AESSEAL

AESSEAL® provides a comprehensive dry gas seal refurbishment program, for AESSEAL® and non AESSEAL® designs. The dry gas seal repair program supports all customers, regardless of the original equipment manufacturer.

Service options include

• Test regime to API 617 (dynamic tests use dedicated test equipment)
• Refurbishment lead times in less than 8 weeks
• Computerized face analysis
• Polymer or ‘O’ Ring secondary seal designs
• Full certification pack including video test surveillance
• Post-test inspection reports
• Refurbishment of all types of groove profiles

• Better sealing effect – longer service life
• Faster and easier installation – error prevention
• Perfect cut – elimination of waste
• Even pressure distribution – shorter run-in process
• Minimized energy loss due to reduced friction

• Simple to install, universal plant-wide use
• Excellent adaption, ideal to compensate uneven gland surfaces
• Physiologically safe in temperatures up to 260ºC/500ºF
• Selection criteria: max unevenness of gland should not be greater than 1/3 of resulting seal thickness

• Double Faces – Double the Protection
• Compact Design
• Sacrificial Shroud
• Multiple Seal Face Material Selection
• Axial Position of the Rotary Elastomer

• Extend the bearing life of large, high maintenance cost equipment
• Reliable protection against contamination ingress and lubricant egress
• Easy installation – Radially split design
• Positive lubricant retention throughout the life of the equipment
• No shaft wear or damage to equipment

• High temperature static shaft seal
• Steam deflector / Flinger
• Aflas ‘O’ rings as standard
• Internal shut-off valve
• Extra clearances for thermal expansion

• A unique two-piece stator design that provides a self-aligning joint that allows the seal to align both to the bearing block and to the shaft.
• The joint also provides constant pressure on the static elastomer to provide positive sealing throughout the range of motion.

• A unique sliding rotor that allows the seal to absorb axial movement internally.
• Superior protection against contamination ingress as the rotor to stator seal integrity is not affected by the axial movement
• Unique dual rotor design with drivelock for superior reliability

• A cost effective bearing protection upgrade solution, which is non repairable.
• Specifically designed to inhibit water ingress and oil egress.

• Verification Tested contacting & non-contacting bearing seal designs
• Proven to increase equipment reliability in pumps, electric motors, fans, pillow blocks, steam turbines and gearboxes
• IP66 certified designs that conform to IEEE Std. 841-2009
• No shaft wear. Retro fittable on shafts previously worn by lip seals
• Easily rebuildable with no special tools, chemicals or equipment

• Unique oil mist collecting and retainment system for improved seal life
• Sizes available from 0.750” to 5.875” (16mm – 145mm) larger sizes 6.000” to 12.000” (150mm – 300mm) also available on request

• High speeds – Stationary multi-spring design for even face loading
• High pressures – Robust seal-faces minimize the effects of pressure distortion
• Monolithic seal-faces – maintain flatness under temperature fluctuations
• Axial displacement capacity to accommodate machine build tolerance and differential thermal expansions
• Seal face design optimized using FEA and hydrodynamic algorithms
• Seal-face loading factory set and statically tested prior to despatch
• Sculpted lug drive for improved torque transmission
• Compact and robust design allows seal to be fitted on close bearing centre pumps

• Increased turbine reliability
• Reduced turbine maintenance costs
• Reduced bearing contamination
• Non-contacting technology extends life of seal
• Elimination of Shaft Wear – generated by the Carbon seal
• Greatly reduces steam loss and increases efficiency

• Non-contacting spiral groove face technology
• Long life with low power consumption
• Externally mounted and suitable for ISO 5199 and ANSI pumps
• Can be adapted to fit other types of rotating equipment
• Zero process emissions
• Low running costs

• Ideally suited for retrofitting wet compressor seals and bushings or as a replacement for existing Dry Gas seals
• Supplied in 410 stainless steel as standard with exotic alloy options on request
• Available with Silicon Carbide seats as standard. Tungsten Carbide and Silicon Nitride seats available on request. Mating faces available in Carbon and synthetic diamond coated Silicon Carbide
• ‘O’ ring and spring energized polymer versions available
• Designs available in single, double, tandem or tandem with intermediate labyrinth, for increased integrity
• Fully shrouded seats adopted as standard
• Bi-directional seal designs available

