They constantly strive to push the envelope, exceeding customer expectations and surpassing the industry standards. Select optional impeller diameter from pump performance curve. John crane type 21 sealol type 43 pacseal type 21 john crane type 2 john crane type 1 sealol type 43 pacseal type 51 equivalent. D at only p icb e sz dgr f carbide used with the type 2100 seal. Type bootmounted stationary seal also available to suit same common uk housing sizes. The type 21 type 31 hard face is an all purpose seal which rotates with the shaft against a stationary mating face. Standard john crane type 21 mechanical seal for both reliability and availability. Eliminates potential shaft fretting damage between the seal and shaft.
In order to maximise reliability and minimise safety risks, it is strongly recommended that used seals are returned to john crane for rebuilding to asnew specification essential for noncontacting gas seals. Search in john crane catalogs and technical brochures on directindustry and find the information you need in 1 click. And our mechanical seal can totally replace original mechanical seal in sharpe agitator,ekato agitator, lightnin agitator,sardik agitator,mut agitator,mixpro agitator etc. Pressure was measured using manual dial pressure gages, which are labeled pg1 and pg2 in figure 2. We have a large selection of mechanical pump packing. The seal ring which rotates with the shaft is called the rotary ring. John crane mechanical seal is one of the most popular in the seals industry. Positive mechanical drive protects the elastomer bellows from overstressing. Type 21 elastomer bellows seals john crane mechanical seals. By replacing your old packing with new stateoftheart u. Elastomer bellows mechanical seal tg6b can replace john crane mechanical seal type 6a. Suppliers john crane for years, john crane, a world leader of engineered sealing systems and now a member of smiths group plc, has sought to take sealing technology to new heights. Pacseal type 8 and 9 seals pumps seals valves process.
John crane is an american company, now a subsidiary of smiths group and provider of engineered products and services including mechanical seals, couplings, seal support systems, filtration systems and artificial lift. The groundbreaking design was soon followed by the development and introduction of the john crane type 1, endface, elastomer bellows shaft seal. Innovators from the start, john crane designed the worlds first automotive mechanical seal in 1949. To assure satisfactory operation, handle seal with care. Do not exces sively compress the seal before or during installation. Ceramic, reaction bonded silicon carbide, stainless steel. Sealing systems for pumpssealing systems for pumps part i presented by. The seal is designed exclusively for sealing rotating shafts. Automatic adjustment compensates for abnormal shaftend play, runout, primary ring wear and equipment tolerances. The type 5611q mechanical seal is part of the 5600 universal cartridge seal family and the modular concept of john cranes universal cartridge will. John crane type 1 type 2 type 6 type 6a type 81 type 8b1 type 81t type 9 type 9t type 21 burgmann type mg type m3 type m7n g style seats flygt flowserve common stationary seats misc. A mechanical seal must always be serviced after removal from the machine. Ne seal supplies nes type 8b mechanical seal designed to replace mechanical gland packing.
The difference between single and double mechanical seals. John crane type 21 mechanical seal replacement youtube. Complies with international standard iso 3069, 5257 1975. Head type type a type b type c type d type e john crane type 6 sealol type a pac seal type 16 john crane type 6a sealol type b pac seal type 68 john crane type 21 sealol type 43 pac seal type 21 john crane type 2 john crane type 1 sealol type 43 pac seal type 51 equivalent. Specify a type 21 stationary to your complete assembly by adding an h to the end of the seal type e. Simplifies maintenance when used with spacer type coupling. Download ky type 21, john crane type 21, elastomer bellow shaft seals.
A wide variety of john crane type mechanical seals options are available to you, such as rubber, metal, and silicone. Type 21 john crane pdf catalogs technical documentation. Mechanical drive reduces slippage on shaft or sleeve to eliminate galling and premature wear. Type 21 elastomer bellows seals john crane mechanical seals about product john crane is an american company, now a subsidiary of smiths group and provider of engineered products and services including mechanical seals, couplings, hydrodynamic bearings, seal support systems, filtration systems and artificial lift. Using the basic pressure rating limits graph, the maximum pressure would be 290 psig20 barg. L ptfe encapsulated viton orings consult factory for alternate seal configurations 1. Take particular care to avoid damage to lapped sealing faces and flexible sealing rings. Seal mechanical seals, there is no more expensive shaft or sleeve. Vulcan type 24, burgmann mg912, john crane type 521, roten. John crane type 21, ky type 21, elastomer bellow shaft seals. Plan 21 what seal flush from pump discharge through orifice and cooler.
