DV-07 Adjustable Liquid Metering Valve
The DV-07 is a normally closed, air-actuated diaphragm valve
The DV-07 dispenses low to medium viscosity fluids for a variety of applications from microdots to volume fill. The DV-07 valve tolerates aggressive fluid formulations including acid-based fluids, reactive adhesives such as cyanoacrylates, solvents, and fluxes.
Adjustable precision piston stroke and suckback are two unique features offered on the DV-07. The adjustable precision piston stroke feature controls fluid flow, and suckback enables clean cuttoff of the dispensed fluid to prevent dripping.
Maximum dispensing precision is delivered through a design that achieves cycle rates in excess of 500 actuations per minute. Users can select the optimal fluid pressure, actuation time for dots or robotic velocity for lines, and the appropriate dispense tip to optimize their process.
A variety of needle tips can be used with the DV-07. It is compatible with standard Nordson luer needle tips and other brands that feature the same threads. Additionally, needle tip adaptors that use a 1/4-28 UNF thread can be installed in the fluid port.
The DV-07 is composed of materials that not only minimize preventative maintenance, but also make it durable and compatible with a variety of fluid types. The air cylinder body is precision machined from type 303 passivated stainless steel, and the fluid body and sealing diaphragm are made of ultra-high-molecular-weight polyethylene. To clean the fluid path, the lower section of the DV-07 is disassembled in a few simple steps providing full access to wetted parts.
Features
- Stroke adjustment for control of fluid flow rate
- Fail-safe positive shutoff prevents valve dripping
- Low maintenance
- Accurate, reliable dispensing of low-to-medium viscosity fluids
- May be used with all Nordson ASYMTEK dispensing systems
Compatible Fluids
- Fluxes
- Reagents
- Adhesives
- Paints
Size: 78.5 x 26.97mm (3.09 x 1.06 in.)
Weight: 122gm (4.3 oz.)
Fluid inlet thread: ⅛ NPT Female
Fluid outlet thread: ¼-28 UNF
Free-flow orifice: 2.54mm (0.10 in.)
Maximum fluid pressure: 483kPa (70 psi) [14.8 bar]
Air pressure required: 483-621kPa (70-90 psi) [4.8-6.2 bar]
Diaphragm stroke: 0.80mm (0.03 in.) nominal
Valve Construction
Piston and piston rod: Type 303 stainless steel
Cylinder body: Hard-coated aluminum
Diaphragm: UHMW polyethylene
DV-07 valve head: Acetal copolymer
DV-07 wetted parts: Acetal copolymer, UHMW polyethylene
DV-07CA valve head: UHMW polyethylene
DV-07CA wetted parts: UHMW polyethylene