Flowseal Valves - Soft Seat High Performance Butterfly Valves - AIV, Inc. Master Wholesale Distributor of Industrial Valves

Flowseal Soft Seat Valves - Overview

The Flowseal Soft Seat valve provides a bi-directional bubble tight shutoff (zero leakage) by the use of a patented seat. This unique seat design creates a self-energized seal in vacuum-to-low pressure applications.

Under higher pressure conditions, the seat is also designed to permit, confine and direct movement of the soft seat against the the disc edge, up to the full ANSI Class 150, 300 and 600 Cold working Pressures.

The Soft Seat is designed for high services with minimal wear and low torque. Seat replacement is a simple operation, requiring no special tools.

Sizes 2" - 48"
Wafer Body and Lug Body Styles
Available in ANSI Class 150, Class 300 and Class 600
Electric Actuators, Pneumatic Actuators, or
Gear Actuators and Manual Operators Available

Click to view Flowseal Soft Seat brochure in pdf format. Requires Acrobat Reader 4.0 or greater.

End Seal Variation

ANSI 150 14" through 24" sizes feature a two-piece shaft design. The lower shaft utilizes an end seal in the body to prevent external leakage. The component parts include an end seal, and end cap and end cap bolts.

Lower Packing Variation

The ANSI 150 30" through 48", ANSI 300 14" through 30", ANSI 600 10" through 16" sizes feature a two-piece shaft design which utilizes a lower packing seal in the valve body to prevent external leakage. The component parts are of the same design used in the packing assembly in the top of the valve body neck.