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Danfoss / Eaton Integrated Hydraulics 4SK303S

Alternate Part Numbers Alternate Part Number 4SK303S	Application Harvesters, refuse haulers, mobile and industrial applications	Brand Danfoss – Hydraulics	Brand Danfoss Power Solutions	Pack Size 1.00	UOM EA	Features 350 bar (5000 psi) & 227 L/min (60 USgpm)\|High operational efficiency\|Low spring settings	Flow Rate1 30 litre per minute	ICC SICV Check Valves	Language English	Net Pack Quantity Units EA	Product Width 0.87	Special Features None	Style Poppet	Sub Brand Vickers	Supplier Part Number 401AA00016A	Product Weight 0.39 lbs

Product Questions & Answers 2

Product Questions & Answers

What kind of check valve style is this, and does it hold up well under high pressure?

Question by: Kent C on Sep 8, 2025, 8:32 PM

Poppet-style construction is what you're getting here, and that matters for sealing. Unlike ball or disc designs, a poppet seats firmly against the port and gives you a positive seal even under sustained pressure. Rated to 350 bar (5,000 psi), this valve is built to hold its own in demanding circuits without bleeding back or losing directional control over time.

Answer by: Customer Support on Sep 10, 2025, 11:49 AM

Would this check valve be alright for a harvester application?

Question by: Hank W on Mar 8, 2026, 4:46 PM

It's definitely suitable; this poppet valve is used in harvesters and refuse haulers, along with other mobile and industrial hydraulic applications.

Answer by: Customer Support on Mar 10, 2026, 6:40 AM