Graco Inc 222700, 3500WB, 308584 Graco Waterborne Fluid Hose purchased separately, Introduction

Introduction

Graco Waterborne Fluid Hose (purchased separately)

A Graco waterborne fluid hose must be used between the voltage isolation system fluid outlet and the spray gun fluid inlet. This fluid hose consists of three layers (see Fig. 2):

DInner Hose Layer (EE): is a PTFE tube.

DConductive Hose Layer (DD): covers the PTFE tube.

DOuter Hose Jacket (FF): is a protective polyethyl- ene hose cover.

If a hose failure occurs, where the high voltage arcs through the inner hose layer (EE), the voltage will be discharged to ground through the conductive hose layer (DD). When properly installed, the conductive hose layer is grounded through its connection to the grounded safety fence or enclosure (CC). All areas of the fluid hose that are accessible to personnel must be covered by the outer hose jacket (FF) to avoid electric shock.

KEY-Fig. 2

DDConductive Hose Layer

EEInner Hose Layer

FFOuter Hose Jacket

CCGrounded Enclosure

 The portion of the inner hose layer (EE–PTFE tube) that is not covered by the conductive hose layer (DD), must be inside the safety fence or enclosure (CC).

 The areas of the waterbase fluid hose that are accessible to personnel during normal operation must be covered by the outer hose jacket (FF).

 EE DD FF 

CC

H2O PRO Voltage Block connection shown

05179

Fig. 2

8308584