Seal Faces: Sintered Silicon Carbide (SiC/SiC), Tungsten Carbide (TC/TC), or Carbon Graphite/SiC for maximum abrasion and corrosion resistance.
Secondary Seals (O‑rings): EPDM, FKM (Viton), FFKM, or PTFE for compatibility with corrosive, high‑temperature, or chemical media.
Metal Components: 316L, duplex stainless steel (2205/2507), or Alloy C276 for high corrosion resistance in aggressive services.
Springs: 316L or Hastelloy C276, isolated from process fluid to prevent fouling and clogging.
MOR HTM series is a single‑acting, balanced, multi‑spring pusher‑type mechanical seal, designed for heavy‑duty centrifugal pumps handling corrosive, abrasive, and high‑temperature fluids in refinery, petrochemical, and general industrial applications. It follows API 610, API 682 (Type A), ISO 21049, and DIN 24960 standards, offering reliable performance and easy maintenance.
Key Features
Multi‑Spring Arrangement: Evenly distributed external springs ensure uniform face loading, excellent compensation for shaft runout, vibration, and wear, while avoiding clogging in particle‑laden or crystallizing fluids.
Hydraulically Balanced Design: Reduces seal face loading and heat generation, extending service life in medium‑to‑high pressure and high‑temperature applications.
Cartridge or Non‑Cartridge Options: Available in pre‑assembled cartridge configuration for error‑free installation, or standard component design for flexible retrofitting.
O‑Ring Pusher Type: Elastomer O‑rings provide reliable dynamic sealing, with options for high‑temperature and chemical‑resistant materials.
Integrated Shaft Sleeve (Cartridge Version): Protects the pump shaft from abrasion, corrosion, and high‑speed wear, simplifying maintenance.
Flanged Gland Design: Standard flange mounting compatible with API 610 pump seal chambers, with ports for flush, quench, or barrier fluid systems (API Plans 11, 32, 52, 53).
Bidirectional Rotation: No need to distinguish rotation direction during installation, enhancing on‑site convenience.
Applications
Refinery & Petrochemical: Crude oil, vacuum distillation, hydrocracking, and catalytic reforming pumps.
Chemical Processing: Acids, alkalis, solvents, and volatile organic compounds (VOCs).
Power Generation: Boiler feed pumps, circulating water pumps, and flue‑gas desulfurization (FGD) pumps.
Mining & Minerals: Slurry pumps transporting abrasive mineral ores and tailings.
General Industry: High‑pressure water pumps, hot oil pumps, and process pumps handling corrosive or abrasive fluids.
Advantages
Superior Slurry & Fouling Resistance: External multi‑spring arrangement prevents clogging in particle‑laden, crystallizing, or slurry fluids.
High Reliability: Balanced design and robust materials ensure stable performance in high‑pressure, high‑temperature, and corrosive services.
Flexible Installation: Available in cartridge and non‑cartridge versions to suit new pumps and retrofitting projects.
Low Maintenance: Cartridge design minimizes installation time and alignment errors, reducing downtime and operational costs.
Wide Compatibility: Direct replacement for international OEM seals and compatible with API 610 centrifugal pumps.
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