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Series 450RC

Series 450RC
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The 450RC valve allows continuous flow of material while still being able to control shut-off at the mixer. Typical uses are for heated materials or materials with fillers that need to remain suspended. Gear pump applications can also benefit from the recirculating valve because pumps can be kept running while material is shut off at the mixer. Recirculation occuring at the valve instead of the pump eliminates pressure buildup in the lines, preventing off-ratio dispensing. The valve also incorporates a snuff-back feature that minimizes or eliminates the possibility of material dripping or stringing when the valve shuts off. Dispenses two-component adhesives and sealants Dispenses low- to high-viscosity urethanes, epoxies and silicones Adjustable snuff-back prevents dripping Can be mounted for beads or timed shots; optional handle is available for handheld applications Provides an ON-OFF function. The metering of the adhesives in the proper ratio of A:B is controlled by the metering pumps. Flow rates of 2-3 gallons/minute, depending on pump and material viscosity Materials remain separate until they enter the mixer Available in aluminum or stainless steel configurations Manual, robotic or stationary operation. ■ Valve: Size: 5.2“ X 2.5“ X 2.3“ (132mm X 63.5mm X 58.4mm) Body Material: 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: 1.9“ X 2.5“ X 1.5“ (48.3mm X 63.5mm X 38.1mm) Material: 6061-T6 Aluminum or 303 Stainless Steel Options: 1:1 Ratio (with or without solvent check valve) Wide Ratio (with or without solvent check valve) ■ 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: 80 psi (5.5 bar) Max. Fluid Pressure: 3500 psi (240 bar) I Nordson Electric Handle Mount Switch: 24V £F0

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Alum. Recirc Valve, Single Air Cylinder w/Snuff Back, GT Seals Stainless Steel Recirc Valve, Single Air Cylinder w/Snuff Back, TT Seals Low Flow Low Flow Low Flow Low Flow Low Flow Low Flow Low Flow Aluminum Manifold with Air/Solvent Flush Valve 1: 1 Aluminum Manifold Wide Aluminum Manifold with Air/Solvent Flush Valve Wide Stainless Steel Manifold 1:1 Stainless Steel Manifold with Air/Solvent Flush Valve 1:1 Stainless Steel Manifold Wide 90° Elbow w/1/4" FNPS 90° Elbow w/1/4" MNPT Straight Adapter w/1/4" FNPS Straight Adapter w/1/4" MNPT 90° Elbow w/3/8" FNPS 90° Elbow...

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90° Elbow w/1/4" Male JIC Straight Adapter w/1/4" Male JIC 90° Elbow w/3/8" Male JIC Straight Adapter w/3/8" Male JIC 90° Elbow w/1/4" Male JIC Straight Adapter w/1/4" Male JIC 90° Elbow w/3/8" Male JIC Straight Adapter w/3/8" Male JIC Repair KitsPart # Description 7704012 (450-RK-3-GT) 2K Kit V 450RC Repair GT Night Cap & Ratio Check CapPart # Description 7701181 (165-Cap/01*) Night Cap w/Retaining Nut 7701184 (165-RC/01*) Ratio Check Cap w/Retaining Nut *These items are used in conjunction with the 1:1 ratio manifolds Handles & BasePart # Components Description 7701971...

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Series 450RC Autovalve Recirculating Valve Ordering Guide  Valve, manifold, and handle are ordered individually  Optional pistol grip handles and swivel base are available  For high back pressure conditions (i.e. over 1,000 psi/69 bar) order a double air cylinder  Seal Designations: T=PTFE, P=Polyurethane, V=Viton®, G=Polytuff Accessories  Handles/Mounts Nordson EFD offers electric or pneumatic handles for actuating the air cylinder of the valve. If using an electric handle, a solenoid from an outside vendor is required. EFD also offers a stationary swivel base for applications where...

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