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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

Alternate Part Numbers Alternate Part Number 4SK1403S3	Application Harvesters, refuse haulers, mobile and industrial applications	Brand Danfoss – Hydraulics	Brand Char-Lynn	Pack Size 1.00	UOM EA	Features 350 bar (5000 psi) & 227 L/min (60 USgpm)\|High operational efficiency\|Low spring settings	Flow Rate1 140 litre per minute	ICC SICV Check Valves	Language English	Net Pack Quantity Units EA	Product Width 1.75	Special Features None	Style Poppet	Sub Brand Vickers	Supplier Part Number 401AA00021A	Product Weight 0.96 lbs

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.