PTFE Lined Plug Valve Manufacturer & Supplier in Ahmedabad, Gujarat, India
Krishna Industries
Introduction to PTFE Lined Plug Valve
In highly corrosive industrial environments where aggressive chemicals, acids, alkalis, and hazardous media are handled daily, selecting the correct valve is not optional — it is mission-critical. A PTFE Lined Plug Valve is specifically engineered to provide superior corrosion resistance, leak-proof sealing, and reliable quarter-turn operation for demanding chemical and process industries.
At Krishna Industries, Ahmedabad, Gujarat, India, we manufacture and supply premium quality PTFE lined plug valves designed for Indian industrial buyers who require durability, safety compliance, and long service life under harsh conditions.
A PTFE lined plug valve combines the mechanical strength of a metallic body (Cast Iron, Cast Steel, Ductile Iron, WCB, etc.) with the chemical inertness of PTFE (Polytetrafluoroethylene) lining. This dual-layer engineering ensures that the process fluid only contacts the PTFE surface, eliminating corrosion risks and extending operational lifespan.
This valve category is closely related to:
PTFE Lined Ball Valve
PFA Lined Butterfly Valve
Fluoropolymer Lined Control Valve
Chemical Resistant Plug Valve
Lined Diaphragm Valve
However, the PTFE lined plug valve stands out due to its robust construction, bubble-tight shutoff, and suitability for slurry, viscous fluids, and corrosive media where standard valves fail prematurely.
What is a PTFE Lined Plug Valve?
A PTFE lined plug valve is a quarter-turn rotary valve where a cylindrical or tapered plug rotates inside a lined body to control flow. The internal surface is lined with PTFE to provide:
Complete corrosion resistance
Zero metal contact with process fluid
Reduced friction
Enhanced sealing performance
When the plug aligns with the flow path, media passes through. A 90° rotation stops the flow completely.
Why PTFE Lining is Critical in Indian Industries
India’s chemical and pharmaceutical sectors are expanding rapidly. Industries handling acids such as:
Hydrochloric Acid (HCl)
Sulphuric Acid (H₂SO₄)
Nitric Acid
Caustic Soda
Chlorine
Solvents
Effluents
require corrosion-proof flow control solutions.
Traditional CI or CS valves corrode quickly, leading to:
Leakage
Maintenance cost
Production shutdown
Safety hazards
PTFE lining prevents all of the above.
Key Features of PTFE Lined Plug Valve
1. 100% Corrosion Resistance
PTFE is chemically inert and resistant to almost all industrial chemicals.
2. Bubble-Tight Shutoff
Designed for zero leakage operation.
3. Full Bore / Reduced Bore Options
Ensures minimal pressure drop.
4. Quarter Turn Operation
Quick open/close mechanism.
5. Maintenance Friendly
Replaceable PTFE sleeves and sealing elements.
6. Anti-Static & Fire-Safe Options
Available for hazardous environments.
7. Heavy Duty Construction
Metallic outer body ensures mechanical strength.
8. Long Service Life
Reduces replacement and downtime cost.
Technical Specifications
Parameter
Specification
Size Range
15mm to 300mm
Pressure Rating
PN10 / PN16 / Class 150
Temperature Range
-20°C to 180°C
Lining Material
PTFE / PFA
Body Material
CI / DI / WCB / CF8 / CF8M
End Connection
Flanged (ANSI / DIN / IS)
Operation
Lever / Gear / Actuator
Testing
Hydro & Pneumatic
Applications in Indian Industries
Chemical Processing Plants
Handling strong acids and corrosive liquids.
Pharmaceutical Manufacturing
Sterile and corrosive chemical flow control.
Textile & Dye Industry
Chemical dosing and aggressive dye fluids.
Effluent Treatment Plants (ETP)
Chemical neutralization systems.
Petrochemical Units
Handling solvents and hydrocarbons.
Fertilizer Plants
Corrosive slurry and liquid chemical control.
Working Principle
The plug inside the valve contains a through-hole. When aligned with the pipeline, fluid flows freely. Rotating the plug by 90 degrees blocks the passage completely.
The PTFE lining ensures:
No corrosion
Smooth rotation
Tight sealing
Unlike metal-seated valves, friction is reduced significantly.
