This heavy‑duty rubber diaphragm from Youqi, manufactured in Shanghai, is precision‑molded for reliable fluid‑control sealing performance. Made of premium neoprene (CR) rubber at hardness 70‑75 Shore A, it features outstanding ozone resistance, anti‑corrosion property and good electrical insulation for long‑term stable service. Standard dimension 458010 is available, while custom sizes and colors including reddish‑brown are supported.

Widely applied for diaphragm pumps, industrial fluid‑transfer equipment, water valves, crankshaft and hydraulic press rotary‑shaft sealing. We supply both standard and OEM‑custom diaphragms to match your drawing or sample requirements. Packed with branded paper, inner box and outer carton. Trust Youqi for durable, leak‑free industrial rubber diaphragm sealing spare parts for diverse industrial working conditions.