Square Wave 745NC Non-Contact Dispense Valve
3
www.nordsonefd.com [email protected]
+1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Introduction
The Square Wave
™
745NC high speed non-contact valve applies low-viscosity water soluble and
solvent-based liquid fluxes in accurate, repeatable amounts on cell bus bars and solder-coated ribbon
used in cell string attachment.
Specifications
Dimensions: (24 W solenoid)
70.11 x 21.84 x 33.27 mm
(2.76 x 0.86 x 1.31")
(4 W solenoid)
80.48 x 21.84 x 33.27 mm
(3.17 x 0.86 x 1.31")
Minimum cycle time:
24 W solenoid — 2 ms (open and close once)
4 W solenoid — 6 ms (open and close once)
Maximum cycle time:
24 W solenoid — 15 ms (open and close once)
4 W solenoid — Continuous
Minimum dispensing frequency:
24 W solenoid — 50Hz
4 W solenoid — Continuous
Maximum dispensing frequency:
24 W solenoid — 500Hz
4 W solenoid — 150Hz
Maximum fluid pressure:
6.8 bar (100 psi)
Actuating operating pressure:
4.8–6.2 bar (70–90 psi)
Electrical inputs:
24 VDC — 24 W
24 VDC — 4 W
Volume output:
101.6 μm (0.004") nozzle — 0.030 μL — 0.30 μL @ 0.345 bar (5 psi)
127 μm (0.005") nozzle — 0.040 μL — 0.48 μL @ 0.345 bar (5 psi)
Material with fluid contact:
Fluid body: Type 303 stainless steel
Shaft: 17-4 PH stainless steel
Ball cage: 303 stainless steel
Fluid seal: PTFE carbon filled type with 304 SS spring energized seal
Valve ball: Tungsten carbide
Valve seat: Cobalt stainless steel
Nozzle: Type 303 stainless steel with ruby insert
Fluid inlet thread:
M5 x 0.8
Mounting:
M4 x 0.7
Weight:
114 grams (4.02 oz)
