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We specialize in hard-to-find seals and demanding applications. Our extensive network of resources enables us to locate the right manufacturer and part, every time.

At All Seals we know down time is not an option. We specialize in hard-to-find seals and demanding applications. With over 40 years of experience in supplying quality replacement mechanical seals, we can help you identify the seal you need and solve your sealing problem. Our technical staff is available to help you – just give us a call. Our comprehensive stock of components ensures that we can build almost any seal combination for same day shipment. Whether you need a new seal or you have a seal to be repaired, we welcome the opportunity to help you with your rotary sealing needs.

We carry a comprehensive inventory of mechanical seal components, which allows us to build the right seal for your application. We’ll even design custom seals for one-of-a-kind applications.

Need hard faces or specialty elastomers? Give us a call. We can quickly build a repair kit to withstand any medium being pumped. You’ll find All Seals’ pump repair kits an invaluable part of your operation.

Modern pumps, compressors, mixers, agitators and other rotary shaft equipment are assembled using either compression pump packing or mechanical seals to minimize emissions and fluid.

Compression pump packing controls leakage whereas mechanical seals will tend to stop any visible leakage all together, keeping work environment clean and hazard free.

Compared to compression packing the initial cost of a mechanical seal is high, however overtime, the associated cost accrued by using compression packing, for example power consumption, maintenance and downtime, could be far in excess of the initial cost of a mechanical seal, which works unattended for a long time.

ISO 9001:2015 certified. Custom manufacturer of abrasion, acid, alcohol, alkali, oxidation, ozone, radiation, sunlight and water resistant rubber and plastic O-ring seals. Made from EPDM, butyl, fluoroelastomer, fluorosilicone, natural rubber, neoprene, nitrile, NBR, HNBR, SBR, silicone, high tear strength silicone, TPR, TPU, TPE, thermoplastics and polyurethane. Capabilities include injection molding, die cutting and prototyping. Assembly and PTFE coating additional services are also provided. Serves the aerospace, automotive, commercial, construction, dental, electrical, food handling, laboratory, marine, mining, municipal, oil and gas, recreational, retail, transportation and wastewater industries. Meets ASTM and SAE standards. Six Sigma certified. JIT delivery. Overseas sourcing options also offered.

While braided packing can be a solution for many services, its upkeep requirements often force operators and maintenance personnel to consider the option of mechanical seals. When considering the broad range of mechanical seal styles and products to replace braided packing, the most readily implemented, effective, and reliable is a split cartridge mechanical seal with a Pack-Ryt® ORM (O-ring mount design) bearing/bushing system.

The Flexaseal Style 85 fully split cartridge mechanical seal coupled with an API 682 Plan 32 external flush and a Pack-Ryt® ORM is an excellent option in a wide variety of services such as the common light slurry applications seen in paper pulp equipment.

A split Pack-Ryt® ORM and Style 85 seal allow for a rapid conversion in the field as well as simple and efficient service after installation. The Flexaseal Style 85 split cartridge mechanical seal is a true two-piece installation, with minimal handling of parts and a quick install. The mechanic simply removes the existing packing and packing gland, reconditions the seal chamber sealing surfaces, and then mounts the split mechanical seal system without having to disassemble the equipment. Large equipment (e.g. split case pumps) that may have been a timely and costly endeavor to disassemble can now service the mechanical seal without handling the casing or rotating elements.

The Pack-Ryt® ORM not only dramatically decreases flush water consumption with its tight radial clearance over the shaft, but it also provides extra radial shaft support in a non-galling and self-lubricating composite material for added longevity. A Pack-Ryt® ORM reduces flush water entering the process stream to a small fraction of the original flow rate as compared to mechanical packing. Eliminating radial shaft movement greatly increases seal life and improves performance and because mechanical seals limit the rotating contact area to the seal faces only, the large amounts of shaft or sleeve wear from packing contact are eliminated.

The Style 85 split cartridge mechanical seal is designed to be installed outside the seal chamber and away from any packing-worn sleeve surfaces, meaning that pump sleeve replacement (and equipment teardown) is only necessary in the most severe cases. Flexaseal can also provide the appropriate split adapter plate to house the Pack-Ryt® ORM and permit the mounting of our standard seal to your specific equipment.

With paper pulp services that can plug flush lines or impact normal seal operation, the use of an API 682 Plan 32 will act to isolate the seal and allow it to run on clean, cool liquid for maximum seal longevity. Any existing water supply infrastructure used to cool and lubricate braided packing may also be used for the Plan 32 implementation, but users must confirm that the water supply pressure is at least 15 psi greater than the expected seal chamber pressure.

The split sealing system described here has provided long-term cost savings and improved mean time between failure for many end-users. By working with Flexaseal’s engineering team to identify the right setup, customers can be certain they’ll realize major savings in energy & water consumption, reduce maintenance requirements, and increase equipment productivity.

The SEPCO RBD is a stationary design multiple spring double seal used where leakage of hazardous or costly products cannot be tolerated and where positive ...