The type 21 is suitable for use with turbine pumps. Type 5860 slurry seals john crane mechanical seals. They are versatile designs using components common to other oring and wedge type seals. Take particular caution to see that the lapped sealing faces are not scratched or marred. John crane type 21 elastomer bellows mechanical seals ensure maximum reliability and uptime. View pdf catalogues and other online documentation.
John crane lemco is your complete source for mechanical seal supportsystems. John crane is the acknowledged leader in the design and manufactureof engineered seal. Available in all iron or bronze fitted construction for application versatility. John crane type 21 replacement seal single spring flex. The type 58u and 58b are multispring din 24960en 12756 seals. Installation of john crane type 81 mechanical seal 1. Mechanical face seal replacement how to use this catalogue locate the manufacturer of the equipment. Discover the pump mechanical seal product range of john crane. Type 20 and 20r ptfe bellows seals john crane mechanical. John crane type 20 and 20r ptfe bellows seals ensure maximum reliability and uptime. John crane type 21, type 21, mechanical seal manufacturer supplier in china, offering john crane type 21 mechanial seal, mechanical seal for john crane for. Piping plans help keep mechanical seals running cool and clean, promote safe handling of dangerous fluids, and extend the operational availability of rotating equipment. Replacement of john crane type 21, aes p04p04t, flowserve 110, roten 21a, sterling 212a, vulcan 11 elastomer bellows seal. Note any oil or grease, assembly lubricant, fingerprints, or other residue from the installation process can cause the seal to leak.
Sstype 32 seals can be repaired in the field to minimize replacement costs, downtime and lost revenue. They allow easy repair, reduce inventory, and permit a simple conversion to unbalanced or wedge seals. John crane type 2100, ky type 2100, elastomer bellow shaft. Ne seal also provides mechanical seal repair services and pump seal refurbishing services. John crane type 21 replacement seal single spring flexaseal. To determine the maximum pressure for the size type 9b and type 9bt seal required, multiply the maximum pressure by the. Prior to the tests conducted here, the filter unit was modified by replacing the silicon carbidesilicon carbide faced john crane type 1 mechanical seal with a john crane type 28ld air cooled seal. General if the pump has been maintained and serviced properly. Vulcan type 24, burgmann mg912, john crane type 521.
The type 21 is ideal for use in centrifugal, rotary and turbine pumps, compressors, chillers and other rotary shaft equipment. Shelby scottshelby scott western region john crane incjohn crane, inc. Type 21 elastomer bellows seals john crane mechanical seals about product john crane is an american company, now a subsidiary of smiths group and provider of engineered products and services including mechanical seals, couplings, hydrodynamic bearings, seal. John crane type1 type2 type6 type6a type81 type8b1 type81t type9 type9t type21 burgmann type mg typem3 typem7n g style seats flygt flowserve common stationary seats misc. So, its common practice to use a single mechanical seal if the pumped product poses little to no risk to the environment. Component sealssaisi burgmann john crane aes flowserve roplan.
If you have any questions, please send us an email about your technical. Aura the next generation of john crane gas mechanical. Download ky type 6, john crane type 6, pacseal type 16, us seal type a, sealol type 6, elastomer bellow shaft seals. If the products featured will be used in a potentially dangerous andor hazardous process, your john crane representative should be consulted prior to their selection and use.
John crane type 21 mechanial seal china mechanical seal. John crane type 4610 cartridge seal installation video duration. Seal design eliminates the need for double seals with ancillary equipment in mixer applications. For over 80 years john crane has been redefining the limit of seal support technology. John crane is an american company, now a subsidiary of smiths group and provider of engineered products and services including mechanical seals, couplings, hydrodynamic bearings, seal support systems, filtration systems and artificial lift. This generalpurpose seal has become the industry standard. Piping plans help keep mechanical seals running cool and clean, promote safe handling of dangerous fluids, and extend the operational. Sshs and mgroup and sshf, c submittals xylem applied. Alternatively ask for john crane service personnel to visit site. The mechanical seal is the john crane type 21 general purpose seal for the 175 psig pressure rating. A wide variety of john crane type 1 mechanical seal options are available to you, such as material. Trusted supplier of quality mechanical seals and supporting products for over. John crane type 8b1 replacement mechanical seals flexaseal. Sarbs pump maintenance seminar, june 7, 2012 packing mechanical seal basics pros.
