PRV1-10 Series Direct-Acting Pressure Reducing (Relieving) Cartridge Valves, Up To 4 GPM & 2400 PSI

Description & Features

Application	Valve is normally open, allowing flow from port 2 to port 1. Port 3 is a drain and must be vented back to reservoir. Once the pressure setting is reached at port 1, the spool shifts to restrict the inlet flow at port 2. This regulates the pressure at port 1. If pressure at port 1 exceeds the predetermined setting of the valve, the spool will shift further and relieve excess pressure through port 3.
Cartridge	Model PRV1-10*, sold separately.
Features	The PRV1-10 is a direct acting, spool type screw-in cartridge pressure reducing/relieving valve, and requires a machined cavity or housing for installation.
Flow Rating	4 GPM.
Housing	Cavity size C-10-3, sold separately, see
Pressure Rating	2400 PSI (All ports).
Recommended Filtration	ISO 4406 Cleanliness Level 18/16/13 or cleaner.
Temperature Range	-40°F to 248°F (Extreme Limits).

Model Number	Part Number	Adjustment Style	Cracking Pressure (psi)	Pressure Setting	Housing	Seal Material	Price	Action
PRV1-10-S-0-24/ PRV1-10 Series Cartridge Valve	565886	Screw and locknut	400-2400	1400	None	Buna-N

Question by: Rex R on Dec 18, 2025, 3:28 PM

So this thing vents back to the reservoir, right? Just want to make sure I'm understanding it right.

Answer by: Customer Support on Dec 20, 2025, 1:23 PM

That's correct. Port 3 is a drain that needs to be vented back to the reservoir. It's how the valve relieves excess pressure.