Dual seal Available for standard (CMS-ASDN) and big bore (CMS-ABDN) seal chambers Balanced Cartridge Double pressure balanced Independent of direction of rotation Integrated pumping device

We manufacture face seals for hydraulic and pneumatic applications in the following designs:- rod seals and piston seals - single-acting - double-acting - rotatory ...

Flexaseal offers a wide variety of single cartridge mechanical seals, each designed as a reliable solution for the toughest applications. Our single cartridge seals are easy to install and minimize the number of moving parts that can lead to equipment failure. Specially designed single cartridge seals are also available for highly corrosive or high-temperature environments. Cost-effective upgrades are available when circulation, vent, & drain glands are required.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

The Style 57 design serves to keep the sealing faces in contact and positively transmits the drive evenly 360° around the full circumference of the rotary face. This is accomplished by the special spring design, which provides an interference fit. The compression spring is wound either right or left hand depending on shaft rotation.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Stationary design accommodates higher shaft-to-stuffing box misalignment. The stationary bellows design only flexes once during installation unlike a rotating design which flexes on every revolution. This reduces face movement and increases seal life.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

These two single cartridge seals are engineered for the most demanding corrosive applications. By minimizing the number of troublesome O-rings and eliminating any media exposure to the sleeves and glands, we have produced two very cost effective solutions to industries’ toughest applications.

In highly corrosive conditions that require expensive upgrades to higher alloy metals like duplex stainless steel, Alloy 20, Hastelloy® C276, the PH seals are an ideal economical solution. Only the wetted parts need to be constructed of these alloys while the larger metal parts such as the gland and sleeve can be 316 stainless steel since they are located out of the product

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

API compliant with piloted gland to positively center seal assembly and metal-to-metal confined gland gasket which prevents blow out or extrusion of the gland packing

Multi-point injection feature available which ensures maximum uniformity of cooling around the entire circumference of the sealing faces, thus eliminating face distortion due to uneven cooling. Ideal for boiler feed and light flashing hydrocarbon services.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Conventional pump stuffing boxes were originally designed to accommodate packing materials. Over the years mechanical seals edged out packing as a preferred sealing method, however stuffing boxes essentially remained the same. This situation posed complications for the effective operation of mechanical seals including installation issues, potential damage from abrasive product, and poor dispersion of seal-generated heat.

The ANSI Standard ASME B73.1 Specifications for Horizontal End Suction Centrifugal Pumps for Chemical Process includes specifications to improve the reliability and safety of the B73.1 pump design. One major specification focuses on cylindrical (big bore) and self-venting (tapered bore) seal chambers. Both of these seal chamber designs address the issues that plagued conventional pump chambers by providing additional radial clearance for mechanical seal operation and for increased liquid circulation around the seal, enabling the seal to run cooler and longer.

Only two (2) static elastomers – eliminate seal failures caused by dynamic O-ring “hang up” and offers cost savings when upgrading to Perfluorelastomers

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time.

The Chesterton 150 & 250 seals are a value leader in its class. It is the ideal mechanical seal to reduce high maintenance costs and prevent wasteful leakage, shaft fretting damage, and inefficient downtime.

The 150L/250L features a single screw lock ring that uniformly claps the seal to the shaft and simplifies removal in fluids that tend to set or clog around the seal.

Flexaseal has grown from a small manufacturer to an industry leader at the forefront of sealing solution technical advances, including the development of the world’s first patented two-piece split cartridge mechanical seal. Today, our distributors cover over 30 countries and our operations include locations in Vermont, Louisiana, Texas, and Brazil. For four decades, we’ve remained committed to our mission to produce the highest quality products and provide the best customer service in the world.

Pillar marine mechanical seal is a special desinged mechanical seal for marine pump .This seal is designed to have dimensions meeting the corresponding requirements of standards establi shed by Japanese Marine Equipment Association.

pillar seal is widely used for big sea ship pump, In ordor to prevent corrosion by sea water, it is furnished with mating face of plasma flame fusible ceramics.

As a leading professional mechanical seal supplier, lepu seal manufacture this pillar marine pump mechanical seal US for many shipping companies, and are very professional and have enough experience for this marine pump seal.

Guangzhou Lepu machinery CO., LTD becomes one of the leading mechanical seal supplier in south of china, we focus in designing and manufacturing mechanical seal for many kinds of famous brand pumps, our mechanical seal cover many kinds of industry like food, petrol chemical, paper making, sea ship, and so on.

