Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Parker Needle Valve: 5 gpm Max Flow Rate, 1/4 in NPT, 1/4 in NPT, 2,000 psi Max Pressure - Needle Flow Control Valves
ParkerNeedle Flow Control Valves

Parker Needle Valve: 5 gpm Max Flow Rate, 1/4 in NPT, 1/4 in NPT, 2,000 psi Max Pressure

The PARKER N400B is a manual needle flow control valve with a rotary knob, constructed from brass. It features 1/4 in NPT connections and is rated for a maximum flow rate of 5 gpm and a maximum pressure of 2,000 psi.

SKU 3G-OTH-161964

Brand
Parker
Item
Needle Valve: 5 gpm Max Flow Rate, 1/4 in NPT, 1/4 in NPT, 2,000 psi Max Pressure
Category
Needle Flow Control Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

Parker
Manufacturer Part Number
N400B
Type
Brass
NPT
1/4 in
Max Pressure
2,000 psi
View Full Spec Sheet

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 N400B is a manual needle flow control valve with a rotary knob, constructed from brass. It features 1/4 in NPT connections and is rated for a maximum flow rate of 5 gpm and a maximum pressure of 2,000 psi.

Frequently Asked Questions

What is the PARKER N400B needle valve used for?

The PARKER N400B is a manual needle flow control valve used to precisely regulate fluid flow in hydraulic and pneumatic systems. Its brass construction and 1/4 in NPT connections make it suitable for industrial applications requiring fine metering up to 5 gpm and 2,000 psi.

What are the specifications of the PARKER N400B needle valve?

The PARKER N400B is a manual needle valve with a rotary knob, made of brass. It has 1/4 in NPT inlet and outlet connections, a maximum flow rate of 5 gpm, and a maximum pressure rating of 2,000 psi. The manufacturer part number is N400B.

Where to buy the PARKER N400B needle valve worldwide?

3G Electric supplies the PARKER N400B needle valve worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this brass needle valve.

How to install the PARKER N400B needle valve?

Install the PARKER N400B by applying thread sealant to the 1/4 in NPT connections and tightening to the recommended torque. Ensure the rotary knob is accessible for manual adjustment. Always verify system pressure does not exceed 2,000 psi and flow stays within 5 gpm.

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 needle flow 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

Similar products

Matched by specification & description
PARKER Needle Valve: 15 gpm Max Flow Rate, 1/2 in NPT, 1/2 in NPT, 2,000 psi Max Pressure, Brass (MPN N800B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
Parker
PARKER Needle Valve: 15 gpm Max Flow Rate, 1/2 in NPT, 1/2 in NPT, 2,000 psi Max Pressure, Brass (MPN N800B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
PARKER Needle Valve: 8 gpm Max Flow Rate, 3/8 in NPT, 3/8 in NPT, 5,000 psi Max Pressure, Steel (MPN N600S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.
Parker
PARKER Needle Valve: 8 gpm Max Flow Rate, 3/8 in NPT, 3/8 in NPT, 5,000 psi Max Pressure, Steel (MPN N600S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.
PARKER Flow Control Valve: 25 gpm Max Flow Rate, #12 NPT, #12 NPT, 2,000 psi Max Pressure, Brass (MPN N1200B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER; attr1018137: Two-Way.
Parker
PARKER Flow Control Valve: 25 gpm Max Flow Rate, #12 NPT, #12 NPT, 2,000 psi Max Pressure, Brass (MPN N1200B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER; attr1018137: Two-Way.
PARKER Hydraulic Flow Control Valve: 5 gpm Max Flow Rate, 1/4 in NPT, 1/4 in NPT, Brass, Control (MPN F400B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
Parker
PARKER Hydraulic Flow Control Valve: 5 gpm Max Flow Rate, 1/4 in NPT, 1/4 in NPT, Brass, Control (MPN F400B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
PARKER Hydraulic Flow Control Valve: 15 gpm Max Flow Rate, 1/2 in NPT, 1/2 in NPT, Brass, Control (MPN F800B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
Parker
PARKER Hydraulic Flow Control Valve: 15 gpm Max Flow Rate, 1/2 in NPT, 1/2 in NPT, Brass, Control (MPN F800B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
PARKER Hydraulic Flow Control Valve: 8 gpm Max Flow Rate, 3/8 in NPT, 3/8 in NPT, Brass, Control (MPN F600B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
Parker
PARKER Hydraulic Flow Control Valve: 8 gpm Max Flow Rate, 3/8 in NPT, 3/8 in NPT, Brass, Control (MPN F600B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.

