Graco 3A0733H User Manual

Instructions and Parts

SaniForce™ 6:1

Sanitary

3A0733H

Pumps

For use in sanitary applications to transfer medium to high viscosity ﬂuids. For professional use only.

Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions.

Model 24E836

Model 24G740

PROVEN QUALITY. LEADING TECHNOLOGY.

ti15637a

ti15721a

Contents

Models............................................................... 3

Warnings ........................................................... 5

......................................................................... 5

Installation.......................................................... 7

Grounding ................................................... 7

Mounting ..................................................... 7

Setup .......................................................... 7

Operation........................................................... 9

Pressure Relief Procedure............................ 9

Flush Before First Use.................................. 9

Adjusting the Pump Speed and

Pressure ........................................ 9

Pump Shut Down ......................................... 9

Maintenance ...................................................... 10

Flushing Procedure ...................................... 10

Cleaning...................................................... 10

Tighten Threaded Connections..................... 10

Troubleshooting.................................................. 11

Priming P

iston Service ........................................ 12

Disconn Disasse

ect the Pump ................................... 12

mble the Pump................................. 12

Reassemble After Cleaning .......................... 13

Double Ball Service ............................................ 14

Disconnect the Pump ................................... 14

Disassemble the Pump................................. 15

Reassemble After Cleaning .......................... 15

Parts.................................................................. 16

Kits.................................................................... 17

Priming Piston Displacement Pump Models

24G747 and 24G746 ............................. 18

Double bal

Double-Ball Displacement Pump Models

Notes ............................................................... 24

Product D

Performance chart .............................................. 26

Technical Data ...................................................27

Graco St

l Displacement Pump Models 24G748, 24

24G750 ................................................ 20

24G752 and 24G751 ............................. 22

imensions............................................ 25

andard Warranty.................................... 28

G749, 24G753, and

3A0733H

Models

Maximum Air In

let Pressure: 100 psi (0.7 MPa, 6.9 bar)

Maximum Fluid

Pump Model

24E836

24E837

24E838

24E839

24E840

24F942

24G739 24G747

24G740 24G748

Displacement Pump Model

24G746

24G751

24G752

24G753

24G749

24G750

Working Pressure: 650 psi (4.5 MPa, 44.8 bar)

Pump Type Pump Length De

Priming Piston

Double Ball

Double Ball Drum Length PTFE

Double Ball Drum Length Buna-N, Nitrile, Nylon, and

Double Ball Bin Length Buna-N, Nitrile, Nylon, and

Priming Piston

Double Ball Drum Length, with Flange Buna-N, Nitrile, Nylon, and

Stubby

Stubby, with Flange

scription

Packings

Buna-N, Nitrile, Nylon, and Polychloroprene

PTFE

Buna-N, Polychloroprene, and UHMWPE

Polychloroprene

Buna-N, Polychl

Polychloroprene

Nitrile, Nylon, and

oroprene

3A0733H 3

Models

3A0733H

Warnings

The following warnings are for the setup, use, grounding, maintenance and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-speciﬁc risks. When these symbols appear in the body of this manual refer back to these Warnings. Product-speciﬁc hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

WARNING

SKIN INJECTION HAZARD

High-pressure ﬂuid from dispensing device, hose leaks, or ruptured components will pierce skin. This many look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.

• Do not point dispensing device at anyone or at any part of the body.

• Do not put your hand over the ﬂuid outlet.

• Do not stop or deﬂect leaks with you hand, body, glove, or rag.

• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or servicing equipment.

• Tighten all ﬂuid connections before operating the equipment.

• Check hoses and couplings daily. Replace work or damaged parts immediately.

MOVING PARTS HAZARD Moving parts can pinch, cut or amputate ﬁngers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure and disconnect all power sources.

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent ﬁre and explosion:

• Use equipment only in well ventilated area.

• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc).

• Keep work area free of debris, including solvent, rags and gasoline.

