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AO755 Series 1-Spool Monoblock Valve, 4-way, Open Center Friction Detent Spool

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Description & Features

The AO755 Series 1-Spool Monoblock Valve 4-way Open Center Friction Detent Spool from Brand Hydraulics Inc. is designed to deliver precise metered flow to either work port. The small and compact construction increases efficiency while ensuring positive metering in both directions.

The monoblock valve features a cast iron body a chrome-plated steel spool and Buna-N O-rings providing durability and long life. Its 3/4NPT inlet & outlet and 1/2NPT work ports facilitate smooth flow management with a maximum operating pressure of 3000 PSI and a flow rating of 18 GPM.

Additionally the manually operated valve has a friction detent spool action with a precision ground chrome plated spool ensuring minimal wear over time. The tank port must be directed back to the tank for optimal performance and a 30-micron filtration is recommended.

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Specifications

Brand
Brand Hydraulics
Actuator Type
Lever
Body Material
Iron
Circuit Type
Open Center
Color
Black
Configuration
Open Center Spool
Connection Type
NPT
Dimensions
11 in L x 3.94 in W x 8.8 in H
grp Recommended Filtration
30 um
Handle Material
Nylon
Key
A
Number of Handles
1
Number of Ports/Ways
4
Number of Positions
3
Product Model
Mono-Block
Seal Material
Buna-N
Series
AO Series
Softgoods Material
Buna-N
Spool Action
Friction Detent

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Product Questions & Answers (1)

Question by: Dustin M on May 16, 2025, 9:38 PM
How does the open center friction detent spool work on this valve?
Answer by: Customer Support on May 17, 2025, 9:59 PM
The open center friction detent spool in the AO755 Series 1-Spool Monoblock Valve allows fluid to flow continuously when the spool is in the neutral position, making it suitable for applications requiring steady flow. The friction detent helps maintain the spool position, preventing accidental movement and ensuring reliable operation.

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