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Model 485

Model 485 Needle Valve Dispensing System, Normally Closed


The Dymax Model 485 pneumatic, normally closed needle valve is designed to deliver precise dots or very fine beads of low- to high-viscosity fluids. The valve’s stroke adjustment allows for fine-tuning of the dispense volume, ensuring precise and consistent deposits. Air pressure through the valve retracts the needle assembly from the seat allowing fluid to flow from the valve fluid inlet to the dispensing tip. When the air pressure is eliminated, the spring returns the needle back to its position, closing the fluid path and ending the dispense cycle. The Model 485 is ideally suited for a wide range of applications including glob-top dispensing and dispensing UV light-curable adhesives in medical-device manufacturing.

The Model 485 needle valve is available by itself for mounting into automated systems or is also available in a bench-top configuration, paired with the Dymax DVC-345 bench-top valve controller and a material reservoir (various styles and sizes available).

System Specifications

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Property Specifications
Valve type Pneumatic needle valve, normally closed
Construction materials SS, Anodized Aluminum (body); Acetal/SS (wetted path); silicone (wette valve seals)
Operating air pressure 60-80 psi (4.1 – 5.5 bar)
Activation DVC-345 valve controller or 3-way solenoid valve
Maximum air pressure 80 psi (5.5 bar)
Electrical supply (controller) 110/220 VAC
Valve air inlet thread 10-32
Valve fluid inlet tread 1/8 in (3.2 mm) NPT
Dimensions (W x H x D) 1.13 in x 5.14 in x 1.13 in (2.87 cm x 13.06 cm x 2.87 cm)
Weight 7.2 oz (0.2 kg)
Warranty 1 year from purchase

Looking for additional technical specifications? Check out our Resource Library or talk with our technical experts.

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Part Numbers

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T17731

Cartridge drop-in - 6 oz [160 mL]

Global (CE Marked)

T17732

Cartridge drop-in - 12 oz [300 mL]

Global (CE Marked)

T17733

Cartride drop-in - 20 oz [550 mL]

Global (CE Marked)

T17734

Large bottle drop-in - up to 1 Gallon

Global (CE Marked)

T17735

Pail drop-in  - up to 15 Liter (straight or tapered)

Global (CE Marked)

T17832

Complete system (without reservoir)

Global (CE Marked)

T17837

Mini 1 Gallon ram pump - up to 3.8 Liter pail

Global (CE Marked)

T11146

DVC-345 valve controller

Global (CE Marked)

T16787

6 FT of fluid line kit – black 3/8″ OD PE

Global (CE Marked)

T17004

Large bottle drop-in tank assembly with high-precision regulator

Global (CE Marked)

T17020

Model 300 diaphragm valve

Global (CE Marked)

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