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AO755 Series 1-Spool Monoblock Valve, 4-way 3-position, Tandem Center Spring Centered Spool

Description & Features

Experience reliability and precision with the AO755 Series 1-Spool Monoblock Valve 4-way 3-position Tandem Center Spring Centered Spool by Brand Hydraulics Inc. This valve is designed for metered flow to either work port providing proportional flow control based on lever movement. The small compact design ensures positive metering in either direction.

Featuring an adjustable relief set at 1500 PSI the valve ensures optimal performance under various conditions. The cast iron body Buna-N O-Rings and chrome-plated steel spool contribute to its durability offering a long service life. The maximum operating pressure is rated at 3000 PSI making it suitable for a range of industrial applications.

With 3/4NPT inlet and outlet ports and 1/2NPT work ports this valve provides flexibility in installation. The precision-ground chrome-plated spool coupled with a black nylon ball knob facilitates a seamless and efficient operation. Recommended filtration is at 30 microns ensuring smooth fluid passage.

This valve's tandem center circuit type and spring-centered spool action enhance its functionality making it a dependable choice for manual operations in hydraulic systems.

Supplier Part Number: AO755T4LRS

Specifications

Circuit Type Tandem Center	Brand Brand Hydraulics Inc.	Brand Brand Hydraulics	Pack Size 1.00	UOM EA	Features Adjustable Relief (Set @ 1500 PSI)	Key G	Ports 3/4NPT Inlet & Outlet 1/2NPT Work Ports	Ports 3/4NPT Inlet & Outlet 1/2NPT Work Ports	Spool Action Spring Centered	Supplier Part Number AO755T4LRS	Type 4-way 3-position	Product Weight 5.92 lbs	Alternate Part Numbers Alternate Part Number AO755T4LRS, Alternate Part Number C1HE39, Alternate Part Number MI-00954392, Alternate Part Number MINO-00127X17017

Similar Products

Model Number	Key	Type	Spool Action	Circuit Type	Ports	Features
AO755-T4-LS AO755 Series Monoblock Valve	D	4-way 3-position	Spring Centered	Tandem Center	3/4NPT Inlet & Outlet 1/2NPT Work Ports	No Relief
AO755-04LF1 AO755 Series Monoblock Valve	A	4-way	Friction Detent	Open Center	3/4NPT Inlet & Outlet 1/2NPT Work Ports	No Relief
AO755-T4-LD AO755 Series Monoblock Valve	F	4-way 3-position	Detented	Tandem Center	3/4NPT Inlet & Outlet 1/2NPT Work Ports	No Relief
AO755C4LD AO755 Series Monoblock Valve	C	4-way 3-position	Detented	Closed Center	3/4NPT Inlet & Outlet 1/2NPT Work Ports	No Relief

Product Questions & Answers (1)

Question by: Hubert Y on Jan 27, 2026, 9:10 PM

Will this valve work alright on my log splitter?

Answer by: Customer Support on Jan 29, 2026, 12:02 PM

This valve is designed for metered flow, meaning the flow is directly proportional to the movement of the lever, which should work well for a log splitter application.