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139 www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006 400 / 450 Autovalves Accessories V AL VE SEALS Part Part # Material Color Description O-rings 770227…
138
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Meter Mix Valves
7702217 450RC Autovalve
Aluminum Valve, Single Air Cylinder w/ Snuff Back,
GT Seals
Order handle separately; see Autovalve Accessories
for details.
7702216 450XT Autovalve
Aluminum Valve, Extended Air Cylinder with Snuff
Back and GT Seals
Order handle separately; see Autovalve Accessories
for details.
Series 450RC
Recirculating Autovalve
Series 450XT Snuff Back
Valve
Manifold
Seat Plate
Valve Body
Tie Plate
Lip Seal
O-ring
Air Cylinder Body
Recommended Mixer:
Series 160 Mixer
Recommended Mixer:
Series 160 Mixer
The 450RC Autovalve allows continuous ow of material while still being able to
control shut-off at the mixer. Typical uses are for heated materials or materials with
llers that need to remain suspended. Recirculation occurring at the valve instead of
the pump eliminates pressure buildup in the lines, preventing off-ratio dispensing.
This innovative dispense valve is designed
specically for two-component urethanes
and eliminates exposure of wetted shafts
to air. Since 2K urethanes are moisture
sensitive, any contact with air can cure the
material, locking up the dispense valve.
Manifolds: See Series 450 Manifold Table,
previous page
Manifolds: See Series 450 Manifold Table, previous page
Specications
Weight: Aluminum valve and manifold: 1.6 lb (0.7 kg)
Stainless steel valve and manifold: 2.5 lb (1.1 kg)
Pressure Rating: 240 bar (3500 psi)
Options:
O-ring options: Viton, PTFE, Ethylene-Propylene
(E-P)
Lip seal options: Viton, Polyurethane (PU), PTFE,
Polytuff, Ethylene-Propylene (E-P)
Repair kits containing a complete set of lip seals
and O-rings are available.
Specications
Valve
Size: 132l x 63.5w x 58.4h mm (3.3l x 2.5w x 2.3h")
Body: 6061-T6 aluminum or 303 stainless steel
Manifold
Size: 48.3l x 63.5w x 38.1h mm (1.9l x 2.5w x 1.5h")
Material: 6061-T6 aluminum or 303 stainless steel
Outlet thread 7/8”-14 (for standard bell mixers)
Valve System
Weight: Aluminum valve and manifold: 2.0 lb (0.9 kg)
Stainless steel valve and manifold: 3.4 lb (1.5 kg)
Operating parameters: Min. operating pressure: 5.5 bar (80 psi)
Max. uid pressure: 240 bar (3500 psi)
Electric handle 24V
mount switch:
139
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400 / 450 Autovalves Accessories
VALVE SEALS
Part Part # Material Color Description
O-rings
7702275 PTFE Orange Recommended with all chemicals
7702810 EP Black MEK, ketones, and acetones
U-cups
7702280 PTFE Aqua
With PTFE O-ring / Recommended
with all chemicals
7702277 UHPME Clear
With SS spring / Epoxies
(amine catalyst), polyesters,
and acrylics
7702281 PU Orange
With Viton O-ring / Epoxies
(general), polyurethanes, and
polysuldes
CARBON STEEL PIPE ADAPTERS
Part Part # Description
7702420 90° Elbow w/3/8" FNPS
7702425 Straight Adapter w/3/8" FNPS
7702429 2K V-Parts CS H-Adpt Elbow 1/2" FNPT
SWIVEL CHECK VALVE ADAPTERS
Part Part # Description
7702408 SS w/Alum. Collar, 1/4" FNPT
7702409 All SS, 1/4" FNPT
TRIGGER HANDLES
Part Part # Description
7701971 Pistol Grip Handle w/Electric Momentary Switch (24V)
7701977 Pistol Grip Handle w/Pneumatic Switch
If using an electric handle, a solenoid from an outside vendor is required.
Elbow adapters are available to connect material lines to the valve.
RATIO CHECK CAP AND NIGHT CAP
Part Part #
Description
7701181 PTFE Night Cap & Nut
7701184 PTFE Ratio Check Cap & Nut
REPAIR KITS
Part Part # Description
7704093 2K Kit 4X0 Repair TGT
7704095 2K Kit 4X0 Repair TPV
7704096 2K Kit 4X0 Repair TTT
EFD offers a wide variety of seal congurations for Series 400/450 autovalves. Select
both the O-ring and U-cup seals based on chemical compatibility.
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2K Accessories
BLOCK MANIFOLDS FOR MIXERS
Part Part # Material Inlet Outlet Solvent Ports Mixer
7701323
Aluminum (2) 1/8" FNPT 7/8 - 14 1/4" FNPT Series 160
7701325
Aluminum (2) 1/4" FNPT 7/8 - 14 1/4" FNPT Series 160
7701329
Aluminum (2) 1/2" FNPT 1-5/16 - 12 UN 1/4" FNPT Series 162A
ADAPTERS FOR MIXERS
Part Part # Material Inlet
7701252 Carbon Steel 11/16" Female NPT (for Venus Gun)
7701315
Carbon Steel 1" Male NPT
DISPENSING TIPS FOR MIXERS
Nordson EFD’s two-component manifolds separately port the resin and hardener into the mixing nozzle. Cleanup simply involves wiping the
manifold face after the nozzle has been removed. To prevent back ow or cross contamination of reactive material, inline check valves are
available. Designed for when you’re dispensing without a meter mix valve, but directly through the mixer. For use with Series 160 and 162A.
Mixers can be connected to some pre-existing manifolds or valves using adapters. Contact Nordson EFD for details. For use with Series 85,
100, 160, and 162A.
Luer Lok adapters (locking hubs) are used for attaching Optimum dispensing tips to Series 190 and 160 mixers. If you
want to use a metal jacket with the 3.16” ID or 1/4” ID bell mixers, order the mixer and the Luer Lok tting as two
separate items unassembled: square hub outlet and #7700943 Luer Lok tting (bag of 50). See Optimum Dispensing
Tips for details.
Insert restrictor
Flow restrictor
Remove plug
Attach mixer
FLOW RESTRICTORS
Part # Type Orifice Size (in/mm) Material Color u-TAH
7660764 Flat 1.6 x 1.6 mm (0.063 x 0.063") LDPE Black —
7660766 Flat Dual Slit LDPE Black —
7661231 Tabbed 2.4 x 2.4 mm (0.094 x 0.094") LDPE White —
7702861 Conical 1.6 x 1.6 mm (0.063 x 0.063") PP Transluscent
3
Nordson EFD recommends the use of our Flow Restrictor when dispensing cartridges lled with low viscosity uids. Thin adhesives are often
too free owing and can cause cross-contamination, lead/lag problems, and plugging. Our low-cost, plastic Flow Restrictor eliminates these
issues by slowing the thinner component’s ow. Use the smallest orice possible, based on material viscosity.