PN25 / PN40 Stainless Steel Flanged Ball Valve

Description

PN25 / PN40 Stainless Steel Flanged Ball Valve – Industrial Grade Supply from Ahmedabad, India

Introduction

In modern Indian industrial infrastructure, flow control equipment plays a critical role in ensuring safety, efficiency, and long service life of piping systems. Among all industrial valves, the PN25 / PN40 Stainless Steel Flanged Ball Valve is one of the most widely used and trusted isolation valves across industries such as oil & gas, chemicals, pharmaceuticals, power plants, water treatment, refineries, and process industries. Designed to handle high pressure, corrosive media, and demanding operating conditions, this valve has become a standard requirement for Indian industrial buyers looking for reliability and compliance with global standards.

Krishna Industries, based in Ahmedabad, Gujarat, India, supplies premium quality PN25 and PN40 stainless steel flanged ball valves suitable for Indian operating conditions, Indian piping standards, and international project requirements. With deep experience in industrial valve sourcing and supply, Krishna Industries serves EPC contractors, OEMs, exporters, maintenance contractors, and plant owners across India.

This product page provides a detailed technical and commercial overview of PN25 / PN40 stainless steel flanged ball valves, covering design, materials, applications, pressure ratings, standards, advantages, selection guidelines, FAQs, and why Indian buyers prefer sourcing from Ahmedabad-based suppliers like Krishna Industries.

Related product keywords naturally covered in this introduction include:
• Stainless Steel Ball Valve
• Flanged Ball Valve
• High Pressure Ball Valve
• Industrial Stainless Steel Valve
• PN25 PN40 Valve for Process Industries

What is a PN25 / PN40 Stainless Steel Flanged Ball Valve?

A stainless steel flanged ball valve is a quarter-turn valve that uses a precision-machined ball with a through-hole to control fluid flow. The valve opens when the ball hole aligns with the pipeline and closes when rotated 90 degrees. The PN25 and PN40 ratings refer to the nominal pressure class of the valve as per EN and DIN standards.

PN25 indicates a pressure rating of 25 bar, while PN40 indicates 40 bar at ambient temperature. These pressure classes are commonly used in Indian industrial projects, especially where medium to high pressure handling is required.

The flanged end connection ensures strong, leak-proof installation using bolted joints, making these valves ideal for permanent piping systems in industrial plants.

Material of Construction – Stainless Steel Grades

Stainless steel is the preferred material for industrial ball valves due to its corrosion resistance, strength, hygiene, and durability. PN25 / PN40 stainless steel flanged ball valves supplied by Krishna Industries are typically manufactured in the following grades:

SS 304 (CF8)
Used for general industrial applications involving water, air, steam, mild chemicals, and non-aggressive fluids.

SS 316 (CF8M)
Recommended for corrosive media, chemicals, saline water, pharmaceuticals, food processing, and marine environments due to its molybdenum content.

Other special grades such as SS 316L, SS 321, or duplex stainless steel can be arranged on request depending on project requirements.

Design and Construction Details

PN25 / PN40 stainless steel flanged ball valves supplied in India are designed for long service life and low maintenance. Key construction features include:

• Two-piece or three-piece body construction
• Full bore or reduced bore design
• Floating or trunnion-mounted ball design (depending on size and pressure)
• PTFE, reinforced PTFE, or metal seats
• Anti-static device
• Blow-out proof stem
• Fire-safe design (optional for oil & gas projects)

The valve body and ball are precision-machined to ensure tight shut-off and smooth operation even under high pressure conditions.

Pressure and Temperature Ratings

Pressure rating is one of the most important selection criteria for industrial valves in India.

PN25 Stainless Steel Ball Valve:
• Rated for 25 bar working pressure at ambient temperature
• Suitable for medium pressure applications
• Commonly used in water treatment, HVAC, and process industries

PN40 Stainless Steel Ball Valve:
• Rated for 40 bar working pressure
• Designed for high pressure industrial applications
• Widely used in oil & gas, chemicals, power plants, and refineries

Temperature range depends on seat material:
• PTFE seats: -20°C to +180°C
• Reinforced PTFE / metal seats: higher temperature options available on request

End Connection – Flanged as per Standards

Flanged end connections provide strong mechanical joints and are widely accepted in Indian piping systems. PN25 / PN40 flanged ball valves are generally manufactured as per:

• EN 1092-1 PN25 / PN40
• DIN flange standards
• BS flange standards
• ANSI Class 300 / Class 600 equivalent (on request)

Krishna Industries ensures compatibility with Indian piping layouts used in factories, plants, and infrastructure projects.

Sizes Available

PN25 / PN40 stainless steel flanged ball valves are available in a wide range of sizes to suit Indian industrial pipelines:

• DN15 (½”) to DN300 (12”) – standard availability
• Larger sizes available on project basis
• Custom bore sizes on request

Applications in Indian Industries

The versatility of stainless steel flanged ball valves makes them suitable for multiple Indian industries.

