Graco 571169 Manuale utente

Instructions

Direct Mount Vent

Valve for G3 Pumps

Used to reduce system pressure and allow injector to reset. For professional use only.

Part No. Right Side Mount Models:

12 VDC, NPT - 571169, 24M478; 24 VDC, NPT - 571170, 24M479, 25C652

12 VDC, BSPP - 571171, 24M481; 24 VDC, BSPP - 571172, 24M482

Models

115 VAC, NPT - 24M480

115 VAC, BSPP - 24M483

230 VAC, NPT - 24N182

230 VAC, BSPP - 24M484

Part No. Left Side Mount Models:

230 VAC, NPT - 24T178

24 VDC, NPT - 25A211

Maximum Working Pressure: 3500 psi (241 bar, 24

MPa)

Important Safety Instructions

Read all warnings and instructions in this

manual and the G3 Pump instruction manual

included with your unit. Save these instructions.

3A1963G

Instructions

23A1963G

Instructions

Warnings

Also see the G3 Pump Instruction manual for additional

warnings.

Pressure Relief Valves

The pressure relief valve

uses a pressure adjustment

screw (a) to set the pres-

sure release point. It is not

intended as a way to

relieve pressure during

normal operation but as a

protective measure in the

event there is an unin-

tended pressure increase in

the system.

NOTE:

•Do not use this pressure relief valve as a means

of relieving pressure in day-to-day, normal cycle

operation. Use the pressure relief procedure

described on page 3 of this manual to relieve

pressure during normal cycle operation.

•The pressure relief valve included in this kit can

only be used with the Graco G3 Pump. It is not

intended for use with any other products.

•Factory set to 4000 psi (275.8 bar, 27.6 MPa).

The pressure adjustment screw (a) will require periodic

adjustments. Whenever the valve is set/adjusted (after

the set point is found) it is important to ensure that the

valve is not bottomed out and there is at least 1/2 turn of

adjustment remaining. This is determined by turning the

screw (a) 1/2 turn and then back turning it out again.

NOTE: Turning adjustment screw (a) clockwise,

increases pressure.

ELECTRIC SHOCK HAZARD

This equipment must be grounded.Improper grounding,

setup, or usage of the system can cause electric shock.

• Turn off and disconnect power cord before servicing

equipment.

• Connect only to grounded electrical outlets.

• Use only 3-wire extension cords.

• Ensure ground prongs are intact on power and

extension cords.

• Do not expose to rain. Store indoors

SKIN INJECTION HAZARD

High-pressure fluid from dispense device, hose leaks, or

ruptured components will pierce skin. This may look like

just a cut, but it is a serious injury that can result in

amputation. Get immediate surgical treatment.

Follow Pressure Relief Procedure in this manual,

when you stop dispensing and before cleaning, check-

ing, or servicing equipment.

locking

nut

Instructions

3A1963G 3

Installation

Pressure Relief

Relieve pressure in system by using two wrenches

working in opposite directions on pump element and

pump element fitting to only loosen fitting.

NOTE: When loosening pump element fitting, do NOT

loosen pump element. Loosening pump element will

change the output volume.

Vent Valve Installation

Reference numbers used in these instructions corre-

spond to parts included in Kit and are provided on page

6. Parts identified with an alpha character are user pro-

vided or already installed components.

1. Disconnect power source.

2. If unit has already been in service, relieve pres-

sure.

3. Be sure the two o-rings (8, 9) are correctly installed

on the bolt (7) as shown in FIG. 2.

4. Remove plug from G3 and install vent valve align-

ment bolt (7) in it’s place as shown in FIG. 3. Torque

to 30 in. lbs. (0.2 N.m).

FIG. 1

ti14711

FIG. 2

FIG. 3

ti17729

ti17732

Instructions

43A1963G

5. Grease o-ring (6) and install in block opening (1a)

as shown in FIG. 4.

6. Be sure o-ring (5) is installed on bolt (4) as shown in

FIG. 5.

7. Install vent valve mounting bolt (4) through hole (1b)

in block (1) and into G3 pump (FIG. 5). Tighten

mounting bolt (4) securely then torque to 35 ft. lbs.

(47.45 N.m).

NOTE: System connection is made through primary

outlet (4a).

8. Plug (10) can be removed to install a pressure

gauge or to use this port as an outlet.

Step 9 applies to models 571169, 571170, 571171,

571172 only. All other models skip this step and

continue instructions with Step 10.

9. Connect end of cable (13) to the G3 (FIG. 7).

NOTE: To verify the correct port on the G3 is

selected, locate the symbol shown in FIG. 7 on the

G3 label.

