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Butterfly valves are named for the wing-like action of the flow-controlling disc, which operates at right angles to the flow. The disc has about the same diameter as the connecting pipe, and the flow is straight through, with a low pressure drop. Maintenance is easy due to the small number of moving parts. The butterfly valve can be used either as an on/off or modulating type of valve. The Type 75 Butterfly Valve is only offered in 18" to 24" sizes. These valves may be operated manually, electrically, or pneumatically.
| Standard model (18" - 24") has polypropylene body, disc and EPDM seat. 403 stainless steel stem has full engagement over the entire length of the disc and is a non-wetted part totally isolated from the media. Bubble-tight seating. Only abrasion-resistant, solid plastic disc and elastomeric liner are wetted parts.
| - Sizes: 18" - 24"
- Models: Wafer style
- Bodies: PP and PVDF
- Discs: PP and PVDF
- Seats: EPDM or FKM. Also: Nitrile, butyl, Hypalon®†, and Neoprene®†
- Seals: EPDM or FKM. Also: Nitrile, butyl, Hypalon®†, and Neoprene®†
- Stems: 403 and 316 stainless steel, titanium, Hastelloy C®‡,etc.
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| - Series 79 Pneumatic
- Series 92 & 94 Electric
- Series 83 Electromni
| Pneumatically and electrically actuated with accessories Lug style (stainless steel 304 and 316) as blocking and end-of-line applications Stems in 316 stainless steel, titanium, Hastelloy C®, etc. 2" square nut on gear Stem extensions (single stem and two-piece stem) Locking device Chain operators Manual limit switch
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| Chemical Processing Water & Wastewater Landfills Irrigation Food Processing Mining
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