O-ring or welded metal bellows mechanical seals

Latest generation seals (recommended)

ProductDescriptionDesignationSuggested Industry
APITERM SD mechanical seal Dual cartridge welded metal bellowsmechanical seal, for high temperatureapplications API 682 Type C, Arrangements 2 and 3 Oil refiningpetrochemical, gas producing
APILITE RDT mechanical seal Dual, double-balanced, o-ring API mechanical seal API 682 Type A, Arrangement 2 and 3 Oil refining, petrochemical, gas producing
50 Series mechanical seal High pressure mechanical seal, single, tandem or double API 682 Type A, Arrangement 1, 2 or 3 Oil Producing, oil transportation, oil refining, petrochemical, power generation

Single seals for oil and gas applications (recommended)

ProductDescriptionDesignationSuggested Industry
RO mechanical seal Single cartridge o-ring mechanical seal (with optional hang up protection) API 682 Type A, Arrangement 1 Oil producing, oil transportation

Compact mechanical seals (recommended)

Standard seals are designed to fit ISO 3069 seal chambers.

ProductDescriptionDesignationSuggested Industry
RDU mechanical seal Dual, double-balanced, o-ring mechanical seal Type A, Arrangement 3 and 2 Petrochemical, chemical, pulp and paper, mining
RSO mechanical seal Single o-ring mechanical seal Type A, Arrangement 1 Mining, petrochemical, chemical, pulp and paper

Traditional mechanical seals (old models)

ProductDescriptionDesignationSuggested Industry
SD mechanical seal Dual cartridge welded metal bellows mechanical seal, for high temperature applications API 682 Type C, Arrangements 2 and 3 Oil refining, petrochemical, gas producing
SO mechanical seal Single cartridge welded metal bellows mechanical seal, for high temperature applications API 682 Type C, Arrangement 1 Oil refining, petrochemical
RDT-37 mechanical seal Tandem o-ring mechanical seal API 682 Type A, Arrangement 2 Oil refining, petrochemical, gas producing
RDT-48A mechanical seal Tandem o-ring mechanical seal, for high pressure applications API 682 Type A, Arrangement 2 Oil refining, petrochemical, gas producing
RDD mechanical seal Double o-ring mechanical seal for pumps and mixers API 682 Type A, Arrangement 3 Petrochemical, chemical
SDVT mechanical seal Tandem cartridge welded metal bellows mechanical seal with stationary o-rings, for chemical applications API 682 Type B, Arrangement 2 Petrochemical, chemical, oil refining

TREM Engineering offers mechanical seals for process pumps with high reliability and an excellent value for money. Within the production range are the following types of mechanical seals as defined by API682 Standard:

  • by Arrangement - Arrangements 1, 2 and 3 (single, tandem, and double)
  • by Type - Types A, B and C (o-ring type with multiple springs, welded metal bellows type with static o-rings, and welded metal bellows type with flexible graphite secondary seals).

We have extensive experience in supplying:

  • seals and seal systems for new projects;
  • seals for existing pumps and seal systems, to improve MTBR;
  • seals and seal systems to retrofit existing pumps, often from single seals to dual seals, to improve industrial and ecological safety.

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