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Stainless steel pneumatic head fluorine-lined diaphragm valve

    Stainless steel pneumatic head fluorine-lined diaphragm valve

    The Stainless Steel Pneumatic Head Fluorine-Lined Diaphragm Valve is engineered for superior performance in aggressive, corrosive fluid handling applications. Featuring a robust stainless steel body and a fluorine lining (e.g., PTFE or PFA), this valve offers exceptional resistance to chemicals, acids, and solvents, ensuring long-lasting durability in harsh environments. The pneumatic head provides quick, precise control for automated systems, making it ideal for industries such as chemical processing, pharmaceuticals, and water treatment. The diaphragm design ensures a tight seal, preventing...
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A stainless steel pneumatic head fluorine-lined diaphragm valve is a type of valve that is mainly composed of stainless steel and fluoroplastic (fluorine-lined). This valve has excellent corrosion resistance and good sealing performance, so it is widely used in pipeline systems in chemical, pharmaceutical, petroleum and other industries.

The working principle of a stainless steel pneumatic head fluorine-lined diaphragm valve is to use the diaphragm plate to move up and down in the valve body to control the on/off of the fluid. Due to the presence of fluorine-lined layer, the valve has good corrosion resistance and can effectively prevent the erosion of various chemical media. At the same time, due to the application of the pneumatic head, the valve can be controlled remotely, which is convenient for operation and management.


The advantages of stainless steel pneumatic head fluorine-lined diaphragm valves include:

A. Strong corrosion resistance: Due to the presence of a fluorine-lined layer, the valve can resist the erosion of various chemical media, thereby extending the service life of the valve.

B. Good sealing: The seal between the diaphragm and the valve body is a combination of metal and fluoroplastic, which has good sealing performance and can effectively prevent leakage. 

C. Easy to operate: The valve can be controlled remotely through the pneumatic head, which is convenient for operation and management.

D. Wide range of applications: Due to its excellent corrosion resistance and sealing properties, stainless steel pneumatic head fluorine diaphragm valves are widely used in various industries and fields.

The stainless steel pneumatic head fluorine-lined diaphragm valve is a high-performance valve with excellent corrosion resistance and sealing properties, which can meet the fluid control needs in various complex environments.


Technical Scope

  • Temperature range: 0°C~150°C.

  • Working pressure: vacuum ~16Mpa (20°C)

  • Applicable fluids: can convey extremely strong chemically corrosive media, can withstand high temperature, vacuum resistance, wear resistance, and can be anti-static.

  • Application field: used in injections, vaccines, food hygiene, beverages, pharmaceuticals, chemical chemicals, biology, lithium batteries, semiconductor engineering and other industries.

  • Compliant with standards: Meets FDA and USP certifications.

Fluorine-lined valves, also known as fluoroplastic-lined corrosion-resistant valves, are made of PTFE or PFA (or profiles processed) by molding (or inlaying) on the inner wall of steel or iron valve pressure bearings (the same method is applicable to the lining of various pressure vessels and pipeline accessories) or the outer surface of valve linings, and using its unique properties in strong corrosion resistance media to make various valves and pressure vessels.
 

Fluorine-lined valves can use lining process for all the places that can be reached by the medium in the valve body, and the lining materials are generally made of fluoroplastics such as FEP (F46) and PCTFE (F3), which can be applied to various concentrations of sulfuric acid, hydrochloric acid, hydrofluoric acid, aqua regia and various organic acids, strong acids, strong oxidants and other corrosive media and other pipelines. However, fluorine-lined valves are limited by temperature, only suitable for mediums between -50°C~150°C, please consult our customer service for details.

Valves that can be made lined with fluorine plastics include: fluorine-lined butterfly valves,Fluorine-lined ball valves, fluorine-lined globe valve,Fluorine-lined diaphragm valves, fluorine-lined gate valves, fluorine-lined plug valves,Fluorine-lined pipe fittings、Fluorine-lined jointsetc., and accessories include (electric, pneumatic, electromagnetic, explosion-proof, filtering, adjustment, remote automatic control and other functions).



Properties of PTFE-polytetrafluoroethylene
High temperature resistanceThe operating temperature is up to 250°C
Resistant to low temperaturesIt has good mechanical toughness and maintains an elongation of 5% even when the temperature drops to -196°C
It is non-toxicIt has physiological inertness and has no adverse reactions as artificial blood vessels and organs implanted in the body for a long time
Mechanical propertiesIt is the smallest surface tension in solid materials, does not adhere to any substance, and its friction coefficient is extremely small, only 1/5 of polyethylene, which is an important feature of perfluorocarbon surfaces. Because the intermolecular force of the fluorocarbon-carbon chain is extremely low, PTFE is non-stick
Excellent insulation performanceA thick layer of newspaper film is enough to resist 1500V high voltage,
Chemical and weather resistanceTeflon is virtually immune to any chemical agents except molten alkali metals. For example, when boiled in concentrated sulfuric acid, nitric acid, hydrochloric acid, or even aqua regia, its weight and properties do not change, and it is almost insoluble in all solvents, and is only slightly soluble in perankanes (about 0.1g/100g) above 300°C.
Excellent weather resistanceIt does not absorb moisture, is non-combustible, is extremely stable to oxygen and ultraviolet rays, and has the best aging life among plastics
Electrical performanceTeflon has low dielectric constant and dielectric loss over a wide frequency range, as well as high breakdown voltage, volumetric resistivity, and arc resistance




