2023 Hydraulic Catalog

Single and Double Lock Valves

CYLINDERS

• Designed to lock a cylinder or part of a circuit while a directional control valve is in the neutral position • In neutral flow from both ends of cylinder is blocked • When valve is shifted to direct flow to one side of cylinder, pressure opens the check ball and simultaneously moves the piston to the opposite side of the valve • Opening this check valve allows free flow return to the directional control valve

CYLINDER COMPONENTS

PART NO.

PORT SIZE

GPM

PSI

CIRCUIT

SHIP WT.

JACKS

280365 280364 280360 280361 280362 280366 280363 280367 280369 280378 280368

3/8 NPT 1/2 NPT 1/4 NPT 3/8 NPT 1/2 NPT 3/4 NPT

20 20 20 20 20 20 20 20 20 20 20

3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000

Single Single Double Double Double Double Double Double

3 3 3 3 3 3 3 3 3 3 3

VALVES

SAE 6 SAE 8

MOTORS

3/8 NPT 1/2 NPT

Double with Flow Control Double with Flow Control Double with Flow Control

PUMPS

SAE 8

ENGINES

POWER UNITS

BAILEY™ - Double Pilot Operated Lock Valve

FILTRATION

Used to lock a cylinder in place when a directional control valve is in the neutral position. In operation, pressurized oil flow is directed through one of the cylinder ports. The pressure from the valve port will shift the pilot spool opening of the corresponding check valve, allowing oil to return through the opposite check valve. This valve uses a hardened steel seat and ball and therefore should not be used in applications requiring absolutely zero leakage.

GAUGES & METERS

CONTROLS

• Two valve ports and two cylinder ports • Double pilot operated check valve to prevent reverse flow • Max 30 GPM, 3,000 PSI • Steel body • SAE #8 ports

FLUID COOLERS

HOSES & FITTINGS

PILOT RATIO

PART NO.

MATERIAL

PORTS

GPM

PSI

TYPE

DESCRIPTION

Double pilot operated check valve

Two valve ports, two cylinder ports

220801

Steel

4:1

SAE 8

30

3,000

COMPONENTS

BEARINGS & BUSHINGS

MOBILE PRODUCTS

CUSTOM SOLUTIONS

For pricing, please refer to our website at Baileyhydraulics.com or call one of our Customer Experience Specialists at 1-800-800-1810.

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