• Unique, patented hydrostatic and hydrodynamic Dry Gas Compressor seal technology offers robust protection for the sealing surfaces during start-up, coast down, slow roll and upset conditions
• Increased hydrostatic lift for early face separation at much lower pressure differential than conventional seals
• Dynamic leakage considerably lower than comparable conventional spiral groove seals
• Capable of withstanding unintentional reverse rotation
• ‘O’ ring and spring energized polymer versions available
• Designs available in tandem or tandem with intermediate labyrinth for increased integrity
• Fully shrouded seats adopted as standard

The advantages of sealing pumps with dual pressurized dry gas seals are becoming widely recognized throughout industry. AESSEAL® has developed a range of pump dry gas seals to suit every application.

The CCS™ is a tandem cartridge seal where the inboard seal is designed to seal up to 82 bar (1200 psi), and an outboard seal that acts as a low pressure tandem seal.

High quality compressor dry gas seal support systems engineered to customer requirements for all seal configurations and applications

AESSEAL® has unique patented hydrostatic and hydrodynamic Dry Gas Compressor seal technology, offering robust protection for the sealing surfaces during start-up, shutdown, slow roll and upset conditions.

Non-contacting, gas lift dual cartridge seal primarily designed for pumps (ANSI/DIN) providing practically zero process emissions in service.

The STS mechanical seal has been developed in conjunction with a major oil refinery to replace existing carbon ring seals normally fitted to steam turbines.

• Designed and manufactured in accordance with ASME VIII Div.1 and comply with Pressure Equipment Directive PED (2014/68/EU) – Suitable for a wide range of arduous environments. Design rating of 45 bar @ 100°C / 652.7 psi @ 212°F
• 316 SS vessel and weld pad construction    – Robust vessel suitable for a range of challenging environments
• 28 litre / 7.309 gal (US) vessel -Large barrier fluid capacity for seal cooling
• Modular design – A number of intrinsically safe and EEXD explosion-proof instrumentation options can be fitted

• Bladder accumulator based system, for use in situations where contamination of the barrier fluid with nitrogen is not acceptable.
• Available with a choice of accumulator materials to suit application
• Available with a range of cooling solutions including finned tube air cooling.
• Typically used in chemical, offshore and refining industries.
• Utilises oil or water as barrier fluid.
• System can be isolated from nitrogen source when in operation

• Vessels are designed and manufactured in accordance with ASME VllI Div.1 and PED 2014/68/EU
• 316 SS vessel and weld pad construction
• Integral cooling coil as standard
• Operate at pressures up to 30 bar/435psi and temperatures up to 100°C/212°F.

• Forced Circulation – Maximizes heat dump potential for the more arduous applications
• Modular Design – Allows the PUMPPAC™ to be installed in a variety of zoned environments by interchanging the instrumentation options
• The PUMPPAC can be installed in a variety of zoned environments by interchanging the instrumentation options
• Capable of supplying split flows and a range of pressures for two or more mechanical seals

• High Efficiency Cooler: Provides optimal heat removal in arduous environments
• Easily Dismantled: Simple cleaning and maintenance
• Industry Accepted Design: Meets the requirements of API 682, ASME VIII Div 1,CE marked and complies with PED 2014/68/EU
• Meets Requirements of API 682

The AESSEAL^® Python is an advanced air cooled heat exchanger for cooling mechanical seal barrier / buffer / flush fluids.

Air cooling is achieved through natural convection without the need for cooling water. The unit consists of a tube formed into a coil, terminated with inlet and outlet manifolds. The Python is available in both 8m single and 16m dual coil arrangements.

• Requires No Plant Utilities Services: Simple low cost Installation and minimal maintenance
• 316 SS Tube with Stainless Steel Fins. Robust Design suitable for a wide range of arduous environments
• Designed and manufactured in accordance with ASME VIII Div 1, complies with PED 2014/68/EU

• Constructed from 316 stainless steel tube and cast iron casing as standard.
• Simple construction allows cleaning and maintenance of the shell side to prevent fouling for long term operation
• Application Suitability: High pressure, high heat load, liquid-to-liquid applications

• Integral 304 SS Weld Pad Level Gauge – Robust and industrially acceptable visual indication of fluid level
• 12 litre / 3.2 gal (US) 304 SS Vessel Construction – Suitable for a range of  challenging environments
• Satin Bead Blast Vessel Finish – Suitable for a wide range of industrial environments
• Available with / without Cooling Coil – Additional heat dump available if required

