TREM / TREM Engineering mechanical seals and dry gas systems

TREM / TREM Engineering equipment: APITERM SD bellows seals, APILITE RDT cartridge seals, 50 Series seals, dry gas seals, and API 682 barrier systems.

APITERM SD high-temperature welded metal bellows seals

Welded metal bellows cartridge seals by TREM / TREM Engineering from the APITERM SD line are engineered in full accordance with API 682 Type C standards. They deliver stable containment for hot petroleum fluids without hang-up issues at temperatures up to +425 °C and 65 bar.

Stationary welded alloy bellows core engineered for severe thermal pumping units
Drop-in fitment for standard seal chambers conforming to API 610 specifications
High resistance to coking and polymerization when pumping heavy vacuum gas oils
Available in dual pressurized and unpressurized layouts with steam quench ports

APILITE RDT dual o-ring cartridge mechanical seals

Heavy-duty dual cartridge mechanical seals from TREM / TREM Engineering APILITE RDT family comply with API 682 Type A guidelines. Designed with FEA-optimized rings and dynamic elastomeric rings, they handle light hydrocarbons, volatile fluids, and LPG at pressures up to 50 bar.

Pre-assembled balanced cartridge design ensuring swift and error-free mounting
Minimized face deflection maintaining a rigid lubricating film under pressure
Seamless integration with auxiliary barrier fluid setups under Plans 52 and 53
Enhanced tolerance to short dry running events via premium contact materials

50 Series high pressure seals for pipeline pumping units

The 50 Series high-pressure seals by TREM / TREM Engineering are built for mainline crude oil pipeline pumps and high-pressure boiler feed pumps. Advanced FEA-engineered face profiles eliminate angular misalignment and cut leakage rates tenfold at dynamic pressures up to 200 bar.

Tight leakage rates limited to 15-30 ml/h during high-pressure validation tests
Reinforced stationary seal face geometries resisting heavy hydraulic loading
Optional diamond-like carbon DLC thin coatings applied for friction reduction
Positive torque transmission via heavy-duty drive pins and balanced sleeves

RO Series mechanical seals for crude oil and injection pumps

Built for field water injection and sour crude oil pumps, RO Series mechanical seals from TREM / TREM Engineering handle heavy abrasive duties. The specialized assembly permits up to 10 mm of dynamic axial shaft movement while preventing solids accumulation in the cavity.

Protected dynamic secondary ring path preventing elastomer hang-up and wear
Generous dynamic axial shaft movement allowance up to 10 mm for thermal expansion
Rugged silicon carbide and tungsten carbide hard faces for mineral slurries
Open flush geometry preventing sediment entrapment around flexible elements

Dry gas seals and control panels for centrifugal compressors

Non-contacting dry gas seals engineered by TREM / TREM Engineering replace troublesome wet oil sealing equipment on rotating gas compressors. Spiral and aerodynamic face grooves generate an air film separating faces up to 500 bar in hydrogen, natural gas, and syngas services.

Aerodynamic gas lubrication delivering non-contact rotation with minimal drag
Automated gas conditioning panels featuring redundant filtration and gauges
Comprehensive compressor retrofit engineering from oil systems to dry seals
DLC coating on carbide faces protecting during low-speed start and stop steps

Barrier fluid reservoirs and API 682 auxiliary support systems

Auxiliary seal support systems by TREM / TREM Engineering deliver reliable circulation of barrier and buffer fluids under API 682 Plan 52, 53A, 53B, and 54 schemes. Standard vessels include integral internal cooling coils rated to 63 bar, instrumentation blocks, and valves.

SO-12 and SO-20 reservoir vessels with built-in cooling coils rated to 63 bar
Plan 53B systems equipped with bladder accumulators for duties exceeding 10 bar
Explosion-proof level switches, pressure transmitters, and temperature sensors
Reliable auxiliary port connections built to ANSI B16.11 and ASME B16.5 standards

API 682 engineering standards and precision manufacturing at TREM Engineering

Mechanical shaft seals manufactured by TREM / TREM Engineering are developed in strict compliance with the rigorous API 682 fourth edition engineering rules.

