Secondary seal nbrepdmviton spring and punched parts ss304ss316 working conditions. The john crane type 81 seal is a precision product. John crane type 28xp dry gas seals ensure reliability and uptime in missioncritical applications. Equivalent to aes m01s,john crane type 81 multiple spring design,unbalanced seal operating limits. Multiple seals with inert buffers can be applied to toxic gas installations. The majority of dry gas seal failures occur in low suction pressure services, where the flare header pressure can exceed the seal gas supply pressure.
In our wet gas centrifugal compressor capacitytph, dry. The range of seals available includes high performance, low emission petroleum seals, vessel and agitator seals, heavyduty slurry seals and a variety of elastomer, formed and metal bellows seals suited to numerous applications. China dry running mechanical seal john crane type 32i china. John cranes comprehensive range of dry gas mechanical seals are designed to provide you with the correct seal solution suited for your specific application, to ensure optimal reliability, safety and performance. Type 28st dry gas seals john crane mechanical seals. Perfect replacement of john crane type 8b1t, component mechanical seals.
The type 83 and type 93fr seals are designed primarily for turbomachinery. Secondary seal nbrepdmviton spring and punched parts steel working conditions mediums. John crane type 28at dry gas seals ensure reliability and uptime in mission critical applications. The pros and cons of dry gas seals installation in an existing synthesis gas compressor six years ago, in 2000, the petrobras ammonia and urea plants located in the petrochemical complex of camacari, brazil, were revamped in order to increase the capacities to 1500 metric tonday, in both plants. For the shaft seal to operate reliably over several years continuous operation, not only is elaborate measuring and control technology of the seal gas flow required, but above all, efficient and correctly sized duplex filters. With aura, operators gain access to localized technical expertise from the largest global service network in the industry with over 200 service engineers located worldwide. John crane type 81 mehcnaical seal structure description. Absolute sealing resulting in less pumpage losses, cleaner. Aura reduces leakage rates by up to 15%, lowering the total cost of operation while protecting the environment. It is a proven rotating groove technology that reduces steam leakage, compared to traditional sealing devices.
John crane type 28at dry gas seals ensure reliability and uptime in missioncritical applications. Innovators from the start, john crane designed the. The gas filters and all the measuring technology is integrated into the seal gas panel that ensures the shaft seal. John crane mechanical seal suppliers, all quality john crane. Dry gas sealing solutions for highpressure compressor. These seals are excellent for general duty applications on mixers, agitators, and reactors. John crane offers a comprehensive range of engineered mechanical seals and sealing support systems, mechanical packing, power transmission couplings and centralized lubrication systems under the brand names john crane, sealol, safematic, flexibox, metastream, powerstream, and lemco. John crane provides turbomachinery related technology, supplying products and services for rotating equipment in missioncritical operations. John crane type 28exp dry gas seals ensure reliability and uptime in missioncritical applications. The use of clean and dry nitrogen makes their operating environment free of contamination. The type 83 is a contacting carbon bushing designed to isolate the bearing oil from the dry gas seal cartridge. Easy online ordering and nextday delivery available with 247 expert product support.
A convergence of technologies and experience from the trusted names in gas seal and system manufacture, application, and retrofitting, our heritage durametallic. John crane type 82 barrier seal the john crane type 82 is. Rely on excellence competence in compressor sealing. For a more complete description of dry gas seal principles of operation, see shah 1988. This intensive 1day course is customized and designed for practitioners, engineers, and specialists who worked in epc companies andor operating companies to familiarize them with api 614692 dry gas seal principals and concepts used mainly in the centrifugal gas compressors. If the seal is to be used for an application other than that originally intended or outside the recommended performance limits, john crane must be contacted before its installation and use. John crane type 82 barrier seal the john crane type 82. They allow easy repair, reduce inventory, and permit a simple conversion to unbalanced or wedge seals.
