PRODUCT SPECIFICATIONS:

• Item: Single Component Mechanical Seal / Marine Pump Shaft Seal

• Make / Brand: Azcue Pumps (Bomba Azcue, Spain)

• Part Number / Code: VCMEC430000 (OEM Part Reference: 4200.1)

• Seal Model / Size: AN-43 (43 mm Shaft Diameter)

• Design Type: Unbalanced, single spring, rubber bellows / conical spring mechanical shaft seal (Burgmann / Type 21 / MG1 equivalent design for marine centrifugal pumps)

• Shaft Size (d_1): 43 mm

• Seal Face Materials: Carbon vs Silicon Carbide (SiC) / Tungsten Carbide (TC)

• Stationary Seat: Ceramic / Silicon Carbide with rubber cup / O-ring mount

• Elastomer / Secondary Seals: NBR (Nitrile) standard / FKM (Viton) for thermal fluid & fuel duties

• Spring & Hardware: Stainless Steel (AISI 316 / 1.4571)

• Operating Pressure: Up to 12 Bar (1.2 MPa)

• Operating Temperature: -20°C to +120°C (depending on elastomer selection)

• Sliding Velocity: Up to 10 m/s

• Compatible Pump Models: Azcue marine centrifugal pump series including:

Azcue CA / CP Series (Monobloc / In-line centrifugal)

Azcue MN / KL / VM Series

Azcue BT / BR Centrifugal & Seawater Service Pumps

• Medium Handled: Seawater, fresh water, bilge water, lube oil, glycol cooling mixtures, light hydrocarbons

• Applications: Ship main engine cooling seawater/freshwater circulating pumps, ballast pumps, general service (G/S) pumps, fire & bilge pumps, and boiler feed water transfer pumps.

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