flowserve mechanical seal parts manufacturer

Siewert Equipment is the exclusive provider of Flowserve mechanical seals for Upstate, NY. Flowserve seals are the industry’s top choice for the most challenging environments. We offer a complete line of seals, including cartridge seals, dry-running seals, metal bellows, elastomeric bellows, mixer seals, split seals, and bearing protection devices.

The Flowserve company was registered in 1997, having already 230 years of experience in the field of fluid flow control, and is today a world-renowned corporation (represented in more than 50 countries around the world). Sealing technologies are an effective direction of the brand. Creating reliable products, Flowserve supplies mechanical seals and sealing systems for a variety of equipment – pumps, compressors, agitators, steam turbines, etc.

FLOWSERVE® CORP® (See DURCO®, IDP® and WORTHINGTON®) Search by the OEM Part Number using the SEARCH function at the top of the page or use search by specification.

OEM names, brands, model or part numbers are for identification purposes only. Our components are designed to provide performance and service life equal to or better than the OE part when properly installed and properly applied. Springer Parts® carry a warranty equal to the OE component. FLOWSERVE® CORP® (See DURCO®, IDP® and WORTHINGTON®) is a registered trademarks of its respective company. Springer Pumps, LLC is not a representative of, nor affiliated with FLOWSERVE® CORP® (See DURCO®, IDP® and WORTHINGTON®).

Micro Sealsis one of the leading specialists in the design and manufacture of Pump Mechanical seals, Seal support systems ,Sealing Components,and Rotary Unions/Rotary Joints for Pumps, Agitator, Reactors, Blowers, mixers, steam turbines and other rotary-motion equipment. For over 15 years we’ve been committed to designing and manufacturing sealing products and accessories of the highest quality. We leads the way in high-efficiency solutions using the latest technologies for maximum sealing performance.​​​​

The use of the word “seal” is a misnomer; as a mechanical seal is a restrictive flow path,that is either an angular or radial gap.The flow through this gap is generally so low it goes unnoticed if a liquid or inconsequential if a gas.

A mechanical seal works byretaining a liquid or gas inside a rotating piece of equipment. Mechanical seals can be designed to prevent contamination of the process by the environment and prevention of leakage of the process into environment.

The basic components of a mechanical seal are a Rotating Part and a Stationary Part. The primary seal of a mechanical seal consists of a rotating face and a stationary face. The faces are kept lubricated by maintaining a thin film of fluid between each face. There is a very small gap between these 2 components which creates a restrictive flow path.

There are other components namely o-rings or gaskets which are used as secondary seals and hardware which is used to support the seal faces and to attach them to the rotating part (i.e shaft) and stationary part (i.e cover plate).

The primary seal of a mechanical seal is made up of 2 seal faces where these two parts meet is where the seal gap is located. The mating surface of the seal face is machined to a very tight tolerance.

Double Seal (Barrier) => consists of two primary seals in various arrangements. There is a barrier fluid between the two primary seals which is at a higher pressure than the process. There is always some leakage of the barrier fluid in process & out to atmosphere. As long as barrier pressure is maintained there is no leakage of process to atmosphere or contamination of process by environment.

Double Seal (Barrier) – Wet => is a double seal where the barrier is a liquid. It is generally the most robust seal. It has a good pressure, speed and temperature capabilities.

Gas Contacting Seal– the seal faces are in contact, the soft face wear acts as a lubricant. Low pressure, speed and temperature capabilities and possibilities of wear getting into the process.

Gas Non Contacting Seal – the seal faces are NOT in contact. They are kept apart by a flow of gas between the faces. Good temperature, speed and pressure capabilities. If operated correctly their is no wear but care must be taken in order to minimise shaft run out.

Cartridge seal =>is where the rotating and the stationary hardware are pre-assembled before mounting onto the pump/mixer. Cartridge seals are much easier to fit & maintain compared to the component seal.

A lip seal is a specific type of seal, it is a radial seal, where the part that seals against the rotating surface is a narrow cross section, soft material i.e the lip and it is made from an elastomer or non-elastomer material with a backup spring. Most commonly used to seal bearings in Mixers/Agitators. A lip seal rotates too quickly to be used on pumps.

Abarrier fluid is any gas or liquid which is used to pressurise a double mechanical seal. It must be compatible with the process, generally non-toxic and a good lubricant.

Please consult the pump manufacturer/distributor for guidance on these calculations for mixer seals, the barrier pressure is set at a certain value above the maximum vessel pressure.

Packing is a material that is stuffed between a rotating shaft and a stationary part gland to maintain pressure. Packing is a low cost alternative to mechanical seals.

We supply mechanical seals into the pharmaceutical, bio-technology, chemical processing, mineral and ore processing, semi-conductor and general industries.

