McMaster 4599K48 Gradual On Off Valve, Bronze Body & Gate, Easy Maintenance, Wheel Handle Rising Stem, 2 NPT Female, Class 150, MSS SP 80 3FE91 Voltage Rating 600 V Voltage Rating 600 V Ratcheting Headgear Faceshield Assembly Headgear Suspension Ratchet Headgear Material Nylon Headgear Style Single Crown Compatible with Brand Sellstrom Includes No Visor Coatings No Minimum Operating Temperature 23 Degrees F Application Metalworking Includes Anti Fog Visor Coating Yes Welding Shade Designation W5 Face Shield Type Face Shield Assembly Maximum Operating Temperature 131 Degrees F Compatible with Series DP4 Includes Scratch Resistant Visor Coating No Suspension Adjustment Type Ratchet Secondary Visor Welding Shade Designation W5 Includes Anti Static Visor Coating No Compatible with Manufacturer Model Number S32011 you can see if flow is on or off Oil Specifications Met MSS SP 80 RoHS RoHS 3 (2015 863 EU) Compliant REACH Not Compliant DFARS Specialty Metals COTS Exempt Country of Origin United States USMCA Qualifying No Schedule B 8481