GRACO 563156 - Automatic Relief Indicator for Mx Divider Valves, 750 PSI, 1/4" NPTF

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, the excessive pressure created by line blockage moves a piston, enabling lubricant to escape through a vent. When normal pressure is restored, the spring resets the piston, allowing the lube system to keep operating even when a lube point is blocked.

Specifications

• Thread: 1/4 in NPTF
• Max Working Pressure: 52 bar, 750 psi
• Valve Type: MX Only
• Retainer Color: Blue (indicates 750 psi rating)
• Color: Blue

Features

• Pressure relief valve functionality
• 52 bar (750 psi) pressure rating
• Required component for specific pressure relief kits
• Pinpoints lube line blockage
• Allows lube system to continue operating when one point is blocked
• Automatic pressure relief through vent when blockage occurs

Applications

• Lubrication systems
• Overpressure protection
• G3 pump systems
• Secondary divider valves
• Lubrication systems requiring blockage detection
• Systems where continuous operation is critical even with partial blockage

Compatible Equipment

• 571058 - G-Series Pump Accessories Pressure Relief-to-Atmosphere Kit (Requires Pressure Relief Valve ) - Pressure Relief-to-Atmosphere Kit with 1/4" NPT outlet
• 571070 - G-Series Pump Accessories Pressure Relief Valve Adapter, 1/4 BSPP - Pressure Relief-to-Atmosphere Kit with 1/4" BSPP outlet
• MX divider valves (not MXP)
• 1/4 in NPTF threaded connections
• MX Divider Valves

Related Parts

• 563157 - Pressure Relief Valve - 69 bar, 1000 psi
• 563158 - Pressure Relief Valve - 103 bar, 1500 psi
• 563159 - Pressure Relief Valve - 138 bar, 2000 psi
• 563160 - Pressure Relief Valve - 172 bar, 2500 psi
• 563161 - Pressure Relief Valve - 207 bar, 3000 psi
• 571058 - G-Series Pump Accessories Pressure Relief-to-Atmosphere Kit (Requires Pressure Relief Valve )
• 571070 - G-Series Pump Accessories Pressure Relief Valve Adapter, 1/4 BSPP
• 563163 - Valve Relief 1/8 NPT 750 PSI, 1/8 NPTF
• 563164 - Valve Relief 1/8 NPT 1000 PSI, 1/8 NPTF

This is a component valve required for use with specific pressure relief-to-atmosphere kits, not a standalone product. Part of a family of pressure relief valves with different pressure ratings. Should be used with a separate pressure switch connected to audible or visual alarm to warn of high pressure. When replacing indicators with discontinued pressure ratings, select next higher available pressure rating. Automatic relief indicator pinpoints lube line blockage but allows the lube system to continue supplying lubricant to points that are not blocked. Used primarily in secondary divider valves. Excessive pressure created by line blockage moves a piston, enabling lubricant to escape through a vent. When pressure is relieved the spring resets the piston. Color coded by pressure - blue indicates 750 PSI rating.

Reference Manuals

• 340574 (Page 8)
• 340706 (Page 5)
• L15401EN-C (Page 2)
• 312497 (Page 39) Trabon Divider Valves .
• 332291 (Page 35) G3 Standard Automatic Lubrication Pump