Nordson_EFD_10th_Edition_Product_Catalog - 第67页
65 www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006 High Pressure Valves 736HPA-NV Series High Pressure Valve Features and Benets • Opening surge contro…
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www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006
Needle Valves
Piston and
Needle
Stroke Control
Stroke Reference
Piston Spring
Air Cylinder Body
Packing Spring
Needle Packings
Fluid Body
Fluid Inlet
1/8 NPT
Mounting Hole
1/4-28 UNF
Needle Seat and
Tip Adapter
Actuating
Air Input
10-32 UNF
741V Series
Needle Valve
Features and Benets
• Low-maintenance design
• Zero dead uid volume
• Positive shutoff
The 741V precision needle valve applies low viscosity uids in accurate, repeatable
amounts. Because the stainless steel needle seats in the tip adapter, there is virtually
no dead uid volume between shots.
7007029 741V-SS Valve
Air cylinder body and fluid body are passivated 303
stainless steel. Includes fluid inlet fittings #7021499
and #7007038.
7021235 741V-AL Valve
Air cylinder body and fluid body are hard-coated
anodized aluminum. Includes fluid inlet fittings
#7021499 and #7007038.
7015584 741V-SS-BP Valve
Air cylinder body and fluid body are passivated 303
stainless steel. Includes fluid inlet fittings #7021499
and #7007038 and BackPack valve actuator.
“After we installed your valve system on our
automatic assembly machines, the dripping
– and the complaints – ended.”
– A.T. Cross Company
www.nordsonefd.com/741VSeries
See Valve Controllers for system setup
Download CAD Models:
www.nordsonefd.com/CAD
For use with
• Accelerators
• Marking Inks
• Silicone Oils
• Solvents
• UV-cure Adhesives
Specications
Size: 114.6l x 26.9dia mm (4.51l x 1.06dia")
Weight: 317.5 g (11.2 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
Fluid outlet: Male luer lock
Mounting: 1/4-28 UNF tapped hole
Cycle rate: Exceeds 400 per minute
Air cylinder body: 741V-SS / 741V-SS-BP: 303 stainless steel
741V-AL: Hard-coated anodized aluminum
Fluid body: 741V-SS / 741V-SS-BP: 303 stainless steel
741V-AL: Hard-coated anodized aluminum
Piston: 303 stainless steel
Needle and nozzle: 303 stainless steel
Tip adapter: 303 stainless steel
SafetyLok collar: Nylon
Maximum operating 43° C (110° F)
temperature:
Warranty: 1 year, limited
All stainless steel parts are passivated.
65
www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006
High Pressure Valves
736HPA-NV Series
High Pressure Valve
Features and Benets
• Opening surge control
• Adjustable snuff-back cutoff
• Auxiliary air inlet air-assist closure
• Cycle rate exceeds 400/minute
7013449 736HPA-NV Valve
Chromium-plated spool
Fluid body and air cylinder body are passivated 303
stainless steel with a chromium-plated spool. The
fluid inlet and outlet threads are 1/4 NPT female.
7028951 736HPA-NV Valve
Titanium nitride-coated spool
Fluid body and air cylinder body are passivated
303 stainless steel with a titanium nitride-coated
spool. The fluid inlet and outlet threads are 1/4
NPT female.
High pressure fluid inlet fittings are not supplied by
EFD. They are available from the pump supplier.
Specify inlet size 1/4 NPT.
The 736HPA stainless steel balanced spool valve applies uniform amounts of thick
materials like greases and silicones at pressures up to 172 bar (2500 psi).
To keep dots and lines consistent and prevent drooling between shots, the
736HPA-NV valve uses an adjustable stroke control to regulate opening surge and
closing snuff-back.