FIG. 4:

FIG. 5: Right Side Installation Shown

ti17733

FIG. 6

FIG. 7

ti17730

Vent Valve

Symbol

ti15593

Instructions

3A1963G 5

10. Connect cable connector (13) to solenoid valve (a)

(FIG. 8).

11. For G3 Max models only, see the G3 Pump instruc-

tion manual for Vent Valve Timer Setup instructions.

NOTE: For all other externally controlled G3 pump

models, see your separate controller instructions.

Parts

Right Side Installation Shown

Left Side Installation Shown (Ref. 13 not shown)

FIG. 8

ti17731

Parts

63A1963G

Parts

Graco Part No. 24N402 (Cable, 6 ft, vent valve, 2 pin) is available for use with this pump model.

† Graco Part No. 123358 (Cable, DIN, bar lead, power 15 ft.) is available for use with this pump model.

Quantity used with G3 Max Pump Quantity Used with G3 No Control and Pro Pump

Ref. Description

571169

571170

571171

571172

25A211

24M478

24M479

24M480

24N182

24M481

24M482

24M483

24M484

24T178

25C652

MANIFOLD, vent

valve, 12 VDC,

N.C. DEU, NPT

MANIFOLD, vent

valve, 24 VDC,

N.C. DEU, NPT

MANIFOLD, vent

valve, 12 VDC,

N.C. DEU, BSPP

MANIFOLD, vent

valve, 24 VDC,

N.C. DEU, BSPP

MANIFOLD, vent

valve, 12 VDC,

N.O. DEU, NPT

MANIFOLD, vent

valve, 24 VDC,

N.O. DEU, NPT

MANIFOLD, vent

valve, 115 VAC,

N.O. DIN NPT

MANIFOLD, vent

valve, 230 VAC,

N.O. DIN NPT

MANIFOLD, vent

valve, 24 VDC,

N.O. DIN, NPT

MANIFOLD, vent

valve, 12 VDC,

N.O. DEU, BSPP

MANIFOLD, vent

valve, 24 VDC,

N.O. DEU, BSPP

MANIFOLD, vent

valve, 115 VAC,

N.O. DIN, BSPP

MANIFOLD, vent

valve, 230 VAC,

N.O. DIN, BSPP

3VALVE, pressure

relief 1 1 1 1 1 111111111

BOLT, vent valve,

NPT 11 11111 11

BOLT, vent valve

mount, BSPP 1 1 1 1111

5O-RING,908 1 1 1 1 1 1111111111

6O-RING,015 1 1 1 1 1 1111111111

7BOLT,ventvalve1 1 1 1 1 1111111111

8O-RING,012 1 1 1 1 1 1111111111

9O-RING,014 1 1 1 1 1 1111111111

10PLUG,1/4,hexhd1 1 1 1 1 1111111111

13 CABLE, 6 ft, 2 pin 1 1 1 1 1  †† ††††

14 CABLE, 19”, 2 pin 1

Technical Data

3A1963G 7

Technical Data

* AC service coils are internally rectified and can be used in 50 or 60 Cycle (Hz) lines.

NOTE: AC voltage service with transient surges over 1000 volts may require a varistor to be placed in parallel with

the coil.

NOTE: Normally open versions of the vent valve are not recommended for use with oil and a pump that outputs less

than 1.5 cu. in./min.

DIRECT MOUNT VENT VALVE FOR G3 PUMPS

US Metric

Maximum working pressure 3500 psi 24 MPa, 241 bar

Pressure Relief Valve

Factory Set Pressure 4000 psi + 10% 27.6 MPa, 275.8 bar + 10%

Reset Pressure 80% of pressure

Relief Rate 0.13 gallons/sec @3000 psi 0.57 liters/sec @21 MPa. 207 bar

Solenoid Valve

Flow Up to 5 gpm (18.9 lpm)

Materials of Construction

Wetted materials on all models zinc plated steel, carbon steel, 6061 T6 aluminum, fluoroelastomer,

polyurethane

Weight 37.72 oz. 1069.5 grams

Solenoid Coil Resistance (DC) @ 68°F (20°C )

(Ohms)

Initial Current Draw (Amps)

12 Volt DC 7.2 1.67

24 Volt DC 28.8 0.83

115 AC* 568 0.17

230 AC* 2304 0.09

All written and visual data contained in this document reflects the latest product information available at the time of publication.

Graco reserves the right to make changes at any time without notice.

For patent information, see www.graco.com/patents.

Original instructions. This manual contains English. MM 3A1963

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

www.graco.com

Revision G, November 2020

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