Operation, Pressure Relief Procedure, Startup

Operation

Pressure Relief Procedure

WARNING

INJECTION HAZARD

The equipment stays pressurized until pressure is manually relieved. To

reduce the risk of serious injury from pressurized fluid, fluid from the valve or splashing fluid, follow this procedure whenever you

DAre instructed to relieve pressure

DStop dispensing

DCheck, clean or service any system equipment

DInstall or clean dispensing devices

1.Close the pump air regulator and the bleed-type master air valve (required in your system).

2.Hold a metal part of the dispensing valve firmly to a grounded metal waste container and trigger the valve to relieve the fluid pressure.

Startup

1.If there are multiple pumps on the air line, close the air regulators and bleed-type master air valves to all but one pump. If there is only one pump, close its air regulator and bleed-type master air valve.

2.Open the master air valve from the compressor.

3.Open the dispensing valve into a grounded metal waste container, making firm metal-to-metal contact between the container and valve. Open the bleed-type master air valve and open the pump air regulator slowly, just until the pump is running. When the pump is primed and all air has been pushed out of the lines, close the dispense valve.

4.If you have more than one pump, repeat this procedure for each pump.

NOTE: When the pump is primed, and with sufficient air supplied, the pump starts when the dispensing valve is opened and shuts off when it is closed.

5.Set the air pressure to each pump at the lowest pressure needed to get the desired results.

WARNING

COMPONENT RUPTURE HAZARD The maximum working pressure of each

component in the system may not be the same. To reduce the risk of

overpressurizing any component in the system, be sure you know the maximum working pressure of each component. Never exceed the maximum working pressure of the lowest rated component in the system. Overpressurizing any component can result in rupture, fire, explosion, property damage, and serious injury.

The pump has a rated ratio of 50:1. However, it is capable of reaching stall pressures equal to 60 times the air input pressure. Calculate the fluid output pressure using the air regulator reading. Multiply the air pressure shown on the regulator gauge by 60. For example:

140 psi air x 60 = 8400 psi fluid output

0.97MPa air x 60 = 58.2 MPa fluid output

9.7bar air x 60 = 582 bar fluid output

Regulate air to the pump so that no air line or fluid line component or accessory is overpressurized.

6.Never allow the pump to run dry of the material being pumped.

CAUTION

A dry pump will quickly accelerate to a high speed, possibly damaging itself. If your pump accelerates quickly, or is running too fast, stop it immediately and check the material supply. If the supply container is empty and air has been pumped into the lines, prime the pump and lines with material, or flush it and leave it filled with a compatible solvent. Be sure to elimi- nate all air from the material lines.

NOTE: A pump runaway valve (G) can be installed on the air line to automatically shut off the pump if it starts to run too fast.

7.Read and follow the instructions supplied with each component in your system.

8.To shut off the system, always follow the Pressure Relief Procedure at the left.

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