Depending on your particular application, if you are looking mechanical seals to suit a pump application; Mechanical Seal for Pumps, or if you are trying to source mechanical seals for an agitator or tank mixer; Mechanical Seal for Agitator, or perhaps you have a hygienic application in mind, take a look at our range of Mechanical seal for Hygienic & Aseptic applications.

Our Mechanical Seal specialists can advise you on the appropriate selection of a seal support system which will deliver years of reliable service and operating cost savings in the longer term.

If you have any query around how to install mechanical seals or have some concerns around seal failures, why not contact one of our seal specialists below to discuss it in more detail and find out how we can help solve your issues and get your process running reliably again.

Amechanical seal is the most common type of sealing component used on pumps in modern industry. Replacing out packing over the last 50 or so years, they have served to drastically reduce industry emissions, energy usage and downtime globally.

A mechanical seal for pumps can be subdivided into variable options depending on the type/specific application/design components/location and mechanical seal characteristics;

The major advantage of a cartridge seal over a component seal is ease of installation. Incorrect installation is a major cause of seal failure, cartridge seals remove many of the problems associated with seal change-out in the field.

Slurry Seal – mechanical seal engineered to cope with a heavy slurry process – i.e. abrasive, corrosive and viscous. Can handle up to 60% slurrys by weight.

A Pusher Seal is where there is a spring element in the seal (used to maintain contact of the seal faces). Spring types include Belleville, multi-spring, etc. This type of seal requires a dynamic secondary seal.

A gas seal is a double seal where the barrier fluid is a gas – in pumps, this is usually a gas lift-off seal. In a gas lift-off seal the faces are not in contact while the machine is running. They are separated by a thin gas film (flow). If operated correctly they have very low wear.

The above seal types can be combined (though it is not always best to do so i.e. a component gas lift off seal would require very close collaboration between the machine and seal manufacturers to achieve a reliable installation).

There are many other options for mechanical seals, if you have any technical queries on other combinations not listed above,  just contact one of our Mechanical Seal Specialists who will gladly discuss your application.

A mechanical seal flush is a piping set-up on a pump and seal assembly where a flow is induced in the seal chamber in order to improve MTBF of the mechanical seal. It is used to improve cooling, heating, remove solids and increase pressure (in combination with a neck or throat bush).

A mechanical seal quench is a piping set-up where a fluid is piped over the atmospheric side of a seal. It is generally used to prevent precipitation or crystallisation of a product or in some cases to aid cooling.

High Slurry process using Flowserve’s UNCD ® – Ultrananocrystalline diamond  seal face technology. Flowserve UNCD ® coatings offer material properties and performance advancement over all other seal face materials.

Slurry seal design expertise applications which previously required double mechanical seals can now be reliably run by using single mechanical seals, saving costs of barrier fluid systems, the costs of the barrier fluid itself & the associated running costs. This reduces energy usage & carbon footprint.

If you have a technical query around the installation of mechanical seals for pumps or have some concerns around seal failures, why not contact one of our seal specialists below to discuss it in more detail and find out how we can help solve your issues and get your process running again.

John Crane Mechanical Seals, part of the Smiths Group of the United Kingdom, is headquartered in Chicago, Illinois. John Crane is the largest and one of the oldest seal companies being incorporated as Crane Packing Company on March 9, 1917 in Chicago, Illinois.

In the mid 1930’s Crane Packing Company licensed a mechanical seal design from Chicago Rotary Seal. Through several Crane patents, this design evolved into the full convolution rubber bellows seal.  By 1938, Crane Packing Ltd in England was making their own mechanical seals for pumps in oil refineries.

In the late 1930’s, probably about 1937, mechanical seals began to replace packing on automobile water pumps. At first only the more expensive automobiles used mechanical seals in the water pump. The famous Jeep of WWII used a Crane rubber bellows seal in the water pump.  After WWII, all automobile water pumps used mechanical seals.

During the mid 1940s, mechanical seals began to replace gland packing.   Crane Packing Company developed its Type 1 and Type 2 rubber bellows mechanical seals in 1946.  Because special lapping machines are required to manufacture mechanical seals,  Crane Packing Company founded the Lapmaster Division.

In 1944, an amazing new material called Teflon (TM) was developed by Dupont. This material was relatively inert to many chemicals and held great promise for the sealing industry.   To take advantage of the unique properties of Teflon, Crane developed the Type 9 (USA) and Type 109 (Europe) seals.  In 1956, an all-PTFE acid-resistant seal, the Type 20, was launched.

During the late 1940’s and early 1950’s a number of the core product lines of Crane Packing Company were developed. In addition to the Type 1 and Type 2 rubber bellows seals and the Type 9 and 109 Teflon wedge seals, the well-known Type 8 family of seals was developed in this time frame.   The Type 8 seal is an unbalanced seal for low pressures, the Type 8-B a high pressure seal for pipeline services and the Type 8B-1 is a very adaptable version of the Type 8-B for typical refinery and chemical plant services.  Decades later, these seals (with modern materials and improvements, of course) are still among the most popular seals in the world.

