FEP PFA Lined Butterfly Valve

Description

FEP / PFA LINED BUTTERFLY VALVE
Supplier: Krishna Industries
Location: Ahmedabad, Gujarat, India
Minimum Order Quantity (MOQ): 10 Nos

INTRODUCTION

In modern Indian process industries, handling aggressive chemicals, corrosive media, and high-purity fluids requires valves that combine chemical resistance, durability, and reliable shut-off performance. The FEP PFA Lined Butterfly Valve has emerged as one of the most preferred flow control solutions for such demanding applications across India. Designed specifically for corrosive and high-purity services, this valve integrates the mechanical strength of a metal body with the superior chemical resistance of fluoropolymer linings such as FEP (Fluorinated Ethylene Propylene) and PFA (Perfluoroalkoxy).

Krishna Industries, based in Ahmedabad, Gujarat, India, is a trusted supplier of FEP PFA Lined Butterfly Valves to Indian industries including chemicals, pharmaceuticals, dyes and pigments, pesticides, specialty chemicals, bulk drug manufacturing, water treatment, and process plants. With deep understanding of Indian operating conditions, Indian standards, and buyer expectations, Krishna Industries focuses on delivering reliable lined valve solutions suitable for long-term use in harsh chemical environments.

FEP PFA Lined Butterfly Valves are closely related to other fluoropolymer-lined flow control products such as PTFE lined butterfly valves, PTFE lined plug valves, PTFE lined ball valves, lined diaphragm valves, and lined gate valves. Among these, the lined butterfly valve is particularly valued in Indian plants for its compact design, low operating torque, wafer-type installation, and cost-effective performance compared to heavier isolation valves.

In Indian chemical plants where acids, alkalis, solvents, chlorinated media, and corrosive slurries are routinely handled, conventional cast iron or stainless steel valves often suffer from corrosion, leakage, and frequent maintenance issues. FEP and PFA linings provide an inert barrier between the process media and the metal body, ensuring longer service life, reduced downtime, and safer plant operations. This makes FEP PFA Lined Butterfly Valves a practical and economical choice for Indian buyers looking to balance performance, safety, and lifecycle cost.

Krishna Industries supplies these valves with a strong focus on Indian buyers, Indian piping practices, Indian flange standards, and Indian plant requirements. From small-scale chemical units to large integrated process industries, these valves are widely used for on-off isolation as well as throttling duties where moderate flow control is required.

PRODUCT OVERVIEW

An FEP PFA Lined Butterfly Valve consists of a robust metallic body, typically cast iron, ductile iron, or carbon steel, internally lined with FEP or PFA fluoropolymer. The disc is also fully lined or encapsulated to ensure complete media isolation. The valve operates using a quarter-turn mechanism, allowing quick opening and closing with minimal effort.

The wafer-type body design allows installation between standard flanges, saving space and reducing overall piping weight. This compact nature is especially beneficial in Indian plants where space optimization and ease of maintenance are important considerations.

FEP lining is generally selected for applications with moderate temperature and pressure, while PFA lining is preferred for higher temperature services and applications demanding superior purity and permeation resistance. Both linings offer excellent resistance to a wide range of chemicals commonly used in Indian industries.

Krishna Industries offers FEP PFA Lined Butterfly Valves in multiple sizes, pressure ratings, and operator options, ensuring suitability for diverse Indian industrial applications.

KEY FEATURES

Excellent chemical resistance against acids, alkalis, solvents, and corrosive fluids
Non-reactive fluoropolymer lining suitable for high-purity applications
Compact wafer-type design for easy installation between flanges
Low operating torque resulting in smooth operation and longer actuator life
Leak-tight shut-off due to precision-molded lining and disc design
Corrosion-free wetted parts ensuring long service life
Suitable for on-off as well as throttling service
Reduced maintenance compared to unlined metal valves
Compatible with common Indian piping and flange standards
Cost-effective solution for Indian chemical and process industries

FEP VS PFA LINING – PRACTICAL INDIAN PERSPECTIVE

In the Indian market, both FEP and PFA lined butterfly valves are widely used, and the choice depends on process conditions.

FEP Lined Butterfly Valve
FEP lining is smooth, non-stick, and offers excellent chemical resistance. It is suitable for most acids, alkalis, and solvents used in Indian chemical plants. FEP lined valves are commonly used where operating temperatures are moderate and cost efficiency is important.

PFA Lined Butterfly Valve
PFA lining offers superior temperature resistance, better mechanical strength, and lower permeability compared to FEP. PFA lined butterfly valves are preferred in Indian pharmaceutical, specialty chemical, and high-temperature chemical applications where purity and performance are critical.

Krishna Industries helps Indian buyers select the correct lining based on media, temperature, pressure, and operating frequency, ensuring optimal performance and cost efficiency.

