閥門密封劑介紹（中英文）
什么是閥門密封劑？ / What is Valve Sealant?
在閥口周圍形成靈活的可再生密封。
每個(gè)潤(rùn)滑旋塞閥的組成部分。
抵抗線路介質(zhì)的化學(xué)侵蝕和溶解特性。
結(jié)合基礎(chǔ)油、增稠劑和添加劑。
Forms a flexible renewable seal around the valve port.
An integral part of every lubricated plug valve.
Resists chemical attack and dissolving characteristics of line medium.
Combines base oils, thickeners and additives.
為什么要使用閥門密封劑？ / Why Use Valve Sealants?
緊密密封 – 為了確保絕對(duì)緊密的密封，密封劑的薄膜在閥門的密封表面之間形成密封。 密封由密封劑形成，密封劑通過閥口周圍的通道系統(tǒng)傳輸。 通過為客戶的特定服務(wù)選擇適當(dāng)?shù)拿芊鈩?，可以在很寬的溫度和壓力范圍?nèi)保持密封。
Drop-Tight Seal – To secure an absolutely tight seal, the film of the sealant works to form a seal between the sealing surfaces of the valve. The seal is formed by sealant transmitted through a system of passageways around the valve port. With proper selection of sealant for your particular service, the seal can be retained over a wide range of temperatures and pressures.
潤(rùn)滑 – 通過覆蓋軸承不規(guī)則處來防止閥門密封服務(wù)的金屬與金屬接觸。 無論金屬表面研磨得多么精細(xì)，金屬都是一系列的峰谷。 當(dāng)一種金屬相對(duì)于另一種金屬滑動(dòng)時(shí)，會(huì)產(chǎn)生摩擦，并可能導(dǎo)致粘附、剪切或犁溝。 軸承區(qū)域上的密封劑保護(hù)膜可防止金屬與金屬之間的摩擦。
Lubrication – Prevents metal-to-metal contact of the valve sealing services by filming over bearing irregularities. No matter how finely ground a metal surface may be, the metal is a series of peaks and valleys. As one metal slides against another, friction is set up and adhesion, shearing, or plowing may result. A protective film of sealant over the bearing area prevents metal-to-metal rubbing.
可更換閥座 – 無需拆卸潤(rùn)滑閥或停止使用即可更換輕度損壞的閥座。 密封劑作為潤(rùn)滑閥的結(jié)構(gòu)部分，提供了一個(gè)靈活且可更換的閥座，消除了強(qiáng)制配合接觸以實(shí)現(xiàn)密封的必要性。 為此，密封劑不僅必須具有適當(dāng)?shù)目伤苄?，而且還必須具有耐溶劑和化學(xué)品等管線流體的能力。 即使在壓力下，密封劑也能在閥門的密封表面之間形成密封。
Renewable Seat – There is no need to disassemble a lubricated valve or remove it from service to replace mildly damaged seats. Sealant, as a structural part of lubricated valves, provides a flexible and renewable seat, eliminating the necessity of force fit contact to effect a seal. For this purpose, the sealant not only must have proper plasticity, but also resistance to line fluids such as solvents and chemicals. Sealant forms a seal between the sealing surfaces of the valve even under pressure.
旋塞頂升 – 傳統(tǒng)潤(rùn)滑旋塞閥設(shè)計(jì)的基本工作原理在于帕斯卡定律的應(yīng)用。 該定律指出，施加到密封容器中液體的單位壓力會(huì)以不減力的方式傳遞到液體的每個(gè)部分，從而使力成倍增加，具體取決于容器內(nèi)部的面積。 在密封劑注入產(chǎn)生的壓力下，密封劑提供液壓裝置，以便在需要用力來釋放塞子時(shí)將塞子從其錐形座中提起。
Plug Jacking – The fundamental operating principle of the traditional lubricated plug valve design lies in the application of Pascal‘s Law. The law states that a unit pressure applied to the liquid contained in a sealed vessel is transmitted to every part of the liquid with undiminished force, thus multiplying the force many times, depending on the area of the interior of the vessel. The sealant, under pressure developed by sealant injection, supplies the hydraulic means for lifting the plug from its tapered seat when and if that force is needed to free the plug.
耐腐蝕 – 有助于防止閥門內(nèi)部腐蝕。
Corrosion Resistance – Helps prevent corrosion of valve internals.
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