Valmatic valve V-type packing - self adjusting and replaceable while under pressure.Stainless steel radial upper and lower bearings - permanently lubricated for extended life。美國(guó)消聲止回閥valmatic球閥上海經(jīng)銷處供應(yīng)。
Valmatic球閥單活塞效應(yīng)的座位(數(shù)據(jù)備份系統(tǒng))標(biāo)準(zhǔn),雙活塞效應(yīng)可用座位(DIB),Valmatic valve V-type packing - self adjusting and replaceable while under pressure.Stainless steel radial upper and lower bearings - permanently lubricated for extended life。美國(guó)消聲止回閥valmatic球閥上海經(jīng)銷處供應(yīng)。