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Danfoss / Eaton Integrated Hydraulics 4SK1403S3

Description & Features

Rated to 350 bar (5000 psi) with a flow capacity of 140 litres per minute, this poppet-style check valve is built for demanding mobile and industrial hydraulic circuits. The Danfoss / Eaton Integrated Hydraulics 4SK1403S3 belongs to the Vickers 4SK140 Series and is designed for use in harvesters, refuse haulers, and a wide range of mobile and industrial equipment.

Low spring settings support high operational efficiency, making this valve well suited to systems where consistent, reliable non-return flow control is a priority. The poppet design provides positive sealing and durable long-term performance across varied duty cycles.

SKU: 401AA00021A

Supplier Part Number (MPN): 401AA00021ASP

Alternate Part Numbers: 4SK1403S3

Specifications

Actuator Type Pilot Operated	Cavity A20094	Configuration Poppet	Dimensions 3.62 in L x 1.75 in W x 1.75 in H	Mounting Type Screw-In	Number of Ports/Ways 3-Way	Operation Pilot Operated	Operator Type Pilot Operated	Packing Material Buna-N	Pilot Ratio 3:1	Seal Material Nitrile	Series 4SK140 Series	Softgoods Material Buna-N	Style Poppet

Product Questions & Answers (1)

Question by: Bobby C on Apr 9, 2025, 8:44 PM

Got a refuse hauler that needs a reliable check valve rated for 5000 psi. This the one?

Answer by: Customer Support on Apr 11, 2025, 6:32 AM

For a refuse hauler running at that pressure, the 4SK1403S3 fits right in. It's rated to 350 bar, which works out to 5000 psi, and it handles up to 140 litres per minute of flow. The poppet-style design gives you positive sealing so you're not dealing with backflow creep under load. It's actually listed for refuse hauler applications specifically, so you're in the right place with this one.

Danfoss / Eaton Integrated Hydraulics 4SK1403S3

Description & Features

Specifications

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Product Questions & Answers (1)