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PTFE Lined Diaphragm Valve
Zhejiang, ChinaNaifulong Group Co., Ltd.
PTFE Lined Diaphragm Valve
US$10.00-5,000.00
1 Set
Product profile
Customization
AvailableMedia
AcidTemperature
Ordinary TemperatureModel NO.
customActuator
ManualConnection
Flanged Diaphragm ValveMaterial
Stainless SteelStructure
Roof Type Diaphragm ValvePressure
Low PressureFlow Direction
BidirectionalUsage
Emptying, DrainStandard
GB, ANSIBody,Bonnet,Disc
Ht250, Wcb, CF8Stem
35, 1Cr13, 1cr18ni19Lining
FEP(F46) PCTFE(F3), PTFE(F4)PoDiaphragm
PTFE(F46)/CrNut
45, 0Cr18Ni9Handwheel
Ht200, WccTransport Package
Wooden CaseSpecification
CustomizableTrademark
OEMOrigin
ChinaKey features
Diaphragm valve is a special type of valve with cutoff function.
Its disc is composed of a diaphragm made of steel disc and soft materials(rubber and fluoroplastic composite),and separate the body inner cavity from the bonnet inner cavity.
When the handwheel is operated clockwise,the stem will move downward,and the disc will drive the diaphragm downward to cut off the passage,otherwise,the valve will open.
The composite membrane separates the lower inner cavity of the body from the inner cavity of the bonnet,and forms a DC channel with it,completely isolating the the stem,disc and other internals
The membrane made of FEP(Teflon) fluoroplastics and synthetic rubber and the valve with a (Teflon) fluoroplastic lining layer can be used for various highly corrosive medium.
As actuator,the diaphragm is prone to fatigue fracture due to frequent opening and closing.Therefore,it should be tested for working conditions,media,and characteristics,and replaced regularly.
Design Specification:Comply with HG/T 3704. GB/T 12224. ASME B16.34.
Drive mode :Manual, Pneumatic (normally open or normally closed ).Electric.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 18 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.75h
AI-Powered supplier vetting
SummaryThe supplier is a national high-tech enterprise with extensive patents and export experience, although it lacks certain logistical capabilities like overseas warehouses and in-stock services. It holds multiple ISO certifications, indicating a commitment to quality and sustainability, and has a reliable financial profile over recent years. The supplier is actively involved in product innovation, offering ODM and OEM services, but does not provide SDKs. Despite a lack of overseas service branches, it participates in international trade shows and has a robust production process with multiple facilities and quality control inspectors.
Supplier typeThe supplier is a national high-tech enterprise involved in manufacturing various equipment and components, exporting 51%-70% of its products.
CertificationsThe supplier holds ISO9001:2015, ISO45001:2018, and ISO14001 certifications, demonstrating adherence to quality and environmental standards.
After-Sales capabilityThe supplier lacks overseas warehouses and service capabilities, but it is close to major ports for distribution.
Financial creditThe supplier has maintained consistent financial capacity and cash flow over the past three years, indicating financial stability.
R&D capabilityThe supplier has introduced new products and offers ODM and OEM services, though it lacks SDK availability.
Production capacityThe supplier has a comprehensive production setup with facilities like CNC machining and welding, supported by a valid subcontractor network.
Customization capabilityThe supplier can customize products from samples and provides both ODM and OEM services.
Client casesSupplier participates in international trade shows such as the Russian PVC Exhibition, indicating active engagement with global markets.
Product Q&A
Q:What is the operating temperature range for fluorine-lined diaphragm valves?
A:
Working temperature for F46(FEP) lined:-20~150,continuous service <=120.PFA lining up to 180.Do not exceed temperature limit,fluoroplastic will creep and blister.
Q:Can it work under negative pressure / vacuum conditions?
A:
Standard G41F46 is NOT for high vacuum.For negative pressure/vacuum,please select vacuum-type with PFA lining & reinforced diaphragm,avoid lining collapsing.
Q:What is the typical service life of the diaphragm?
A:
Diaphragm is wearing part.Normal service life 30,000-50,000 cycles.Under high-frequency high-temp/heavy corrosion,inspect & replace every 1-2 years.Spare diaphragm available.
Q:Can fluorine-lined diaphragm valves be used for flow regulation?
A:
Mainly for ON-OFF cut-off service.NOT recommended for long-term throttling at partial open position,diaphragm will get fatigue damage.Short-time throttling is acceptable.
Q:What media are not suitable for F46-lined valves?
A:
Resist most strong acid, alkali, oxidant & solvent. NOT suitable for molten alkali metal, elemental fluorine.
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