• 10 litre / 2.8 gal (US) 304 SS vessel construction – Suitable for a range of challenging environments
• Water Regulator – Maintains water level and pressure in the vessel
• Flow indicator – Visually alerts the user of an inboard seal failure
• Non-return valve – Protects plant water supply from potential contamination and maintains vessel pressure in the event of water-supply interruption
• Available with / without cooling – Additional heat dump available if required

• Adjustable flow meter – Controls the amount of water flowing to the mechanical seal for cooling purposes
• Innovative flow tube cleaning mechanism – The device can be cleaned without interrupting flow and pressure to the seal
• Unique segmental valves – Prevent FlowTrue from clogging
• Integrated non-return valve – Protects plant water supply from product contamination
• Modular design – Ensures that the device can be easily upgraded and repaired

• Integral deflector guides barrier fluid under faces and extends seal life
• Directed Barrier Fluid Circulation
• Bi-directional Barrier Fluid Circulation
• Fits in Thin Radial Cross Sectional Spaces
• Hydraulically balanced seal-face technology for reduced power consumption
• Non-shaft-fretting sleeve elastomer and positive set screw shaft drive

• Monolithic seal faces provide maximum face stability in high temperature applications improving seal life.
• Seal face drive over large contact area prevents damage to faces in stop / start applications and viscous fluids.
• A highly effective bi-directional pumping scroll to maximise cooling and increase seal life.
• Integral deflector guides cooling barrier fluid to the most essential areas and extends seal life
• Hydraulically balanced seal-face technology for reduced power consumption with the ability to withstand pressure fluctuations
• Non-shaft-fretting sleeve elastomer and positive set screw shaft drive
• Stationary design is suitable for high speed applications

• Cartridge seal design replaces the two part component seals and conventional packing arrangements
• Hydraulically balanced seal face design
• Easy to install
• No shaft fretting design

• Easy and reliable installation
• Self-aligning face
• Non-clogging internal rotary
• Eliminates leakage
• Reduces power consumption
• Balanced seal face
• Available with flush port as standard for cooling or venting, in order to maximize seal life

• Easy and reliable installation
• Self-aligning face
• Non-clogging internal rotary
• Eliminates leakage
• Reduces power consumption
• Balanced seal face
• Available with flush port as standard for cooling or venting, in order to maximize seal life

• Monolithic seal face
• Seal face driven by large contact area
• Short inboard axial length
• Hydraulically balanced seal face
• Non shaft fretting
• Stationary design

• Patented self-aligning inboard and outboard seal faces
• Cartridge design unit for easy and reliable installation
• Hydraulically balanced inboard and outboard seal faces
• Independent seal face design
• Double or tandem seal protection
• Modular construction for maximum adaptability
• Quench and drain environmental control ports

• Employs Qualification Tested API 682 Technology
• Thin cross-section (TXS) seal designs for mature asset installation including API 610, 5th Ed.
• Robust and reliable seal face drive (Patented floating drive technology) reduces high stress points at equipment start-up

• Qualification Tested to API 682
• Stationary flexible element offered as standard for improved pusher design performance as outlined in API 682 Section 6.1.1.5.
• Rotary design is available on request
• Multi-port Flush design offered as standard for optimum seal face cooling
• World-leading bi-directional pumping ring performance

• Qualification Tested to API 682
• Effective seal-face heat dissipation achieved by a directed barrier fluid flow path, irrespective of shaft rotational direction
• Multi-port Flush design offered as standard for optimum seal face cooling
• 12 edge-welded bellows convolutions as standard

• Qualification Tested to API 682
• World-leading bi-directional pumping ring performance
• Effective seal-face heat dissipation achieved by directed barrier fluid flow path in both single and dual designs
• Segmented floating containment bush operates on a hard plated cartridge sleeve as standard (single seal)
• Identical seal-face technology employed at the inboard and outboard positions (dual seal)

• Containment seal technology that exceeds the requirements of API 682 Ed 3, Section 4.2 and ISO 21049
• High heat dissipation properties due to the AESSEAL^®close coupled technology supplied in a robust, short working length pusher design
• Eliminates the need for liquid barrier systems
• Isolation bushing available
• Modular design to all Type A, B and C configurations
• Contacting and non-contacting design
• Bi-directional option available