Graco Inc Husky 239092 User Manual

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Instructions–PartsList

Huskyt750 and Huskyt2000

Surge Suppressors

308703G

ENG

For control of pressure fluctuations and acceleration loss, preventing cavitation. For professional use only.

120 psi (0.8 MPa, 8 bar) Maximum Air Input Pressure

120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure

See the Model Numbers on page 12.

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

06887

06891

06888

06892

06894

 

 

 

 

Model 239088 Model 239091

Model 239095

Model 239096 Model 239126

Table of Contents

Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Parts Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Parts Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . 18

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions.

WARNING

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

INSTRUCTIONS

DThis equipment is for professional use only.

DRead all instruction manuals, tags, and labels before operating the equipment.

DUse the equipment only for its intended purpose. If you are not sure, call your Graco distributor.

DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.

DCheck equipment daily. Repair or replace worn or damaged parts immediately.

DDo not exceed the maximum working pressure of the lowest rated component in your system. This equipment has a 120 psi (0.8 MPa, 8 bar) maximum working pressure and 120 psi (0.8 MPa,

8 bar) maximum incoming air pressure.

DSolvent Compatibility:

Use fluids and solvents which are compatible with the equipment wetted parts.

Use only compatible solvents to clean all plastic parts. Many solvents can degrade plastic parts to the point where they could fail.

Refer to the Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

DDo not use hoses to pull equipment.

DDo not lift pressurized equipment.

DComply with all applicable local, state, and national fire, electrical, and safety regulations.

DDo not operate outside the minimum and maximum operating temperature of your surge suppressor unit. See Minimum and Maximum Operating Temperatures on page 7.

2308703

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.

DKnow the specific hazards of the fluid you are using.

DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local, state and national guidelines.

DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and solvent manufacturer.

DPipe and dispose of the exhaust air safely, away from people, animals, and food handling areas. If the diaphragm fails, the fluid is exhausted along with the air.

DNever use an acetal pump to pump acids. Take precautions to avoid acid or acid fumes from contacting the pump housing exterior. Stainless steel parts will be damaged by exposure to acid spills and fumes.

FIRE AND EXPLOSION HAZARD

Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury.

DCharge the surge suppressor with compressed air or nitrogen only. Do not use oxygen. Such use could result in an explosion.

DNever pump flammable fluids with polypropylene units.

DGround the equipment. Refer to Grounding on pages 4 and 5.

DNever use a polypropylene pump or surge suppressor withnon-conductiveflammable fluids as specified by your local fire protection code. Refer toGrounding on pages 4 and 5 for additional information. Consult your fluid supplier to determine the conductivity or resistivity of your fluid.

DIf there is any static sparking or you feel an electric shock while using this equipment, stop pumping immediately. Do not use the equipment until you identify and correct the problem.

DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being pumped.

DPipe and dispose of the exhaust air safely, away from all sources of ignition.

DKeep the work area free of debris, including solvent, rags, and gasoline.

DElectrically disconnect all equipment in the work area.

DExtinguish all open flames or pilot lights in the work area.

DDo not smoke in the work area.

DDo not turn on or off any light switch in the work area while operating or if fumes are present.

DDo not operate a gasoline engine in the work area.

308703 3

Installation

Grounding

WARNING

FIRE AND EXPLOSION HAZARD

When pumping flammable fluids, the surge suppressor must be grounded. Before pumping, ground the system as explained below. Also read the section

FIRE OR EXPLOSION HAZARD on page 3.

Polypropylene surge suppressors are not conductive. Attaching the ground wire to the grounding lug grounds only the clamp or flange (see Fig. 1). When pumping conductive flammable fluids, always ground the entire fluid system by making sure the fluid has an electrical path to a true-earth ground.

To reduce the risk of static sparking, ground the surge suppressor and all other equipment in the pumping area. Check your local electrical code for detailed grounding instructions for your area and type of equipment. Ground all of this equipment:

DSurge suppressor: Attach a ground wire to the grounding lug (2) as shown in Fig. 1. Connect the clamp end of the ground wire to a true earth ground.To order a ground wire and clamp, order Part No. 222011.

