FilterChem™ Pressure Relief Valves

These two-port pressure relief valves are designed to prevent excessive line pressure. The valves have an easily adjustable nut with a threaded screw to set the correct line pressure. As the line pressure reaches the valve's set pressure, the valve opens to relieve the excess pressure.

  • PVC or polypropylene body
  • FKM O-rings
  • No metal contact with fluid
  • 1/4" PVC valves (25285 & 25286) have a hex body; All others have a round body
  • 1/4" miniature-style valves have a side inlet and bottom outlet
  • 1/2" & 3/4" valves have a side inlet & side outlet
  • Prevents excessive line pressure with by-pass
  • Pressure relief is easily adjustable; Lock nut secures settings
  • Top entry for easy in-line maintenance
Item # Description Catalog Pg. Price Add to Cart
1/4" Threaded Gray PVC Pressure Relief Valve - 15 psi to 75 psi
Item 25285
270.2/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
270.2/Each
1/4" Threaded Gray PVC Pressure Relief Valve - 60 psi to 120 psi
Item 25286
315.03/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
315.03/Each
1/2" Threaded Gray PVC Pressure Relief Valve - 10 psi to 80 psi
Item 25287
433.8/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
433.8/Each
1/2" Threaded Gray PVC Pressure Relief Valve - 15 psi to 125 psi
Item 25288
433.8/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
433.8/Each
3/4" Threaded Gray PVC Pressure Relief Valve - 5 psi to 80 psi
Item 25289
551.31/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
551.31/Each
1/4" Threaded Natural Polypropylene Pressure Relief Valve - 15 psi to 75 psi
Item 25290
310.2/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
310.2/Each
1/4" Threaded Natural Polypropylene Pressure Relief Valve - 60 psi to 120 psi
Item 25291
359.88/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
359.88/Each
1/2" Threaded Natural Polypropylene Pressure Relief Valve - 10 psi to 80 psi
Item 25292
498/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
498/Each
1/2" Threaded Natural Polypropylene Pressure Relief Valve - 15 psi to 125 psi
Item 25293
498/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
498/Each
3/4" Threaded Natural Polypropylene Pressure Relief Valve - 5 psi to 80 psi
Item 25294
633.72/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-506
633.72/Each