Issue link: https://onenorgren.uberflip.com/i/1463811
280 ACC E S S O R I E S 8 For more information or for additional configurations, please contact us at NASInsideSales@imi-precision.com CHECK VALVES NVCV Series » Clamping and vacuum chucking » Pick & place of heavy loads » Hold vacuum while molds cool » Vessel evacuation » Material handling applications » Productive – high flow capacity for rapid evacuation » Safe – minimum flow restriction ensures holding force » Energy efficient – extremely low cracking pressure <1"Hg (34mbar) reaches vacuum level quickly » Compact & lightweight – easily mounts to Norgren or non- Norgren vacuum products » Options: Optional sensor/switch for positive pressure release 3 Body sizes 4 Thread sizes – 1/8" to 1/2" NPT Norgren vacuum check valves seal and hold vacuum for safe, energy efficient operations for clamping, pick & place and vessel evacuation applications. Norgren vacuum check valves are designed specifically for vacuum applications. They offer high flow capacity with minimal flow restriction and feature extremely low cracking pressures of less than 0.5"Hg (16.93mbar). The large unrestricted flow path ensures high flow at low vacuum levels. The low cracking pressure allows the vacuum system to reach its maximum vacuum level before the check valve seals off the system. With their high flow capacity and low cracking pressure, Norgren vacuum check valves offer rapid evacuation which increases process or production speed and reduces cycle times for more efficient operations. In contrast, most spring-loaded check valves marketed today are designed for high pressure systems and have high cracking pressures. When used in vacuum applications, spring-loaded check valves severely restrict vacuum flow, hindering the performance of the vacuum generator by slowing down evacuation speed and wasting energy. Norgren vacuum check valves are made of durable anodized aluminum with an internal flexible valve sealing mechanism. Norgren Vacuum Check Valves may be used with non-Norgren vacuum products. Vacuum check valves are not designed to directly support load bearing forces of any kind. Part Number Cracking Pressure Maximum Vacuum Flow w/ Zero Flow Restriction Body Material Valve Material Operating Temperature Proper Check Valve/Generator Combination (matched by flow and port size) NVCV-75-18 4.30" H 2 0 (10.7 mbar) 4.0 SCFM (113 lpm) Anodized Aluminum EPDM -20°F to +220°F (-29°C to +105°C) NHVP-100 NJ Series generators 60 through 150 NVP Series generators 60 through 150 NVCV-75-14 4.30" H 2 0 (10.7 mbar) 4.0 SCFM (113 lpm) Anodized Aluminum EPDM -20°F to +220°F (-29°C to +105°C) NHVP-200 VDF 100 and 150 NVP Series generators 60 through 150 NVCV-100-14 1.60" H 2 0 (4.0 mbar) 20.00 SCFM (566 lpm) Anodized Aluminum Silicone -50°F to +392°F (-46°C to +200°C) NHVP-300 NVDF 20 and 25 NVCV-100-38 NJ Series - 200 and 250 NVP80 Series - 200 and 250 NVCV-100-12 For use with non-Norgren products NVCV-125-38 2.70" H 2 0 (6.7 mbar) 30.0 SCFM (849 lpm) Anodized Aluminum EPDM -20°F to +220°F (-29°C to +105°C) NJ Series - 200 and 250 NVP80 Series - 200 and 250 NVCV-125-12 NVDF-37 NJ Series 300 and 350 NVP Series 300 and 350