Advantages Over Other Valve Types
Valve Type
Limitation
PTFE Lined Plug Valve Advantage
Ball Valve
Seat wear in slurry
Better handling of viscous media
Butterfly Valve
Lower pressure rating
Stronger sealing
Gate Valve
Slow operation
Quick quarter-turn
Metal Plug Valve
Corrosion issues
100% chemical resistance
Manufacturing Excellence at Krishna Industries
Krishna Industries is a trusted PTFE lined plug valve manufacturer and supplier based in Ahmedabad, Gujarat, India.
We focus on:
Indian industry requirements
Competitive pricing
Fast delivery
Quality assurance
Proper documentation (GST, HSN, Test Certificate)
Our valves undergo:
Hydrostatic testing
Spark testing of lining
Dimensional inspection
Pressure testing
Quality Control Process
Raw Material Inspection
Casting Verification
PTFE Lining Thickness Check
Pressure Testing
Leak Testing
Final Inspection
Documentation & Dispatch
Why Indian Buyers Prefer Krishna Industries
✓ Competitive Pricing
✓ 10 MOQ Suitable for Project Orders
✓ Fast Dispatch from Ahmedabad
✓ GST Billing
✓ After-Sales Support
✓ Technical Assistance
✓ Custom Size Manufacturing
✓ PAN India Supply
We understand the compliance and cost sensitivity of Indian buyers and offer optimized solutions accordingly.
Minimum Order Quantity (MOQ)
MOQ: 10 Pieces
We maintain a minimum order quantity of 10 units to ensure cost efficiency in production and supply.
For bulk industrial projects, customized pricing is available.
Packaging & Dispatch
Wooden Box Packing
Bubble Wrapped
ISPM-15 Certified Export Packaging (If Required)
Delivery Across India
10 Frequently Asked Questions (FAQ)
1. What is the temperature limit of PTFE lined plug valve?
It typically operates between -20°C to 180°C.
2. Is it suitable for hydrochloric acid?
Yes, PTFE is highly resistant to HCl.
3. Can it handle slurry?
Yes, specially designed plug valves can manage slurry applications.
4. What is the pressure rating?
Available in PN10, PN16, and Class 150.
5. Is actuator mounting possible?
Yes, pneumatic and electric actuators can be mounted.
6. Does PTFE lining peel off?
No, when properly molded and bonded, it does not peel.
7. What industries use this valve most?
Chemical, pharma, fertilizer, textile, ETP.
8. Is it better than PTFE lined ball valve?
Depends on application; plug valves perform better in viscous media.
9. What testing standards are followed?
Hydrostatic and pneumatic testing as per standards.
10. Do you provide test certificates?
Yes, material and pressure test certificates are provided.
Comparison: PTFE vs PFA Lining
Property
PTFE
PFA
Chemical Resistance
Excellent
Excellent
Surface Finish
Slightly Rough
Smoother
Cost
Lower
Higher
Application
General Chemicals
High Purity
Industries in Gujarat Using PTFE Lined Plug Valves
Ahmedabad, Ankleshwar, Vapi, Bharuch, Vadodara are major chemical hubs where lined valves are extensively used.
Krishna Industries actively supplies to:
Chemical plants in GIDC
Pharma companies
ETP contractors
Industrial projects
Maintenance Guidelines
Rotate valve periodically
Avoid dry running
Do not exceed temperature rating
Inspect annually
Use compatible media only
Safety & Compliance
Our PTFE lined plug valves comply with:
IS Standards
ANSI Standards
DIN Standards
GST Compliance
Proper HSN Code Billing
Customization Options
Gear Operated
Electric Actuated
Pneumatic Actuated
Fire Safe Design
Anti Static Design
Jacketed Body Option
How to Select Correct PTFE Lined Plug Valve?
Consider:
Media Type
Pressure
Temperature
Flow Rate
End Connection
Automation Requirement
Our technical team assists in proper selection.
Conclusion
When dealing with corrosive chemicals and aggressive media, investing in a high-quality PTFE Lined Plug Valve is not an expense — it is a long-term operational safeguard.
Krishna Industries, based in Ahmedabad, Gujarat, India, is a reliable manufacturer and supplier of PTFE lined plug valves tailored for Indian industries.
With MOQ of 10 pieces, strict quality control, competitive pricing, and nationwide delivery, we are committed to delivering dependable flow control solutions.
For bulk orders, project inquiries, or technical support, contact Krishna Industries today.
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