GRACO 563171 - Valve Relief Indicator O-Ring 1000 PSI, 1/8" Npsf w/o-Ring

Automatic Relief Indicator that pinpoints lube line blockage while allowing the lube system to continue supplying lubrication to points that are not blocked. Used primarily in secondary divider valves, with excessive pressure from line blockage moving a piston to enable lubricant escape through a vent, then spring resets the piston when blockage is removed.

Specifications

• Thread: 1/8 in NPSF w/O-Ring
• Max Working Pressure: 69 bar
• Material: 303 SST
• Seal Type: O-Ring
• Fitting Type: MHH, MSP and MXP
• Retainer Color: Green (1,000 psi rating)
• Color: Green

Features

• O-ring seal design
• Automatic pressure relief indication
• Visual pressure monitoring
• Pinpoints lube line blockage
• Allows lube system to continue operating when one point is blocked
• Automatic pressure relief through vent operation

Applications

• Pressure monitoring systems
• Automatic relief indication
• Industrial fluid handling equipment
• Secondary divider valves
• Lubrication systems requiring blockage detection
• Systems where continuous operation is critical

Compatible Equipment

• MJ series equipment
• MS series equipment
• MH series equipment
• MXP series equipment
• MHH fittings
• MSP fittings

Related Parts

• 563170 - Valve Relief Indicator O-Ring 750 PSI, 1/8" NPTF
• 563172 - Valve Relief Indicator O-ring 1250 psi
• 563173 - Valve Relief Indicator O-ring 1500 psi
• 563174 - Valve Relief Indicator O-ring 2000 psi
• 563175 - Valve Relief Indicator O-ring 2500 psi
• 563176 - Valve Relief Indicator O-Ring 3000 PSI, 1/8" Npsf w/o-Ring
• 563163 - 750 psi version
• 563164 - 1,000 psi version (1/8 NPTF MJ)
• 563165 - 1, 250 psi version
• 563166 - 1,500 psi version

Part of a series of automatic relief indicators with O-ring seals available in different pressure ratings from 52 bar to 207 bar Part of Trabon Performance Indicators product line. Should be used with separate pressure switch for audible or visual alarm. Green retainer color indicates 1,000 psi rating. This is an Automatic Relief Indicator component that pinpoints lube line blockage but allows the lube system to continue supplying lubricant to points that are not blocked. Color provided for service not in selection of replacement indicator.

Reference Manuals

• 339427 (Page 22) Automatic Lubrication Systems
• L15401EN - C (Page 2)
• 312497 (Page 39) Trabon Divider Valves .