Valves
Poppet
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| Option | Application | Temperature Range | Option Code |
| Buna-N | A soft, synthetic rubber for service in petroleum oils, air, water, mild acids, alcohol, acetylene, kerosene, lime solutions, liquefied petroleum gas and turpentine. | -30°F to +250°F | Standard |
| Brad Harrison® Electrical Connector | Optional electrical connection for Bronze Star™ series only | Depends on seal material. | -21 |
| Molybdenum Disulfide Impregnated Buna-N | For non-lube air service – dynamic seal only. Buna-N furnished for all static seals. | -30°F to +250°F | -25 |
| Viton® | A high temperature soft synthetic material used for many fluids not compatible with Buna-N or when higher temperature operation is desired. | 0°F to +400°F | -26 |
| Stainless Steel Hardware | For use in corrosive external environments. | Depends on seal material. | -27 |
| Poppet Seal and Dynamic Seals Teflon®- Balance of Seals Viton® | High temperature gases and fluids, phosphate esters and glycol oils. | 0°F to +400°F | -28 |
| Ethylene Propylene (EPR) | Excellent for use with phosphate ester type fluids. Not compatible with petroleum based lubricants and hydraulic oils. | -70°F to +250°F | -29 |
| Vacuum Service | Inverted stem seal - used when vacuum is main media in normally closed valves only. | Depends on seal material. | -31 |
| Teflon® Poppet Seal and Stem Seal - Ethylene Propylene (EPR) Seal on Poppet Guide - Viton® U-cup on Pilot Piston | Steam service with high temperature water. Note: 100 PSI or less. Consult factory before ordering any valves for steam service. | 0°F to +250°F | -32 |
| Nickel-Plated Brass Pilot Cap with Brass Pilot Piston | Required when using water or other corrosive pilot media and/or with corrosive external environments. | Depends on seal material. | -B |
| Pilot U-cup Expander Ring | Required when using liquids for pilot signal (oil, water, etc.) | Depends on seal material. | -H |