簡介：R&M能源系統公司發布一款管線容器單片密封產品，叫做Sentry 。該產品是由密封鎖鎖定在外部法蘭或者管軸上，保證密封操作安全經濟。密封件不使用螺紋，有一個簡單的鎖緊環裝置，保證封閉更安全有效，操作更簡捷。

R&M Energy Systems has improved upon its Sentry pipeline and vessel closure technology with an innovative one-piece sealing system promising improved safety and lower cost.

The Sentry line of nonthreaded, internal door closures incorporates a sealing concept that relies on a simple locking ring that slides within a groove machined into the outer flange or hub; when expanded to the closed position, the locking ring securely locks the door in position.

The closures are designed for applications ranging from high-pressure pipelines and pressure vessels to pig traps and manway accesses. The company states that they offer several features and benefits not available in other types of closures, including:

• Greater security, thanks to heavier and more rugged locking components that retain pressure in both shear and compression modes
• Greater safety, as all locking components remain fully engaged until vessel depressurization is complete
• Ease of operation, a single operator can close even the largest closure with minimal time and effort

An improved hinge arrangement and a unique means of holding the locking segments in the open position make operation of the closure smooth and easy. The innovative method of securing the closure’s locking components to the door also helps to prevent the possibility of injury during pipeline or vessel servicing, R&M Energy Systems states.

The additional benefit of the closure’s new one-piece seal lies in its speed and ease of installation, thanks to an antiextrusion spring molded directly into the seal.  The spring ensures an additional degree of secure sealing, according to the company.

The one-piece seal is available in a variety of materials, including Viton, nitrile butadiene rubber, and hydrogenated nitrile butadiene rubber. The seals are molded in all sizes with no vulcanized splices and are available in other compounds upon request.

As with all pressure-retaining components on the Sentry closure, the one-piece seal is manufactured from ASME SA-designated materials.

To learn more, visit R&M Energy Systems’ pipeline products site.

楊寶劍 是振威（全球）石油網的高級技術編輯，在石油技術資訊行業有八年的學識和經驗。他源源不斷地提供石油行業全球最新的技術創新、研發成果、現場應用情況等信息。如果你對該項新技術有任何的疑問，或者對“新技術新產品”未來的內容有任何問題或建議，請聯系楊寶劍編輯 +86 10-58236512 Email：[email protected] 歡迎與行業互動！