Graco 232-504 Instructions-Parts List Manual
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Graco 232-504 Instructions-Parts List Manual

Air-operated diaphragm pumps
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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
POLYPROPYLENE AND KYNAR
Husky
Diaphragm Pumps
120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure
120 psi (0.8 MPa, 8 bar) Maximum Air Input Pressure
*Model No. DF2–
*Model No. DF5–
Model No. 232–504 Private-Label Polypropylene 2150 Pump (See page 24.)
* NOTE: Refer to the Pump Matrix on page 24 to
determine the Model No. of your pump.
US Patent No. 5,368,452.
Other US and Foreign Patents Pending.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
2150 Air-Operated
Polypropylene Pumps
Kynar Pumps
http://www.graco.com
COPYRIGHT 1995, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
308–550
Supersedes Rev. G
First choice when
quality counts.
Rev. H

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Summary of Contents for Graco 232-504

  • Page 1 * NOTE: Refer to the Pump Matrix on page 24 to determine the Model No. of your pump. US Patent No. 5,368,452. Other US and Foreign Patents Pending. GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 http://www.graco.com COPYRIGHT 1995, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
  • Page 2 Read all instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor. Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
  • Page 3 WARNING WARNING TOXIC FLUID HAZARD Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed. Know the specific hazards of the fluid you are using. Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local, state and national guidelines.

  • Page 4: Installation

    (106, 112) and the cover screws (107, 108). See nents. Contact your Graco distributor or Graco pages 18, 19, and 20 for torque specifications. Technical Assistance (see back page) for assis- tance in planning a system to suit your needs.
  • Page 5 Installation Grounding (continued) To reduce the risk of static sparking, ground the pump All solvent pails used when flushing: Follow the and all other equipment used or located in the pumping local code. Use only metal pails, which are conduc- area.
  • Page 6 Installation Air Line b. Locate one bleed-type master air valve (B) close to the pump and use it to relieve trapped air. See the WARNING at left. Locate the other WARNING master air valve (E) upstream from all air line accessories and use it to isolate them during A bleed-type master air valve (B) is required in cleaning and repair.

  • Page 7: Fluid Outlet Line

    Installation Mountings 2. If the fluid inlet pressure to the pump is more than 25% of the outlet working pressure, the ball check valves will not close fast enough, resulting in CAUTION inefficient pump operation. The pump exhaust air may contain contaminants. 3.

  • Page 8: Flange Connections

    Installation Flange Connections 1. Place a flat washer (E) on each bolt (C). Refer to Fig. 3. The fluid inlet and outlet ports are 2” raised face, standard 150 lb class pipe flanges. Connect 2” flanged 2. Align the holes in the gasket (B) and the pipe plastic pipe to the pump as follows.

  • Page 9: Changing The Orientation Of The Fluid Inlet And Outlet Ports

    Installation Changing the Orientation of the Fluid Inlet Fluid Pressure Relief Valve and Outlet Ports CAUTION The pump is shipped with the fluid inlet (R) and outlet (S) ports facing the same direction. See Fig. 4. To Some systems may require installation of a pres- change the orientation of the inlet and/or outlet port: sure relief valve at the pump outlet to prevent overpressurization and rupture of the pump or...

  • Page 10: Air Exhaust Ventilation

    Installation Air Exhaust Ventilation The air exhaust port is 3/4 npt(f). Do not restrict the air exhaust port. Excessive exhaust restriction can cause erratic pump operation. WARNING FIRE AND EXPLOSION HAZARD To provide a remote exhaust: Be sure to read and follow the warnings and precautions regarding TOXIC FLUID HAZARD, and FIRE OR EXPLO- 1.
  • Page 11 Notes...

  • Page 12: Operation

    Operation Pressure Relief Procedure 1. Be sure the pump is properly grounded. Refer to Grounding on page 4. WARNING 2. Check all fittings to be sure they are tight. Be sure to use a compatible liquid thread sealant on all PRESSURIZED EQUIPMENT HAZARD male threads.

  • Page 13: Flushing And Storage

    Maintenance Lubrication Tightening Threaded Connections The air valve is designed to operate unlubricated. Before each use, check all hoses for wear or damage However, if lubrication is desired, every 500 hours of and replace as necessary. Check to be sure all operation (or monthly) remove the hose from the pump threaded connections are tight and leak-free.

  • Page 14: Troubleshooting

    Troubleshooting 1. Relieve the pressure before checking or servicing WARNING the equipment. To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the 2. Check all possible problems and causes before Pressure Relief Procedure on page 12. disassembling the pump.
  • Page 15 Troubleshooting PROBLEM CAUSE SOLUTION Fluid in exhaust air. Diaphragm ruptured. Replace. See pages 19–21. Loose fluid side diaphragm plate Tighten or replace. See pages (105). 19–21. Pump exhausts excessive air at Worn air valve block (7), o-ring (6), Inspect; replace. See pages 16–17. stall.

  • Page 16: Repairing The Air Valve

    Service Repairing the Air Valve Tools Required Torque wrench Torx screwdriver or 8 mm (or 5/16”) socket wrench Needle-nose pliers O-ring pick Lithium base grease NOTE: Air Valve Repair Kit 236–273 is available. Refer to page 27. Parts included in the kit are marked with a symbol, for example (4 ).
  • Page 17 Service Reassembly Install with lips facing Insert narrow end first. narrow end of piston (11). 1. If you removed the bearings (12, 15), install new Grease. Insert wide end first. ones as explained on page 22. Reassemble the fluid section. 2.