The main industrial facility in the Moscow Region is equipped with modern multi-axis CNC machining centers, dedicated automated micro-plasma and laser welding lines for alloy bellows fabrication, and advanced test rigs.

Critical seal face geometries undergo finite element structural stress analysis and laser interferometric flatness inspections with sub-micron precision.

This meticulous production approach guarantees superior hydraulic face stability, minimal heat generation, and extended mean time between failures across oil refineries and petrochemical facilities worldwide.

High-temperature APITERM welded metal bellows seals for heavy hydrocarbons

To reliably contain vacuum gas oil, hot tar, atmospheric residue, and thermal cracking feedstocks at operating temperatures up to +425 °C, TREM / TREM Engineering provides APITERM SD cartridge seals conforming to API 682 Type C.

The stationary welded alloy bellows arrangement eliminates secondary dynamic elastomeric packing rings, which inherently suffer from thermal degradation, hardening, and hang-up when exposed to severe temperatures.

Precision edge-welded Hastelloy plates maintain resilient closing forces over extended campaigns, while low-pressure steam injection ports prevent coking, resin buildup, and crystallization on the outboard atmospheric side of the pump seal chamber.

Application of APILITE cartridge mechanical seals on light hydrocarbons and LPG

The APILITE RDT family of cartridge mechanical seals complies with API 682 Type A provisions, delivering exceptional performance when handling volatile organic fluids, light crude fractions, and liquefied petroleum gases at working pressures up to 50 bar.

The factory-balanced dual cartridge design eliminates mounting alignment errors during plant turnarounds. Finite element optimized seal face profiles prevent thermal crowning and mechanical deformation, maintaining a fluid lubricating film between the mating rings.

Fully compatible with API Plan 52 and Plan 53 auxiliary flush piping circuits, these seals deliver reliable zero-emission fluid containment on industrial pumps.

50 Series mechanical sealing technology for high-pressure crude oil pipelines

Mainline crude oil transmission networks and high-pressure boiler feed pump duties generate massive hydraulic pressures up to 200 bar accompanied by intense shaft speeds.

High-pressure mechanical seals from the 50 Series by TREM / TREM Engineering feature balanced face designs that prevent pressure-induced angular deflection and interface opening.

Dynamic rig testing at 3000 rpm demonstrates a tenfold reduction in fluid leakage compared to conventional designs, holding emission rates within 15 to 30 ml/h.

Combining reaction-bonded silicon carbide and tough tungsten carbide hard faces provides rugged protection against abrasive mineral particles and hydraulic pressure pulsations.

Design principles and retrofit engineering of dry gas seals for compressors

Dry gas seals engineered by TREM / TREM Engineering represent the highest tier of rotating compressor sealing technology.

During dynamic rotation, laser-machined spiral or V-grooves on the silicon carbide ring faces generate strong aerodynamic lift, creating a stiff lubricating gas film 3 to 5 micrometers thick.

This non-contacting operational mode totally eliminates face friction and substantially lowers compressor parasitic power consumption.

To maintain pristine operating conditions, the company supplies pre-piped gas conditioning panels with redundant coalescing filters and automated instrumentation, facilitating seamless upgrade conversions from legacy wet oil seals.

Auxiliary API 682 support systems and barrier fluid reservoir selection

To maintain optimal thermal equilibrium and positive lubrication for double mechanical seals, TREM / TREM Engineering manufactures auxiliary fluid management systems adhering to API 682 standards.

Heavy-duty SO-12 and SO-20 reservoir vessels feature integral internal cooling coils rated to 63 bar, supporting thermo-siphon circulation under Plan 52 and Plan 53A schemes.

For high-pressure installations operating above 10 bar, the company provides closed-loop Plan 53B units with bladder accumulators.

The synthetic rubber bladder prevents nitrogen gas dissolution into the barrier fluid, ensuring dependable pressurization across critical refinery and petrochemical pipeline pumps.

TREM / TREM Engineering and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of TREM / TREM Engineering and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.