Free-flow, nose-to-side check valves are on/off circuit components that allow free flow from the inlet (port 1) to the outlet (port 2) and block flow in the opposite direction.

• Two-port check valves share the same cavity for a given frame size, however, pay close attention as flow paths may be in opposite directions.
• Check valves offer extremely low leakage rates with a maximum leakage of less than 1 drop per minute (0,07 cc/min).
• Will accept 5000 psi (350 bar) at ports 1 and 2.
• Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
• Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP or /LH (see CONFIGURATION section). For further details, please see the Materials of Construction page.
• Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

Model CAD Files

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• K65 Ninety degree with reverse flow check
• K66 Ninety degree with reverse flow check - sequence
• K68 Ninety degree with reverse flow check - sequence
• K6D Ninety degree with reverse flow check - sequence
• K6E Ninety degree with reverse flow check - sequence
• K6F Ninety degree with reverse flow check - sequence
• K6L Ninety degree with reverse flow check - sequence
• K6M Ninety degree with reverse flow check - sequence
• K6N Ninety degree with reverse flow check - sequence
• K6Q Ninety degree with reverse flow check - sequence
• K6R Ninety degree with reverse flow check - sequence
• K6S Ninety degree with reverse flow check - sequence
• K6W Ninety degree with reverse flow check - sequence
• K6X Ninety degree with reverse flow check - sequence
• K6Y Ninety degree with reverse flow check - sequence
• KB2 ISO 08: Reducer on A with reverse flow check
• KB3 ISO 08: Reducer on B with reverse flow check
• LN5 Ninety degree with reverse flow check
• LN6 Ninety degree with reverse flow check
• LN8 Ninety degree with reverse flow check
• LND Ninety degree with reverse flow check
• LNE Ninety degree with reverse flow check
• LNF Ninety degree with reverse flow check
• LNL Ninety degree with reverse flow check
• LNM Ninety degree with reverse flow check
• LNN Ninety degree with reverse flow check
• LNQ Ninety degree with reverse flow check
• LNR Ninety degree with reverse flow check
• LNS Ninety degree with reverse flow check
• LNW Ninety degree with reverse flow check
• LNX Ninety degree with reverse flow check
• LNY Ninety degree with reverse flow check
• QB3 ISO 08: Reducer/reliever on B with reverse flow check and port 4 external
• Z3L ISO 08: Priority flow control on A with reverse flow check
• Z3M ISO 08: Priority flow control on B with reverse flow check
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