Issue link: https://onenorgren.uberflip.com/i/1463811
109 VA R I A B L E VAC U U M G E N E R ATO R S 3 For more information or for additional configurations, please contact us at NASInsideSales@imi-precision.com NVDF Noise Levels @ 80 PSI With Silencer Without Silencer Model Silencer Open Flow Sealed Vacuum Open Flow Sealed Vacuum NVDF-10-P**-S05M** NST4 70db 68db 88db 76db NVDF-15-P**-S05M** NST4 74db 68db 88db 90db NVDF-20-P**-S05M** NST4 78db 80db 86db 100db NVDF-20-P**-S06M** NST4A 76db 80db 86db 100db NVDF-25-P**-S06M** NST4A 82db 80db 90db 100db NVDF-25-P**-S07M** NST4A2 84db 82db 90db 100db NVDF-37-P**-S11M** NST8B 88db 82db 102db 104db NVDF-50-P**-S20M** NST12C 82db 78db 96db 100db NVDF-75-P**-S21M** NST16C 98db 88db 112db 108db Noise levels at 80PSI 1. Loosen jam nut by rotating counter-clockwise. (Typically, unless pinned, your NVDF will arrive completely closed.) 2. Rotate exhaust body clockwise until closed, jam nut should be loose on exhaust body. 3. Attach air line to air supply port and vacuum line to vacuum port or connect cup to port. See chart for minimum recommended line sizes. 4. Turn on compressed air. 5. Rotate exhaust body counter-clockwise to the desired vacuum level using rotation chart on page 107. Charts are based on 80 PSI [5.5 bar] and 60 PSI [4.1 bar] to provide a starting point. Generators will achieve maximum vacuum levels at any pressure above 50 PSI [3.4 bar] (pressure regulator is not required). For a more precise reading, Norgren recommends the use of a NVG-150 Vacuum Gauge to measure and/or set vacuum level. Consult factory. 6. Aer achieving desired vacuum level, tighten jam nut by rotating clockwise. Note 1: Further rotation will increase the vacuum level, while the flow remains constant. Note 2: NVDF-37 and larger, it may be necessary to turn compressed air off while making adjustments to relieve pressure on threads and make rotating easier. Note 3: "Preset" NVDF's are permanently locked at the factory at a customer specified vacuum level and are not adjustable. Note 4: "Preset" generators are not returnable. Operating Instructions Warnings Improper selection, misuse, age or malfunction of components used in systems can cause failure in various modes. The system designer is warned to consider the failure modes of all component parts and to provide adequate safeguards to prevent personal injury or damage to equipment or property in the event of such failure modes. System designers and end users are cautioned to consult instruction sheets and specifications available from the factory. The system designer/end user is responsible for verifying that all requirements for the application are met. Warranty The products described herein are warranted subject to seller's Standard Terms and Condition of Sale, available at seller's website.