Model representation method
WH-600—Q1—C1—F—16—P—25—D1—B—W2—B2—L
>1. Weiheng brand>2. Drive mode>3. Valve body type>4. Connection method>5. Sealing material>6. Nominal pressure>7. Valve body material>8. Nominal diameter>9. Control mode>10. Explosion-proof level—20~150℃>12. Accessory options>13. Three flows
1~7 mandatory options, 8~13 optional




1 codename
5 codenameSealed material10 codeExplosion-proof rating
WHWeiheng brandFPTFEBExdIl BT4 Gb explosionproof and explosion-proof type


PPLPara-polyphenyleneBZExdllCT5 Gb explosion-proof and explosion-proof type
2 codenameDrive modeHMetal hard sealBCExdll CT6 Gb explosionproof and explosion-proof type
600Pneumatic actuator seriesYcemented carbideBMExmbllT4 Gb cast explosion-proof type
900Electric actuator systemX1Ding Qing rubber NBRBAExiall CT6Ga intrinsically safe and explosion-proof
2001Column plastic actuator angle seat valve seriesX2Natural rubber NR

2002Stainless steel actuator angle seat valve seriesX3EPDM11 codenamesMedium temperature


X4Viton rubber FPMW1-20-80C
3 codenameBody typeX5Food grade silicone rubber SIW2-20-150C
Q1Two-way valveF46Fully lined polyperfluoroethylene FEPW3-20-250C
Q2Three-way valvePFAFully lined with soluble PTFE PFAW4-29-425C
Q3Four-way valveF4Fully lined PTFEW5-29-650C
Q4Stationary ball valveNnylonW6-196-60C
Q5V-ballTCLined ceramic............
Q6Low profile ball valveJRubber liningIt has a special temperature that can be designed and manufactured according to customer requirements
Q7Sanitary grade ball valvesPEEKPolyether ether ketone

Q8Plastic ball valvesWWhen the ring12 codenamesAccessory selection
Q9High vacuum ball valve............B12-position, 3-way solenoid valve
Q10Fluorine ball valve in the whole villageOther special sealing materials can be designed and manufactured according to customer requirementsB22-position 5-way solenoid valve
Q11Cryogenic ball valves

B32-position 3-way explosion-proof solenoid valve
Q12Insulated ball valve6 codenameNominal pressureB42-position 5-way explosion-proof solenoid valve
Q13Eccentric hemispherical valve............B5Filter pressure reducing valve
Q14Tank bottom valve

B6Limit switch
Q15Ceramic ball valves7 codenameBody materialB7Explosion-proof limit switch
D1Centerline soft-sealed butterfly valveQDuctile iron HT200B8Hand manipulation mechanism
D23. Eccentric butterfly valveCcarbon steelB9Locator
D3Sanitary butterfly valvePStainless steel 304............
D4Plastic butterfly valveRStainless steel 316

D5Ventilation butterfly valvePLStainless steel 304L13 codenamesThree flows
D6Fluorine butterfly valve in the whole villageRLStainless steel 316LLTee L-type BC switching
D7High vacuum butterfly valveUPVC UPVCT1Tee T-type C-port switch
D8Powder butterfly valvePPReinforced polypropylene RPPT2Tee T-type AB switching
Z1Gate valveLAluminum alloyT3Tee T-type AC switching
Z2Knife gate valve............T4Tee T-type B-port switch
J1Globe valveOther special valve body materials can be designed and manufactured according to customer requirements

J2Bellows cut stop valve



J3Angle seat valve8 codenameIt is called the path

F1Upward expansion discharge valve............

F2Downward discharge valve



Other special valve body materials can be designed and manufactured according to customer requirements9 codeControl mode



ZStandard switch type

4 codenamesConnectionT1Integral switching type

C1Female threadT2Overall adjustment

C2By orderT3RS485 bus type

C3Male threadD1Double acting

C4flangeD2Double-acting adjustment type

C5KF vacuum chuckE1Uni-acting normally closed

C6weldE2Single-acting normally closed regulation type

C7Pair clipE3Single-acting and always open

C8ClampsE4Single-acting normally open adjustment type


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