FilterChem™ Pressure Relief Valves

Designed to protect systems from excessive pressure, this 2-port relief valve delivers reliable, adjustable performance across a wide range of applications. The threaded stem and locknut allow for easy, precise setting of the desired relief pressure. The valve begins to open as pressure approaches the set point, reaching full flow at maximum relief, ensuring smooth, consistent pressure control. Engineered with no metal contact in the wetted path, this valve is well-suited for corrosive chemicals and harsh solutions. The top-entry design allows for convenient in-line maintenance, minimizing downtime. Available in multiple sizes to accommodate a variety of pressure ranges and system requirements. EPDM or Kalrez O-rings are available by special order; contact us for a quote.

PVC or polypropylene body
Viton™ 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
Item 25285	1/4" Threaded Gray PVC Pressure Relief Valve - 15 psi to 75 psi 296.33/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	296.33/Each Drop Ship
Item 25286	1/4" Threaded Gray PVC Pressure Relief Valve - 60 psi to 120 psi 345.49/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	345.49/Each Drop Ship
Item 25287	1/2" Threaded Gray PVC Pressure Relief Valve - 10 psi to 80 psi 475.74/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	475.74/Each Drop Ship
Item 25288	1/2" Threaded Gray PVC Pressure Relief Valve - 15 psi to 125 psi 475.74/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	475.74/Each Drop Ship
Item 25289	3/4" Threaded Gray PVC Pressure Relief Valve - 5 psi to 80 psi 604.63/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	604.63/Each Drop Ship
Item 25290	1/4" Threaded Natural Polypropylene Pressure Relief Valve - 15 psi to 75 psi 340.2/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	340.2/Each Drop Ship
Item 25291	1/4" Threaded Natural Polypropylene Pressure Relief Valve - 60 psi to 120 psi 394.68/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	394.68/Each Drop Ship
Item 25292	1/2" Threaded Natural Polypropylene Pressure Relief Valve - 10 psi to 80 psi 546.16/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	546.16/Each Drop Ship
Item 25293	1/2" Threaded Natural Polypropylene Pressure Relief Valve - 15 psi to 125 psi 546.16/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	546.16/Each Drop Ship
Item 25294	3/4" Threaded Natural Polypropylene Pressure Relief Valve - 5 psi to 80 psi 694.99/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-574	694.99/Each Drop Ship

Note: Product testing for individual applications is recommended before use. U.S. Plastic Corp. cannot be held liable for individual application failures.