Advanced Sealing Technology

What Advanced Sealing Technology does

Advanced Sealing Technology (AST) is a privately held US manufacturer of mechanical seals for rotating equipment, headquartered at 68 Stilson Road, Richmond, Rhode Island. Founded in the mid-1990s, the company has designed and produced cartridge and component mechanical seals in the USA for more than three decades, selling primarily into process-pump maintenance, repair, and operations (MRO) applications.

AST's product line centers on the AST70 single cartridge seal and AST80 dual cartridge seal families, complemented by the AST50 external component seal, AST60/66 internal component seals, AST7023 Plan 23 seal, and AST80M mixer-duty dual seal. The portfolio extends to FFKM perfluoroelastomer O-rings (AST380 rated to 600°F, AST385 rated to 570°F with broad chemical resistance), Plan 52/53 reservoirs (seal pots), Plan 21/23 heat exchangers (seal coolers), and genuine OEM rebuild kits. A distinguishing technical feature is that all AST seals are field-rebuildable using standard tools, supported by a consistent design across sizes to shorten maintenance training. The 2021 strategic alliance with a leading US FFKM manufacturer gives AST private-label access to high-performance perfluoroelastomer compounds.

AST sells hardware on a quote-based, pay-as-you-go model through a blended go-to-market: direct corporate sales (toll-free 877.AST.SEAL, [email protected]) plus a distributor network spanning the United States, Canada, Mexico, and Europe. End markets are segmented across eleven industrial verticals — automotive, biofuels and ethanol, chemical processing, food and beverage, marine systems, metal processing, mining and minerals, pharmaceuticals, power generation, pulp and paper, and water and wastewater. Same-day shipment is offered on more than 94% of inventory, including hard-to-find ANSI-style parts, positioning AST primarily on responsiveness, in-house repairability, and aftermarket rebuild economics rather than unit price.

Name

Advanced Sealing Technology

Legal name

Advanced Sealing Technology

Website

https://astseals.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

Advanced Sealing Technology is a US manufacturer of mechanical seals (cartridge and component) and FFKM O-rings for rotating equipment, serving industrial MRO customers across automotive, chemical, pharma, marine, mining, power, and water/wastewater verticals via direct sales and distributors in North America and Europe.

Ownership category

akta.pro rank

Product category

Mechanical Seals / Industrial Fluid Sealing

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991), Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH)

akta.pro secondary industry

Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers) (IMAHAGAI)

Keywords

• Mechanical seals
• Rotating equipment seals
• Cartridge seals
• Process pump seals
• Industrial fluid sealing

Headquarters

HQ city

Richmond

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Mechanical Seal Products: Sale of cartridge and component mechanical seals for process pumps including AST50, AST60, AST70, AST7023, AST80, and AST80M models. Products are sold off-the-shelf with immediate delivery available.
2. Accessories and Components: Sale of FFKM O-rings, reservoirs (seal pots) for Plan 52 and Plan 53 arrangements, and heat exchangers (seal coolers) for Plan 21 and Plan 23 applications.
3. Rebuild Kits: Genuine AST OEM seal rebuild kits for quick, simple, and inexpensive equipment repairs at customer facilities. Enables in-house repair reducing shipping and inventory costs.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Advanced Sealing Technology manufactures a complete line of mechanical seals for rotating equipment, including external component seals (AST50), internal component seals (AST60/66), single cartridge seals (AST70, AST7023), dual cartridge seals (AST80, AST80M), and a Viking Pump-specific cartridge (AST63). The company also supplies FFKM perfluoroelastomer O-rings (AST380, AST385), seal reservoirs, heat exchangers, and OEM rebuild kits for on-site customer repairs of process pumps used in harsh industrial applications.

Product overview

Advanced Sealing Technology manufactures a complete line of cartridge and component mechanical seals for rotating equipment, including single outside seals (AST50), single inside seals (AST60/66), single cartridge seals (AST70, AST7023), and dual cartridge seals (AST80, AST80M). The product portfolio also includes AST63 for Viking Pumps, FFKM O-Rings (AST380, AST385), reservoirs, heat exchangers, and rebuild kits. The AST70 single cartridge seal serves as the standard for harsh applications, while the AST80 dual cartridge seal incorporates liquid shear pumping for heat removal. All AST seals are field-rebuildable using genuine OEM rebuild kits, allowing users to control schedule and budget for repairs.