• Do not plug or unplug power cords, or turn light switches on or off when ﬂammable fumes are present.

• Ground all equipment in the work area. See Grounding instructions.

• Use Only grounded hoses.

• Hold gun ﬁrmly to side of grounded pail when triggering into pail.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem.

• Keep a working ﬁre extinguisher in the work area.

3A0733H 5

WARNING

EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury.

• Do not operat

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals.

• Use ﬂuids and solvents that are compatible with equipment wetted parts. See Technical Data in all equipment manuals. Read ﬂuid and solvent manufacturer’s warnings. For complete information about your material, request MSDS from distributor or retailer.

• Do not leave equipment

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.

• Do not alter or modify equipment.

• Use equip

• Route hoses and cables away from trafﬁc areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend hoses or use hoses to pull equipment.

•Keepchil

• Comply with all applicable safety regulations.

SPLATTER HAZARD Hot or toxic ﬂuid can cause serious injury if splashed in the eyes or on skin. During blow off of platen, splatter may occur.

• Use minimum air pressure when removing platen from drum.

TOXIC FLUID OR FUMES Toxic ﬂuids or fumes can cause serious injury or death if splashed in the eyesoronskin, inhaled, or swallowed.

e the unit when fatigued or under the inﬂuence of drugs or alcohol.

the work area while equipment is energized or under pressure. Turn off all

and follow the Pressure Relief Procedure when equipment is not in use.

ment only for its intended purpose. Call your distributor for information.

dren and animals away from work area.

• Read MSDSs to know the speciﬁc hazards of the ﬂuids you are using.

• Store hazardous ﬂuid in approved containers, and dispose of it according to applicable guidelines.

ONAL PROTECTIVE EQUIPMENT

PERS

ust wear appropriate protective equipment when operating, servicing, or when in the

You m

rating area of the equipment to help protect you from serious injury, including eye injury,

ope

ring loss, inhalation of toxic fumes, and burns. This equipment includes but is not limited to:

hea

• Protective eyewear, and hearing protection.

pirators, protective clothing, and gloves as recommended by the ﬂuid and solvent

•Res

ufacturer.

man

6 3A0733H

Installation

Grounding

The equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit.

Pump: Connect a ground wire (Graco PN 238909) to the ground screw on the bottom cover of the air motor, under the shield. Connect the other end of the ground wire to a true earth ground.

Air and ﬂuid hoses: use only electrically conductive hoses with a maximum of 500 ft. (150 m) combined hose length to ensure grounding continuity. Check electrical resistance of hoses. If total resistance to ground exceeds 25 megohms, replace hose immediately.

Air compressors: follow manufacturer’s recommendations.

Dispense valve: ground through connection to a properly grounded ﬂuid hose and pump.

Material supply container: follow local code.

Container(s) that receive material: follow local code.

Solvent pails used when ﬂushing: follow local code. Use only conductive metal pails, placed on a grounded surface. Do not place the pail on a nonconductive surface, such as paper or cardboard, which interrupts grounding continuity.

To maintain grounding continuity when ﬂushing or relieving pressure: hold metal part of the dispense valve ﬁrmly to the side of a grounded metal pail, then trigger the valve.

Mounting

Mount the pump weight of the p stress caused ﬂuid lines to s

To avoid serious injury, check the torque on the lift ring (19) and nut (18) before using the lift ring to lift the pump. Torque to 30–36 ft-lb (41–49 N•m).

on a surface than can support the ump and accessories, as well as the during operation. Do not use air or

upport the pump.

Setup

To avoid contaminating the ﬂuid, pipe the exhaust air to vent outside of the ﬂuid product area, away from people, animals, or food handling areas.

Note

Reference numbers and letters in parentheses in the text refer to the callouts in the ﬁgures and the parts drawings.

Accessories are available from Graco. Make certain all accessories are sized and pressure rated to meet your system requirements.