NOTE: To connect the ground wire to the surge suppressor, first remove the copper connector from thenon-clampend of the ground wire and discard it, then push the bare wire through the grounding lug on the surge suppressor.

DFluid supply container: Follow your local code.

23

2

Fig. 1

NOTE: When pumping conductive flammable fluids with a surge suppressor,always ground the entire fluid system. See theWARNING at left. Fig. 2 shows recommended methods of grounding fluid containers during filling. These are only guides; contact your Graco distributor for assistance in grounding your system.

DAir compressor: Follow the manufacturer’s recommendations.

DSolvent pails used when flushing: Follow your local code. Use only grounded metal pails, which are conductive. Do not place the pail on a non-conductive surface, such as paper or cardboard, which interrupts the grounding continuity.

4308703

Installation

Grounding a Surge Suppressor

A Husky pump

B Husky surge suppressor H Fluid drain valve (required) S Dispense valve

T Fluid drain line

W Surge suppressor ground wire (required)

See page 4 for installation instructions.

Y Air motor ground wire (required) Z Container ground wire (required)

1 Hose must be conductive.

2

Dispense valve nozzle must be in

W

contact with the container.

 

 

A

Y

air supply connection

B

Z

1

H

T

2 S

Z

06895

2 S

1

air supply connection

H

B

T

W

Z

A

Y

Z

06896A

Fig. 2

308703 5

Installation

The installations in Fig. 2 are guides for selecting and installing system components. Contact your Graco distributor for assistance in planning a system to suit your needs.

Mounting Automatic and Manual Models

Be sure the mounting surface can support the weight of the pump, surge suppressor, hoses, and accessories, and the stress caused during operation.

DMount the surge suppressor as close to the pump discharge as possible and upstream of equipment such as valves, meters, filters, and so on. The surge suppressor should be installed within 10 pipe diameters of the pump discharge.

DIf you use a flexible connector from the pump to the piping system, the surge suppressor should be mounted to the pump discharge manifold, and the flexible connector should be attached to the surge suppressor tee and system piping.

DBecause pressure is equal in all directions, the surge suppressor can be installed in any position, but the vertical position shown in Fig. 2 is recommended for better draining. Fluids with high specific gravity or high viscosity, settling of heavy material, and possible air entrapment further limit the mounting positions other than those shown in Fig. 2.

NOTE: When you mount a plastic surge suppressor, do not overtighten by using a large pipe wrench near the threads of the fluid inlet. The housing may crack if tightened too much. Hand tightening is recommended.

Connecting Automatic Models

DConnect the 1/4-inair supply hose to the 1/4 npt connection on the top of the surge suppressor.

DThe air pressure to the surge suppressor must be greater than or equal to the pump discharge and/or system pressure. For equal air pressure, you can use a tee in the pump’s air supply line to run an air line to the surge suppressor.

DFor models with elastomer bladders, the tee must be located in the pump’s air supply line before any pump controller or instrumentation such as the filter, regulator, or pump control valve.

DFor models with PTFE bellows, the tee must be located in the pump’s air supply line after any pump controller or instrumentation such as the filter, regulator, or pump control valve.

Connecting Manual Models

DConnect the 1/4-inair supply hose to the brassone-waycheck valve on the top of the surge suppressor.

DThe air pressure to the surge suppressor must be greater than or equal to the pump discharge and/or system pressure. For equal air pressure, you can use a tee in the pump’s air supply line to run an air line to the surge suppressor.

DThe tee must be located in the pump’s air supply line before any pump controller or instrumentation such as the filter, regulator, or pump control valve.

6308703

Operation

Pressure Relief Procedure

WARNING

PRESSURIZED EQUIPMENT HAZARD

The equipment stays pressurized until pressure is manually relieved. To reduce the risk of serious injury from pressurized fluid, accidental spray from the dispensing device, or splashing fluid, follow this procedure whenever you

DAre instructed to relieve pressure

DStop pumping

DCheck, clean, or service any system equipment

DInstall or clean fluid nozzles

1.Stop pumping, and shut off the air to the pump.