The benefits that wellengineered dry gas seals systems can present are. In our wet gas centrifugal compressor capacitytph, dry gas seal system nitrogen is given as primary, secondary and separation gas. Dry gas seals handbook will help you make informed decisions regarding the application, operation, and maintenance of dry gas seals dry gas seals handbook presents a complete guide to the technology, from the principle of gas seal operation to lessons learned from actual field experience dry gas seals handbook has. Aura the next generation of john crane gas mechanical seals. The john crane type 32 seal is a precisions product. John crane mechanical seals tencarva machinery company. Equivalent to john crane type 32i ss32i seals are dryrunning, outside mounted, single seals for top entering mixers incorporating john crane intelliface technology for quiet operation.
Aura reduces leakage rates by up to 15 percent, lowering the total cost of operation while protecting the environment. Dry gas seals are noncontacting, dryrunning mechanical face seals that consist of a mating. The dual gas barrier seal is designed to be operated in a normally dry running mode with a pressurized clean inert gas nitrogen or air between the two seals. Dry gas lubricated sealing systems retrofitted into centrifugal compressors. Green berets ultralight bug out bag with gear recommendations duration. The type 58u and 58b are multispring din 24960en 12756 seals. Hayes pump distributes the vast selection of john crane mechanical seals.
John crane mechanical seal, john crane mechanical seal suppliers directory find variety john crane mechanical seal suppliers, manufacturers, companies from around the world at mechanical seal,pump mechanical seal,flowserve mechanical seal, seals. John crane type 28st dry gas seals ensure reliability and uptime in missioncritical applications. Water, oil, and chemical mediums with weak corrosion. 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. Take particular caution to see that the lapped sealing faces are not scratched or marred. Mechanical seal,burgmann mechanical seals, johncrane seals, flygt pump seals,pump seal,water pump seal, john crane mechanical seal,grundfos pump,silicon carbide,carbon graphite,ceramic, hefei supseals international trade co. Type 2106 elastomer bellows unitized seal for your nearest john crane facility, please contact one of the locations above. The john crane mechanical seal repair center is located just above our service center, giving us quick and easy access to the people who know mechanical seals best. If so, install an abrasives separator in the flush line. As most engineers know, a successful seal must be designed to give long life, reduce maintenance and provide automatic self adjustment. Download ky type 21, john crane type 21, elastomer bellow shaft seals. Make note of materials used for the old seal parts using u.
Dgs application rangejohn crane dgsoperating range temp. John crane type 81 replacement seal multi spring flex. With the highest success rate of any seal of their type, they are suitable for a wide range of service conditions, including water, refrigeration, oils and chemicals. Meco shaft seals guidelines for designing a mechanical shaft seal designing a mechanical shaft seal to meet the specific needs of your machinery and process parameters requires sharing information. John crane mechanical seals and systems course title.
Dry gas seals 101 presentation free download as powerpoint presentation. The john crane type 82 is a dualsegmented carbon ring bushing seal that features a specially designed joint between the carbon segments to minimize buffer consumption and bearing oil migration. John crane type 109, ky type 109, ptfe wedge mechanical 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. The pros and cons of dry gas seals installation in an. Seal material code found on the front cover foldout. Vulcan type 24, burgmann mg912, john crane type 521, roten type 52 12 14 16 18. This book presents a complete guide to the technology, from the principle of gas seal operation to lessons learned from actual field experience. To assure satisfactory operation, handle seal with care. Inboard of the dry gas seal is an inner labyrinth seal, which separates the process gas from the gas seal. Get reliable, high quality service, exactly when and where you need it. John crane type 32d replacement saisi mechanical seal.
