The Flygt metal bellow mechanical seal is a heavy-duty, corrosion-resistant cartridge seal engineered as a direct OEM replacement for Flygt submersible pumps (including 2000, 3000, and 5000 series). Featuring a robust Hastelloy C-276 bellows and Tungsten Carbide (TC) faces, it is specifically designed to handle the harshest conditions, including raw sewage, abrasive slurries, and aggressive chemicals in mining and wastewater applications. Its self-cleaning, clog-proof design eliminates the failure points associated with traditional elastomer seals.

Flygt pump mechanical seals covers a full range of aftermarket seals engineered as direct OEM-equivalent replacements for Flygt (now Xylem) submersible pumps, including the 2000, 3000, and 5000 series. Available in multiple configurations—Rubber Bellows (standard Plug-in/Griploc for sewage), Metal Bellows (Hastelloy for harsh chemicals/abrasives), and Cartridge Seals—these Flygt pump mechanical seal units ensure precise dimensional and functional compatibility. They are built to handle demanding environments like raw sewage, industrial wastewater, and abrasive slurries, offering reliable motor protection and extended pump life.

The Flygt Mechanical seals for flygt pump 2610, 2620, 2630, 2640, 4610, and 4620 are precision-engineered 20mm Plug-in Cartridge Seals designed as direct OEM replacements. These double-seal units (motor side + impeller side) feature a robust Tungsten Carbide (TC) face combination and Viton elastomers, built to withstand the harsh conditions of submersible wastewater, sewage, and dewatering applications. Offering exact dimensional interchangeability with original Flygt part numbers (e.g., 769.94.30), they ensure reliable motor protection and extended pump life in demanding environments.

The 60mm Flygt mechanical seal is a heavy-duty Plug-in cartridge seal engineered as a direct OEM replacement for large Flygt submersible pumps including models 5100.300, 5100.310, 5150, 3202, 4670, and 4680. This double-seal unit (motor side + impeller side) features a robust Tungsten Carbide (TC) face combination and Viton (FKM) elastomers housed in a stainless steel cartridge. Designed for 60mm shafts, it delivers reliable performance in demanding applications such as raw sewage, abrasive slurries, and industrial wastewater, ensuring maximum motor protection and extended pump life.

The Flygt 45mm Plug-in cartridge mechanical seal is a precision-engineered double-seal unit designed as a direct OEM replacement for Flygt submersible pumps with 45mm shafts, including models 3171, 4650, 4660, and the 5100 series (e.g., 5100.250, 5100.251, 5100.260, 5100.261). This pre-assembled cartridge features a robust Tungsten Carbide (TC) vs. TC face combination and Viton (FKM) elastomers housed in a corrosion-resistant stainless steel frame. Engineered for demanding wastewater, sewage, and abrasive slurry applications, it offers exact dimensional interchangeability (cross-referencing OEM part 6196430) and simplifies maintenance with its drop-in plug-in design, ensuring reliable motor protection and extended pump service life.

The Flygt 45mm Plug-in mechanical seal is a precision-engineered double cartridge mechanical seal designed as a direct OEM replacement for Flygt submersible pumps with 45mm shafts, including models 3171, 4650, 4660, and the 5100 series (e.g., 5100.250, .251, .260, .261). Engineered for demanding wastewater, sewage, and abrasive slurry applications, mechanical seal 45mm offers exact dimensional interchangeability (cross-referencing OEM part 6196430) and simplifies maintenance with its drop-in plug-in design, ensuring reliable motor protection and extended pump service life.

• Thermal Stability: SiC's superior thermal conductivity helps dissipate the heat generated by two sets of seal faces, preventing barrier fluid overheating.

• Modular Flexibility: Allows pump repair shops to configure back-to-back or tandem seals tailored to specific pump chamber dimensions without buying a full cartridge.

• Debris Exclusion: Includes a dust lip or scraper to prevent powder product from entering the seal face area.

• Low Friction Topography: The seal faces feature a laser-textured surface to reduce friction and heat generation during dry running.

• Direct Dimensional Match: Replicates the working length and seat dimensions of the OEM seal, allowing for a drop-in replacement without pump modification.

• High-Temp FKM: Standard with high-grade FKM (Viton®) bellows to withstand the elevated temperatures of palm oil processing.

• Reaction Bonded vs. Sintered: We offer cost-effective Reaction Bonded SiC for general abrasion and premium Sintered SiC for extreme chemical inertness.

• Flush Ports: Integrated flush ports allow for external cooling or cleaning of the seal faces (API Plan 11/32).

• Monolithic Faces: We use monolithic SiC faces (solid) rather than inserted faces, providing better heat transfer and eliminating the risk of face detachment.

• Heavy-Duty Spring: The coil spring is designed to handle the slightly higher friction torque of hard faces without winding up.

• Sintered SiC: We use high-grade Sintered Alpha SiC for maximum hardness and chemical inertness, ensuring reliability in aggressive industrial effluents.

• Positive Drive Bellow: The elastomer bellow friction-drives the rotary face, eliminating drive pins that can corrode in sewage environments.

Carbon graphite mechanical seals are drop-in OEM-interchangeable Alfa Laval pump mechanical seal replacements for LKH, SolidC and MR series water pumps. Featuring FDA-grade self-lubricating carbon graphite faces, this Alfa Laval mechanical seal resists thermal shock from CIP/SIP cycles, allows dry-run tolerance during tank emptying, and uses an open hygienic geometry for tool-free cleaning—supplied direct from our ISO 9001 factory at competitive cost.

Carbon graphite mechanical seal assemblies are drop-in OEM-interchangeable grundfos pump mechanical seals for CR, CRN, NK, TP and CHI series circulators and multistage boosters. Featuring self-lubricating FDA-grade carbon graphite rotating faces paired with tungsten carbide or SiC stationary seats, they resist thermal cycling in HVAC and domestic water duty, tolerate brief dry-run, and ship factory-direct from our ISO 9001 workshop at wholesale cost.

• Unitized Assembly: The spring, bellow, and drive ring are a single unit, making it impossible to lose parts during field repair.

• Soft Face: The carbon face conforms quickly to the mating seat, ensuring a tight seal almost immediately after installation without a long break-in period.

• Protective Sleeve: The cartridge sleeve protects the 20mm/22mm shaft from wear by the O-rings or set screws.

• Hydraulic Balance: Balanced face design allows it to handle pressure spikes better than standard unbalanced component seals in small booster systems.

• Leak-Free Upgrade: Converts a dripping stuffing box into a zero-leakage system, improving plant hygiene and safety.

• Low Friction: Carbon reduces power consumption compared to the high drag of tight gland packing.

• Non-Sparking: Carbon faces are non-sparking, making them safer for handling flammable solvents than metal-to-metal contact.

• Heat Dissipation: The low coefficient of friction generates minimal heat, preventing the vaporization of volatile chemicals at the seal face.

• Nickel-Binder TC: We utilize Nickel-bonded Tungsten Carbide which offers better corrosion resistance in water and general chemical applications than Cobalt-bonded grades.

• Optimized Geometry: The seal faces are lapped to within 2 light bands of flatness, ensuring leak-free performance right out of the box.

• Hydraulic Balance: The cartridge design incorporates a balanced face geometry, allowing it to handle pressure spikes in centrifugal systems without face separation.

• Easy Installation: Eliminates the need for measuring spring compression, reducing installation time by 75% compared to component seals.