Skip to the beginning of the images gallery

Danfoss / Eaton Integrated Hydraulics 4CK301S3

Description & Features

Rated for 350 bar (5000 psi) and flows up to 227 L/min (60 USgpm), this poppet-style check valve is built for demanding mobile and industrial hydraulic circuits. Low spring settings support high operational efficiency across variable load conditions, making it well-suited for harvesters, refuse haulers, and similar mobile equipment.

The Danfoss / Eaton Integrated Hydraulics 4CK301S3 belongs to the Vickers 4CK30 Series of SICV check valves, distributed under the Danfoss Hydraulics brand. It is designed for reliable non-return flow control in applications where consistent pressure performance is critical.

SKU: 401AA00002A

Supplier Part Number (MPN): 401AA00002A

Alternate Part Numbers: 4CK301S3, C1MG44

Specifications

Actuator Type Pilot Operated	Dimensions 1.83 in L x 0.94 in W x 0.94 in H	Media Oil	Mounting Type Screw-In	Number of Ports/Ways 3-Way	Operator Type Pilot Operated	Packing Material Buna-N	Pilot Ratio 3:1	Seal Material Nitrile	Seat Material Buna-N	Series 4CK30 Series	Softgoods Material Nitrile	Style Poppet

Product Questions & Answers (2)

Question by: Merle S on Jun 26, 2025, 11:20 AM

What kind of applications does this check valve work for? I do a lot of harvester repair.

Answer by: Customer Support on Jun 27, 2025, 2:49 PM

Eaton Char-Lynn 4CK30 series check valves can be used in harvesters, as well as refuse haulers, and other mobile and industrial applications.

Question by: Ralph R on Aug 29, 2025, 11:37 AM

got a harvester that needs a check valve, is this 4CK301S3 the kind folks run on mobile equipment?

Answer by: Customer Support on Aug 30, 2025, 1:05 PM

Common use for it is on harvesters, refuse haulers, and other mobile or industrial hydraulic setups. It is a 4CK30 Series poppet style check valve, so it fits that one way flow, backflow blocking role those machines usually need.

Danfoss / Eaton Integrated Hydraulics 4CK301S3

Description & Features

Specifications

Related Documents

Product Questions & Answers (2)