Series 450 XT Snuff Back Valve Urethane Dispenser Innovative Valve for Two Component Urethanes In response to your needs, Nordson EFD has designed and manufactured an innovative dispense valve specifically for two-component urethanes. Since two-component urethanes are moisture sensitive, any contact with air can cure the material, locking up the dispense valve. This production proven design eliminates exposure of wetted shafts to air.  Uses same manifold and ergonomic handle as standard Series 450 valve.  A thicker tie plate increases the distance between the lip seals to be more than the stroke length, resulting in extended seal life and less down time. Advantages  Easy to Clean: If cross contamination occurs, the manifold can be removed and cleaned without disassembly of the valve body  Optional Stainless Steel Valve: Recommended for corrosive acrylics or epoxies  Flush Valve Manifold: For cleaning the mixing nozzle with air or solvent. A check valve is threaded into the side of the manifold.  Lubricated and Hard Coated Shafts: Lubricated with Nordson EFD Autogrease for moisture sensitive adhesives and hardcoated to resist abrasive adhesives  Optional Polytuff, PTFE, Viton®, and EP Seals: For varying chemical formulations and abrasive conditions.  Optional Night Cap & Ratio Check Cap: Available for 1:1 ratio manifolds Specifications  Weight (Aluminum Valve and Manifold): 1.6 lbs (0.7 kg)  Weight (Stainless Steel Valve and Manifold): 2.5 lbs (1.1 kg)  Pressure Rat

Series 450 XT Snuff Back Valve Urethane Dispenser Series 450 XT Snuff Back Valves Aluminum Valve Stainless Steel Valve Extended Air Cylinder w/SnuffBack & GT Seals Extended Air Cylinder w/SnuffBack & GT Seals Ratio Flow Rate Handles & Base Aluminum Manifold 1:1 Low Flow Aluminum Manifold with Air/Solvent Flush Valve 1:1 Low Flow Aluminum Manifold Wide High Flow Aluminum Manifold with Air/Solvent Flush Valve Wide High Flow Stainless Steel Manifold 1:1 Low Flow Stainless Steel Manifold with Air/ Solvent Flush Valve 1:1 Low Flow Stainless Steel Manifold Wide High Flow Carbon Steel Pipe Adapters...

Series 450 XT Snuff Back Valve Urethane Dispenser Swivel Check Valve Adapters Part # SS w/Alum. Collar, 1/4" FNPT Carbon Steel 37° JIC Adapters Part # 90° Elbow w/1/4" Male JIC Straight Adapter w/1/4" Male JIC Straight Adapter w/3/8" Male JIC Repair Kits Part # Night Cap & Ratio Check Cap Part # Ratio Check Cap w/Retaining Nut *These items are used in conjunction with the 1:1 ratio manifolds 316 Stainless Steel 37° JIC Adapters Part # Straight Adapter w/1/4" Male JIC Straight Adapter w/3/8" Male

Series 450 XT Snuff Back Valve Urethane Dispenser Ordering Guide  Valve, manifold, and handle areordered 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...