Extended Stem Lined PTFE Worm Gear Flange Butterfly Valve
Full fluoroplastic lining delivers superior corrosion resistance and zero-leakage sealing performance; Customizable extended stem length for remote operation on buried or underground pipelines; Midline design creates low flow resistance with light opening/closing torque, worm gear mechanism saves operation effort; Flange connection ensures stable installation, compact structure, abrasion resistance and long service life; Wide nominal diameter range, universal for wastewater, chemical and pickling anti-corrosion pipelines.
  • Nominal Diameter: DN50~DN2000
  • Pressure Class: PN6~PN16
  • Temperature Range: -20℃~150℃ (F46 Lining)
  • Operation Type: Manual Worm Gear with Extended Stem
  • Main Materials: WCB Cast Iron / Cast Steel Body, Disc Lined with F46 Fluoroplastic, Stainless Steel Stem
  • Execution Standards:
  • Design & Manufacturing: GB/T12238; Face-to-Face Dimension
  • Applicable Media: Hydrochloric acid, sulfuric acid, nitric acid, aqua regia, various strong acids & alkalis, salt solutions, chlorine-containing corrosive media
  • Description:
  • Midline butterfly valve with extended stem for underground / pit service, full F46 fluoroplastic lining on valve body and disc. Equipped with worm handwheel for remote operation, ideal for corrosion isolation & shut-off on underground pipelines, pits and tank bottom piping systems.:
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Product Display
Product Display
Easy to open butterfly valve
Efficient regulation of various fluid media
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About Us
Created on
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Since its establishment in 2012,
The company has been operating steadily for over ten years.
Warranty
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Our product comes with a 12-month comprehensive quality assurance.
Service
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We provide professional technical support services 24/7.
Material
Material
PTFE、FEP、PFA、FRPP、PO

development concept

Survival through quality
Seeking market through reputation
Seeking development through technology
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Quality Control
Sustainable Development
Our sustainable path
We are committed to becoming a leader in green manufacturing, with the core goal of "zero carbon valves", and reducing energy consumption and emissions through full lifecycle management. By relying on intelligent IoT technology, we aim to achieve closed-loop optimization of product design, production, and recycling, promoting the industry's transition to a circular economy. In the next five years, we will adopt 100% renewable electricity and collaborate with supply chain partners to establish a carbon footprint transparency system, ensuring that each valve helps customers achieve their ESG goals. At the same time, we will invest in the research and development of biodegradable materials and energy-saving sealing technologies to reduce resource dependence; Through employee training and community collaboration, we aim to enhance the overall environmental awareness of the industry. With innovation as the engine and responsibility as the cornerstone, we promise to make every fluid control a driving force for the sustainable development of the earth, and work together with global partners to create a zero carbon future.
We are committed to becoming a leader in green manufacturing, with the core goal of "zero carbon valves", and reducing energy consumption and emissions through full lifecycle management. By relying on intelligent IoT technology, we aim to achieve closed-loop optimization of product design, production, and recycling, promoting the industry's transition to a circular economy. In the next five years, we will adopt 100% renewable electricity and collaborate with supply chain partners to establish a carbon footprint transparency system, ensuring that each valve helps customers achieve their ESG goals. At the same time, we will invest in the research and development of biodegradable materials and energy-saving sealing technologies to reduce resource dependence; Through employee training and community collaboration, we aim to enhance the overall environmental awareness of the industry. With innovation as the engine and responsibility as the cornerstone, we promise to make every fluid control a driving force for the sustainable development of the earth, and work together with global partners to create a zero carbon future.
Hongfute Valve Group Co., Ltd