What is the standard opening pressure and available optional settings for the Galvanized Steel Hydraulic Check Valve, Type FPR – Flow Shut-Off?

The Galvanized Steel Hydraulic Check Valve, Type FPR – Flow Shut-Off has a standard opening pressure of 0.5 bar. Optional opening pressure variants available are 3 bar, 6 bar, and 10 bar.

Can the Galvanized Steel Hydraulic Check Valve, Type FPR – Flow Shut-Off be installed in orientations other than A → A1 without affecting performance?

The Galvanized Steel Hydraulic Check Valve, Type FPR – Flow Shut-Off is designed and specified for flow direction A → A1. Installing it in any other orientation is not recommended because the valve’s internal geometry, sealing surfaces, and hardened stem are optimized for that specified flow path. Using a different orientation can compromise sealing performance, change opening behavior (including the calibrated opening pressure of 0.5 bar or optional 3, 6, 10 bar variants), increase wear, and reduce reliability across the rated temperature range (-30°C to +100°C). To ensure intended performance, durability, and safety, install the valve in the A → A1 orientation as specified.

Valve check for closing flow liquids hydraulic, steel galvanized, type FPR

All products, Directional control valves/

Additional information

Material	CS – steel (cast iron)

Valve check type FPR intended for closing flow liquids hydraulic in one direction and opening free flow liquids in direction opposite. standard pressure opening: 0.5 bar (available also 3, 6 and 10 bar). permissible direction flow A → A1. Material: steel galvanized (body), hardened steel (stem). sealing: metal-metal. Operating temperature: od -30°C up to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
DC-FPR-04	Check valve FPR 1/4" female	-	400	In stock	Enquiry
DC-FPR-04-10	Check valve FPR 1/4" female, 350 bar, pressure opening 10 bar	-	400	In stock	Enquiry
DC-FPR-06	Check valve FPR 3/8" female	-	400	In stock	Enquiry
DC-FPR-08	Check valve FPR 1/2" female	-	350	In stock	Enquiry
DC-FPR-12	Check valve FPR 3/4" female	-	300	In stock	Enquiry
DC-FPR-16	Check valve FPR 1" female	-	300	In stock	Enquiry
DC-FPR-20	Check valve FPR 1.1/4" female	-	250	In stock	Enquiry
DC-FPR-24	Check valve FPR 1.1/2" female	-	230	In stock	Enquiry

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Valve check type FPR intended for closing flow liquids hydraulic in one direction and opening free flow liquids in direction opposite. standard pressure opening: 0.5 bar (available also 3, 6 and 10 bar). permissible direction flow A → A1. Material: steel galvanized (body), hardened steel (stem). sealing: metal-metal. Operating temperature: od -30°C up to +100°C.