Nordson-EFD-MeterMix-Guide.pdf - 第4页
4 Step 4: Select Your Valve Seal ( for pneumatic valves only) RECOMMENDED VALVE SEAL BY MATERIAL TYPE O-Rings Model/Color Recommended for Contact With Viton (Brown) Methylene Chloride, Alcohol, Carbon Tetrachloride EP (B…
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RECOMMENDED VALVES BY MATERIAL OR VISCOSITY
Meter Mix Valves Fluid Material
Pneumatic Adhesives & Sealants Abrasive Urethanes
High Viscosity
(162A Series Mixers)
Series 400
✓
– –
Series 400HF – –
✓
Series 450
✓
– –
Series 450RC
✓
– –
Series 450XT –
✓
–
If you’re using a meter mix valve, your system may include a valve, mixer,
and accessories. Here are steps to help you select the best possible 2K
meter mix system.
Step 1: Select the Best Spiral Mixer for Your Material
See 2K Selection Guide,
Best Mixer for Your Material.
Keep in mind, when using a meter mix system,
you must use spiral mixers.
www.nordsonefd.com/2KSelectionGuide
Step 2: Select the Best Spiral Mixer for Your Material Viscosity
See 2K Selection Guide,
Best Mixer for Your Material Viscosity.
Material viscosity will help determine
the type of spiral mixer you need.
Step 3: Select Your Meter Mix Valve
Nordson EFD’s meter mix valves are designed to bring the reactive adhesives and sealants into
the static mixer and are engineered for easy disassembly and cleaning. Our pneumatic valves help
increase productivity and eliminate the need for solvent ushing.
Series 450XT Snuff Back Valve
Series 450RC Recirculating Valve
Series 450 Autovalve
Series 400 and 400HF Autovalve
Pneumatic Meter Mix Valve Series
Pneumatic meter mix valves provide ON-OFF functions, and metering in the proper ratio of
A and B components is controlled by the metering pumps. Different manifolds are offered
to assist this metering process. The selection of the manifold for each application depends
on the ow rate, viscosity, and volume ratio.
Using a Meter Mix Valve
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Step 4: Select Your Valve Seal
(
for pneumatic valves only)
RECOMMENDED VALVE SEAL BY MATERIAL TYPE
O-Rings Model/Color Recommended for Contact With
Viton (Brown) Methylene Chloride, Alcohol, Carbon Tetrachloride
EP (Black) MEK, Ketones, Acetone
PTFE (Orange) All Adhesives and Sealants
U-Cups Model/Color Recommended for Contact With
UHPME-Cup (Clear) & SS Spring Epoxies Amine Catalyst, Polyesters, Acrylics
PU-Cup (Orange) & Viton O-Ring (Brown) Epoxies General, Polyurethane, Polysulfides
PTFE Cup (Aqua) & PTFE O-Ring (Orange) All Adhesives and Sealants
Step 5: Select Your Manifold
(for pneumatic valves only)
MANIFOLD RECOMMENDATIONS
Standard Flow 1:1 Standard Flow Wide Ratio High Flow 1:1 High Flow Wide Ratio
Mixer Diameter
< 1/4" 400 / 450 400 / 450 – –
≥ 3/8" 450 450 400 400
Effective Ratio* of the Mixer
< 7:1 400 / 450 – 400 –
≥ 7:1 – 400 / 450 – 400
Mixer Diameter = Standard vs. High Flow
Effective Ratio = 1:1 or Wide Ratio
*Effective Ratio is determined by multiplying the mix ratio with the component viscosity.
Using a Meter Mix Valve
Step 7: Select a Metal Jacket for High Pressure Applications
Step 6: Select Your Handle
(for pneumatic valves only)
If you’re dispensing with a Series 400 or Series 450 pneumatic meter mix valve, you’ll need to select
the correct seal based on the type of material being dispensed.
EFD offers a wide variety of seal congurations. Select both the O-ring and U-cup seals based on
chemical compatibility.
Nordson EFD offers electric or pneumatic handles for actuating the air cylinder of the valve. These handles
feature an ergonomic design, which make handheld applications easier to execute.
Choose from three types of electric handles:
1. Pistol grip handle with pneumatic switch
2. Pistol grip handle with electric momentary switch (24 V)
3. Pistol grip handle with electric push on/off switch (24 V)
Keep in mind if you’re using an electric handle, a solenoid from an outside vendor is required.
Nordson EFD recommends the One Piece Metal Jacket attachment
when pressure inside the mixer is greater than 150 psi (10 bar). We offer
a wide variety of one-piece, affordable jackets that can be used over the
mixing nozzle.
Additionally, we offer precision machined jackets for automated dispens-
ing applications.
Nordson EFD’s two-component manifolds connect your meter mix valve to provide a simple method of
bringing the resin and hardener into the mixing nozzle.
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Series 400HF Autovalve
Series 400 Autovalve
Recommended Mixer:
Series 160 Mixer
Manifold
Seat Plate
Valve Body
Tie Plate
Lip Seal
O-ring
Front Seal
Air Cylinder Body
With meter mix and dispense systems, the pneumatic Series 400 Autovalve is a
durable and reliable valve. The A and B shut off pistons have PTFE seals allowing high
ow with minimal maintenance as these seals can be adjusted without disassembly of
the valve body. The 9/16-18 uid inlet ports of the Series 400 Autovalve allows ow
rates of 3-4 gallons per minute, depending on pump capability and material viscosity.
7701895 400 Autovalve
Aluminum Valve, Single Air Cylinder, TPV Seals
Order handle separately; see Autovalve Accessories
for details.
MANIFOLDS FOR SERIES 400 AUTOVALVES
Ratio Part # (Manifold) Part # (Manifold with solvent port) Material Flow
1:1 7701933 7701935 Aluminum Low Flow
1:1 7701942 - Aluminum High Flow
Wide 7701946 - Aluminum High Flow
The 400HF Valve provides ow rates that are 15-30% greater than the standard 400
Valve conguration, without compromising accuracy or consistency. The large 3/4"
material inlet ports permit ow rates of 4-5 gallons per minute, depending on pump
capability and material viscosity.
ORDERING GUIDE
• Valve, manifold, and handle are ordered
individually
• For high back pressure conditions (i.e. over
1000 psi/69 bar) order a double air cylinder
• Seal Designations: T=PTFE, P=Polyurethane,
V=Viton, G=Polytuff
Specications 400/400HF/450
Valve
Size: 83.8l x 63.5w x 58.4h mm (3.3 x 2.5 x 2.3")
Body: 6061-T6 aluminum or 303 stainless steel
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.
Manifold
Size: 48.3l x 63.5w x 38.1h mm (1.9 x 2.5 x 1.5")
Material: 6061-T6 aluminum or 303 stainless steel
Outlet thread size options: 7/8"-14 (for standard bell mixers);
1 5/16"-12 (for oversized bell mixers)
Valve System
Weight: Aluminum valve and manifold: 1.6 lb (0.7 kg)
Stainless steel valve and manifold: 2.5 lb (1.1 kg)
Operating Parameters: Min. operating pressure: 5.5 bar (80 psi)
Max. fluid pressure: 240 bar (3500 psi)
Electric handle mount switch: 24V
Recommended Mixer:
Series 162A Mixer
Specications
See Series 400, above
7704105 400HF Autovalve
Aluminum Valve, Single Air Cylinder, TGT Seals
7701924 400HF Autovalve
Aluminum Valve, Single Air Cylinder, TPV Seals
Order handle separately; see Autovalve Accessories
for details.