pumps

Medium Pressure Polypropylene-Headed

Diaphragm Pumps

Form L-1385

Rev B

Installation, Operation, Repair, and Parts Manual

Description

Hypro polypropylene-headed diaphragm pumps are recommended for spraying herbicides, pesticides, liquid fertilizers,

and many other hard-to-handle uids. The specially designed inlet manifolds, outlet manifolds, and heads are all

polypropylene construction for the maximum in chemical resistance. Low-cost maintenance and almost wear-free

operation make these pumps ideal for a wide variety of spraying jobs. Pressure and output are designed for optimum

performance of small to medium sized sprayers.

These pumps feature valves of Kynar and 304 stainless steel construction for excellent wear life and independence

modular inlet and outlet manifolds for easy maintenance. Hypro polypropylene-headed diaphragm pumps can be adapted

for 1-3/8” 6 splined shaft, 1” solid shaft, or gear reduction drive options.

Model 9910-DP423

Model 9910-DP423GRGI

Max ow: 11 gpm

Max pressure: 290 psi (20 bar)

Max speed: 550 rpm (D423)

3600 rpm (D423GRGI)

3 diaphragms

Model 9910-DP573

Model 9910-DP573GRGI

Max ow: 15 GPM

Max pressure: 290 psi (20 bar)

Max speed: 550 rpm (DP573)

3 diaphragm

Model 9910-DP763

Model 9910-DP763GRGI

Max ow: 20 GPM

Max pressure: 290 psi (20 bar)

Max speed: 550 rpm (DP573)

3 diaphragm

Summary of content (20 pages)

