High-Quality PTFE+EPDM Butterfly Valve Sealing Ring - Sansheng
| 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 |
Crafted from a robust blend of PTFE (Polytetrafluoroethylene) and EPDM (Ethylene Propylene Diene Monomer), this sealing ring is engineered to provide unsurpassed performance in environments where exposure to a wide range of media such as water, oil, gas, base oils, and even harsh acids is a challenge. The inherent chemical resistance of PTFE combined with the superior resilience and thermal stability of EPDM makes this sealing ring a universally applicable solution, ensuring a hermetic seal that maintains its integrity even under high-temperature conditions typically encountered in industrial applications. This sealing ring is designed for ease of integration across a variety of butterfly valve types including wafer, flange ends, lug type, and double half shaft butterfly valves without pins, covering port sizes ranging from DN50 to DN600. Beyond its versatile application scope, this product encapsulates Sansheng's dedication to delivering components that elevate the operational efficiency, safety, and longevity of fluid control systems. Whether you're operating within the confines of textile manufacturing, navigating the complexities of a power station, or ensuring the stringent standards of pharmaceutical production are met, the PTFE+EPDM Butterfly Valve Sealing Ring from Sansheng Fluorine Plastics is key to achieving seamless process control and operational excellence.