CONSTRUCTION DETAILS

Body
The valve body is manufactured from high-quality cast iron, ductile iron, or carbon steel. The body is precision-machined and internally lined with FEP or PFA using advanced molding techniques to ensure uniform thickness and strong bonding.

Lining
The fluoropolymer lining covers all wetted surfaces, providing a complete barrier against corrosion. The lining is pinhole-free and tested for integrity to ensure long-term reliability.

Disc
The disc is fully lined or encapsulated with FEP or PFA. This design ensures that the disc does not come into direct contact with the process fluid, preventing corrosion and contamination.

Shaft
The shaft is typically made from stainless steel and isolated from the process media by the lining and sealing arrangement, ensuring smooth rotation and long service life.

Seat and Sealing
The soft fluoropolymer lining acts as the seat, providing excellent sealing performance even after repeated operation.

OPERATION OPTIONS

Manual Lever Operated
Suitable for smaller sizes and applications where frequent manual operation is required.

Gear Operated
Recommended for larger sizes to reduce operating effort and ensure smooth control.

Actuator Ready
Valves can be supplied with mounting arrangements suitable for pneumatic or electric actuators as per Indian plant automation requirements.

APPLICATIONS IN INDIAN INDUSTRIES

Chemical Manufacturing Units
Used for handling acids, alkalis, solvents, chlorinated chemicals, and corrosive intermediates.

Pharmaceutical and Bulk Drug Plants
Ideal for high-purity fluid handling where contamination must be avoided.

Dyes and Pigments Industry
Resistant to aggressive chemicals and slurry-based processes common in Indian dye manufacturing hubs.

Pesticide and Agrochemical Plants
Ensures safe handling of toxic and corrosive chemicals.

Water and Effluent Treatment Plants
Suitable for chemical dosing lines and corrosive wastewater streams.

Specialty Chemical and Process Plants
Used where reliability and chemical compatibility are critical.

ADVANTAGES FOR INDIAN BUYERS

Longer valve life compared to conventional metal valves
Reduced maintenance and replacement costs
Improved plant safety due to leak-free operation
Compatibility with Indian piping practices
Availability of spares and service support from Indian supplier
Cost-effective solution for corrosive services

WHY CHOOSE KRISHNA INDUSTRIES

Krishna Industries is a reliable supplier of FEP PFA Lined Butterfly Valves based in Ahmedabad, Gujarat, India. The company understands the specific needs of Indian buyers, including quality expectations, delivery timelines, pricing sensitivity, and after-sales support.

Strong supplier network and quality control
Focus on Indian standards and plant requirements
Technical support for product selection
Consistent quality and reliable supply
Trusted by Indian chemical and process industries

QUALITY ASSURANCE

Each valve supplied by Krishna Industries undergoes dimensional checks, lining integrity inspection, and functional testing. The focus is on delivering dependable products suitable for continuous service in Indian industrial environments.

PACKAGING AND DELIVERY

Valves are packed securely to prevent damage during domestic transportation. Krishna Industries ensures safe handling and timely dispatch to customer locations across India.

MINIMUM ORDER QUANTITY

The minimum order quantity for FEP PFA Lined Butterfly Valves is 10 Nos, making it suitable for project requirements as well as bulk industrial procurement.

FREQUENTLY ASKED QUESTIONS

1. What is an FEP PFA Lined Butterfly Valve used for?
It is used to control or isolate the flow of corrosive and aggressive chemicals in industrial piping systems.

2. What is the difference between FEP and PFA lining?
FEP is suitable for most chemical applications at moderate temperatures, while PFA offers higher temperature resistance and better purity performance.

3. Are these valves suitable for Indian chemical plants?
Yes, they are widely used in Indian chemical, pharmaceutical, and process industries.

4. Can the valve be used for throttling service?
Yes, FEP PFA Lined Butterfly Valves can be used for both on-off and throttling applications.

5. What body materials are available?
Common options include cast iron, ductile iron, and carbon steel.

6. Are the valves compatible with Indian flange standards?
Yes, they are designed to suit commonly used Indian piping and flange standards.

7. What is the typical operating life of these valves?
With proper selection and operation, they offer long service life with minimal maintenance.

8. Can these valves be automated?
Yes, they can be supplied suitable for pneumatic or electric actuation.

9. Does Krishna Industries supply across India?
Yes, Krishna Industries supplies to industrial customers across India.

10. What is the minimum order quantity?
The minimum order quantity is 10 Nos.

CONCLUSION

FEP PFA Lined Butterfly Valves are an essential component for Indian industries dealing with corrosive and aggressive process media. Their compact design, chemical resistance, and reliable performance make them a preferred choice across multiple sectors. By sourcing these valves from Krishna Industries in Ahmedabad, Gujarat, Indian buyers gain access to dependable products, technical support, and a supplier that understands local industrial requirements. For long-term performance, safety, and cost efficiency in corrosive applications, FEP PFA Lined Butterfly Valves from Krishna Industries represent a proven and practical solution.