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Inline check valve

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Description & Features

Part of the Eaton Aeroquip Gromelle R4000 Series, this carbon steel inline check valve coupling is designed for quick connect and disconnect without the need for special tools. Both ends feature 3/8 in. female NPT connections, making it straightforward to integrate into hydraulic circuits across a wide range of industrial and field applications.

Rated for use down to -4°F, this coupling exceeds ISO 16028 operating pressure requirements. It is suited for demanding environments including agriculture, construction, oil and gas, hydraulic tooling, and general fluid transfer applications.

SKU: RA0422000

Supplier Part Number (MPN): RA0422000

Specifications

Angle Shape
Straight
Body Material
Carbon Steel
Connection Type
FNPT
Dimensions
2.36 in L x 0.91 in W
End Gender 1
Female
End Gender 2
Female
Finish
Zinc Trivalent-Plated
Language
English
Nominal Size
3/8 in
Seal Material
NBR
Series
R4000 Series
Thread Sealant
Without Thread Sealant
Thread Size
3/8-18
Valve Type
1-Way

Product Questions & Answers (1)

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Question by: Cheryl W on Mar 8, 2026, 5:27 PM
What kind of stuff can I use this with?
Answer by: Customer Support on Mar 10, 2026, 7:11 AM
Common applications include agriculture, construction, hydraulic tools, general industry, fluid transfer, and oil and gas.

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