2.Relieve pressure in the surge suppressor as follows:

D For automatic surge suppressors, remove the air pressure gauge, and allow any residual air pressure to escape.

D For manual surge suppressors, adjust the regulator to relieve the air pressure by dialing down the pressure.

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.

DRead TOXIC FLUID HAZARDon page 3.

DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

WARNING

FIRE AND EXPLOSION HAZARD

Charge the surge suppressor with compressed air or nitrogen only. Do not use oxygen.

Never pump flammable fluids with polypropylene units.

Charging the surge suppressor with oxygen or pumping flammable fluids with polypropylene units could cause a fire or an explosion.

Minimum and Maximum Operating

Temperatures

Find the minimum and maximum operating temperatures for your surge suppressor unit in the list below. These temperature limits are stated at zero gauge pressure.

Automatic Husky 750

239095 10_ to 180_ F (–12_to 82_ C) 239096 32_ to 175_ F (0_ to 79_ C) 239121 40_ to 175_ F (4_ to 79_ C) 239122 32_ to 175_ F (0_ to 79_ C) 239123 40_ to 220_ F (4_ to 104_ C) 239124–10_to 350_ F(–23_to 176_ C)

Automatic Husky 2000

239092 32_ to 175_ F (0_ to 79_ C) 239093 32_ to 175_ F (0_ to 79_ C) 239126 40_ to 175_ F (4_ to 79_ C) 239127 32_ to 175_ F (0_ to 79_ C) 239128 40_ to 175_ F (4_ to 79_ C)

Manual Husky 750

239090 10_ to 180_ F (–12_to 82_ C) 239091 32_ to 175_ F (0_ to 79_ C) 239129 40_ to 175_ F (4_ to 79_ C) 239130 32_ to 175_ F (0_ to 79_ C) 239131 40_ to 220_ F (4_ to 104_ C) 239132–10_to 350_ F(–23_to 176_ C)

Manual Husky 2000

239087 32_ to 175_ F (0_ to 79_ C) 239088 32_ to 175_ F (0_ to 79_ C) 239134 40_ to 175_ F (4_ to 79_ C) 239135 32_ to 175_ F (0_ to 79_ C) 239136 40_ to 175_ F (4_ to 79_ C)

308703 7

Operation

Charging and Startup

For optimum performance, surge suppressors should be charged to a pressure 2 to 10 psi (0.01 to 0.07 MPa, 0.1 to 0.7 bar) lower than system pressure.

Automatic Models

Manual Models

CAUTION

Automatic surge suppressors must have the air supply connected before you start pumping. Failure to do so could result in the internal air valve puncturing or rupturing the bladder.

The air pressure gauge (1) (See Parts Drawings on pages 14 and 15) on automatic surge suppressors remains at zero pressure even after the air line is connected, because the surge suppressor only allows air into the air chamber when it is required to dampen pulsation. After the air supply line is attached to theone-waycheck valve (8) and air is available, you can start the pump. No further adjustments are necessary.

NOTE: Automatic surge suppressors are not recommended for use as suction stabilizers at the pump inlet or as a surge suppressor at aquick-closingvalve. Adjustable surge suppressors should be used for such applications.

CAUTION

Manual surge suppressors must be charged before you start pumping. Failure to do so could result in the internal air valve puncturing or rupturing the bladder.

Before you start the pump, charge the surge suppressor with air line pressure.

1.Start the pump to generate system pressure.

2.As pressure increases to approach working pressure, gradually decrease the regulated air supply pressure into the surge suppressor by adjusting the regulator (4) (See Parts Drawings on pages 14 and 15).

3.Wait for up to one minute to allow the system to respond to the adjustment before you make any further adjustments. Generally, pulsation is most effectively minimized when the air supply to the surge suppressor is regulated to 2 to 10 psi (0.01 to 0.07 MPa, 0.1 to 0.7 bar) lower than system pressure.

