Graco Inc 24C933, 313872B, 257999, 24C934, 24C932, TI14450a Models, Orifice Flow Area Ratio Chart

Page 4

Models

Models

 

Purge Rod

 

 

 

Diameter

Orifice Size

 

Part

in. (mm)

in. (mm)

Handle Type

 

 

 

 

 

 

 

 

257999

0.250 (6.35)

0.031 (0.79)

Handheld

 

 

 

 

24C932

0.250 (6.35)

0.031 (0.79)

Auto

 

 

 

 

24C933

0.375 (9.53)

0.047 (1.2)

Handheld

 

 

 

 

24C934

0.375 (9.53)

0.047 (1.2)

Auto

 

 

 

 

Orifice Flow Area Ratio Chart

In general, flow area ratio should be equal to material ratio but will be influenced by material viscosity. The ideal flow area ratio is dependent on flow rates, material viscosity, and material ratio. Choose the correct size orifices to equal- ize fluid pressures at the proportioner.

Available Orifice Flow Area Ratios

Dia-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

meter

0.016

0.020

0.024

0.028

0.031

0.035

0.039

0.042

0.047

0.052

0.055

0.060

0.063

0.067

0.073

0.086

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flowrate

0.016

1.0

1.6

2.3

3.1

3.8

4.8

5.9

6.9

8.6

10.6

11.8

14.1

15.5

17.5

20.8

28.9

 

0.020

1.6

1.0

1.4

2.0

2.4

3.1

3.8

4.4

5.5

6.8

7.6

9.0

9.9

11.2

13.3

18.5

 

0.024

2.3

1.4

1.0

1.4

1.7

2.1

2.6

3.1

3.8

4.7

5.3

6.3

6.9

7.8

9.3

12.8

 

0.028

3.1

2.0

1.4

1.0

1.2

1.6

1.9

2.3

2.8

3.4

3.9

4.6

5.1

5.7

6.8

9.4

Increases

0.031

3.8

2.4

1.7

1.2

1.0

1.3

1.6

1.8

2.3

2.8

3.1

3.7

4.1

4.7

5.5

7.7

 

0.035

4.8

3.1

2.1

1.6

1.3

1.0

1.2

1.4

1.8

2.2

2.5

2.9

3.2

3.7

4.4

6.0

 

0.039

5.9

3.8

2.6

1.9

1.6

1.2

1.0

1.2

1.5

1.8

2.0

2.4

2.6

3.0

3.5

4.9

as

0.042

6.9

4.4

3.1

2.3

1.8

1.4

1.2

1.0

1.3

1.5

1.7

2.0

2.3

2.5

3.0

4.2

Diameter

0.055

11.8

7.6

5.3

3.9

3.1

2.5

2.0

1.7

1.4

1.1

1.0

1.2

1.3

1.5

1.8

2.4

0.047

8.6

5.5

3.8

2.8

2.3

1.8

1.5

1.3

1.0

1.2

1.4

1.6

1.8

2.0

2.4

3.3

 

0.052

10.6

6.8

4.7

3.4

2.8

2.2

1.8

1.5

1.2

1.0

1.1

1.3

1.5

1.7

2.0

2.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Increases=>

0.060

14.1

9.0

6.3

4.6

3.7

2.9

2.4

2.0

1.6

1.3

1.2

1.0

1.1

1.2

1.5

2.1

 

0.063

15.5

9.9

6.9

5.1

4.1

3.2

2.6

2.3

1.8

1.5

1.3

1.1

1.0

1.1

1.3

1.9

 

0.067

17.5

11.2

7.8

5.7

4.7

3.7

3.0

2.5

2.0

1.7

1.5

1.2

1.1

1.0

1.2

1.6

 

0.073

20.8

13.3

9.3

6.8

5.5

4.4

3.5

3.0

2.4

2.0

1.8

1.5

1.3

1.2

1.0

1.4

 

0.086

28.9

18.5

12.8

9.4

7.7

6.0

4.9

4.2

3.3

2.7

2.4

2.1

1.9

1.6

1.4

1.0

 

 

 

 

 

 

Flowrate

Increases as Diameter Increases =>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

313872B

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Page 3 Page 5
Contents Important Safety Instructions EP GunContents Related Manuals Orifice Flow Area Ratio Chart ModelsFixed Orifice Flowrate Data EP Fixed Orifice Flow DataOrifice Diameter Variable Orifice Flowrate DataFlowrate gpm Variable Orifice Flowrate Data 1500 PSI Variable Orifice Flowrate Data 2000 PSI Toxic Fluid or Fumes Hazard Fire and Explosion Hazard Important Two-Component Material Information Changing Materials Red and B Blue ComponentsPiston Safety Lock Throat Seal LiquidGrounding Trigger LockLoss of Air Pressure Hook SupportHook Support 313872B Component Identification KeyCutaway View Gun Triggered Fluid Pouring Theory of OperationGun Detriggered Setup Perform Bleed Throat Seal Liquid Cartridge pro- cedure. See Adjust OrificesOrder to increase the pressure, turn the needle clockwise Follow Pressure Relief Procedure, Optional Hose PositionPressure Relief Procedure Perform Pressure Relief Procedure on ShutdownShort Term Shutdown Long Term ShutdownMaintenance Supplied Tool KitLubrication Bleed Throat Seal Liquid CartridgeClean Outside of Gun Flush GunClean Fluid Manifold Clean Breather PlugFollow Pressure Relief Procedure Clean Check Valves Follow Pressure Relief Procedure on Clean Fluid Housing PassagesRemove Front End, see Clean Orifice Replace Mix Chamber and Front Seal Perform Replace Throat Seal Liquid Cartridge,Tools Required RepairReplace Throat Seal Liquid Cartridge Perform Bleed Throat Seal Liquid Cartridge pro- cedure, see Perform Pressure Relief Procedure, Remove Front EndDisassemble Front End Assemble Front EndAttach Front End See Attach Front End procedurePistons and Bulkhead Access Pistons Bulkhead Shaft Purge Rod Solenoid Valve 26-3.39 Nm. See Component Identification onTroubleshooting Problem Cause SolutionProblem Cause Solution Electrical Diagram Parts Model 257999 ShownOrifice, Auto Hand-Held RingOrifice, Auto Hand-Held See Orifice KitsKits on Orifice 24C751 Orifice Housing 24C756 Ring 24C805 24C815 Kits Kits Located inside back cap Impingement Kit Type and Kit Number Orifice KitsModel Iso Model Polyol Orifice Kit Kit Drill Bit Qty Orifice Size Number Drill Bit KitsKit Illustration Complete O-ring Placement Guide Ref PartAccessories Solvent Flush Pail Kit Solvent Flush Canister Kit248299 5.0 gal liter Pail Technical Data Models without Handle 6.4 lb 2.9 kgDimensions Ref Dimension, in. mmTechnical Data 313872B Graco Standard Warranty Graco Information
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