NG6 Valve Core: The Heart of Hydraulic Directional Valves

NG6 valve core is a key component in hydraulic directional control valves. Learn how NG6 cores work and see a real project example from an industrial hydraulic valve manufacturer.

March 15, 2026

Lucy Liu

Lucy Liu is the founder of Yutung Industrial with over 15 years of experience in custom metal casting and industrial component manufacturing. She works with global customers on precision casting parts, hydraulic valve components, plastic injection products, and PVC or rubber extrusion parts used in industrial machinery and equipment.

Real Project Experience

In one of our projects for an Indian hydraulic valve manufacturer, the customer ordered NG6 directional control valves based on their own design drawings.

During production, we found that the diameter of the valve core required by the customer was different from the standard NG6 specification. However, due to a communication error, the standard valve core was shipped together with the valves.

To solve the issue quickly and avoid delays in the customer’s production schedule, we supplied our standard NG6 valve core assembly to match the valve body. After testing, the valves operated normally and the customer successfully completed their equipment installation.

You can see the related valve project here: 4WEH16 Hydraulic Directional Control Valve

Valve Core Types for NG6 (4WEH6) and NG16 (4WEH16) Hydraulic Valves

directional spool valve symbols

NG6 (4WEH6) Valve

Valve body

NG6 hydraulic valve manufacturer

Valve core

Y core for 4WEH6 — Y

W core for 4WEH6 — Y

V NG6 hydraulic valve core

V type

Customize valve core for NG6 hydraulic valve — Customized valve core

Customize valve core for NG6 hydraulic valves — Customized valve core

NG16 (4WEH16) Valve

Valve body

NG16 hydraulic valve manufacture

Valve core

G core for 4WEH16 — G Type

For any questions about hydraulic valve cores or directional valves, feel free to contact us here. lucyliu1976@gmail.com

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