Accessories

Automatic Relief Indicator

Automatic Relief Indicators pinpoint lube line blockage but allow the lube system to continue to supply lubrication to points that are not blocked. They are used primarily in secondary divider valves. When needed, pressure is relieved through a vent. When pressure is relieved the spring resets the piston. Because these indicators permit the lube sys- tem to continue operating when a lube point is blocked, a separate pressure switch connected to an audible or visual alarm should be used to warn of high pressure.

 

 

 

Description

 

 

 

 

 

 

Pressure PSI

Color*

 

1/8” NPSF

 

1/8” NPTF

w/O-Ring

1/4” NPTF

 

 

MJ, MH, MS, MXP

MH, MS, MXP

MX Only

 

 

 

 

 

750 + 20%

Blue

563163

563170

563156

1000 + 20%

Green

563164

563171

563157

1250 + 20%

Yellow

563165

563172

NA

1500 + 20%

Red

563166

563173

563158

2000 + 20%

Orange

563167

563174

563159

2500 + 20%

Aluminum

563168

563175

563160

3000 + 24%

Purple

563169

563176

563161

*Color provided for reference only to aid in selection of replacement indicator. Indicators used to be identified by the color of the spring retainer located in the end of the indicator.

Rupture Indicator - MH Divider Valves Only

Rupture Indicators are only used on MH divider valve applications where lube system pressures exceed 2500 psi. The high pressure from a lube line blockage causes a disc to rupture. The lubricant then forces an indicator pin to protrude, locating the blockage. The high pressure backs up through the system and trips a switch to shut the system off. When the fault is corrected, the disc must be replaced the pin reset manually.

 

 

Description

 

 

 

 

 

 

Pressure PSI

1/8” - 27 NPTF

1/8” - 27 NPSF

Disc Color

Replacement Disc

w/O-Ring

3/8” Diameter

 

 

 

 

 

 

 

 

2800 + 20%

563228

563229

Green

557422

3700 + 20%

563220

563221

Yellow

557423

4600 + 20%

564355

563222

Red

557424

5500 + 20%

563223

563224

Orange

557425

6400 + 20%

563225

563226

Pink

557427

7300 + 20%

563227

NA

Blue

557428

8200 + 20%

NA

NA

Purple

557429

38

312497G

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Image 38
Graco 312497G important safety instructions Rupture Indicator MH Divider Valves Only