Fig 1 is only a guide for selecting and installing

system components and accessories. Contact your Graco distributor for assistance in designing a system to suit your particular needs.

Install a bleed-type master air valve (G) close to the pump air inlet (D), to relieve air trapped between it and the air motor.

Install an air ﬁlter/regulator (F) in the pump air line,

upstream from the bleed valve,

air inlet pressure and to remove harmful dirt and contaminants from your compressed air supply.

to control

3A0733H

Install a pump runaway valve (S) in the pump air line to shut off air to the air motor automatically if the pump starts to run too fast.

Install another bleed-type master air valve (G) upstream from all air line accessories and use it to isolate the accessories during cleaning and repair.

Installation

On the air drop to the dispense valve (K), install an air regulator (M) to control air pressure to the valve. Install a bleed valve (G) to use as a shutoff when servicing the dispense valve.

Main Air Line

Connect air solenoid valves (H) to a timer control (L), and set so the dispense valve (K) will dispense at proper intervals.

Figure

1 Typical Installation

Key

Pump C

C 3/4 npt Exhaust Air Outlet

D1/2

omponents (Included)

-Mounted Sanitary Pump

Bung

xhaust Mufﬂer (may alternately be mounted

Air E

tely, using exhaust hose)

remo

npt Air Inlet

1-1/2 in. Tube Size Flanged Fluid Outlet

m Components/Accessories (sold separately)

Syste

F Air Line Filter/Regulator

GBlee

JAir

KDis

MAi

NDi

d-Type Master Air Valve (required)

Air Solenoid Valve

Line Drain Pipe and Valve

pensing Valve

Timer Control

r Regulator

spensing Valve Air Exhaust Hose

Sensing Device

Pump Ground Wire (required)

ump Runaway Valve

TI15638B

8 3A0733H

Operation

NOTICE

Do not expose the air motor to temperatures higher than 120°F (49°C) or the immersed ﬂuid pump to temperatures higher than 250°F (121°C). Excessive temperatures may damage the pump packings and seals

Pressure Relief Procedure

Trappedaircancausethepumptocycle unexpectedly, which could result in serious injury from injection, splashing or moving parts. Relieve pressure when you stop pumping and before cleaning, checking, or servicing equipment.

Flushing Procedure, page 10. Check national, state,

and local codes for speciﬁc limitations.

Adjusting the Pump Speed and Pressure

Set pressure regulator to 0 psi. Open the bleed-type master air valve. Adjust the pump air regulator until the pump is running smoothly.

Allow the pump to cycle slowly until all air is pushed out of the lines (the ﬂuid will ﬂow in a steady stream from the ﬂuid outlet) and the pump is primed.

With the air supply turned on, the pump will start when the dispensing valve is opened and stall against pressure when the valve is closed. In a circulating system, the pump operates until the air supply is turned off.

NOTICE

Never allow the pump to run dry of ﬂuid. A dry pump will accelerate to a high speed, possibly damaging itself.

1. Shut off the air supply to the pump.

2. Close the bleed-type master air valve (required in system).

3. Open the ﬂuid ball valve and/or dispensing valve to relieve ﬂuid pressure.

Flush

The sanitary pump was assembled using sanitary lubricant on moving parts and was tested in water. Flush the pump thoroughly with an appropriate cleaning solution or disassemble and sanitize the parts before using the pump. See

Before First Use

If the pump accelerates quickly, or is running too fast, stop the pump immediately and check the ﬂuid supply. If the supply is empty and air has been pumped into the lines, reﬁll the container and prime the pump and lines with ﬂuid. Be sure to eliminate all air from the system.

Pump Shut Down

Follow the Pressure Relief Procedure, page 9 . Always stop the pump at the bottom of its stroke to prevent ﬂuid from drying on the displacement rod. (The air motor will exhaust at the bottom or top of the stroke.)

3A0733H 9

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