Standardized, zero-tolerance valve interfaces for universal compatibility. We machine ISO 4401-compliant subplates in CETOP 3, 5, 7, and 8 sizes to guarantee bolt-pattern and port compatibility with all major directional control valves.
CETOP (Comité Européen des Transmissions Oléohydrauliques et Pneumatiques) is the European standards body that established the ISO 4401 mounting interface for hydraulic directional control valves.
A CETOP manifold block — also called a subplate or valve base — is a precision-machined mounting platform that provides:
Because the mounting pattern is internationally standardized, an OEM can specify a Honeywell-manufactured CETOP 5 subplate and mount any CETOP 5 valve from any brand onto it without modification — a critical advantage for procurement flexibility and long-term spares availability.
ISO 4401 is a global standard. Any valve from any manufacturer labelled "CETOP 3", "CETOP 5", "NG6", or "NG10" will bolt directly to our corresponding subplate without modification.
Full compatibility with all Bosch Rexroth ISO 4401 valves.
Full compatibility with all Parker Hannifin ISO 4401 valves.
Full compatibility with all Vickers ISO 4401 valves.
Full compatibility with all Yuken ISO 4401 valves.
Full compatibility with all Wandfluh ISO 4401 valves.
Full compatibility with all Atos ISO 4401 valves.
Our CETOP subplates are manufactured to guarantee zero-leak valve seating under cyclic operating conditions.
| Parameter | Value |
|---|---|
| Standards Compliance | ISO 4401 (CETOP 3, 5, 7, 8) |
| Materials | Aluminium 6061-T6, ST52 Steel, EN8 Steel |
| Pressure Rating | Aluminium: Up to 210 Bar. Steel: Up to 315 Bar |
| Mounting Face Finish | Ra 0.8 µm or finer |
| Port Thread Options | BSPP (G), NPT, SAE O-Ring Boss |
| Surface Treatment | Anodize (Al), Zinc Plate, Black Oxide (Steel) |
| Custom Modifications | Additional pilot ports, relief valve cavities, gauge ports |
| Testing | 100% hydrostatic at 1.5x WP |
Understanding the correct CETOP size for your system flow requirement is fundamental to avoiding pressure drops. A mismatched CETOP size causes catastrophic fluid velocity in the internal galleries, generating heat and destroying the valve. Always size by flow rate, not by convenience.
| Standard | ISO 4401 Size | Nominal Flow | Working Pressure | Port Thread | Applications |
|---|---|---|---|---|---|
| CETOP 3 | NG6 | Up to 40 LPM | Up to 315 Bar | G3/8" BSPP | Small cylinders, light automation |
| CETOP 5 | NG10 | Up to 120 LPM | Up to 315 Bar | G1/2" BSPP | Medium industrial automation |
| CETOP 7 | NG16 | Up to 250 LPM | Up to 315 Bar | G3/4" BSPP | Heavy presses, large actuators |
| CETOP 8 | NG22 | Up to 400+ LPM | Up to 315 Bar | G1" BSPP | Very high-flow industrial systems |
The A and B work ports exit from the same face as the system P and T ports. This is the most common configuration for simple, single-cylinder circuits.
A taller body design intended to allow additional modular sandwich plates (pressure-reducing, flow-control, or check-valve plates) to be stacked between the subbase and the directional valve. This provides additional circuit flexibility without adding external pipework.
A single elongated body machined to accept 2, 3, 4, or more CETOP valves in a parallel arrangement, sharing common P and T galleries while providing individual A and B work ports per station.
Press Machine Builder — Vatva GIDC, Ahmedabad
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Honeywell CETOP Manifold Blocks are manufactured at our ISO-certified facility in Ahmedabad, Gujarat. We supply directly to OEMs, machine builders, and industries across India with reliable factory-direct delivery and custom engineering support.
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Eliminate valve interface incompatibility and specify precisely manufactured, ISO 4401 certified CETOP subplates from Honeywell Hydraulics.