  • Page 18: Ball Check Valve Repair

    Service Ball Check Valve Repair Torque to 80–90 in–lb (9–10 N.m). Tools Required Arrow (A) must point toward outlet manifold (103). Torque wrench Not used on some models. 10 mm socket wrench O-ring pick Disassembly NOTE: A Fluid Section Repair Kit is available. Refer to page 25 to order the correct kit for your pump.

  • Page 19: Diaphragm Repair

    Service Diaphragm Repair WARNING Tools Required To reduce the risk of serious injury whenever you Torque wrench are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 12. 13 mm socket wrench Adjustable wrench 19 mm socket wrench 1.
  • Page 20 Service 4. Unscrew one outer plate (105) from the diaphragm Reassembly shaft (24). Remove one diaphragm (401), and the 1. Grease the shaft u-cup packings (402*) and install them so the lips face out of the housing (1). See inner plate (104). See Fig. 13. Fig.
  • Page 21 Service 402* 403* 401* Cutaway V iew , with Diaphragms in Place Cutaway V iew , with Diaphragms Removed 401* 403* Lips face out of housing (1). Air Side must face center housing (1). Grease. Used on Models with Teflon diaphragms only. Apply medium-strength (blue) Loctite or equivalent.

  • Page 22: Bearing And Air Gasket Removal

    Service Bearing and Air Gasket Removal 7. Use a bearing puller to remove the diaphragm shaft bearings (19), air valve bearings (12) or pilot Tools Required pin bearings (15). Do not remove undamaged bearings. Torque wrench 10 mm socket wrench 8.
  • Page 23 Service Insert bearings tapered end first. Press-fit bearings flush with surface of center housing (1). Torque to 130–150 in–lb (15–17 N.m). Detail of Air V alve Bearings Fig. 14...

  • Page 24: Pump Matrix

    Pump Matrix Husky 2150 Polypropylene and Kynar Pumps, Series A Your Model No. is marked on the pump’s serial plate. To determine the Model No. of your pump from the following matrix, select the six digits which describe your pump, working from left to right. The first digit is always D, designating Husky diaphragm pumps.

  • Page 25: Repair Kit Matrix

    Repair Kit Matrix For Husky 2150 Polypropylene and Kynar Pumps, Series A Repair Kits may be ordered separately. To repair the air valve, order Part No. 236–273 (see page 27). Parts included in the Air Valve Repair Kit are marked with a symbol in the parts list, for example (4 ). To repair your pump, select the six digits which describe your pump from the following matrix, working from left to right.

  • Page 26: Air Motor Parts List (Matrix Column 2)

    Parts Air Motor Parts List (Matrix Column 2) Fluid Section Parts List (Matrix Column 3) Ref. Ref. Digit Part No. Description Digit Part No. Description 189–793 COVER, fluid; 188–838 HOUSING, center; alum. polypropylene 188–854 COVER, air valve; alum. 189–787 MANIFOLD, inlet; polypropylene 114–023 SCREW;...
  • Page 27 Parts 401* 301* 403* 201* 202* *402 20 21 *301 *201 202* Not used on some models. * These parts are included in the Pump Repair Kit, which may be purchased separately . Refer to the Repair Kit Matrix on page 25 to determine the correct kit for your pump. These parts are included in Air Valve Repair Kit 236–273, which may be purchased separately.

  • Page 28: Diaphragm Parts List (Matrix Column 6)

    Parts Seat Parts List (Matrix Column 4) Diaphragm Parts List (Matrix Column 6) Ref. Ref. Digit Part No. Description Digit Part No. Description 201* 189–288 SEAT; 316 stainless steel 401* 189–296 DIAPHRAGM, backup; Santoprene 202* 112–358 O-RING; Teflon 402* 112–181 PACKING, u-cup;...
  • Page 29 Dimensions FRONT VIEW 8.69 in. 11 in. (220.5 mm) (280.5 mm) 1/2 npt(f) 3/4 npt(f) Air Inlet 25.75 in. Air Exhaust (654 mm) (muffler included) 22.75 in. (578 mm) 19.25 in. (489 mm) 13.3 in. (350.5 mm) 3.5 in. (89 mm) 6.0 in.

  • Page 30: Technical Data

    Technical Data Maximum fluid working pressure ..............120 psi (0.8 MPa, 8 bar) Air pressure operating range...

  • Page 31: Performance Chart

    Performance Chart Example of Finding Pump Air Consumption and Air Pressure at a Specific Fluid Delivery and Discharge Head: To supply 60 gpm (227 liters) fluid flow (horizontal scale) at 40 psi (0.28 MPa, 2.8 bar) discharge head pressure (vertical scale) re- quires approximately 60 scfm (1.68 m /min) air consumption at 70 psi (0.48 MPa, 4.8 bar) inlet air pressure.

  • Page 32: Manual Change Summary

    Graco distributor to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.

This manual is also suitable for:

Husky 2150Df2Df5232504

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