Pump Seal Plate
 |
US $34.99
End face mechanical seal
An end face mechanical seal, also referred to as a mechanical face seal but usually simply as a mechanical seal, is a type of seal utilised in rotating equipment, such as pumps and compressors. When a pump operates, the liquid could leak out of the pump between the rotating shaft and the stationary pump casing. Since the shaft rotates, preventing this leakage can be difficult. Earlier pump models used mechanical packing to seal the shaft. Since World War II, mechanical seals have replaced packing in many applications.
An end face mechanical seal uses both rigid and flexible elements that maintain contact at a sealing interface and slide on each other, allowing a rotating element to pass through a sealed case. The elements are both hydraulically and mechanically loaded with a spring or other device to maintain contact. For similar designs using flexible elements, see Radial shaft seal (a.k.a "lip seal") and o-rings.
A mechanical seal must contain four functional components: 1) Primary sealing surfaces, 2) Secondary sealing surfaces, 3) a means of actuation and 4) a means of drive.
1) The primary sealing surfaces are the heart of the device. A common combination consists of a hard material, such as silicon carbide or tungsten carbide, embedded in the pump casing and a softer material, such as carbon in the rotating seal assembly. Many other materials can be used depending on the liquid's chemical properties, pressure, and temperature. These two rings are in intimate contact, one ring rotates with the shaft, the other ring is stationary. These two rings are machined using a machining process called lapping in order to obtain the necessary degree of flatness.
2) The secondary sealing surfaces (there may be a number of them) are those other points in the seal that require a fluid barrier but are not rotating relative to one another.
3) In order to keep the two primary sealing surfaces in intimate contact, a means of actuation must be provided. This is commonly provided by a spring. In conjunction with the spring, it may also be provided by the pressure of the sealed fluid.
4) The primary sealing surfaces must be the only parts of the seal that are permitted to rotate relative to one another, they must not rotate relative to the parts of the seal that hold them in place. To maintain this non-rotation a method of drive must be provided.
All mechanical seals must contain the four elements described above but the way those functional elements are arranged may be quite varied. The standards of modern mechanical seals are widely defined by API Standard 682 - Shaft Sealing Systems for Centrifugal and Rotary Pumps.
Mechanical seals are generally classified into two main categories: "Pusher" or "Non-Pusher". These distinctions refer to whether or not the secondary seal to the shaft/sleeve is dynamic or stationary. Pusher seals will employ a dynamic secondary seal (typically an o-ring) which moves axially with the primary seal face. Non-pusher seals will employ a static secondary seal (either an o-ring, high temperature graphite packing, or elastomeric bellows). In this case, the face tracking is independent of the secondary seal which is always static against the shaft/sleeve.
A "cartridge seal" is a prepackaged seal that is common in more complex applications. Cartridge seals were originally designed for installation in equipment where a component type seal was difficult due to the design of the equipment. Examples of this are horizontally split and vertical pumps. In 1975 the A W Chesterton Company designed the first cartridge seal that fit pumps with varying stuffing box bore sizes and gland bolt patterns. To accomplish this the seal utilized internal centering of the stationary parts and slotted bolt holes. This "generic" cartridge seal could be manufactured in higher production quantities resulting in a cartridge seal that could be used in all applications and pumps types. In 2000 Gold Seals, Inc. (acquired by Chesterton in 2001) invented an iteration of the cartridge seal called a cassette seal. This seal utilized a replaceable inner "cassette" mounted in the Cartridge end plate or gland simplifying the repair of the cartridge seal.
Gap seals are generally used in bearings and other constructions highly susceptible to wear, for example, in the form of an O-ring. A clearance mechanical seal is used to close or fill (and join) spacing between two parts, e.g. in machine housings, to allow for the vibration of those parts. An example of this type of seal is the so-called floating seal which can be easily replaced. These seals are mostly manufactured from rubber or other flexible but durable synthetic materials.
