Sanitary Compounded Butterfly Valve Sealing Ring | Sansheng Fluorine
| Material: | PTFE+EPDM | Media: | Water,Oil,Gas,Base,oil And Acid |
|---|---|---|---|
| Port Size: | DN50-DN600 | Application: | High Temperature Conditions |
| Product Name: | Wafer Type Centerline Soft Sealing Butterfly Valve,pneumatic Wafer Butterfly Valve | Connection: | Wafer,Flange Ends |
| Valve Type: | Butterfly Valve,Lug Type Double Half Shaft Butterfly Valve Without Pin | ||
| High Light: |
seat butterfly valve, ptfe seat ball valve |
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Black/ Green PTFE/ FPM +EPDM Rubber Valve Seat for Butterfly Valve Seat
PTFE + EPDM compounded rubber valve seats produced by SML are widely used in textile, power station, petrochemical, heating and refrigeration, pharmaceutical, shipbuilding, metallurgy, light industry, environmental protection and other fields.
Product performance: high temperature resistance, good acid and alkali resistance and oil resistance; with good rebound resilience, sturdy and durable without leaking.
PTFE+EPDM
The Teflon (PTFE) liner overlays EPDM which is bonded to a rigid phenolic ring on the outside seat perimeter. The PTFE extends over the seat faces and outsides flange seal diameter, completely covering the EPDM elastomer layer of the seat, which provides the resilience for sealing valve stems and the closed disc.
Temperature range: -10°C to 150°C.
Virgin PTFE (Polytetrafluoroethylene)
PTFE (Teflon) is a fluorocarbon based polymer and typically is the most chemically resistant of all plastics, while retaining excellent thermal and electrical insulation properties. PTFE also has a low coefficient of friction so it is ideal for many low torque applications.
This material is non-contaminating and accepted by the FDA for food applications. Although the mechanical properties of PTFE is low, comparing to other engineered plastics, its properties remain useful over a wide temperature range.
Temperature range: -38°C to +230°C.
Color: white
Torque adder: 0%
Heat / Cold Resistance of different rubbers
| Rubber Name | Short Name | Heat Resistance ℃ | Cold Resistance ℃ |
| Natural Rubber | NR | 100 | -50 |
| Nitrle Rubber | NBR | 120 | -20 |
| Polychloroprene | CR | 120 | -55 |
| Styrene Butadiene copolyme | SBR | 100 | -60 |
| Silicone Rubber | SI | 250 | -120 |
| Fluororubber | FKM/FPM | 250 | -20 |
| Polysulfide Rubber | PS / T | 80 | -40 |
| Vamac(Ethylene/Acrylic) | EPDM | 150 | -60 |
| Butyl Rubber | IIR | 150 | -55 |
| Polypropylene Rubber | ACM | 160 | -30 |
| Hypalon. Polyethylene | CSM | 150 | -60 |
Constructed from a robust combination of PTFE (polytetrafluoroethylene) and EPDM (ethylene propylene diene monomer rubber), this sealing ring guarantees unparalleled performance. The PTFE component ensures a slick, chemical-resistant surface ideal for maintaining purity and preventing contamination, especially in sanitary applications. Conversely, the addition of EPDM boosts the sealing ring's resilience against temperature variations and harsh chemicals, ensuring a tight seal and extended service life even under high-temperature conditions. Our Sanitary Compounded Butterfly Valve Sealing Ring is meticulously designed to fit a wide range of valve sizes, from DN50 to DN600, making it a versatile choice for various applications. Whether it's water, oil, gas, base oil, or even aggressive acid environments, this sealing solution rises to the challenge. The wafer and flange end connections, coupled with its compatibility with both pneumatic wafer butterfly valves and lug-type double-half shaft butterfly valves without pins, render installation and maintenance straightforward and hassle-free. Enhanced by its high-performance under extreme conditions, this product is an indispensable asset for industries aiming for operational efficiency and reliability.