8308703

Troubleshooting

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

Relieve the pressure before checking or servicing the equipment.

Check all possible problems and causes before disassembling the pump.

PROBLEM

CAUSE

SOLUTION

 

 

 

Surge suppressor does not hold

Manual or automatic models:

 

pressure.

–Leakingthreaded connections

–Checkall threads for leaks.

 

–Looseflange bolts or clamp

–SeeTorque Table, page 11.

 

–Failedbladder or bellows

–SeeBladder Failure, page 10.

 

–Blockedair line to unit

–Use1/4-inair line.

 

 

 

 

Automatic models only:

 

 

–One-wayvalve at air inlet is

–Arrowshould point toward surge

 

installed backwards.

suppressor.

 

–Gaugeshows no pressure,

–Pressuredoes not register on

 

and pump is not running.

gauge until pump is started.

 

 

 

 

Manual models only:

 

 

–Faultyregulator

–Checkregulator.

 

 

 

Dampening effect of surge

Surge suppressor installed incorrect

Surge suppressor should be

suppressor is not sufficient.

distance from pump

installed within 10 pipe diameters of

 

 

pump discharge.

 

 

 

 

Improper pressure charge

See Charging and Startup,

 

 

page 8. Surge suppressor

 

 

pressure should be 2 to 10 psi (0.01

 

 

to 0.07 MPa, 0.1 to 0.7 bar) lower

 

 

than system pressure.

 

 

 

 

Surge suppressor does not hold

See surge suppressor does not hold

 

pressure charge.

pressure in PROBLEM column.

 

 

 

 

Failed bladder or bellows

See Bladder Failure, page 10.

 

 

 

 

Surge suppressor too small for

Install larger surge suppressor.

 

pump

 

 

 

 

 

Automatic models only:

Remove pressure from surge

 

Plugged automatic valve

suppressor, and check automatic

 

 

valve for proper operation as

 

 

follows:

 

 

1. Leave air line attached to top

 

 

half of surge suppressor.

 

 

2. Fill top of surge suppressor

 

 

with enough water to cover

 

 

automatic valve.

 

 

There should be no bubbles.

 

 

3. Dump water out, and gently

 

 

push automatic valve.

 

 

Air should flow.

 

 

4. Replace automatic valve if

 

 

it is defective.

 

 

 

There is leaking around surge

PTFE sealing tape or paste is

Apply PTFE tape or paste to

suppressor fluid inlet.

needed on threads of fluid inlet.

threads. Do not overtighten plastic

 

 

models. Hand tightening is

 

 

recommended.

 

 

 

308703 9

Service

Bladder Failure

Normal life for bladders can be from a few months to several years, depending upon the harshness of the application. Below are common reasons for failed bladders or bellows:

DChemical attack: Check chemical compatibility charts. Consult your Graco distributor.

DCut bladder or bellows: Check for sharp objects that may have been introduced into the surge suppressor through pumped fluid.

DInsufficient compressed air charge in surge suppressor during operation: See Charging and Startup on page 8.

DSurge suppressor too small for the pump: An undersized surge suppressor will have premature bladder failure. Contact your Graco distributor for assistance in ensuring that you have the correct size surge suppressor.

Replacing Bladder or Bellows

1. Relieve the pressure.

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 7.

2.Remove the clamp band, ring flange, or bolts.

3.Remove the top housing of the surge suppressor.

4.Remove the old bladder or bellows, and replace it with the new bladder or bellows.

Make sure that you properly orient the parts:

D Install rubber bladders with the concave side facing the top housing, as shown in the Parts Drawings on page 14.

D Install PTFE bellows with the concave side facing the bottom housing, as shown in Model No. 239126 in the Parts Drawings on

page 15. Install the PTFE encapsulated fluoroelastomer o-ringson each side of the bellows.

5.Replace the top housing of the surge suppressor.

6.Replace the clamp band, ring flange, or bolts, and torque according to the torque specifications in the

Torque Table on page 11.

10 308703