Val-40 nke na-ese n'elu mmiri na-eme ihe na-acha odo odo na plọg na-achịkwa nke agịga agịga maka agịga maka ịmịcha ahụ. Oseihe nwaanyivalvuNa-eji mpaghara nrụgide dị iche iche nke na-egosi mpaghara aka ekpe nke pish ahụ buru ibu karịa nke ziri ezi. Mmanụ nrụgide ahụ na-abanye oghere ekpe site na ihe ngosi aka ekpe site na aka ekpe, ka ị mee akụkụ aka nri nke piston na-emeghe elu. Buyaxcy na-abawanye na mmiri mmiri-ọkwa mmanụ mmanụ na-ebili, na bọl na-ese n'elu na-akpali. Mbekọta agịga na-agagharị na aka ekpe, a na-adọba mmanụ ahụ na oghere ekpe site na nkwụnye n'okpuru na plọg agịga. Mgbe nsogbu aka ekpe na-ebelata, piston na-aga n'aka ekpe ka ọ na-emegharị na mgbali dị iche iche. Piston mepere emepe ma na-amalite igbapu. Ma ọ bụghị ya, piston mechiri ma kwụsị ịdọcha mmiri mgbe mmiri-larịị-larịị mmiri na-ada.
Parameters bụ isi nke FY-40valvụ na-ese n'elu mmiri:
1. Nrụgide Nominal: 0.5 MPA
2. Nkebi: φ40mm
3. Max na-arụ ọrụ strok: 10 mm
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