List for material characteristic of wetted part
| Abbreviation | L | C | Z | P | T |
|---|---|---|---|---|---|
|
Characteristics/ Materials |
Al cast iron | Cast iron | Stainless cast iron | Polypropylene | TeflonR |
| （AC-4C) | （FC25) | （SCS14) | （P.P.) | （PTFE) | |
| Water resistance | B | D | B | B | A |
| Oil resistance | B | B | B | B | A |
| Acid resistance | D | D | B | B | A |
| Alkali resistance | D | B | B | B | A |
| Solvent resistance | C | D | B | B | A |
| Heat resistance | A | A | A | C | D |
| Price ratio | 1 | 1.2 | 2 | 1.6 | 2.5-3.5 |
| Features |
Light weight and affordable price. |
Superior in abrasion resistance but inferior in corrosion resistance. |
Superior in corrosion resistance and abrasion resistance, but expensive. |
Chemical resistance of P.P. is inferior to that of TeflonR. |
Chemical resistance of TeflonR is excellent but the strength of TeflonR is inferior to that of P.P. Expensive. |
| NOTE ： A ： Excellent B ： Good C ： Satisfactory D ： not recommended |
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