328 Cartridge Seal Double Mechanical Seal for Pumps

The structural characteristics of the 328 series cartridge type mechanical seals are similar to the 318 cartridge seals. The 328 series is designed with a flushing port and double sealing face. It is suitable for working conditions where system pressure quickly increases or decreases due to the back-to-back structure.

The 328 mechanical seal is ideal for hazardous media, as well as media that tend to solidify or vaporize easily. The 328B double sealing face with bearing can effectively control the vibration and shaking of the equipment.

• Spring assembly isolated from the product, preventing spring sticking and clogging

• Secure operation (fracture-free) due to seal face locking via square pin

• Suitable for pressure reversal conditions

• Capable of operating in a vacuum without additional seat locking

• No shaft damage from dynamically loaded O-rings

• Small installation sizes

• Ideal for conversions; no pump adaptations required

• Insensitive to solid containing and abrasive media

• Benefits of a balanced seal, even with plain shafts

• Stationary design insensitive to shaft movement

The application of 328 cartridge seal is universal, covering the chemical, refining, and water treatment industries. It is suitable for dirty, abrasive and solid containing media, fugitive hydrocarbons, sticky and stringy media, etc. This balanced mechanical seal is commonly used for chemical standard pumps and sewage pumps.