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The 775 valve is operated by a 50-150 PSI air signal from a user supplied 3-way normally closed air valve. The signal causes the internal spool to shift to its open (flowing) position, a precise amount determined by the adjustable flow control setting. When the operation air signal is removed, the material flow is instantly shutoff, then the end of the spool continues to travel for an adjustable distance. This adjustable travel creates a precisely controlled suck-back action.  This suck-back can be set in a manner that breaks the tail from stringy materials or remove a tiny droplet that would normally remain at the tip of the nozzle with thin materials.
The System Includes:
4" Polyethylene Nozzles with 1/32, 1/16, 3/32, and 1/8 Orifice
1/4 NPT to Luer Lock Adaptor
Assorted Nylon Hubs with 1/2" Stainless Tips in 15, 18, 20, 22, 23 & 25 Gauge
User Manual
Specifications:
Valve Type: Modified spool with adjustable suck-back controls
Materials of Construction: Stainless Steel, Aluminum or Teflon®
Weight: 14oz (397g)
Seals: Viton® or Teflon®
Wetted Internal Components: 303 and 304 Stainless Steel, AluminumMax
Operating Temperature: 400 degrees Fahrenheit
Operating Pressure: (air pilot) 50-150 PSI
Dispensing Liquid Pressure: 800 PSI with Teflon® seals, 300 PSI w/ Viton® seals
 Ordering Information:
775V=Seals made of Viton®
775T=Seals made of Teflon®
Seal Replacement Kits: Viton®-R775V or Teflon®-R775T
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