Mechanical Seal Types — Which One Does Your Pump Need?
The main types of mechanical seals
Click on each section to find out about the range of mechanical seals we have IN STOCK at Rural Pumps:
Type 6 seals are the most common seal for small domestic pressure pumps including Davey and Onga models
Type 6A seals suit lower pressure irrigation and water transfer pumps.
Type 21 seals are generally widely used for some larger high pressure water transfer pumps and irrigation pumps, particularly Southern Cross ISO type centrifugal pumps.
Type 55 seals (also known as Burgmann B01 or BT-AR) are widely used generally for smaller domestic pumps and for water transfer pumps.
Type 21 seals are generally widely used for some larger high pressure water transfer pumps and irrigation pumps, particularly Southern Cross ISO type centrifugal pumps.
Type MG1 seals are widely used in small domestic and industrial high pressure pumps, most commonly the horizontal multistage pumps from Davey, Franklin and others.
The Type 3 mechanical seal in both Simplex/Roten and Uniten dimension’s are one of the most common mechanical seal types in small water transfer and domestic pressure pumps. These are used alot in Italian style pump brands like Lowara.
Cartridge type seals (also known as Grundfos seals or VM seals) are a particular type of integrated design widely used in vertical multistage industrial pumps, particularly the Grundfos CR/ CRE and similar like the Davey VM.
The Type 3 mechanical seal in both Simplex/Roten and Uniten dimension’s are one of the most common mechanical seal types in small water transfer and domestic pressure pumps. These are used alot in Italian style pump brands like Lowara.
The Grundfos CH and CM range of domestic/ small industrial horizontal multistage pressure pumps have 2 very distinct designs of mechanical seal. We stock high quality equivalents of both of these seals at Rural Pumps.
Gland packing is a woven synthetic rope style product that is wrapped around the shaft of a pump outlet and contained and compressed by a bracket called a packing housing or stuffing box. This forms a seal allowing the pump to work properly. Alot of older style and specialised application pumps utilise gland packing instead of a mechancial seal.
Please contact us if you are looking for something unusual or use our pump selector in our webshop to get a replacement seal for your pump.
