We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
Parker Directair 4 Series Manual Air Control Valve, 521811000 - Parker Directair 4 Series Manual Air Control Valves
ParkerParker Directair 4 Series Manual Air Control Valves

Parker Directair 4 Series Manual Air Control Valve, 521811000

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
Directair 4 Series Manual Air Control Valve, 521811000
Part Number
521811000
Category
Parker Directair 4 Series Manual Air Control Valves
Available to Order
Also known as:521811000Parker
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Parker
Manufacturer Part Number
521811000
Type
Four-Way / Three-Position, Lever
Female NPT
1/4 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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.

Frequently Asked Questions

What is the Parker DirectAir 4 manual air control valve used for?

The Parker DirectAir 4 manual air control valve is used to direct compressed air in pneumatic systems, typically for actuating cylinders or tools. Its four-way, three-position, spring-return design with closed center suits applications requiring precise manual control in industrial automation, packaging, and material handling.

What are the specifications of the Parker DirectAir 4 valve MPN 521811000?

The Parker DirectAir 4 valve (MPN 521811000) is a four-way, three-position, lever-actuated spool valve with spring return. It has an aluminum body and 1/4 in Female NPT ports. The closed-center configuration blocks all flow in the center position, making it suitable for locking pneumatic circuits.

Where to buy the Parker DirectAir 4 valve in worldwide?

You can source the Parker DirectAir 4 valve (MPN 521811000) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Parker components for pneumatic systems.

How to install the Parker DirectAir 4 manual air control valve?

Install the Parker DirectAir 4 valve by connecting 1/4 in Female NPT ports to your pneumatic lines using appropriate fittings. Mount the aluminum body securely, ensure the lever moves freely, and verify the spring-return mechanism resets to the closed center. Follow standard pneumatic safety practices and consult the manufacturer's manual for torque specs.

Used in

Common applications for Parker
Industrial hydraulic presses — Parker D1VW directional control valves for precise flow direction
Injection molding machines — Parker solenoid coils and valves for cycle control
Material handling equipment — Parker hydraulic hose fittings and plugs for leak-free connections
High-pressure hydraulic systems — Parker extreme-pressure pipe fittings rated to 6,400 psi
Hydraulic filtration — Parker WPF Series filter elements for 5-micron contamination control
Pneumatic instrumentation — Parker A-Lok compression fittings for tubing connections
Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from Parker

View all Parker parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first