补充描述:
Metal and plastic diaphragm pumps are offered in five sizes from 1/2 inch to 3 inches, covering a range of flow requirements. Diaphragm materials include neoprene, santoprene and PTFE, with a diaphragm service life exceeding 20 million pump cycles, and ball valve components (valve ball and seat) also available in neoprene, santoprene or PTFE.
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