男人插女人骚视频,波多野结衣人妻厨房大战,亚洲国产精品成人精品无码区,亚洲 欧美 国产 综合首页

進口波紋管焊接針型閥質量耐用德國洛克

一、進口波紋管焊接針型閥技術參數:

口徑規格:￠3≈￠25

公稱壓力:1.0-6.4Mpa

適用溫度:-40≈450℃

連接方式:對焊接式

閥體材質:A105、SS304、SS304L、SS316、SS316L、WC6、WC9

二、進口波紋管焊接針型閥描述：

德國《DE LOCKE》洛克進口波紋管焊接針型閥的波紋管下端焊接在閥桿上，以防止工藝流體浸蝕閥桿，另一端置于閥體和閥蓋之間構成靜密封。采用合適的材料，波紋管閥可用于高溫500℃和高壓2500Ib（42MPa）工況中。通常閥門行程為波紋管自由長度的15%，因而波紋管占據很大的壓力空間，制造工藝相對復雜，價格較貴。但與傳統填料密封閥門相比，閥桿的密封更加可靠，在外泄漏要求比較嚴格的場合，如有毒介質、強腐蝕介質和放射性介質以及熱油等場合中應用廣泛。

The lower end of bellows is welded on the valve stem to prevent the process fluid from eroding the valve stem, and the other end is placed between the valve body and the valve cover to form a static seal. The bellows valve can be used at high temperature of 500 ℃ and high pressure of 2500ib (42MPa) with suitable materials. Usually the valve stroke is 15% of the free length of the bellows, so the bellows occupy a large pressure space, the manufacturing process is relatively complex and the price is relatively expensive. But compared with the traditional packing seal valve, the sealing of the valve stem is more reliable, and it is widely used in the occasions with strict external leakage requirements, such as toxic medium, strong corrosive medium, radioactive medium and hot oil.

三、進口波紋管焊接針型閥技術參數：