About the Author
Ningbo Yinzhou Guowei, mechanical seal Component Factory is a professional engaged in the design, development, manufacture, sale of various cartridge seal and flygt seals business. Production and testing are well-equipped with a high-quality staff.
|
|
Medfusion Seal Float Plate for Medfusion 3500 Pump $45.22 Medfusion Seal Float Plate for Medfusion 3500 Pump |
|
|
Water Pump Seal $2.99 Water Pump Seal; |
|
|
Butter Women's Seal Wedge Pump $330 Butter Women's Seal Wedge Pump |
|
|
Comp Pump Seal And Repair Kit $34.99 Comp Pump Seal And Repair Kit; For 40 Series Pump; Gasoline; |
|
|
Water Pump Oil Seal $3.46 Water Pump Oil Seal size 10a?20a?5 for 250cc 4-stroke water-cooled CN250 172mm engines. Shop the largest selection of scooter parts , gas scooters , electric scooters , and motorized scooters for sale. |
|
|
Comp Pump Seal And Repair Kit for Jeep $34.99 40 series pump;Gasoline Comp Pump Seal And Repair Kit for Jeep |
|
|
Water Pump Seal for Jeep $2.99 1946 to 1971 Jeep CJ;1941 to 1945 M38;1941 to 1945 Willys MB and Ford GPW;134 engines JEEP CJ-2A CJ-3A CJ-3B CJ5 CJ6 M38 MB 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 2.2L (134) 3.1L Diesel (192) 3.7L Dauntless (225) DIESEL GAS Water Pump Seal for Jeep |
|
|
American Standard M9625942950A Dial Plate and Seal Postsmouth Satin Nickel $30.59 Dial Plate and Seal Postsmouth. Finish: Satin Nickel. |
|
|
Maryland License Plate, State Seal MD-103 $9.99 Maryland State Seal MD-103 |
|
|
2011 Infiniti QX56 Fuel Pump Seal OES Genuine Infiniti Fuel Pump Seal W0133-1849470 $12.95 . auto parts warehouse has extensive oes genuine fuel pump seal catalogs.we are now offering free shipping on all oes genuine fuel pump seal orders over $50.00. our secure oes genuine fuel pump seal catalog is available every hour of everyday. shop with confidence for all your oes genuine fuel pump seal needs. oes genuine fuel pump seal are in stock and available today. save upto 60% off dealer price on your next oes genuine fuel pump seal purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices |
|
|
1996 Acura SLX Oil Pump Seal Nippon Reinz Acura Oil Pump Seal W0133-1635643 $11.95 . auto parts warehouse has extensive nippon reinz oil pump seal catalogs.we are now offering free shipping on all nippon reinz oil pump seal orders over $50.00. our secure nippon reinz oil pump seal catalog is available every hour of everyday. shop with confidence for all your nippon reinz oil pump seal needs. nippon reinz oil pump seal are in stock and available today. save upto 60% off dealer price on your next nippon reinz oil pump seal purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices |
|
|
2011 Infiniti QX56 Fuel Pump Seal OES Genuine Infiniti Fuel Pump Seal W0133-1849470 11 $12.95 . Auto Parts Warehouse has extensive OES Genuine Fuel Pump Seal catalogs.We are now offering FREE shipping on all OES Genuine Fuel Pump Seal orders over $50.00. Our secure oes genuine fuel pump seal catalog is available every hour of everyday. Shop with confidence for all your oes genuine fuel pump seal needs. OES Genuine Fuel Pump Seal are In Stock and available today. Save up to 60% off dealer price on your next OES Genuine Fuel Pump Seal purchase. Our online catalog contains a wide selection of the OEM and aftermarket parts you need at unbeatable prices |
|
|
1986-1993 Toyota Celica Oil Pump Seal Beck Arnley Toyota Oil Pump Seal 052-3691 $2.87 beck arnley engine oil pump seal a high quality direct fit oe replacement engine oil pump seal with 90-day or 4 000-mile beck arnley warranty auto parts warehouse has extensive beck arnley oil pump seal catalogs.we are now offering free shipping on all beck arnley oil pump seal orders over $50.00. our secure beck arnley oil pump seal catalog is available every hour of everyday. shop with confidence for all your beck arnley oil pump seal needs. beck arnley oil pump seal are in stock and available today. save upto 60% off dealer price on your next beck arnley oil pump seal purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices |
|
|
1984-1993 Toyota Celica Fuel Pump Seal Carter Toyota Fuel Pump Seal PTS2005 $12.56 carter fuel pump tank seal a high quality direct fit oe replacement fuel pump tank seal auto parts warehouse has extensive carter fuel pump seal catalogs.we are now offering free shipping on all carter fuel pump seal orders over $50.00. our secure carter fuel pump seal catalog is available every hour of everyday. shop with confidence for all your carter fuel pump seal needs. carter fuel pump seal are in stock and available today. save upto 60% off dealer price on your next carter fuel pump seal purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices |
Tags: assembly,, bimetal, bush, c, pool pump seal plate, pump seal plate