Nordson_EFD_10th_Edition_Product_Catalog - 第77页
75 www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006 Spray Valves Piston and Needle Stroke Control Stroke Reference Piston Spring Air Cylinder Body Packin…
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Precision Spray Valve Systems
Spray Valves / Controllers
Engineered for the most demanding mechanical and
environmental applications, EFD spray valve systems
provide reliable dispensing solutions for benchtop
applications, machine builders, and cost-effective drop-in
retrot alternatives for automatic production lines.
EFD offers a wide range of valves for spraying almost any
uid, from activators, coatings, inks, oils, and solvents
—in accurate, repeatable amounts.
Our unique spray valve designs are exceptionally reliable
and will provide tens of millions of trouble-free dispensing
cycles before maintenance is required.
Features and Benets
• Reliable, low maintenance
• Fast cycle rates allow production lines to run at
optimal speed
• Engineered for the most demanding production
environments
• Clean, drip-free cutoffs reduce waste, mess,
and cleanup
• Interactive microprocessor-based controllers simplify
PLC settings and provide consistent operation
• Cost-effective replacement for older technology valves
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www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006
Spray Valves
Piston and Needle
Stroke Control
Stroke Reference
Piston Spring
Air Cylinder Body
Packing Spring
Needle Packings
Fluid Body
Air Cap
Fluid Inlet
1/8 NPT
Mounting Hole
1/4-28 UNF
Nozzle
Air Cap Retainer
Actuating
Air Input
10-32 UNF
Nozzle Air
Input
10-32 UNF
781S Series
General Purpose
Spray Valve
Features and Benets
• Consistent area of coverage
• No clogging, dripping, or drying out
• No overspray, no mist, no bounce
• Adjustable nozzle air
7007031 781S-SS Spray Valve
Nozzle size is 1.17 mm (0.046") diameter. Round
pattern, narrow angle. All metal parts are passivated
303 stainless steel.
7021600 781S-AL Spray Valve
Nozzle size is 1.17 mm (0.046") diameter. Round
pattern, narrow angle. Fluid body and air cylinder body
are aluminum.
7021615 781S-SS-46F
Nozzle size is 1.17 mm (0.046") diameter, fan
shape. All metal parts are passivated 303 stainless
steel.
7021611 781S-SS-14
Nozzle size is 0.36 mm (0.014") diameter. Round
pattern, narrow angle. All metal parts are passivated
303 stainless steel.
7021613 781S-SS-28
Nozzle size is 0.71 mm (0.028") diameter. Round
pattern, narrow angle. All metal parts are passivated
303 stainless steel.
7021618 781S-SS-WF
Same as 781S-SS-46F except wide fan pattern
is 2x the width.
The 781S Series Low Volume Low Pressure (LVLP) spray systems apply consistent
coatings of low- to medium-viscosity uids exactly where needed.
Microliter to milliliter amounts can be reliably dispensed in round patterns with
diameters ranging from 4.3 to 50.8 mm (0.17 to 2.0") and in fan patterns with
widths up to 165.1 mm (6.5").
See Spray Valve Controllers for system setup
For use with
• Activators
• Coatings
• Greases
• Inks
• Liquid Fluxes
• Oils
• Silicones
• Solvents
Specications
Size: 104.6l x 26.9dia mm (4.12l x 1.06dia")
Weight: 781S-SS: 405.3 g (14.2 oz)
781S: 235.3 g (8.2 oz)
Actuating air pressure 4.8–6.2 bar (70–90 psi)
required:
Maximum uid pressure: 20.7 bar (300 psi)
Fluid inlet: 1/8 NPT female
Mounting: (1) 1/4-28 UNF tapped hole
Cycle rate: Exceeds 400 per minute
Air cylinder body / 781S-SS: 303 stainless steel
Fluid body: 781S-AL: Aluminum
Air cap: 303 stainless steel
Piston: 303 stainless steel
Needle and nozzle: 303 stainless steel
Maximum operating 102º C (215º F)
temperature:
Warranty: 1 year, limited
All stainless steel parts are passivated.
Download CAD Models:
www.nordsonefd.com/CAD
SPRAY PATTERNS
76
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Spray Valves
781Mini Series
Spray Valve
Features and Benets
• Improved uniformity for better
accuracy and ner edge denition
• Narrower spray patterns as small as
1 mm (0.04") wide
• QR (Quick Release) clasp for tool-free
serviceability in seconds
• High transfer efciency with no
overspray
7364002 781Mini-0.01" Valve
Features a 0.254 mm (0.01") nozzle orifice.
Round pattern, narrow angle.
7362301 781Mini-0.03" Valve
Features a 0.76 mm (0.03") nozzle orifice.
Round pattern.
The 781Mini
™
precision Low Volume Low Pressure (LVLP) spray valve’s innovative
design produces an exceptionally more uniform, narrower spray pattern than
previously possible.
Its 60% smaller form factor allows it to dispense in tighter, more complex spaces,
and to mount more valves per xture plate for increased throughput.
Narrow spray patterns
as small as 1 mm wide
www.nordsonefd.com/781MiniSpray
See Spray Valve Controllers for system setup
For use with
• Activators
• Coatings
• Inks
• Light Greases & Oils
• Liquid Fluxes
• Silicone Oils
• Solvents
Specications
Size: 71.4l x 22.4dia mm (2.88l x 0.88dia")
Weight: 141.0 g (5.0 oz)
Actuating air pressure 4.8–6.2 bar (70–90 psi)
required:
Maximum uid pressure: 7.0 bar (100 psi)
Fluid inlet: M5
Mounting: M4
Cycle rate: Exceeds 400 per minute
Air cylinder body: 303 stainless steel
Fluid body: 303 stainless steel
Air cap: 303 stainless steel
Piston: 303 stainless steel
Needle and nozzle: 303 stainless steel
Maximum operating 102º C (215º F)
temperature:
Warranty: 1 year, limited
All stainless steel parts are passivated.
Order Valve Replacement Parts:
www.nordsonefd.com/ValveKits