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Related Manuals for FISNAR VD520-SS
Summary of Contents for FISNAR VD520-SS
- Page 1 VD520-SS Diaphragm Valve Operating Manual info@fisnar.com www.fisnar.com...
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Page 2: Table Of Contents
VD520-SS Diaphragm Valve Operating Manual Table of Contents Overview Specifications Accessories Optional Accessories Valve Operation Dispense Setup Dispense System Configurations Repair Kit Optional Tubing & Fittings Maintenance Dispense Tip Removal Spare Parts List Technical Drawing Troubleshooting © 2025 Fisnar - 2 -... -
Page 3: Overview
VD520-SS Diaphragm Valve Operating Manual OVERVIEW Model VD520-SS Diaphragm Valve The VD520-SS diaphragm valve is designed for accurately controlling the dispensing of low to medium viscosity materials. Fluid flow rate is precisely controlled through the valve and fine-tuned using the stroke adjustment knob. -
Page 4: Specifications
VD520-SS Diaphragm Valve Operating Manual SPECIFICATION Item VD520-SS Operating Air Pressure 70-100psi (4.8 – 6.9 Bar) Cycle Rate Up to 500 cycles / min Max. Fluid Pressure 70 psi (4.8 Bar) Fluid Viscosity Range 1 – 60,000 Cps Max. Flow Rate... -
Page 5: Optional Accessories
VD520-SS Diaphragm Valve Operating Manual OPTIONAL ACCESSORIES Item Description 562043U Valve Stand 562151U Robot Valve Mounting Bracket Assembly (fasteners included) 0401-08-000491 Valve Mounting Bracket (fasteners included) © 2025 Fisnar - 5 - VD520-SS Rev 05... -
Page 6: Valve Operation
Valve Closed Valve Open The VD520-SS is normally a closed diaphragm valve. When air pressure (70psi minimum) is applied into the air input (1), the piston (2) is forced upwards. This causes the sealing surface of the diaphragm (3) to lift upwards and allow fluid material to flow through and out of the fluid outlet of the valve (4). -
Page 7: Dispense Setup
If a Fisnar QuantX syringe barrel is being used as the fluid feed system to the valve, then a standard Fisnar syringe barrel adapter head assembly can be used as the pressurized air source between the syringe barrel and “Fluid Air Out”... - Page 8 VD520-SS Diaphragm Valve Operating Manual Gradually apply air pressure (80 psi) to the “Main Air In” port on the back of the controller. Slowly increase the fluid pressure by rotating the pressure regulator clockwise on the front of the VC300 valve controller.
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Page 9: Dispense System Configurations
VD520-SS Diaphragm Valve Operating Manual Dispense System Configuration Example 1 FLUID AIR OUT VALVE OPEN AIR OUT MAIN AIR IN SYSTEM PARTS Item Description Quantity VD520-SS Diaphragm Valve VC300 Valve Controller 560567M Air Filter Regulator 562354 Air Inlet Hose Assembly – 6FT 561821-BLACK Fluid Inlet Fitting –... - Page 10 VD520-SS Diaphragm Valve Operating Manual Dispense System Configuration Example 2 FLUID AIR OUT FLUID LINE VALVE OPEN AIR OUT MAIN AIR IN SYSTEM PARTS Item Description Quantity VD520-SS Diaphragm Valve VC300 Valve Controller 560567M Air Filter Regulator 562354 Air Inlet Hose Assembly – 6FT...
- Page 11 VD520-SS Diaphragm Valve Operating Manual Dispense System Configuration Example 3 MAIN AIR IN FLUID LINE VALVE OPEN AIR OUT MAIN AIR IN SYSTEM PARTS Item Description Quantity VD520-SS Diaphragm Valve VC300 Valve Controller 560567M Air Filter Regulator 562354 Air Inlet Hose Assembly – 6FT FPT800SS 8 Liter SS Fluid Reservoir –...
- Page 12 VD520-SS Diaphragm Valve Operating Manual Dispense System Configuration Example 4 MAIN AIR IN FLUID LINE VALVE OPEN AIR OUT MAIN AIR IN SYSTEM PARTS Item Description Quantity VD520-SS Diaphragm Valve VC300 Valve Controller 560567M Air Filter Regulator 562354 Air Inlet Hose Assembly – 6FT PP450-GL 4.5 Liter Clear View Fluid Reservoir –...
