ASI Model 590
Double Seal

Phone: 423-753-3541 or 800-VEC-3541
Email: sales@valleyequipment.com Fax: 423-753-3589

Engineered for Survival


The Model 590 is designed to operate in environments where fluctuations in the seal barrier fluid supply are possible. Additionally, special features qualify the 590 for difficult seal process liquids like those that are sensitive to contact with air or have environmental consequences.


Reciprocal Design - This model can be used as a tandem seal, a double seal or a single seal with a spare seal backup. The closing force to the inboard seal face is completely automatic and regulated by the differntial of pressure between the process and barrier fluid.

Cartridge Mounted - the unitized design allows quick installation of the seal and impleller clearnace adjustments can be made without disassembling the pump.

Metal Encased Seal Faces - Inboard and outboard seal faces are encased, protecting plant staff and the operating environment from the dangers of seal face failure.

Stationary Design - Sealing face alignment comes from the pump shaft instead of the stuffing box face providing perfect sealing face squareness upon installation.

The highest quality at the lowest price today...
and tomorrow.

Drive Mechanism - Patented Safe-T-Studs™ transmit drive torque from the shaft to the seal from inside the seal which prevents seal damage, misalignment, and loosening common with other toque systems.


MATERIALS OF CONSTRUCTION

Metal Parts
Face Materials
Secondary Seals

Standard Metal Parts - 316SS
Standard Springs - Hastelloy® C
Standard Set Screws - 316SS

(Other materials may be specified)


Stationary Face:

  • High Quality Carbon Graphite
  • Tungsten Carbide
  • Silicon Carbide

Rotary Face:

  • Silicon Carbide


(Other materials may be specified)


Standard O-ring Materials:

  • Viton
  • EPR
  • Aflas ®

(Other materials may be specified)

Hastelloy is a trademark of Hayes Int'l, Inc., Aflas is a tradmeark of Asashi Glass Co., Ltd.

To learn more about Valley Equipment visit our Home Page


Valley Equipment Company

Jonesborough, TN
Phone: (423)753-3541 sales@valleyequipment.com