Introducing the innovative and versatile PTFE Lined Butterfly Valve – a high-quality solution for fluid, switch, and modulating controls, even in the most corrosive environments. Designed for resilience and outstanding performance, our lined pfa butterfly valve is manufactured with top-grade materials and offers a robust, leak-free sealing mechanism.
With its wide-ranging compatibility with various liners such as PTFE, EPDM, NBR, FPM, and PU, the lined wafer butterfly valve meets the requirements of diverse industries. Additionally, the valve can be equipped with your choice of pneumatic or electric actuator for actuation flexibility.
*Dimensions, weight, pressure ratings, and temperature ranges will vary based on specific valve models.
Advantages
The Body PTFE Lined Butterfly Valve offers numerous benefits over competing products:
Corrosion-Resistant: The advanced PTFE lining provides excellent resistance against harsh chemicals, including acids, alkalis, and other corrosive media.
Leak-Free Sealing: A reliable and secure sealing mechanism prevents leakage and ensures top functionality.
Low Maintenance: High-quality materials and expert engineering reduce the need for frequent maintenance, saving you time and money.
Customization: We offer different material and configuration options to meet your unique requirements.
Applications
The Pfa Lined Butterfly Valves expertly handles a variety of chemical and process industries, including:
Chemical processing
Petrochemicals
Water treatment
Food and beverage
Pharmaceuticals
Due to its corrosion-resistant properties, the valve is well-suited for managing various fluids, including acids, alkalis, and other corrosive media.
Lined wafer butterfly valve is split body designed for a wide variety of liners such as PTFE, EPDM, NBR, FPM, PU to fit a wide range of applications.
PTFE is the preferred material for corrosive applications in chemical industry.
PU is the preferred material for abrasive applications.
EPDM is the preferred rubber for water industries.
NBR is the preferred rubber for oil transportation.
FPM is the preferred rubber for wide range of medium composition and temperature.
Wafer design makes the valve convenient for connection between flanges and save length in pipe line.
FEATURES
ISO5211 direct mounting pad for easy automation
Isolation height according to plant prescription
Dirtscraper prevents moisture penetrating into the shaft area
Three PTFE impregnated SS316L bearings are provided for precision alignment of the disc-shaft
3 layers sealing system ensures environment protection
PTFE seat and rubber seat version interchangeable each other• PTFE-liner for chemically toxic and highly corrosive media, rubber liner for various of industry applications
Silicon rubber energized back behind PTFE seat makes the sealing between liner and disc stable and offer a wide range of temperature
One-piece disc-shaft design reduces the valve torque and increases Kv
PTFE or rubber lined disc design option avoids high cost by expensive metal in corrosive applications
Bubble-tight shut of at full pressure rating
Can be disassembled, material-specific recycling possible
Wave shape flange face design ensures the flange sealing of seat face not damaged by flange pressing, also avoids shrink of seat inside diameter because of flange pressing
PARTS LIST AND MATERIAL SPECIFICATION
No.
Part name
Material
1
Body
GGG40
2
Disc/shaft one piece
CF8M
1.4462
CF8M FEP lined
CF8 EPDM lined
3
Seat
PTFE,FPM,EPDM,PU,NBR
PTFE
EPDM
4
Seat Energizer
SR
5
Weather seal
NBR
6
Bearing
PTFE impregnated SS316L
7
Gland
PTFE
8
Screw
SS304
9
Belleville washer
SS304
10
Stuffing collar
SS316
11
O ring
FPM
12
V ring
PTFE
TECHNICAL DATA
Body style
wafer
Nominal diameter
2″ – 24″ (DN50mm – DN600mm)
Top flange
ISO5211
Operating pressure
16bar for DN50-DN200, 10bar for DN250-DN600
Temperature range
-20 °C to + 180 °C (depending on pressure, medium and material)
Flange accommodation
EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN10/ PN16 JIS 5K/10K
Operation
Hand lever, gear box, pneumatic actuator, electric actuator
