DM320-SS-2-TTT-L-040 Flo-Tite 1-1/2" Stainless Steel Direct Mount Ball Valves, Econoflo DM300

The Flo-Tite ECONOFLO Series is designed as a split body, three piece construction, to allow ease of access for maintenance of the valve ball and seat without special tools. This line of valves utilizes the "free floating" ball principle. The ball is not fixed but is free to move with the line pressure. As a result, these valves are capable of tight shut off with the flow in either direction or dead-ended, regardless of the position of the valve in the line. The downstream seat, which is opposite the pressurized side of a closed valve, must carry the load exerted by the line pressure on the ball, while the upstream seat is subject to little load or wear. For this reason, it is sometimes possible to increase useful seat life by turning the valve end to end in the pipeline.

Valve Features:

• 3-Piece Body, Full Port Design
• Threaded or Socket-Weld Ends
• Body: CF8M, 316SS
• PTFE, RTFE or TFM Seats
• 1/4" - 4" Size Range
• 100 PSI MAWP/WOG Pressure Rating
• -20°F to 450°F Temperature Range

Design Advantages:

• ISO 5211 Direct Mounting Pad - Provides for precise shaft alignment & eliminates the need for brackets and couplings.
• Three Piece Swing Out Design for easy maintenance
• Improved Seat Material - Extends cycle life and reduces torque.
• Blow out Proof Stem
• Anti-Static Device - Standard in all sizes
• Locking Device standard for valves with handles
• Adjustable "Live-Loaded" Stem Seal

Stem Seal Design

Flo-Tite's triple stem seal detail provides for an extended valve cycle life. The primary seal is a seal ring that fits firmly on a flat portion of the stem shoulder. The secondary (backup) seal is provided by an O-ring and a set of vee packing rings and is energized by Belleville washers. This design adjusts the packing compression to compensate for wear, pressure, or temperature fluctuations.