PAGE 1
Medium Pressure Polypropylene-Headed Diaphragm Pumps Form L-1385 Rev B Installation, Operation, Repair, and Parts Manual Description Hypro polypropylene-headed diaphragm pumps are recommended for spraying herbicides, pesticides, liquid fertilizers, and many other hard-to-handle fluids. The specially designed inlet manifolds, outlet manifolds, and heads are all polypropylene construction for the maximum in chemical resistance.
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General Safety Information Notes are used to notify of installation, operation, or maintenance information that is important but not safety related. Caution is used to indicate the presence of a hazard, which will or can cause minor injury or property damage if the notice is ignored.
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Installation Pump Plumbing Diaphragm Pump Connection Use only pipe, fittings, accessories, hose, etc. rated for the maximum pressure rating of the pump. 1. Always mount pump with oil sight tube in upright position (See Figure A). 2. The proper selection of hose type and size is vital to optimal performance. a. Use good quality inlet hose, compatible with the fluids being pumped and with good elasticity to reduce inlet water hammer or pulsation.
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Installation Instructions for Gear Reduction Kit 9910-KIT31086 Hypro recommends a blue thread locking compound on all threaded fasteners that do not require lock washers. Shaft key needs to be inspected occasionally and replaced if worn. The 9910-KIT31086 gear reducer is designed for direct mounting the 9910-DP423, 9910-DP523 & 9910-DP763 diaphragm pump onto a 5 hp gasoline engine with a flange mounting and 3/4” solid shaft. 1. Lubricate the gasket (Ref. 1) in the pump adapter flange (Ref. 3).
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Hypro recommends a blue thread locking compound on all threaded fasteners that do not require lock washers. 1. Locate the discharge manifold on the 9910-DP423, 9910-DP573 & 9910-DP763 (Ref. 68). With o-rings (Ref. 53) lubricated and in position on control valve body (Ref. 52), plug into discharge manifold. Lock into place with retainer clip (Ref. 60). 2. Connect bypass hose to elbow (Ref. 45) and run unrestricted to supply tank. 3. Connect the desired number of high pressure hoses to the outlet hose barbs.
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Maintenance Instructions 1. After usage, flush the pump with clean water. 2. Hypro diaphragm pumps come with oil in the crankcase. Hypro recommends changing oil after 40 hours of break-in operation and every three months or 500 hours, whichever comes first. Use Hypro oil (part number 21600038). Hypro oil is a specially formulated, high-grade, non-detergent, SAE 30 weight oil formulated to prolong pump life.
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Discharge Manifold: 1. Using a 13 mm socket, remove (9) manifold mounting bolts. DO NOT USE IMPACT GUN ON MOUNTING BOLTS. 2. Pull or gently pry away the manifold from the pump heads (Fig. 6). Do this so the valve pilots are completely free from the pump heads. 3. It should not be necessary to split the manifold to access the valves as was done with the inlet manifold. 4. Remove the discharge valves for service or replacement. This can usually be done by hand (Fig. 7) but use external pliers if necessary.
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Hazardous Substance Alert Maintenance Schedule REGULAR SERVICE PERIOD Performed at every indicated month or operating hour interval, whichever comes first.
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PERFORMANCE CHARTS DP 423 Pressure in PSI and BAR GPM HP GPM HP GPM HP GPM HP GPM HP LPM HP LPM HP LPM HP LPM HP LPM HP 0 PSI 7.5 0.18 8.5 0.20 9.4 0.29 10.5 0.35 11.5 0.42 0 BAR 28.3 0.18 32.2 0.20 35.6 0.29 39.5 0.35 43.3 0.42 @ 350 RPM @ 400 RPM @ 450 RPM @ 500 RPM @ 550 RPM 72 PSI 7.3 0.46 8.3 0.53 9.2 0.61 10.2 0.68 11.0 0.77 5 BAR 27.4 0.46 31.2 0.53 34.6 0.61 38.5 0.68 41.5 0.77 145 PSI 7.2 0.77 8.2 0.87 9.1 0.98 10.1 1.
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Hydraulic Motor Kit 9910-KIT55375 Ref. No. Part Number Description 1 9910-740450 Bolt Qty 1 2 9910-391470 Washer 1 3 9910-3120700 Hydraulic Motor Flange 1 4 9910-620320 Bolt 4 5 9910-3120780 Hydraulic Motor Joint D 1” 1 6 9910-2280950 Key 1 Ref. No. Description Tightening Torque In. Lbs. Nm. 1 Bolt 221 25 4 Bolt 221 25 Pulley Mounting Kit 9910-KIT42610 Ref. No.
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Gearbox 9910-KIT31086 Ref. No. Part Number Description Qty. Ref. No. In. Lbs. Nm.
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Model 9910-GS25 22 23 24 14 15 2 28 1 3 29 4 19 31 5 4 18 20 21 6 17 44 7 26 18 39 9 36 32 25 8 16 30 27 10 37 38 12 13 33 34 35 11 1-1 Ref. No. Part Number Description Qty. Ref. No. 1 9910-110131 Part Number Description Hose Barb 1 21 9910-550540 Ring Nut 1 2 3 9910-130492 Ball Valve 1 22 9910-1880220 Adjustment Knob 1 9910-3120421 Threaded Adapter 1 23 9910-3120370 Spring 4 1 See O-ring Kits O-ring 4 24 9910-1880210 Relief Lever 1 Qty.
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Model 9910-GS35 Ref. No. Part Number Description Qty. Ref. No. Part Number Description Qty.
PAGE 14
Models 9910-DP423 and 9910-DP423GRGI Fig. 1 Fig. 2 6 7 1 5 5 22 12 17 16 18 19 6 3 2 2 2 2 2 2 3 8 10 21 13 11 4 15 14 2 2 11 26 28 71 25 9 2 2 2 2 4 27 1-1 25 3 Fig. 3 Fig. 4 2 31 39 68 40 20 41 30 2 3 11 2 29 10 72 20 3 37 9 10 35 70 8 6 4 11 2 7 6 34 2 7 33 4 31 72 37 1-3 32 2 38 Fig. 5 76 42 Fig.
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Models 9910-DP423 and 9910-DP423GRGI Ref. No.
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9910-DP573 AND 9910-DP573GRGI AND 9910-DP763 AND 9910-DP763GRGI Fig. 1 Fig. 5 Fig. 6 Fig. 2 Fig. 3 Fig. 7 Fig.
PAGE 17
9910-DP573 AND 9910-DP573GRGI AND 9910-DP763 AND 9910-DP763GRGI Ref. No.
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Operating Instructions SYMPTOM PROBABLE CAUSE(S) The pump does not draw water. One or more valves are seating improperly. Remove valve and check for debris. Remove any debris found. Examine the valve seatings and clean them. The liquid flow is irregular. CORRECTIVE ACTION Suction line in plugged or collapsed. Clogged strainer. Examine and clean the suction line. Clean the strainer. The charge in the pulsation dampener is incorrect. Check the pressure in the pulsation dampener.
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Limited Warranty on Hypro/Shurflo Agricultural Pumps & Accessories Hypro/Shurflo (hereafter, “Hypro”) agricultural products are warranted to be free of defects in material and workmanship under normal use for the time periods listed below, with proof of purchase. - Pumps: one (1) year from the date of manufacture, or one (1) year of use. This limited warranty will not exceed two (2) years, in any event. - Accessories: ninety (90) days of use.