More from Parker

View all Parker parts
PARKER Needle Valve: 5 gpm Max Flow Rate, 1/4 in NPT, 1/4 in NPT, 5,000 psi Max Pressure, Steel (MPN N400S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.
Parker
PARKER Needle Valve: 5 gpm Max Flow Rate, 1/4 in NPT, 1/4 in NPT, 5,000 psi Max Pressure, Steel (MPN N400S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.
PARKER Needle Valve: 3 gpm Max Flow Rate, 1/8 in NPT, 1/8 in NPT, 2,000 psi Max Pressure, Brass (MPN N200B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
Parker
PARKER Needle Valve: 3 gpm Max Flow Rate, 1/8 in NPT, 1/8 in NPT, 2,000 psi Max Pressure, Brass (MPN N200B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
PARKER Flow Control Valve: 3 gpm Max Flow Rate, 1/8 in NPT, 1/8 in NPT, 5,000 psi Max Pressure (MPN N200S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER; attr1018137: Two-Way.
Parker
PARKER Flow Control Valve: 3 gpm Max Flow Rate, 1/8 in NPT, 1/8 in NPT, 5,000 psi Max Pressure (MPN N200S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER; attr1018137: Two-Way.
PARKER Flow Control Valve: 25 gpm Max Flow Rate, #12 SAE O-Ring Boss, #12 SAE O-Ring Boss, Steel (MPN N1220S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER; attr1018137: Two-Way.
Parker
PARKER Flow Control Valve: 25 gpm Max Flow Rate, #12 SAE O-Ring Boss, #12 SAE O-Ring Boss, Steel (MPN N1220S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER; attr1018137: Two-Way.
PARKER Needle Valve: 8 gpm Max Flow Rate, 3/8 in NPT, 3/8 in NPT, 2,000 psi Max Pressure, Brass (MPN N600B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
Parker
PARKER Needle Valve: 8 gpm Max Flow Rate, 3/8 in NPT, 3/8 in NPT, 2,000 psi Max Pressure, Brass (MPN N600B). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Brass; attr1018117: PARKER.
PARKER Flow Control Valve: 5 gpm Max Flow Rate, #6 SAE O-Ring Boss, #6 SAE O-Ring Boss, Steel (MPN N620S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER; attr1018137: Two-Way.
Parker
PARKER Flow Control Valve: 5 gpm Max Flow Rate, #6 SAE O-Ring Boss, #6 SAE O-Ring Boss, Steel (MPN N620S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER; attr1018137: Two-Way.
PARKER Needle Valve: 25 gpm Max Flow Rate, 3/4 in NPT, 3/4 in NPT, 5,000 psi Max Pressure, Steel (MPN N1200S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.
Parker
PARKER Needle Valve: 25 gpm Max Flow Rate, 3/4 in NPT, 3/4 in NPT, 5,000 psi Max Pressure, Steel (MPN N1200S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.
PARKER Needle Valve: 15 gpm Max Flow Rate, 1/2 in NPT, 1/2 in NPT, 5,000 psi Max Pressure, Steel (MPN N800S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.
Parker
PARKER Needle Valve: 15 gpm Max Flow Rate, 1/2 in NPT, 1/2 in NPT, 5,000 psi Max Pressure, Steel (MPN N800S). Key specifications — attr1018158: Manual; attr1018114: Rotary Knob; attr1018116: Steel; attr1018117: PARKER.