An enhanced rotor design extends scheduled maintenance periods, and the optional bidirectional capability reduces the need for an extensive spares inventory. It is the original gas seal, with a design pedigree stretching back over 30 years. Remove seal to be replaced from shaft andor sleeve. Repair and performance improvement for john crane t28 dry gas. China dry running mechanical seal john crane type 32i. The john crane 5610 series is a modular cartridge seal family that includes interchangeable elastomer bellows, metal bellows, and elastomer oring pusher seal designs. The gland is equipped with a gas barrier inlet and outlet connection. When used in conjunction with the type 28 dryrunning gas seals, it provides a total sealing system that ensures separation of bearing oil. Flowserve has extensive experience in dry gas seal retrofits including many of. China john crane dry gas seal 2800 mechanical seal. Providing detailed application information for a mechanical seal may seem overwhelming at first, but breaking it down into phases simplifies the task. John crane mechanical seals the tpyes of john crane mechanical seals we provide as follow. Type 28exp dry gas seals john crane mechanical seals. John crane dry gas seal 2800 mechanical seal compressor seal.
John crane type 59u, john crane type 58u, ky type 59u, ky. Petroleum, chemical solvents, weak and medium acids, etc. General be sure to read all instructions carefully before installing seal to prevent the potential mismatch of the two sealing halves. Sep 24, 2015 the best practice is to design the seal gas supply system so that the seal gas will always be maintained at a higher than reference gas or flare pressure, to prevent seal face pressure reversals. It is the product for the most challenging and hostile environments, with proven and independently audited performance. John crane include the application and marketing of the.
John crane seals southern design mechanical industrial. Secondary seal nbrepdmvitonteflon spring and metal part ss304ss316 working conditions. We are the leadingedge service provider for dry gas seal retrofits, high end compressor seal troubleshooting, seal support engineering and world class gas conditioning systems. N number of pins d12 pin diameter pin press fit into collar or impeller. Mechanical seal, dry gas seal, john crane 2800 manufacturer supplier in china, offering john crane dry gas seal 2800 mechanical seal compressor seal, pentair, gormanrupp, peerless, zoeller, jacuzzi pool spa water pump seal, mechanical seal ts166, pump seal, pacseal 16, us seal av and so on.
The customer was unhappy with the performance of john crane t28 dry gas seals and was looking for an alternative option for seal inspection and repair. The aura dry gas seal reduces operational and transactional costs using a patented polymeric sealing device. Outboard of the dry gas seal is a barrier seal, which separates the gas seal from the compressor shaft bearings fig. How to prevent seal face pressure reversals turbomachinery. John crane type 21, ky type 21, elastomer bellow shaft seals. Clean seal faces with rubbing alcohol, making sure faces are free of any dirt and grease. John crane s comprehensive range of dry gas mechanical seals are designed to provide you with the correct seal solution suited for your specific application, to ensure optimal reliability, safety and performance. Flexa seal provides a wide range of john crane mechanical seal replacements. Any warranty may be affected by improper handling, installation, or use of this seal. Check that the seal chamber fluid lines are open and free of any obstruction, and ensure that the seal chamber is properly vented and filled with liquid refer to the pump instruction manual. Fits equipment with confined space requirements and. 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. One approach, although not the best, is to isolate the seal chamber by closing the valves on the tubing to and from the seal, bleed off the pressure in the reservoir, add fluid, repressurize the reservoir, and then reopen the valves. John crane type 28at noncontacting gas seal for turbo compressors j.
Type rs2 seal are more specified by ocm than pump manufacturer. We are committed to providing the latest technologies and designs in order to provide our turbo machinery customers within global energy industries with the solution. Mechanical seal, dry gas seal, john crane 2800 manufacturer supplier in china, offering john crane dry gas seal 2800 mechanical seal compressor seal, pentair, gormanrupp, peerless, zoeller, jacuzzi pool spa water pump seal, mechanical seal ts166, pump seal, pac seal 16, us seal av and so on. Stationary grooves minimize wear and maximize wear life. John crane gas sealsgas seals and their application for maximum reliability 2. Oct 03, 2012 ensure the gas is clean and dryexternal gas for extended reliability filter filtered process gas clean dry seal gas is the module most importantprocess gas gas should be filtered fi fi to around 1 micron coalescing filters can be used to dry the gas heaters can be used to provide superheat heat tracing should be used to. Consult the general arrangement drawing and applicable notes included with the actual seal.
