Seal Faces: Carbon Graphite / Reaction‑Bonded SiC / Sintered SiC / Tungsten Carbide (Co‑Cr / Ni‑Binder)
Metal Bellows: Inconel 718, Alloy C‑276, 316L Stainless Steel
Secondary Seals: Flexible Graphite, PTFE, Kalrez® (no dynamic elastomers)
Hardware: 316L, Alloy C‑276, Titanium
MOR LBG Metal Bellows Cartridge Seal is a balanced, rotating welded metal bellows cartridge mechanical seal, designed for reliable sealing in high-temperature, corrosive, and crystallizing fluid services in centrifugal pumps and rotating equipment. It features a fully integrated cartridge design for easy installation and zero elastomer dynamic sealing, making it ideal for harsh process conditions.
Key Features
Cartridge Unitized Design: Pre-assembled, self-contained cartridge for fast, error-free installation; no shaft adjustment or component alignment required.
Balanced Rotating Metal Bellows: Thin-walled welded metal bellows (Inconel/316L) provides uniform face loading, compensates for shaft movement, vibration, and thermal expansion.
Zero Dynamic Elastomers: Eliminates O‑ring hang‑up, degradation, or cold‑flow issues; operates beyond elastomer temperature limits.
Self‑Cleaning Bellows Profile: Rotating design prevents buildup of solids, crystals, or coke; ideal for fouling services.
Hydraulically Balanced: Reduces seal face loading for high‑pressure capability and extended life.
Robust Drive Mechanism: Positive torque transfer via drive lugs/slots; no set screws on shaft.
Wide Shaft Accommodation: Fits standard pump seal chambers; available in single and dual (API 682) configurations.
Advantages
Extreme Temperature Resistance: Operates reliably at ‑70°C to 400°C, far exceeding elastomer‑based seals.
Corrosion & Fouling Resistance: Performs in acids, alkalis, solvents, and crystallizing/coking fluids.
No Elastomer Failure: Eliminates common failure modes in harsh environments.
Low Maintenance & Long Life: Reduced downtime; extended MTBR (Mean Time Between Repair).
Easy Installation: Cartridge design cuts installation time and avoids misalignment.
API Compliance: Meets stringent refinery/petrochemical standards for safety and emissions.
Typical Applications
Refining & Petrochemical: Crude/vacuum distillation, FCC slurry, hydrocracking, delayed coking, hot oil, asphalt, and LPG pumps.
Chemical Processing: Strong acids, caustics, solvents, molten salts, and crystallizing media.
Power Generation: Boiler feed, condensate, ash slurry, and flue‑gas desulfurization pumps.
Pharmaceutical & Food: High‑purity, sterile, and high‑temperature process fluids.
Pulp & Paper: Black liquor, white liquor, and fibrous slurry pumps.
Mining & Metallurgy: Acid leach, electrolyte, and mineral slurry pumps.
Hot Tags: mor lbg cartridge metal bellow seal, China mor lbg cartridge metal bellow seal suppliers, factory, api mechanical seal, booster pump mechanical seal, double mechanical seal parts, metal bellow seal, metal bellow seals, rotating mechanical seal
