Item # SBVM-188, Furon® Suckback Valve - Pneumatically Actuated Molded Diaphragm Valve (¼ and ½ Inch Orifice) On Saint Gobain Performance Plastics

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Applications

Precise dispense of photoresist, adhesives, solvents and other media included in the molded version

Operations

Normally closed valve
Creates a vacuum when switching from open back to closed position to suck back a predetermined amount of liquid
Adjustment knob on top of valve gives excellent repeatability on the suckback volume

Features and Benefits

All virgin PTFE/high purity molded PFA wetted flow path
Eliminates dripping of media from nozzles after dispense cycle
Adjustable suckback capacity permits precise metering of media
Repeatability of suckback amount assures identical dispense volume for each cycle
Suitable for use with ultra high-purity or highly corrosive media
Innovative Furon SCR spring assures compatibility with HF and HC
Suitable for use in ozone applications (select models)

Unit of Measure

Specifications

End Connection Type	N/A FNPT
Orifice	N/A 1/2 in
End Connection Size	N/A 1/2 in
A - Length	N/A 3.6 in91.44 mm
C - Height	N/A 1.7 in43.18 mm
D - Diameter	N/A 2.90 in73.66 mm
E - Pitch Diameter	N/A 3.62 in91.95 mm
Maximum Operating Temperature	N/A 266 ºF130 ºC
Air Actuator Pressure	N/A 70 psig483 kPa
Maximum Operating Pressure (Suckback Capability)	N/A 60 psig413 kPa
Maximum Suckback Volume	N/A 100 µL
Non-Standard Options	N/A Other End Connections available. Non-Standard Options and custom configurations are welcome. Please consult factory for part number, price and delivery. Furon SCR spring for HCI applications
Features/Benefits	N/A All virgin PTFE/high purity molded PFA wetted flow path Eliminates dripping of dispense media from nozzles Adjustable suckback capacity permits precise metering of dispense media Repeatability of suckback amount allows identical dispense media over time
Notes	N/A When selecting either Flare Grip® or Grab Seal™ ends, we recommend end connections that are larger than the valve orifice size in order to achieve full flow. Adjusting to near zero suckback amount can cause the valve not to seal fully and leak across the valve seat. The valve works best if the nozzle is placed no more than four feet (1.2 m) from the valve. Leak detection port on side has standard port size of 1/4 - 28. For applications in concentrated Hydrochloric (HCI) applications, please consult the factory.
Spring	N/A Standard
Diaphragm Material	N/A PTFE
SIZE	N/A 1/2
SEL_SET	N/A 1/2