SINGLE CARTRIDGE SEALS

Our single cartridge type seal is manufactured by balanced seal-face technology, helping to reduce energy comsumption whilst increasing reliability.

Cartridge Mechanical Seal Types

Cartridge type mechanical seal is assembled by the rotary ring, stationary ring, spring, secondary seal( o rings, PTFE), gland and other mechanical seal parts together as a collection, known as the cartridge seal, sometimes also called the cartridge mechanical seal.

Single Cartridge Mechanical Seals S11

Replacement for:

John crane 5610

Features:

Single Cartridge Seals

Compact design

Easy installation

Single Cartridge Seals S15

Replacement for:

John crane SE1

Features:

Single Cartridge Seals

Safmatic seals in pulp and paper industry

Compact design

Easy installation

Single Cartridge Seals S21

Replacement for:

Burgmann Cartex SN cartridge

Burgmann Cartex QN cartridge

Features:

Single Cartridge Seals

Available in stock

Compact design

Easy installation

Single Cartridge Seals S22

Replacement for:

Burgmann Unitex cartridge

Features:

Single Cartridge Seals

Available in stock

Compact design

Easy installation

Single Cartridge Seals S51

Replacement for:

Depac 270 cartridge

Features:

Single Cartridge Seals

Available in stock

Compact design

Easy installation

Features of Single Cartridge Seals

faster and easier replacement of pump shaft seals

less downtime

reliable start-up after a sealing change

Advantage of Single Cartridge Seals

ready-to-install: components include rotating components, bushings and glands

gage bolts applied for the most gland box

easy to replace the packing or bearing

easy to install in uneasy install place

Used for longer time than non-cartridge mechanical seal

Overview of Cartridge Type Mechanical Seal

A single cartridge type mechanical seal consists of two very flat surfaces that are pressed together by a spring and slide against each other. The single mechanical seal is a mechanical seal composed of 1 set of seal face. the sealing structure is simple, easy to manufacture and install features. Generally, cartridge type mechanical seal is used for the medium with good lubricity and allows a slight leakage. Single cartridge seals are one of the most commonly used centrifugal pump seal types. Single cartridge pump seals do not work well when the media is the toxic, flammable, explosive and strict requirement of leakage.

Mechanical seals tend to leak a vapor from the high-pressure side to the low-pressure side. This fluid lubricates the seal faces and absorbs the heat generated from the associated friction, which crosses the seal faces as a liquid and vaporizes into the atmosphere. So, it's common practice to use a single cartridge mechanical seal if the pumped product poses little to no risk to the environment.

Material of Single Cartridge Mechanical Seal

When a single cartridge quality mechanical seals used in the oil-filled motor, it is not only necessary to prevent the machine outside the impurities, sand and water to enter, but also to prevent the leakage of oil within the machine, so sealing requirements is higher, sealing ring material requirements need to be good, its sealing face material is made of tungsten carbide or silicon carbide. If it is installed on the shaft of the water-filled motor shaft, it only requires sand control. The sealing ring can be made of alumina ceramic, silicon nitride or other harder materials, so the cost is relatively low.

Recommended Applications of Single Cartridge Seals

General industrial applications including chemical processing, food and beverage, petrochemical processing, pharmaceutical, wastewater and power generation.

Centrifugal pump, Chemical pump, Slurry pump, Mixer, Agitator, Circulation pump, Submersible electric pump, Reactor, Oil pump etc.

Difference Between Cartridge and Non Cartridge Mechanical Seal

Cartridge mechanical seal has a sleeve and gland; non cartridge mechanical seals only have the rotary and stationary ring.The installation error rate of the Common non-cartridge mechanical sea is higher than the cartridge mechanical seal. Therefore, use cartridge shaft seal can greatly reduce the occurrence of mechanical seal failure. Since the cartridge mechanical seal does not require any adjustment of the mechanical seal by the installer (such as spring, sealing surface, etc.), only the bolts need to be tightened, which greatly improves the reliability of the mechanical seal installation.

If you want to know more kinds of cartridge mechanical seal parts , please visit our website.

Hangzhou Sealcon Fluid Machinery Co., Ltd adopts the latest technology to produce sealing products, seal spare parts and pump and pump spare parts with long service life.

We supply a wide range of products made of different materials, including rubber, stainless steel, PTFE, carbon, ceramic, Sic, TC, etc. Also, our sealing spare parts are easy to interchange and maintain.