China PTFE Lined Disc & Seat Wafer Butterfly Valve Manufacturers, Factories

PTFE lined disc and seat wafer butterfly valve, has good anti-corrosion performance,  usually lined with materials PTFE, and PFA, which can be used in the more corrosive media, with long service life.

Product Description

Butterfly Valve
Butterfly Valve
Butterfly Valve
Butterfly Valve
Butterfly Valve
Butterfly Valve
Butterfly Valve
Butterfly Valve
Butterfly Valve
Size & Pressure Rating & Standard
Size DN40-DN600
Pressure Rating PN10, PN16, CL150, JIS 5K, JIS 10K
Face to Face STD API609, BS5155, DIN3202, ISO5752
Connection STD PN6, PN10, PN16, PN25, 150LB, JIS5K, 10K, 16K, GOST33259
Upper Flange STD ISO 5211
Material
Body Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy.
Disc DI+Ni, Carbon Steel(WCB A216) coated with PTFE
Stem/Shaft SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel
Seat PTFE/RPTFE
Bushing PTFE, Bronze
O Ring NBR, EPDM, FKM
Actuator Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator
Valve Detail
Valve Component
Difference between PTFE Seat of PTFE iner:

The PTFE valve seat is wrapped on the hard rubber backing and directly formed into the overall structure of the valve seat. Installed in the valve body to provide sealing performance. PTFE lining is a layer of PTFE that is applied to the inside of the valve body, including the end faces where it connects to the pipe.

Applications & Performance

PTFE-lined Disc and PTFE seat butterfly valves are widely used in chemical, pharmaceutical, power generation and other industries. These valves are specifically designed to control the flow of corrosive fluids.

The PTFE lining inside the valve offers excellent corrosion and high temperature resistance, making it ideal for a variety of industrial applications. The wafer style design of these butterfly valves makes them lightweight and easy to install between flanges.

PTFE seat wafer butterfly valves are known for their durability and low maintenance requirements. The valve's disc design reduces turbulence and enables high flow rates, making it a cost-effective solution for industrial applications. The compact design of these valves facilitates installation in industrial environments and saves valuable space.

Butterfly Valve Overview
Frequently Asked Questions
What are the primary applications of PTFE-lined butterfly valves?
They are widely utilized in industries dealing with highly corrosive fluids, such as chemical processing, pharmaceutical manufacturing, and power generation.
What sizes and pressure ratings are available for this valve?
The valves range from DN40 to DN600 and support pressure ratings including PN10, PN16, CL150, JIS 5K, and JIS 10K.
What is the difference between a PTFE seat and a PTFE lining?
A PTFE seat is formed directly onto a hard rubber backing to provide targeted sealing performance, whereas a PTFE lining covers the entire internal body surface and flange connection faces to protect against harsh chemical corrosion.
What actuation methods can be installed on these butterfly valves?
Actuation options include manual hand levers, gearboxes, pneumatic actuators, and electric actuators, compliant with ISO 5211 mounting standards.
Why choose a wafer-style design for industrial applications?
Wafer-style designs are lightweight, compact, easy to install between existing flanges, and save valuable space in tight industrial piping layouts while maintaining high flow capacity.

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