A dry gas seal is a revolutionary way of sealing machines and protecting them from dust, moisture and other contaminants. A dry gas seal is a sealing device that uses pressurized gas to keep two surfaces from touching. The most common type of dry gas seal is the O-ring, which is used in many applications, including mechanical seals, piston rings, and gaskets. Dry gas seals are also used in many other industries, such as the food and beverage industry, where they are used to seal containers and prevent contamination. This type of seal not only helps to keep the machine running with maximum efficiency but also significantly reduce downtime, making it cost-effective in the long run. In this article, we"ll explore what a dry gas seal is, how it works and why you should consider using it for your machinery. By understanding the benefits of a dry gas seal and its uses, you can make an informed decision about the best sealing system for your needs. How does a dry gas seal work?Dry gas seals work by using a series of labyrinths to separate the high pressure seal gas from the atmosphere. The labyrinths are formed by a series of grooves and ridges on the surface of the seal ring. The seal ring is rotated at high speed, causing the gas to flow through the labyrinths. The gas is then forced through an aperture in the center of the seal ring, where it escapes into the atmosphere. What is a dry gas seal used for?Dry gas seals are used on rotating equipment to help minimize the leakage of high pressure gases from the inside of the machinery. This helps to reduce maintenance costs and improve safety. Dry gas seals are commonly used in applications such as pumps, compressors, turbines, and blowers. Advantages of a dry gas sealThere are many advantages of a dry gas mechanical seal. One advantage is that they are much simpler in design than other types of seals, making them more reliable and easier to maintain. Additionally, dry gas seals do not require the use of any lubricating fluids, which can leak or evaporate over time. This makes them more environmentally friendly and cost-effective in the long run. Finally, dry gas seals have a much longer lifespan than other types of seals, meaning that they need to be replaced less often.Disadvantages of a dry gas sealThere are several disadvantages of dry gas seals, including: - they can be expensive to purchase and install- they require careful maintenance and regular inspection- they can be susceptible to wear and tear- they can leak if not maintained properlyHow to choose the right dry gas seal for your applicationThere are a few key factors to consider when choosing the right dry gas mechanical seal for your application. The most important factor is the type of fluid being sealed. Gas seals are designed to seal either liquids or gases, but not both. Make sure to choose a gas seal that is compatible with the fluid you are sealing.Another important factor to consider is the pressure of the fluid being sealed. Gas seals are rated for different maximum pressures, so make sure to choose one that can handle the pressure of your application.Finally, take into account the size and shape of the sealing surfaces. Gas seals come in a variety of sizes and shapes to fit different applications, so make sure to choose one that will fit your needs.ConclusionDry gas seals are an extremely important component for many industrial operations, and their ability to prevent leaks has made them invaluable in a variety of applications. Understanding the basics of how dry gas mechanical seal work and how they can be used effectively is helpful when considering the various options available for any specific application. With the right choice, dry gas seals can provide reliable, leak-free performance which will save time, money and resources while ensuring safety and reliability. Lepu dry gas seal manufacturer provides best quality flowserve dry gas seal and dry gas seal. Welcome to contact us!

The scope of our mechanical seal product range far exceeds any other seal manufacturer. From small elastomer bellows seals used in millions of domestic water pumps to double mechanical seals that ensure maximum sealing safety and large, highly customized dry-running gas seals for mission critical high speed turbo compressors, John Crane has the right product for any application.

Our world-class rotating equipment technologies, paired with an unmatched breadth of applied engineering expertise, meet virtually all international standards including API 682 and help plants reduce maintenance costs, slash down time and improve reliability. When it comes to keeping your rotational equipment running 24/7, John Crane’s comprehensive range of mechanical seals and systems has you covered.

A range of seals for mission-critical applications, designed to solve the application-specific challenges of each industry. From API 682 compliance for the oil and gas industries, using gas seal technology on our innovative pump gas seals to eliminate fugitive emissions, dealing with slurry in the mining and minerals processing industries, to the difficulties associated with maintenance on large pumps and rotating equipment — we have a solution.

Dry-running, non-contacting gas seals have been the industry standard since the early 1980s for turbomachinery. John Crane gas seals, separation seals and support, monitoring, control and conditioning systems — the heart of any reliable sealing solution — are constantly evolving to meet the needs of customers. The product portfolio is supported by unrivaled global service capability providing repair, retrofit, gas seal storage and reliability expertise, delivering total solutions throughout the product lifecycle.

In industries like chemical, pharmaceutical, pulp and paper, and food and beverage, safeguarding and compliance with industry standards, avoiding contamination and efficiency are always top priorities. Our range of vessel and agitator seals optimize equipment performance, maintain product purity and conform to industry regulations, no matter where you are.

Our range of mechanical seals, packing and bearing isolators combines advanced, thoroughly proven technologies with extensive industry expertise to create a range of products characterized by innovative design concepts and outstanding manufacturing quality. Tried, tested and effective solutions for virtually any application that deliver robust performance, reduced installation times and lower maintenance costs.

Create the optimum operating environment that will ensure outstanding seal performance and reliability. Our comprehensive range of engineered pressure reservoirs, gas seal control panels, heat exchangers and abrasive separators can be combined to produce the perfect seal support system for any application.

Designed to overcome rigorous challenges, our comprehensive suite of seal face technologies combat limited seal face lubrication that adversely affects reliability, cost and durability. Our engineers designed these face treatments to extend rotating equipment life through advanced micro machined patterns and features improving seal face lubrication that optimizes equipment performance. We deliver the right face technology for the right application.

The 170 Slurry Seal is engineered to Operate in severe slurry environments, eliminating costly external seal flushes. Plant efficiency improvements are achieved with the 170 seal by reducing product dilution andread more...