Leading Butterfly Valve Manufacturer RSF VALVE supplies PTFE lined butterfly valve for chemical duties with a proven record of excellent performance and long life in heavy duty applications. Our PTFE lined butterfly valve come in wafer type butterfly valve or lug type butterfly valve. Our PTFE lined butterfly valve is one kind of oil and gas industry valves. Our PTFE lined butterfly valve types are widely used in Chemical industry and Pharmacy Industry.
- 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 parts polyester coated body provides a tough and durable coating against corrosion.
- All 316 stainless steel discs of our PTFE lined butterfly valve 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.
- Our PTFE lined wafer type butterfly valve 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.
Standard:
Basic Design: EN593, API609, AWWA C504
Face to Face: ISO5752 EN558, API 609
Connecting Ends: EN1092-2, ASME B16.5, ASME B16.47 A
Test: EN12266-1, API 598
Design Feature:
Wafer or LUG Connecting
Central Line, 1pc or 2pcs Split BODY
Bi-Directional
Less Friction, Low Torque, Less Wear
Cartridge Seat
Thin Profile Disc
ISO mounting and Shaft
Size Range: DN50 (2") to DN600(24")
Pressure Class: PN10, PN16, Class 125, Class150, 150PSI, 200PSI
Material:
Body: Ductile Iron GGG50, GGG40, CF8, CF8M, ASTM A536
Disc: Stainless Steel CF8 CF8M (with or without PTFE Capsuled)
Shaft: SS416, SS431, F304, F316
Seat: PTFE
Operation:
Lever, Gear Box, Pneumatic Actuator
Optional:
FDA Certified PTFE
Thanks for your selection of RSF’s PTFE lined wafer type of butterfly valve and lug type butterfly valve! If you have any inquiries of our oil and gas industry valves of PTFE lined concentric butterfly valve or triple offset butterfly valve, please don’t hesitate to call us or email us!
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