Oil & Gas Industry
Used in upstream, midstream, and downstream operations for hydrocarbon handling, isolation, and safety shut-off.

Chemical and Process Industry
Ideal for corrosive fluids, acids, solvents, and aggressive chemicals commonly used in Indian chemical plants.

Pharmaceutical Industry
SS 316 valves are preferred for hygienic and contamination-free operation.

Power Plants
Used in boiler feed water lines, cooling systems, and auxiliary piping.

Water Treatment and Infrastructure
Used in high pressure water distribution, pumping stations, and desalination plants.

Food and Beverage Industry
Stainless steel ensures hygiene, easy cleaning, and compliance with food safety standards.

Advantages of PN25 / PN40 Stainless Steel Flanged Ball Valves

• Excellent corrosion resistance
• High pressure handling capability
• Tight shut-off with minimal leakage
• Low operating torque
• Long service life
• Easy maintenance
• Suitable for Indian climatic and operating conditions
• Compatible with international standards

Why Indian Buyers Prefer Stainless Steel Ball Valves

Indian industries operate under diverse environmental conditions, including high humidity, temperature variations, and exposure to chemicals. Stainless steel ball valves offer superior performance compared to cast iron or carbon steel valves in such conditions. Their durability reduces downtime and maintenance costs, making them a preferred long-term investment.

Quality Control and Testing

Krishna Industries ensures that supplied PN25 / PN40 stainless steel flanged ball valves undergo strict quality checks, including:

• Hydrostatic shell test
• Seat leakage test
• Pressure test as per applicable standards
• Visual and dimensional inspection

Test certificates such as Manufacturer Test Certificate (MTC) can be provided on request.

Packing and Dispatch

Valves are packed carefully to avoid damage during transportation:

• Individual protective wrapping
• Bubble wrap or foam protection
• Wooden box packing for export or long-distance dispatch

Valves are dispatched safely across India from Ahmedabad.

Why Buy from Krishna Industries – Ahmedabad, Gujarat

Krishna Industries is strategically located in Ahmedabad, one of India’s major industrial hubs for valve manufacturing and trading. This location offers several advantages to Indian buyers:

• Easy access to manufacturers and foundries
• Competitive pricing
• Faster delivery across India
• Experience in handling bulk and project orders
• Understanding of Indian industry requirements

Krishna Industries positions itself as a dependable industrial valve supplier rather than just a trader, focusing on long-term relationships and repeat business.

Industries Served Across India

Krishna Industries supplies PN25 / PN40 stainless steel flanged ball valves to customers in:

• Gujarat – Ahmedabad, Vadodara, Surat, Ankleshwar, Vapi
• Maharashtra – Mumbai, Pune, Nagpur
• Rajasthan, Madhya Pradesh, Chhattisgarh
• South India – Tamil Nadu, Karnataka, Telangana
• North India – Delhi NCR, Punjab, Haryana

Ordering and Commercial Information

• Ready stock available for standard sizes
• Bulk order support
• Project pricing available
• GST invoice provided
• PAN India delivery

For accurate pricing, Indian buyers are encouraged to share size, quantity, pressure class, material grade, and application details.

Frequently Asked Questions (FAQ)

1. What is the difference between PN25 and PN40 ball valves?
PN25 valves are rated for 25 bar pressure, while PN40 valves are rated for 40 bar pressure, suitable for higher pressure applications.

2. Which stainless steel grade is best for chemical applications?
SS 316 is recommended for chemical and corrosive applications due to better corrosion resistance.

3. Are these valves suitable for steam service?
Yes, depending on temperature and seat material. Please specify steam conditions while ordering.

4. Do you provide test certificates?
Yes, Manufacturer Test Certificates can be provided on request.

5. What flange standards are supported?
DIN, EN, BS, and ANSI equivalent flanges are supported.

6. Are these valves full bore or reduced bore?
Both options are available depending on size and requirement.

7. Can these valves be used for oil and gas projects?
Yes, PN40 stainless steel flanged ball valves are widely used in oil & gas applications.

8. Do you supply in bulk quantity?
Yes, Krishna Industries supports bulk and project orders.

9. What is the delivery time within India?
Standard sizes are usually dispatched within a few working days, depending on stock.

10. Where is Krishna Industries located?
Krishna Industries is based in Ahmedabad, Gujarat, India.

Conclusion

PN25 / PN40 stainless steel flanged ball valves are a critical component in Indian industrial piping systems where pressure, safety, and durability matter. Choosing the right supplier is equally important as choosing the right valve. Krishna Industries, Ahmedabad, offers reliable supply, competitive pricing, and industry-focused support for Indian buyers looking for quality stainless steel ball valves.

For inquiries, bulk orders, or technical discussions, Krishna Industries stands ready to support your industrial valve requirements across India.