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Model 775

Model 775 Dispensing Valve with Suck-Back and Flow Controls


The Model 775 is a pneumatically operated spool valve that is designed to accurately dispense a variety of low, medium and high viscosity fluids. This products superior accuracy comes from two main features, its suck-back control, and adjustable flow control. The suck-back feature greatly increases accuracy and repeatability when dispensing materials. Having control over the amount of suck-back assures consistent, stringless dispensing of tackier materials, and prevents droplets from remaining on the dispense nozzle when using lower viscosity materials. The valves other key feature, adjustable flow control, gives users the ability to have complete control over the amount of material dispensed. This product can dispense volumes as little as 0.01 mL and as large as 50 mL.

The Model 775 dispensing valve is ideally suited to automated applications, but can also be paired with the Dymax DVC-345 Digital Valve Controller and a material reservoir to create a bench-top dispensing system.

Features

Features

  • Adjustable suck-back provides a crisp, clean shut-off of materials eliminating droplets and skinning-over at the end of the dispense tip
  • Available with Teflon or Viton seals for compatibility with a larger variety of fluids
  • Adjustable flow control with lock provides accurate dispensing in shots from 0.01 mL to 50 mL
  • Adjustable flow control lock prevents drifting or tampering
  • Dispenses from pressurized cartridges, bottles, and pails (requires appropriate reservoir hardware) for compatibility with most standard fluid packages and delivery systems
  • Lightweight so it’s easy to handle and mount in automated or bench-top systems

System Specifications

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Property Specifications
Valve type Modified spool valve with suck-back controls
Construction materials Stainless steel, hard-coated and anodized aluminum, Teflon, Viton
Operating air pressure 60-80 psi [4.14 – 5.51 bar]
Activation Valve controller or 3-way solenoid valve
Maximum fluid pressure 700 psi (48 bar) with Teflon seals | 300 psi (21 bar) with Viton seals
Maximum operating temperature 400°F (204°C)
Free flow orifice 0.22 in diameter
Dimensions (W x H x D) 1.25 in x 5.42 in x 1.25 in [3.18 cm x 13.77 cm x 3.18 cm]
Weight 14 oz [397 g]
Warranty 1 year from purchase date

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

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Model 775 Spool Valve for Medium to High Viscosity Fluids

The Model 775 is a pneumatically operated spool valve that is designed to accurately dispense a variety of medium- to high-viscosity fluids. The valve's accuracy comes from two main features, its suck-back control and adjustable flow control. The suck-back feature greatly increases accuracy and repeatability when dispensing materials. Having control over the amount of suck-back assures consistent, stringless dispensing of tackier materials, and prevents droplets from remaining on the dispense nozzle when using lower viscosity materials. The valve's other key feature, adjustable flow control, gives users the ability to have complete control over the amount of material dispensed. The 775 valve can dispense volumes as little as 0.01 mL and as large as 50 mL.

Part Numbers

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T15853

Model 775 with Teflon seals, 1/4″ NPT

Global (CE Marked)

T15855

Model 775 with Teflon seals, 1/4 – 28 NPT

Global (CE Marked)

T15859

Model 775 with Viton seals, 1/4″ NPT

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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