Download ky type 109, john crane type 109, ptfe wedge mechanical seals. When used in conjunction with the type 28 dry running gas seals, it provides a total sealing system that ensures separation of bearing oil and. In need of reliable dry gas seals for compressors, turbines, process pumps and driven machinery for global process industries that will increase efficiency in your. 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 has launched two new separation seals that offer a proven solution to the problems of oil penetrating from a compressor bearing into an outboard gas seal, and the ingress of process gas from the outboard stage of the gas seal into the bearing cavity. By continuing to browse this website, you are giving your consent to the use of cookies. John crane type 2 elastomer bellows seals are specified in more original equipment than any other seal from any other manufacturer. It builds on the 28at design and seals medium to high pressures with improved chemical resistance. If the liquid carries dissolved solids, contact your local john crane representative. Place a piece of masking tape over shaft keyway to protect oring from being cut by edges of keyway. John crane type 32i, dry gas seal, mechanical seal manufacturer supplier in china, offering dry running mechanical seal john crane type 32i, mechanical seal for john crane for 58b seal, burgmann seal m3 mechanical seal and so on. Compress seal to proper working height see diagram on page 01 of 03 and table on page 03 of 03. Hayes pump is a factorytrained, stocking distributor for john crane and provides local support and inventory. Installation of john crane type 37 mechanical seal 1.
Johncrane sealsmechanical seal,burgmann mechanical seals. The best practice is to design the seal gas supply system so that the seal gas will always be maintained at a higher than reference gas or flare pressure, to prevent seal face pressure reversals. In addition, they offer other important advantages to the seal user. Dry gas elastomer bellows labyrinth metal bellows noncontacting oring pusher ptfe bellows ptfe wedge slurry split vessel and agitator gas seal systems wet seal systems equipment alignment api general process industries turbomachinery filtration systems packing industries oil and gas power generation chemical pharmaceutical mining and minerals. Mechanical seal,burgmann mechanical seals, johncrane seals, flygt pump seals,pump seal,water pump seal,john crane mechanical seal,grundfos pump,silicon carbide,carbon graphite,ceramic, hefei supseals international trade co. The gas filters and all the measuring technology is integrated into the seal gas panel that ensures the shaft seal is always operated under constant pressure and flow conditions. John crane gas sealsgas seals and their application for maximum reliability. Type 28at dry gas seals john crane mechanical seals. Secondary seal teflon spring and metal part ss304ss316 working conditions. Equivalent to john crane type 32d single oring mixer seal for top entry vessels outside mounted dual balanced face face material of special dry running carbon reverse pressure design high pressure and vacuum tbars for rugged drive and exact axial guidance standard sizes from 25 to 125 mm shaft diameter mechanical wear indication.
They are versatile designs using components common to other oring and wedge type seals. Complies with international standard iso 3069, 5257 1975. Type 28ld seals can be used in single, double or tandem cartridge arrangements. We provide 20 for you about john crane mechanical seals catalog page 1. With aura, operators gain access to localized technical expertise from the largest global service network in the industry with over 200 service. For technical info, dimensions and materials, please navigate the buttons below to view our catalog of john crane mechanical seal replacements. This website uses cookies to ensure users have the best online experience. The seal on the bearing side is intended as a safety seal.
Aura reduces operational and transactional costs using a patented polymeric sealing device. Type 2 seal fits with limited seal chamber depth and fits in minimum space. John crane has a strong legacy that dates back to the creation of the crane packing company in 1917. Contact john crane for information as to exclusive product. The pumped liquid may be carrying dirt, rust or suspended abrasive particles. Flexaseal provides a wide range of john crane mechanical seal replacements. Type 28xp dry gas seals john crane mechanical seals. The information found in dry gas seals handbook will help you make informed decisions regarding the application, operation, and maintenance of dry gas seals.
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