Vim qhov kev xaiv ntawm cov khoom sib khi yog EPDM lossis NBR. Lub qhov rooj kaw qhov muag muag tuaj yeem siv rau ntawm qhov kub siab tshaj ntawm 80 ° C. Feem ntau siv hauv cov kav dej kho dej rau cov dej thiab cov dej khib nyiab. Mos sealing gate valves muaj nyob rau hauv ntau tus qauv tsim, xws li British Standard, German Standard, American Standard.Nominal siab ntawm lub qhov rooj mos yog PN10, PN16 los yog Class150.