| Component | Material | Chemical Composition |
|---|---|---|
| Diaphragm | Natural Rubber | Mostly composed of polyisoprene and small impurities |
| EPDM (Ethylene Propylene | Ethylene and propylene copolymers with diene monomer | |
| Diene Monomer) | units | |
| PTFE (Polytetrafluoroethylene) | Polytetrafluoroethylene polymer | |
| Buna-N (Nitrile Rubber) | Acrylonitrile and butadiene copolymer | |
| Viton (Fluoroelastomer) | Hexafluoropropylene and vinylidene fluoride copolymer | |
| Valve Body | PVC (Polyvinyl Chloride) | Vinyl chloride monomers polymerized to form PVC |
| CPVC (Chlorinated | Chlorine-treated PVC, enhancing heat and chemical | |
| Polyvinyl Chloride) | resistance | |
| PP (Polypropylene) | Propylene monomers polymerized | |
| PVDF (Polyvinylidene | Vinylidene fluoride monomers polymerized | |
| Fluoride) | ||
| Stainless Steel | Iron, chromium, nickel, and small amounts of other | |
| elements | ||
| Valve Stem | Stainless Steel | Iron, chromium, nickel, and small amounts of other |
| elements | ||
| Carbon Steel | Mainly composed of iron and carbon, with small amounts | |
| of other elements | ||
| Brass | Mainly copper and zinc, with small amounts of other | |
| elements | ||
| Alloy Steel | Iron with varying amounts of other elements such as | |
| chromium, manganese, nickel, and others | ||
| Valve Seat | PTFE (Polytetrafluoroethylene) | Polytetrafluoroethylene polymer |
| EPDM (Ethylene Propylene | Ethylene and propylene copolymers with diene monomer | |
| Diene Monomer) | units | |
| Buna-N (Nitrile Rubber) | Acrylonitrile and butadiene copolymer | |
| Viton (Fluoroelastomer) | Hexafluoropropylene and vinylidene fluoride copolymer | |
| Neoprene Rubber | Polychloroprene polymer |