Valves

Flow Line Butterfly Valves 

Offering an extensive line of Butterfly Valves ranging from resilient seated 1" to 84", PTFE seated 1" to 24", high performance 2" to 24". An extended variety of valve trims designates the Flow Line inventory to be the most versatile butterfly valve inventory on the market. ISO 5211 mounting is standard throughout the product line. 

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FlowLine Valve Series 70S

• The Series 70S Wafer style is a heavy-duty cartridge seated butterfly valve compatible with ANSI 125/150 weld-neck, slip-on, and threaded flange standards. 2” – 12” valves are fully rated to 200 psi, bi-directional , dead-end service. Valves with undercut discs to 50 psi are also available through the size range. All series 705 vales, regardless of the rated working pressure, are vacuum rated to 29.29” of Mercury Gauge (0 Micron).

• Available Sizes: 2"- 12"

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FlowLine Valve Series 70/71 Wafer & Lug Style

• Cartridge seated butterfly valves

• Available Sizes: 1"- 12" & 14"- 24"

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FlowLine Valves Series 70W

• ​The Series 70W Wafer Style Butterfly Valve is a purpose-built valve made for harsh and demanding working environments. It incorporates a standard body material of ductile iron, shortened-neck, and 30% larger shaft diameter. The Series 70W will mount between ANSI 125/150 slip-on, weld-neck, screwed-end, and TTMA light weight flanges. All valves are bi-directionally tested to 200 psi. The top mounting plate and upper shaft connection interchanges with other existing valve manufacturers.

• Available Sizes: 2"- 12"

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FlowLine Valve 72/73 Series

• One piece wafer and lugged body for strength and stability in extreme environments.

• Heavy duty top plate is drilled and slotted to ISO 5211 and other existing valve drillings, thus allowing ease of automation and interchangeability.

• Two part polyester coated body provides a tough and durable coating against corrosion.

• All 316 stainless steel discs are polished to a mirror finish.

• Discs have a streamlined design, providing higher Cv and lower pressure drop.

• Oversized shafts allow for greater strength and thus more stability to the disc.

• A high strength machined Double D connection ensures a positive shaft-to-disc connection.

• PTFE and elastomer are both vulcanized to a rigid phenolic ring. This cartridge seat provides a stable platform, eliminating movement of the PTFE and elastomer.

• Torque fluctuation is eliminated by the consistent conformity of the seat, provided for by the cartridge design.

• Cartridge design allows for full field replacement.

• The Flow Line shaft seal is achieved through a continuous pressure exerted from the flatted area of the seat to the machined flatted area of the disc.

• The raised flatted area of the seat corresponds precisely with the machined flatted hub area of the disc. These matching flatted surfaces provide a wide sealing area for the elastomer backed PTFE seat to exert pressure against, forming the primary seal.

• Secondary sealing is provided by a 360° machined radius on the flatted hub.

• Available Sizes: 1"- 24"

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Direct replacement and interchangeable with Demco style butterfly valves. 

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Actuated valves are also available through this product line. 

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Each valve is pressure tested prior to shipping.