Mechanical seal pdf

MECHANICAL SEALS : A mechanical seal is a shaft sealing device, which forms a running and dynamic seal between the rotating and stationary parts of a rotary equipment, developed to overcome the disadvantages of the traditional compression gland packing. Mechanical seals are typically used in applications for superior sealings. The best way to interchange a mechanical seal is by using the OEM part number and the “Pump Manufacturers Cross- Reference” included with this tutorial. Of course this information is not always available so below are steps to help identify the seal.

The ability of a mechanical seal to meet its performance objectives depends upon a wide range of factors involving equipment design, operating conditions, and support systems.

Included in this list is the selection of the materials of construction of the seal. In practice k values are selected between 0. With a lower k value, the safety against thermal overload will increase, but the mechanical seal may also lift off more easily. Unlike an O-Ring seal , the hydraulic diameter of a bellows seal is not a fixed geometric value.

A leakage rate of drops. Metode yang digunakan dalam pembahasan adalah analisa penggunanaan mechanical seal pada pompa industri yang meliputi analisa getaran pompa, dan evaluasi desain pompa tersebut. Plan Plan 65B Plan 66A Plan 66B What Seal flush from pump discharge through orifice.

Default single seal flush plan. Seal chamber venting on horizontal pumps. Where General applications with clean fluids. Looking For Mechanical Seal s? We Have Almost Everything On eBay.

Fast and Free Shipping On Many Items You Love On eBay. Probably the most widely recognized and also most common mechanical seal used in general service, low pressure applications. Various seal face material and o-ring can be used for wide range of application. Increase seal chamber pressure and fluid vapor margin.

These seals are suitable for handling most of the corrosive media with some solid content. No metallic parts are in contact with the media. Introduction to failures Failure of the mechanical shaft seal is the most common cause of pump downtime. The shaft seal is exposed to widely varying operating conditions.

Sometimes operating conditions change to become quite different from the specific conditions for which the seal was intended. KSB mechanical seals KSB’s range of tailored spare parts services plays a major role in the service portfolio. Impressing with a robust design, they offer service-friendly instal-lation and optimal integration in the seal chamber.

Tried and tested quality. Products and Systems Commissioning. This article will explain what a mechanical seal is and the key design features that make them work. Basics of fluid pump sealing.

A mechanical seal is simply a method of containing fluid within a vessel (typically pumps, mixers, etc.) where a rotating shaft passes through a stationary housing or occasionally, where the housing rotates around the shaft. This prevents the liquid from leaking through the clearance between the pump body and the shaft. There are various types and arrangement of the mechanical seals being used for the centrifugal pumps.

This articles describes some of the commonly used mechanical seal types like Cartridge type mechanical seals , Balanced type, Unbalanced type, Conventional, Pusher, and Non-Pusher type of mechanical seals.