Designed with a drive band and drive notches, this type of mechanical seal has a strong ability. 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. To determine the maximum pressure for the size type 9b and type 9bt seal required, multiply. The type 21, a general purpose seal, has become an industry standard with oem designers. Type 21 central oring stationary seals vulcan seals. Our generalpurpose mechanical seal has become the industry standard for oem designers. Replaceablewearing components include stainless steel shaft sleeve and casing wear ring to maintain peak efficiency. Ss type 2b type 2b ss type 6 type 6 ss type 21 type 21 p04p04t 110 21a 212a 11 ptfe wedge mecanical seal saisi burgmann john crane aes flowserve roplan roten sterling vulcan ss9bt tyep 9bt m06 294b 1645b ss9t type 9t m05 294 1645 ss59b btc56. Mechanical seal equivalents cdk seals, unit 11 bartlett. Download ky type 24, vulcan type 24, burgmann mg912, john crane type 521, roten type 52, elastomer bellow shaft seals. Type 21 central oring mounted stationary mechanical seals central oring mounted, short fitting length stationary seal with antirotation pin slot feature on rear face.
John crane mechanical seals tencarva machinery company. The leading john crane type 81 multi spring mechanical seals manufacturers and suppliers in china, offers john crane81 multi spring seal o ring mechanical seals with competitive price here. Mechanical seals american coding system vulcan seals. A common seal headmating ring set, utilized throughout all versions, is reversible to allow rotating seatmating ring or rotating seal head operation, and is interchangeable with metal bellow seal heads. Sealing systems for pumpssealing systems for pumps. Download ky type 2100, john crane type 2100, elastomer bellow shaft seals. It features chemically inert materials in all areas and on all surfaces. Get expert assistance specifying the right mechanical seal for your job. Standard john crane type 21 with carbon versus siliconcarbide faces, viton elastomers, and 316 stainless metal parts. A wide variety of john crane mechanical seal type 2 options are available to you, such as material.
A wide variety of john crane mechanical seal type 21 options are available to you, such as material. John crane type 6, pacseal type 16, us seal type a. Our generalpurpose type 21 mechanical seal has become the industry standard for oem designers. Rigidly supported, grease lubricated ball bearing assembly. The rotaries feature seal rings which are replaceable. The rotary unit is set screwed to the shaft, for positive drive. Enclosed impeller with unique floating seal ring design maintains maximum efficiency over the life of the pump without adjustment. While vulcan seals operates its own global mechanical seal coding system, we also incorporate common american coding systems for all standard american mechanical seals to ensure we maintain simplicity of business. Nes 8b equivalent to john crane 8b2 pusher type mechanical seal. John crane mechanical seals and seatsmating rings are precision prod ucts and must be handled appropriately. The john crane type 81 seal is a precision product. Type 21 elastomer bellows seal speed limits for your nearest john crane facility, please contact one of the locations above. The manufacturer listings are alphabetical, refer to pages 7. A john crane type 2 general purpose seal is used for the 300 psig pressure rating.
Providing unrivaled expertise, innovation and reliability, john crane lemco is the solution. While vulcan seals operates its own global mechanical seal coding system, we also incorporate common american coding systems for all standard american mechanical. John cranes comprehensive range of products has you covered. Our product widely used in ksb pumps, grundfos pumps,flowserve pumps, etc. Sealing systems for pumpssealing systems for pumps part i. Tng seal offers all kinds of replacement mechanical seals for john crane mechanical seal,burgmann mechanical seal,flowserve mechanical seal,roten mechanical seal,chesterton mechanical seal, aesseal mechanical seal, latty, itt,xylem,flygt pump seals,grundfos pump seals,afla laval seals,a. John crane has a strong legacy that dates back to the creation of the crane packing company in 1917. Ku type 59u m03 259 1659 ss type 9 type 9, type 109, type 909.
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