Pneumatic Corrosion Proof Control Valve with Lined Plug and Seat for Tight Shutoff

• Customization: Available
• Temperature: Ordinary Temperature
• Certification: GS, CE, ISO9001, TUV
• Media: Gas, Oil, Water
• Standard: API6d/ASME 150lb /JIS/DIN ISO 5211/Hg20592
• Connection Mode: Butt Welding
• Power: Pneumatic
• Material: Plastic
• Type: Single Seater
• Nominal Diameter: 15-800mm
• Size: 180*80*50
• Service: Customizable
• Transport Package: Wooden Case Packaging
• Specification: Stainless steel
• Trademark: YUHONG
• Origin: China
• HS Code: 8481804010
• Production Capacity: 5000pieces/Month
• Package Size: 180.00cm * 90.00cm * 50.00cm
• Package Gross Weight: 100.000kg

Product Description

Product Parameters

 

Product Description

 

NO.1. Unparalleled Corrosion Resistance 
 

1.Comprehensive Protection: A thick layer of fluoroplastic, such as FEP (F46) or PFA, is integrally lined on the surfaces of all internal parts that contact the medium-including the valve body, plug, and seat-achieving complete isolation of the metal components from the corrosive medium.

2.'King of Plastics' Level Corrosion Resistance: PTFE and F46 can resist attack from almost all strong acids, strong alkalis, strong oxidizing agents, organic solvents, and other highly corrosive media, including hydrochloric acid, sulfuric acid, nitric acid, aqua regia, chlorine, bromine water, and more.

3.Extremely Wide Application Range: Solves extreme corrosion problems that ordinary stainless steel or alloy steel valves cannot handle.
 

 

NO.2. Excellent Regulation and Control Performance

1.Precise Control: The pneumatic actuator responds quickly, provides stable output force, and, when paired with a positioner, enables continuous, precise automatic adjustment of parameters like flow and pressure, ensuring high control accuracy.

2.Automation Integration: Can easily receive standard signals (e.g., 4-20mA) from control systems, seamlessly integrating into DCS, PLC, and other automation systems for remote intelligent control.
 

NO.3. Reliable Sealing and Cleanliness
 

1.Dual Sealing: Typically employs a fluorine-lined seat combined with PTFE packing, ensuring both internal leak tightness when closed and enhanced external leak prevention at the stem.

2.Smooth and Clean Surface: The fluoroplastic lining has an extremely smooth surface that resists material adhesion and scaling, making it very suitable for high-purity or crystallization-prone conditions and is easy to clean.

NO.4. High Cost-Effectiveness and Long Service Life
 

1.Cost Advantage: Provides an excellent corrosion-resistant solution at a much lower cost compared to solid corrosion-resistant valves made from expensive metals like Hastelloy or Monel.

2.Extended Equipment Life: In highly corrosive environments, its service life far exceeds that of ordinary metal valves, significantly reducing the frequent replacement costs and downtime losses caused by valve corrosion and failure.
 

NO.5. Safety and Reliability
 

1.Intrinsically Explosion-Proof: The pneumatic actuator uses compressed air as the power source, producing no electrical sparks, making it suitable for flammable and explosive chemical plant environments.

2.Fail-Safe Position: Accessories like spring return can be configured to automatically move the valve to a fully open or fully closed safe position in case of air supply failure, ensuring system safety.

Application Scenarios

In short, the core value of pneumatic fluorine-lined control valves lies in solving the industry challenge of "achieving precise process control in highly corrosive environments" at an economical cost.
Their main application scenarios include:

1.Chemical Industry: Precise control of various highly corrosive media such as acids, alkalis, and salts.

2.Pharmaceutical Industry: Transfer and regulation of media in reaction kettles and pipelines, meeting cleanliness requirements.

3.Metallurgical Industry: Control of media in pickling lines, plating solutions, etc.

4.Environmental Protection Industry: Regulation in wastewater, waste acid, alkali liquor treatment systems, etc.

Processes involving highly corrosive media in pesticides, dyes, papermaking, and other industries.
 

Company Profile

 

 

Production Process

 

 

 

 

 

 

 

 

 

 

FAQ

Q1.What is the Trade Term?
A1:Ex-work factory , FOB Guangzhou, FOB shenzhen, CIF

Q2. How long is the guarantee (period)?
A2:Three years quality warranty .

Q3.How many colors for selection ? 
A3:More than 30 colors. We will provide you the color card , pls choose your favorite from it.

Q4.How long is our Production leading time?
A4:within 15-20 days upon receive deposit in normal season, and 25-30days in our busy time(August,September,October).

Q5.What is the Payment term?
A5:T/T or L/C at sight. 30% Deposit for start the production ,the balance before the shipment when goods are ready.

Q6.What is the packing details?
A6:Knock down Packing with the carton boxes ,and inside with the pear cotton for protection. Glass parts are packed with
wooden frame outsides to protect the items.

Q7. What support you will have to assemble this furniture?
A7: Inside each packing of the office table products ,we have put the exactly instruction book ,you can assemble the office
table very easy .

Q8.What kind of documents we will provide to you?
A8:B/L,Commercial Invoice, Packing List,Certificate of Original. with these documents you or your borker can do the customs
declaration at your side.

Q9. During shipping, if there is a damage to products, how do you get replacement?
A9: During shipping,our shipping angancy will try to ensure the safety of the goods.If there is a damage to products, they would
be responsible for the damage .If it is not a very serious problems,we will help you and compensate you the damaged parts.

Q10. If there are any missing parts in our shipment, how long it takes for you to send?
A10: If there is some small missing components,we will DHL to you ASAP within one week.