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Parker Manual Air Control Valve: DirectAir 4, Four-Way / Three-Position, Lever - Parker Directair 4 Series Manual Air Control Valves
ParkerParker Directair 4 Series Manual Air Control Valves

Parker Manual Air Control Valve: DirectAir 4, Four-Way / Three-Position, Lever

The Parker DirectAir 4 Series Manual Air Control Valve (MPN 521811000) is a four-way, three-position, spring-return spool valve with a lever actuator. Constructed with an aluminum body, this manual air control valve…

SKU 3G-OTH-156705

Brand
Parker
Item
Manual Air Control Valve: DirectAir 4, Four-Way / Three-Position, Lever
Category
Parker Directair 4 Series Manual Air Control Valves
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Technical Specifications

Parker
Manufacturer Part Number
521811000
Type
Four-Way / Three-Position, Lever
Female NPT
1/4 in
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Parker Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Parker DirectAir 4 Series Manual Air Control Valve (MPN 521811000) is a four-way, three-position, spring-return spool valve with a lever actuator. Constructed with an aluminum body, this manual air control valve features 1/4 in Female NPT ports and is designed for closed-center operation.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Used in

Common applications for Parker
Injection molding machine proportional directional control — Parker solenoid coils and proportional valve cartridges for mold-closing and hydraulic actuation circuits
Construction equipment hydraulic steering and boom control — Parker directional control valves with solenoid actuation for excavator and loader hydraulic systems
Industrial press forming systems — Parker pressure-relief and proportional directional valves for tonnage control and cycle sequencing
Material-handling conveyor systems — Parker proportional control valves with solenoid pilot stages for smooth load acceleration and deceleration
Tire-building machinery — Parker solenoid-actuated directional cartridges for synchronized multi-axis hydraulic positioning
Forestry and mobile equipment — Parker valve spools and solenoid assemblies rated for harsh-environment hydraulic circuits and mobile-duty pressure cycling

Parker Products

3G Electric supplies Parker parker directair 4 series manual air control valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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PARKER Manual Air Control Valve: DirectAir 4, Four-Way / Three-Position, Lever, 1/4 in Female NPT (MPN 529811000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 529811000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.
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PARKER Manual Air Control Valve: DirectAir 4, Four-Way / Two-Position, Lever, 1/4 in Female NPT (MPN 520811000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 520811000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.
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PARKER Manual Air Control Valve: DirectAir 4, Four-Way / Two-Position, Foot Pedal, 1/4 in Female NPT (MPN 520711000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 520711000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.
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PARKER Manual Air Control Valve: DirectAir 4, Four-Way / Two-Position, Foot Pedal, 1/4 in Female NPT (MPN 520711000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 520711000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.
PARKER Manual Air Control Valve: DirectAir 4, Three-Way / Two-Position, Lever, 1/4 in Female NPT (MPN 524811000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 524811000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.
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PARKER Manual Air Control Valve: DirectAir 4, Three-Way / Two-Position, Lever, 1/4 in Female NPT (MPN 524811000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 524811000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.
PARKER Manual Air Control Valve: DirectAir 4, Three-Way / Two-Position, Roller, 1/4 in Female NPT (MPN 524A11000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 524A11000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.
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PARKER Manual Air Control Valve: DirectAir 4, Three-Way / Two-Position, Roller, 1/4 in Female NPT (MPN 524A11000). Key specifications — attr1084737: Aluminum; attr1084764: Manual Air Control Valve; attr1084778: Spool; attr1084767: DirectAir 4; attr1084731: 524A11000; attr1084739: PARKER; attr1084765: Spring Return; attr1084768: DirectAir 4.