Nitrile Diaphragm, 113N-18, a replacement for Edson models 220 power pumps and models 217, 254, 256 and 258 manual pumps.
Nitrile is an elastomer with very good dynamic strength and is highly resistant to the effects of oils and general waste products.
Viton Diaphragm, 113V-18, a replacement diaphragm for Edson models 220 power pumps and models 217, 254, 256 and 258 manual pumps. Viton® is a DuPont fluoroelastomer with good dynamic strength and excellent heat resistance (400°F/200°C). It is formulated to resist the effects of aromatic hydrocarbons and a variety of very aggressive fuels and chemicals. (Viton® is a registered trademark of E. I. DuPont.)
Replacement Diaphragms & Valve Assemblies - Data Sheet
| Elastomer | Best Used For* |
| Nitrile | Foodstuffs |
| Fuels/Oils | |
| Wastewater | |
| Alcohols | |
| Viton | Inorganic Acids |
| Fuel/Oils | |
| Inorganic Chemicals | |
| Harsh Weather Conditions (Heat/Sunlight) | |
| *Please consult a chemical compatibility database for material-specific questions. | |