Differentiator

Problem solved

Functional benefit

Products and services

• AST50 Multi-Spring Component Outside Seal Multi-spring component outside seal with no metal parts in contact with the sealed liquid, designed for extremely corrosive environments. Fits all ANSI pumps and is ideal for non-metallic pumps such as Fybroc and Flowserve GRP. Targets process pump applications in chemical processing and other harsh service environments.
• AST60/66 Multi-Spring Component Inside Seal Hydraulically balanced inside seal with a narrow face design that delivers cool-running operation; the floating rotary seal ring eliminates seal face distortion inherent to shrink-fit designs. Used in process pumps running across AST's served verticals.
• AST63 Single Cartridge Seal for Viking Pumps Single cartridge mechanical seal engineered specifically to fit most Viking Pumps. Targeted at operators of Viking-brand positive displacement pumps across process industries.
• AST70 Single Cartridge Seal Unitized, cartridge-mounted, balanced, multiple-spring seal that requires no measuring during installation. Positioned as the basic mechanical seal of choice for harsh applications in ANSI pumps, enlarged-bore seal chambers, vertical pumps, and split case pumps.
• AST7023 Plan 23 Single Cartridge Seal Off-the-shelf single cartridge seal for hot liquid sealing per ANSI Plan 7323 (API Plan 23), with a built-in pumping ring that fits enlarged-bore seal chambers on popular ANSI pumps. Targeted at hot hydrocarbon and high-temperature process applications.
• AST80 Dual Cartridge Seal Dual cartridge seal that packages two seals in one compact unitized cartridge; incorporates liquid shear pumping to remove heat from seal faces and can be operated with a pressurized barrier or non-pressurized buffer fluid. Used as a double seal, tandem seal, or spare seal arrangement.
• AST80M Dual Cartridge Seal (Mixer Duty) Rugged dual seal engineered for mixers, agitators, double-ended pumps, and other rotating equipment in demanding service. Large internal clearances tolerate shaft runout and end-play. Targeted at chemical, pharmaceutical, and other process industries running harsh mixing duties.
• AST380 FFKM O-Rings High-temperature perfluoroelastomer O-rings with continuous temperature capability to 600°F (315°C), broad chemical resistance, and low compression set characteristics. Used as sealing elements in demanding mechanical seal and process equipment applications.
• AST385 FFKM O-Rings General-purpose perfluoroelastomer O-rings with very broad chemical resistance including hot amines, steam, and hot water; continuous temperature capability up to 570°F (299°C). Sourced through AST's strategic private-label FFKM partnership.
• Seal Reservoirs (Seal Pots) Seal reservoirs (seal pots) for use with dual seals in API Plan 52 and Plan 53 arrangements. Stainless steel construction with cooling coils as standard, certified to 550 PSIG. Supplied for use alongside AST dual cartridge seals.
• Heat Exchangers (Seal Coolers) Heat exchangers (seal coolers) for API Plan 21 and Plan 23 flushing arrangements, available in various sizes with removable or welded heads. Carbon steel shell with 316SS coil construction.
• OEM Seal Rebuild Kits Genuine AST OEM rebuild kits for the AST seal product line, enabling quick, simple, and inexpensive on-site equipment repairs performed by the customer's own personnel using standard tools. Eliminates waiting for seal repairs and avoids contamination risk from exchange seals.

Quantifiable outcome

• Same-day delivery available on >94% of inventory standard and hard-to-find seals
• +2 more outcomes

Segments11 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Leading US FFKM ManufacturercoreStrategic or Co-development Partner · 31 January 2021Advanced Sealing Technology has a strategic alliance with a leading US FFKM (perfluoroelastomer) manufacturer to private label high-temperature and chemical resistant O-rings. AST offers AST380 (high-temperature to 600°F) and AST385 (broad chemical resistance including hot amines, steam, hot water to 570°F) FFKM O-rings. The company maintains inventory of O-rings for immediate delivery.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Garlock (EnPro Industries): Garlock (part of EnPro Industries) manufactures industrial sealing products including gaskets, packing, and seals, with overlapping product categories to AST in fluid sealing for rotating and static equipment.
• IDEX Corporation (Seal & Engineered Solutions): IDEX is a diversified fluidics and engineered-products platform that owns several seal brands (e.g., SEALOL) competing with AST in mechanical seals for pumps and rotating equipment. Provides a public-market comparable for valuation benchmarking.
• John Crane (Smiths Group): John Crane is the global market leader in mechanical seals and sealing systems, serving the same process-industry verticals (chemicals, power, pharma, oil & gas) as AST. AST competes against John Crane's installed base on after-market replacement and lead-time.
• Flowserve Corporation: Flowserve is a broad pumps, valves, and seals manufacturer; its mechanical seal portfolio competes with AST on process-pump seals, and Flowserve's pump OEM presence creates both a competitor and a potential specifier/customer dynamic similar to AST's situation.
• EagleBurgmann (Freudenberg): EagleBurgmann is a major global mechanical seal manufacturer belonging to Freudenberg, competing head-to-head with AST in cartridge and component seals for process pumps across virtually identical end-markets.

Direct peers

• Chesterton (A.W. Chesterton): A.W. Chesterton manufactures mechanical seals and industrial fluid-handling products for process pumps, and competes directly with AST in cartridge seals, component seals, and seal support systems for harsh applications.
• SEPCO (Seal & Engineering Products Company): SEPCO is a long-established US-based mechanical seal manufacturer serving process industries, with a comparable focus on cartridge and component seals for ANSI pumps and a distributor-led go-to-market model similar to AST.
• AESSEAL: AESSEAL is a leading global manufacturer of mechanical seals for rotating equipment, directly competing with AST across process-pump cartridge seals, component seals, and seal support systems. It is the closest pure-play comparable in scale and product overlap.

Emerging players

• Vulcan Seals: Vulcan Seals is a smaller specialty mechanical seal manufacturer focused on niche process applications, comparable to AST in size and channel-led distribution, though with a narrower product range.

Others

• Gapi Sealing Solutions: Gapi Sealing Solutions is an industrial seals distributor and service provider that overlaps with AST's distributor-partner network; comparable as a channel ecosystem participant in mechanical seals and fluid-handling spare parts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Advanced Sealing Technology