PTFE diaphragm

PTFE diaphragm

PTFE diaphragm

Product catalog summary
Introduction
PTFE diaphragms are essential components in chemical processing, air-operated pumps, diaphragm valves, and handling corrosive media. They serve as critical seals between media or pressure zones, offering advantages over traditional seals by eliminating drag leakage and requiring lower tolerances and surface finishes, thus enhancing system reliability.

Material and Design Requirements
Flexibility and long service life are primary demands for diaphragm materials and design. Optimal performance requires precise tailoring of diaphragm design and compound selection to specific application conditions. With over 19 years of expertise, the company provides diaphragms with excellent chemical resistance, superior flexibility, and durable service life, customized to meet unique requirements.

Advantages of PTFE Diaphragms
PTFE diaphragms offer excellent chemical resistance, superior flex fatigue resistance, a wide operating temperature range (-180°C to +260°C), and are available in food and medical grade options. Custom designs and fast prototyping are also available.

Applications in AODD Pumps
In air-operated double diaphragm (AODD) pumps, PTFE diaphragms act as flexible barriers separating the pneumatic drive from the liquid. They are ideal for chemically aggressive, high-temperature, or contamination-sensitive environments due to their outstanding chemical resistance and thermal stability.

Applications in Diaphragm Valves
In diaphragm valves, PTFE diaphragms serve as critical sealing elements that isolate process media from the valve actuator, ensuring zero leakage and preventing contamination. They offer exceptional chemical inertness and thermal resistance, making them suitable for demanding applications involving aggressive fluids or strict purity requirements.

Construction and Fittings
Diaphragm structure varies based on valve function, with options for open-molded and closed-molded designs. Various diaphragm fittings are available to meet specific installation requirements, including threaded pin and bayonet fittings.

Approvals
The PTFE material complies with FDA CFR21 Part 177.1550, EC Regulations 10/2011, GB4806.7, and USP Class VI Chapters <87> and <88> at +121°C.

Contact Information
For further inquiries, contact Laura Liu, Sales Engineer, at [email protected] or via phone at 008613828762290.
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Catalog excerpts

PTFE diaphragm-1

PTFE Diaphragm PTFE隔膜 Shenzhen Dechengwang Technology Co., Ltd Dytron Advanced Materials Co.,Ltd 中国 CHINA ● 广

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PTFE diaphragm-2

PTFE Diaphragms In chemical processing, air-operated pumps, diaphragm valves, and corrosive media handling, diaphragms act as critical seals between media or pressure zones. Unlike seals elements, diaphragms have no drag leakage at contacting surfaces and demand lower tolerances and surface finishes, greatly enhancing system reliability. PTFE Diaphragms – Engineered for Extreme Media and Precision Applications 在化工、气动泵、隔膜阀及高腐蚀介质输送领域,隔膜作为两种介质或压力区间的密封 屏障,承担着关键作用。 与传统密封件不同,隔膜无接触面拖曳泄漏,对公差和表面质量要求更低,极大提升设 备可靠性。 Flexibility and long service life are the primary demands placed on diaphragm materials and...

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PTFE diaphragm-3

Why Choose Our PTFE Diaphragms? V Excellent Chemical Resistance Resists aggressive acids, alkalis, and solvents. yf Superior Flex Fatigue Resistance Designed for long service life, even under demanding cycling conditions. V Wide Operating Temperature Range Performs reliably from -180° C to +260° C. V Food Grade & Medical Grade Options Available upon request (FDA, USP Class VI compliant). V Custom Designs & Fast Prototyping We offer standard PTFE diaphragms, and also support custom sizes, shapes which use for diaphragm pumps and valves. Fluoropolymer Solution Expert Page 2 of 7

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PTFE diaphragm-4

Typical Applications- PTFE Diaphragms for AODD Pumps Application of PTFE Diaphragms in AODD Pumps In air-operated double diaphragm (AODD) pumps, the diaphragm serves as a flexible barrier separating the pneumatic drive from the liquid being pumped. It moves back and forth to draw in and discharge fluid during operation. PTFE is widely used for diaphragms in chemically aggressive, high-temperature, or contaminationsensitive environments due to its outstanding chemical resistance, thermal stability up to 260°C (500°F), and non-contaminating nature. Compared to conventional elastomeric materials...

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PTFE diaphragm-5

We offer flexible customization—if your specification is not shown, we can manufacture to your exact size and requirements. Fluoropolymer Solution Expert Page 4 of 7

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PTFE diaphragm-6

Typical Applications- PTFE Diaphragms for Diaphragm Valves Application of PTFE Diaphragms in Diaphragm Valves In diaphragm valves, the diaphragm serves as a critical sealing element that isolates the process media from the valve actuator, ensuring zero leakage and preventing contamination. PTFE diaphragms offer exceptional chemical inertness and thermal resistance, making them ideal for demanding applications involving aggressive fluids or strict purity requirements. Compared to elastomer-based diaphragms, PTFE provides superior aging resistance and long-term stability under harsh conditions....

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PTFE diaphragm-7

Typical Applications- PTFE Diaphragms for Diaphragm Valves CONSTRUCTION – OPEN & CLOSED MOLDED DESIGNS Diaphragm structure varies based on valve function—whether normally open or normally closed. Dytron offers full manufacturing capabilities for both open-molded and closed-molded diaphragm designs to meet diverse application needs. DIAPHRAGM FITTINGS Dytron also provides various diaphragm fittings to meet specific installation requirements. Common types include: 结构形式 – 开模与闭模设计 • Threaded Pin – A standard screw-in fitting for secure attachment to the actuator. • Bayonet Fitting – Allows for a...

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PTFE diaphragm-8

: Vv AtwmlXIDYTRONI Our PTFE material is FDA compliant to 21CFR part 177.1550, has been third party tested to USP Class VI <87>, <88>, Complies with EC Regulations 10/201, GB4806.7 Fluoropolymer Solution Expert

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PTFE diaphragm-9

Sales engineer [email protected] Phone: 008613828762290 WhatsApp: 008618107210745 Website: www.ptfedf.com

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.