Snuff Back Valve

SBV100 & SBV200

Features

  • Compact size and weight
  • Easy to maintain and operate
  • Adjustable snuff-back cutoff
  • Suitable for wide range of material
  • Stainless Steel wetted body

The Snuff Back valve is a single acting pneumatic valve designed to dispense medium to high viscosity material. The working principal of this valve is that the retraction of the piston generates "Negative Pressure" that allows the “Pull Back” of material to achieve a quick cut off and or prevent dripping of material. A snuff-back effect is created as the piston rod retract, this effect causing the material in the dispensing needle to be sucked back into the valve body. The snuff-back effect helps to prevent material from dripping when the valve is not dispensing.

The Snuff Back Valve is suitable for dispensing applications such as gasketing that need to have a clean cut-offs and faster shut-off control. This valve is also suitable for large volume dispensing for high viscous material in dispensing applications such as potting, filling or encapsulation. The unique balance spool design allows the valve to operate with very high material pressure conditions without any problem.

Model No. SBV100 SBV200
Valve Type Snuff Back Snuff Back
Operating Air Pressure 5 bar 5 bar
Fluid Delivery Pressure Max 7.0 bar 1 bar to 150 bar (Max)
Minimum Shot Size Ø 0.5 mm Ø 1.0 mm

 

Driving Part Materials
Cylinder Body Aluminium 316 Stainless Steel
Cap Aluminium 316 Stainless Steel
Piston SUS304 Stainless Steel Hard Coated Aluminium
Check Body Stainless Steel 316 Stainless Steel

 

Wetted Part Materials
Chamber Stainless Steel Stainless Steel
CAP, CV Body Stainless Steel 316 Stainless Steel
Seals Teflon Viton / FKM / Fluorocarbon

 

Connecting Ports
Operating Air Inputs M5 thread w/ push-in fitting for 6mm OD tube 1 / 8 PT Female & M5
Material Inlet 1 / 8 NPT 1 / 4 NPT Female
Material Outlet White Nylon Luer Lock Adaptor 1 / 4 – 28 UNF 1 / 4 NPT Female
Weight 308g 720g