• Pressure
  • Pusher: Up to 21 bar (300 psig)
  • Bellows: Up to 14 bar (200 psig)
  • Temperature: -40 to 204°C (-40 to 400°F)
  • Speed: Up to 23 m/s (75 fps)
  • Specific Gravity >0.6
• Shaft Size
  • Pusher: 25.40 to 203.2 mm (1.000 to 8.000 inch)
  • Bellows: 25.40 to 95.25 mm (1.000 to 3.750 inch)

• Materials of Construction
  • Metal Parts: 316 Stainless Steel, Alloy C-276
  • Mating Ring: Direct Sintered Silicon Carbide
  • Primary Ring: Resin Grade Carbon, Direct Sintered Silicon Carbide
  • Metal Bellows: Alloy C-276
  • Springs: Alloy C-276
  • Elastomers: Fluoroelastomer, Perfluoroelastomer

Benefit

• According to API 682 design and test criteria, these pumps are Category 1 ASME B73.1 and Category 2 API 610.
• Type A pusher seals have multiple coil springs that are non-rotating and non-wetted, ensuring exceptional clogging resistance even in the presence of defective equipment alignment conditions.
• Type B seals have edge-welded metal bellows that revolve with the shaft, creating a self-cleaning effect that helps to avoid dirt accumulation.
• Thermal management technology improves seal face heat transmission, lowers seal face temperatures and increases tolerance to dry running conditions.
• All models have hydraulically retained and double balanced seal faces, allowing for continuous operation during inadvertent reverse pressurization.
• The circulating device built within the dual seal cartridge circulates barrier fluid to keep the seal faces cool. For fluids above 75°C (167°F), a circulating device is also available with single seals.
• The available multiport flush distributes flush fluid evenly throughout the seal faces, reducing temperature gradients and improving seal face flatness.
• Gland throttle bushings are offered in fixed, floating and segmented configurations for secondary containment in single seal setups.