Actuating Air Input
1/8 NPT
Air Cylinder Cap
Stroke Limit Stop
Piston
Piston Spring
Air Cylinder Body
Spool
Upper Seal
Fluid Body
Fluid Inlet 1/4 NPT
Lower Seal
Fluid Outlet 1/4 NPT
Body Cap
See Valve Controllers for system setup
Order Valve Replacement Parts:
www.nordsonefd.com/ValveKits
For use with
• Adhesives
• Greases
• Sealants
• Silicones
Specications
Size: 134.4l x 35.1dia mm (5.29l x 1.38dia")
Weight: 544.0 g (19.2 oz)
Actuating air pressure 4.8–6.2 bar (70–90 psi)
required:
Maximum uid pressure: 172 bar (2500 psi)
Fluid inlet: 1/4 NPT female
Fluid outlet: 1/4 NPT female
Mounting: (1) 5/16-24 UNF tapped hole or adjustable mounting block
Cycle rate: Exceeds 400 per minute
Air cylinder body: 303 stainless steel
Fluid body: 303 stainless steel
Piston: Hard-coated anodized aluminum
Spool: Hard-chrome coated stainless
Spool seals: Polyester elastomer
Warranty: 1 year, limited
All stainless steel parts are passivated.
www.nordsonefd.com/736Series
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www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006
Auger Valves
Features and Benets
• Adjustable auger speed
• Adjustable ow rate
• Fast, tool-free release of wetted parts
• Wear-resistant tungsten carbide
wetted parts for higher production
output (794-TC only)
Optimum
Syringe
Reservoir
3cc to 70cc
Syringe Adapter
Assembly
Motor Electrical
Cable to the 7194
Controller
Motor Chamber
Syringe
Clamp
Robot
Mount
Reduction
Gear Assembly
Adjustable Foot
Assembly
Fluid
Chamber
Auger
Supply
Hose
7029745 794-FR Valve
8 pitch, brush motor, fixed head.
7029746 794-FR-16 Valve
16 pitch, brush motor, fixed head.
7363512 794-TC Valve 0.10 mm
High flow (double pitch), brush motor, 0.10 mm
(0.004") gap, tungsten carbide – recommended for
fluids with large particles < 40 μm.
794 Series
Auger Valve
Auger valves use screw-feed technology with precision time and pressure controls to
dispense accurate, repeatable amounts of particle-lled materials, thermal interface
materials (TIM), or other highly abrasive pastes. The auger assembly can be easily
replaced to change the gap size as needed.
The robust tungsten carbide (TC) auger screw and uid body liner on the 794-TC
valve resists wear from highly abrasive pastes to ensure long valve life.
Learn more about EFD custom-made
solder pastes. See Solder Products for details.
Learn more about EFD thermal interface materials.
See Thermal Compound for details.
“We've gone from 30 minutes to 4 minutes
to solder an assembly. I look like a hero for
introducing this.”
– Automotive Assembly
For use with
• Thermal Interface Materials
• Particle-lled Materials
• Solder Pastes
• Thermal Greases
See 7194 Valve Controller for system setup
Specications
Size: 794: 237.5l x 31.8dia mm (9.35l x 1.25dia")
794-TC: 61.0l x 32.0dia mm (2.4l x 1.25 dia")
Weight: 794: 544.0 g (19.2 oz) / 794-TC: 470.0 g (16.6 oz)
Auger speed (dry): 794: 250–500 RPM based on voltage input
794-TC: 170–400 RPM based on voltage input
Auger pitch: 794: 8, 16 / 794-TC: High ow (double pitch)
Input voltage: 12–24 VDC (<10% ripple)
Maximum acceleration: 2.0 g (0.07 oz)
Maximum continuous 794: 240 mA / 794-TC: 240 mA
current: (time delay fuse recommended)
Maximum uid pressure: 2.0 bar (30 psi)
Fluid inlet: 794: 304 stainless steel, 10-32 UNF x 5/32"
794-TC: 1/8" ID tubing supplied for connection
Optional push-in tting: Polypropylene
Mounting: 10-32, low prole
Luer lock tip adapter 303 stainless steel
assembly (794-TC only):
Fluid body (794 only): 440C hardened stainless steel
Fluid inlet tube 303 stainless steel
(794-TC only):
Fluid cartridge liner Tungsten carbide
(794-TC only):
Auger: 794: 440C hardened stainless steel
794-TC: Tungsten carbide
Approvals: China RoHS
Warranty: 1 year, limited
All stainless steel parts are passivated.
794-FR
www.nordsonefd.com/794Series
www.nordsonefd.com/794-TCSeries