781S Series Spray Valve
For Nordson EFD sales and service in over
40 countries, contact Nordson EFD or go to
www.nordsonefd.com.
Global
800-556-3484; +1-401-431-7000
[email protected]
Europe
00800 7001 7001
[email protected]
Asia
China: +86 (21) 3866 9006; [email protected]
India: +91 80 4021 3600; [email protected]
Japan: +81 03 5762 2760; [email protected]
Korea: +82-31-736-8321; [email protected]
SEAsia: +65 6796 9522; [email protected]
©2020 Nordson Corporation 7013051 v022920
For consistent dispense valve operation and easy adjustment
of valve output, Nordson EFD recommends using the
ValveMate 8040 controller on all automatic, semi-automatic
and benchtop applications.
Nordson EFD automated dispensing systems integrate with
ValveMate controllers for operating all pneumatic dispense
valves.
Contact Nordson EFD for details.
Spray Patterns
Round Pattern Spray Area Coverage
Nozzle
Nozzle Distance from Work Surface
25.4 mm
1.0"
50.8 mm
2.0"
76.2 mm
3.0"
152.4 mm
6.0"
#7007021
Standard
1.17 mm
(0.046")
6.35 mm
0.25"
12.70 mm
0.50"
19.05 mm
0.75"
38.10 mm
1.50"
#7021783
Wide-angle
1.17 mm
(0.046")
19.05 mm
0.75"
38.10 mm
1.50"
50.80mm
2.00"
Not
recommended
#7007022
0.71 mm
(0.028")
5.08 mm
0.20"
10.16 mm
0.40"
15.24 mm
0.60"
30.48 mm
1.20"
#7007023
0.36 mm
(0.014")
4.32 mm
0.17"
8.64 mm
0.34"
12.70 mm
0.50"
25.40 mm
1.00"
Fan Pattern Spray Area Coverage
Nozzle
Nozzle Distance from Work Surface
25.4 mm
1.0"
50.8 mm
2.0"
76.2 mm
3.0"
152.4 mm
6.0"
#7021787
Standard
1.17 mm
(0.046")
25.40 mm
1.00"
38.10 mm
1.50"
50.80 mm
2.00"
82.55 mm
3.25"
#7021784
Wide-angle
1.17 mm
(0.046")
38.1 mm
1.50"
63.5 mm
2.50"
82.55 mm
3.25"
165.1 mm
6.50"
#7021876
0.71 mm
(0.028")
10.16 mm
0.40"
20.32 mm
0.80"
30.48 mm
1.20"
60.96 mm
2.40"
#7021785
0.36 mm
(0.014")
8.63 mm
0.34"
17.27 mm
0.68"
25.4 mm
1.00"
50.8 mm
2.00"
Specifications
781S and MM781-SYS
Weight: 235.3 g (8.29 oz)
Fluid body: Hard-coated aluminum
Air cylinder body: Hard-coated aluminum
781S-SS / 781RC-SS*
Weight: 405.3 g (14.29 oz)
Fluid body: 303 stainless steel
Air cylinder body: 303 stainless steel
General
781S Size: 104.6
L
x 26.9
DIA
mm (4.12" x 1.06")
781RC Size: 114.91
L
x 26.92
DIA
mm (4.52" x 1.06")
Air cap: 303 stainless steel
Piston: 303 stainless steel
Needle and nozzle: 303 stainless steel
Free flow orifice: 1.17 mm (0.046"), 0.71 mm (0.028"), or
0.36 mm (0.014")
Needle packings: PTFE
*Fluid outlet thread: 1/8 NPT female (recirculation models
only)
Mounting: (1) 1/4-28 UNF tapped hole
Air pressure required: 4.8–6.2 bar (70–90 psi)
Maximum input fluid pressure: 20.7 bar (300 psi)
Maximum operating temperature: 102º C (215º F)
Operating frequency: Exceeds 400 cycles/min
*781RC-SS has an additional 1/8 NPT outlet port for fluids
requiring recirculation back to the primary reservoir. the
recirculation process keeps fluid moving so solids remain in
suspension.
All stainless steel valve parts are passivated.