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Page 13: Repair Kit
VD520-SS Diaphragm Valve Operating Manual REPAIR KIT VD520SS-RK INCLUDED PARTS Item Description Quantity VD520-1-SS Fluid Body VD520-4 Tip Retaining Nut VD520-5-UHMWPE Diaphragm VD520-8 O-Ring VD520-9 O-Ring VD520-10 Spring VD520-11 O-Ring VD520-12 Socket Screw © 2025 Fisnar - 13 - VD520-SS Rev 05... -
Page 14: Optional Tubing & Fittings
VD520-SS Diaphragm Valve Operating Manual OPTIONAL TUBING & FITTINGS Hose Item Number Description Material / Color 5801060-10FT 1/4” O.D. x 0.160” I.D. Tubing Polyurethane / Clear 561415-IJ-10FT 1/4” O.D. x 0.170” I.D. Tubing Polyethylene / Natural 560722-10FT 1/4” O.D. x 0.188” I.D. Tubing... - Page 15 VD520-SS Diaphragm Valve Operating Manual OPTIONAL TUBING & FITTINGS Fluid Manifolds Item Number Description Material / Color 4 Port Fluid Manifold 560542-1/4 Acetal / Black 1/4” O.D. Tube 4 Port Fluid Manifold 560542-3/8 Acetal / Black 3/8” O.D. Tube 4 Port Fluid Manifold...
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Page 16: Maintenance
Attach and align the mounting holes of the new fluid body to the holes on the diaphragm and air cylinder body. Re-insert the two socket screws and tighten to the below specification. VD520-SS (stainless steel fluid body / UHMW-PE Diaphragm) = 0.8 Nm / 0.59 ft-lb © 2025 Fisnar - 16 -... - Page 17 Align the mounting holes of the fluid body, diaphragm, and air cylinder body. Re-insert the two socket screws and tighten to the below specification. VD520-SS (stainless steel fluid body / UHMW-PE Diaphragm) = 0.82 N*m / 0.6 ft*lb Rotate the stroke control knob clockwise until the closed position is reached. Then rotate counterclockwise to set the desired stroke / flow rate.
- Page 18 VD520-SS Diaphragm Valve Operating Manual MAINTENANCE Piston O-Ring Servicing Use the 2.5mm hex key (#562356) to remove the two socket screws. Remove the diaphragm from the piston by rotating it counterclockwise by hand. Remove the stroke control knob and spring from the air cylinder body by rotating it counterclockwise by hand.
- Page 19 13. Align the mounting holes of the fluid body, diaphragm, and air cylinder body. Re-insert the two socket screws and tighten to the below specification. VD520-SS (stainless steel fluid body / UHMW-PE Diaphragm) = 0.8 Nm / 0.59 ft-lb Rotate the stroke control knob clockwise until the closed position is reached. Then rotate counterclockwise to set the desired stroke / flow rate.
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Page 20: Dispense Tip Removal
VD520-SS Diaphragm Valve Operating Manual Dispense Tip Removal QX-TRT 1. Remove the tip retaining nut (#VD520-4) from the valve. 2. Insert the tip removal tool over the dispense tip until it is fully engaged. While twisting the tip removal tool in either direction, pull the tool backwards to remove the dispense tip from the valve fluid body. -
Page 21: Spare Parts List
VD520-SS Diaphragm Valve Operating Manual SPARE PARTS LIST – VD520-SS Ref. Item Number Description VD520-4 Tip Retaining Nut (SS 303) – Plastic Hub Tips VD520-4MT Tip Retaining Nut (SS303) – Metal Hub Tips (Optional Part) VD520-12 Socket Screw (SS) VD520-1-SS... -
Page 22: Technical Drawing
VD520-SS Diaphragm Valve Operating Manual TECHNICAL DRAWING © 2025 Fisnar - 22 - VD520-SS Rev 05... -
Page 23: Troubleshooting
VD520-SS Diaphragm Valve Operating Manual TROUBLESHOOTING PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION - Fluid pressure too low - Increase fluid pressure - Actuating air input pressure too - Check actuating air pressure is greater than 70psi No Fluid Flow - Dispense tip blocked... -
Page 24: Limited Warranty
In no event shall manufacturer be liable for consequential or incidental damages. A return authorization is required prior to shipping a defective machine to the factory. Manufacturer reserves the right to make engineering or product modifications without notice. info@fisnar.com www.fisnar.com...
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