In 1979, Crane Packing Company developed the Type 28 non-contacting, dry running gas seal to replace conventional oil lubricated seals then used on compressors. A patent was awarded for this unique mechanical seal which used spiral grooves to provide hydrodynamic lift and separate the sealing faces.

Since 1959, Pioneer Equipment has served the Southwest United States with Flowserve mechanical seal solutions for pumps used in a wide range of commercial and industrial applications.

Based in Phoenix AZ, Pioneer Equipment, Inc. has stocking branch offices in three states and four metropolitan areas. For nearly sixty years, Pioneer Equipment has been a distributor and servicer of air compressors, pumping systems, and pumping system accessories. We carry a full range of Flowserve mechanical seal products and accessories at our branches in Phoenix and Tucson.

We provide expert Mechanical Seal Repair of all major brands, including John Crane®, Flowserve®, Burgmann®, and more. With locations in Gonzales, LA, and Williston, VT, we are the reliable, convenient single source repair for all styles of mechanical seals.

Our comprehensive library of manufactured design solutions addresses applications in the field and pump-specific challenges providing upgrades and replacement seals manufactured to perform better and last longer.

Flexaseal’s experienced maintenance and repair technicians have worked with mechanical seals from the world"s largest pump and seal manufacturers, including John Crane® and Flowserve®. Below is just a sampling of the many manufacturers and styles that we have repaired. If your seal isn’t listed, just click “Request A Quote” to send us a message.

Each repair that comes to our repair departments in Louisiana or Vermont - whether it is a third-party design or a Flexaseal model - goes through a detailed, 5-step process to ensure customer satisfaction.

Flexaseal offers repair kits for on-site seal repair. These kits are specific to your Flexaseal cartridge and are a great way to have parts on hand for an emergency situation. All items in the kit are packaged and labeled to ensure efficient change-out.

Every mixer, agitator, and reactor model is distinctive and engineered for specific applications. When repairing a mixer seal, Flexaseal evaluates the conditions in which the seal operates. This evaluation ensures we are repairing your seal to your parameters.

Sometimes a failed seal is no longer a candidate for repair. Flexaseal provides straightforward solutions from our comprehensive seal lines or upgraded options designed for your unique operating environment.

The Flexaseal Gulf South location is a fully functional, self-sufficient mechanical seal repair and service facility for  mechanical seals. Our Southern U.S. shop - located between Baton Rouge and New Orleans in Gonzales, LA - is  a  brand new 5,000 square foot, state-of-the-art facility ready for your mechanical seal repair and service needs.

Machining Capabilities – Our Gulf Coast technicians have extensive knowledge and machining experience. These skills enable the team to quickly and efficiently process seal repairs, getting your equipment back into operation with minimal interruption.

Stocking Location – The Gonzales store front has a range of Flexaseal sealing products for immediate off-the-shelf delivery. We are also an assembly and stocking location forseal support systems including barrier fluid reservoirs.

JCI Industries, Inc. is the exclusive provider of Flowserve Fluid Sealing Devices in Kansas, Western Missouri, and Nebraska. We offer a complete line of seals including cartridge seals, dry-running seals, metal bellows, elastomeric bellows, split seals and gas barrier seals for zero emissions.We also carry bearing protection devices and seal chamber auxiliary equipment.

We stock complete cartridge and component seals for all ANSI and API pumps, and maintain over $250,000 of seal related inventory. JCI’s seals specialist has 60+ years of experience, including seal application design & recommendation, seal failure analysis, and complete seal repair and installation.

Flowserve heritage product lines include BW/IP, Pacific Wietz, Durametallic, Five Star, and Pac-Seal. BW/IP was engineered API type seal, Pacific Wietz the gas seals came from, Durametallic and Five Star were the ANSI market seals and the Pac-Seal are for the OEM market.

In the past, external clean, cool fluid was used to lubricate seal faces or dual seals operating on clean barrier fluid. Now, the solution  is to use Diamond Coated Silicon Carbide Faced Seal (UNCD) and let the process fluid itself lubricate the seal even with challenging applications.

Flowserve Mechanical Seal Piping Plan Flip Book – reference book that provides a concise summary of the most essential piping plans used successfully in today’s process plants. Each plan shows all the standard and optional auxiliary components referenced in API Standard 682

See improved performance of replacing John Crane Type 21 ™ with a Pac-Seal 21 utilizing a crimped-head rotary unit removing metal contact from the seal ring and preventing foreign material from collecting under the bellows.

Standard cartridge mechanical seals provide exceptional reliability and standardization in a wide variety of industrial applications and service conditions. ISC2 seals are designed to fit hundreds of pump and rotating equipment models from global manufacturers.

Application Guide: mechanical seals in product pipeline pumps, covering the transmission of crude oil and refined products such as fuel oils, gasolines, crude oils, and natural gas liquids (NGL), propane and ethane.