Cast Iron Non Return Valve (CI NRV)

Description

Cast Iron Non Return Valve (CI NRV) – Reliable Backflow Prevention Solution for Indian Industries
Supplied by Krishna Industries, Ahmedabad, Gujarat, India

Introduction
In Indian industrial piping systems, controlling the direction of fluid flow is critical for safety, efficiency, and long-term reliability. One of the most essential components used for this purpose is the Cast Iron Non Return Valve (CI NRV), also commonly referred to as a Cast Iron Check Valve. A CI NRV is designed to allow fluid to flow in only one direction and automatically prevent reverse flow, protecting pumps, pipelines, meters, and other downstream equipment from damage.

Krishna Industries, based in Ahmedabad, Gujarat, India, is a trusted supplier of Cast Iron Non Return Valves for a wide range of Indian industrial, commercial, municipal, and infrastructure applications. With a strong understanding of Indian operating conditions—such as fluctuating pressures, inconsistent water quality, and demanding site environments—we supply CI NRV valves that are robust, cost-effective, and suitable for long service life.

This product page is created exclusively for Indian buyers, including contractors, OEMs, EPC companies, industrial maintenance teams, traders, and bulk purchasers. Our CI NRV valves are widely used across India in water supply systems, fire fighting pipelines, HVAC systems, irrigation networks, and industrial process lines. If you are looking for a dependable Cast Iron Check Valve supplier in Ahmedabad, Krishna Industries is your reliable sourcing partner.

What is a Cast Iron Non Return Valve (CI NRV)?
A Cast Iron Non Return Valve is a mechanical valve that permits flow in one direction only. When fluid flows in the intended direction, the internal disc, flap, or piston opens automatically. If the flow stops or attempts to reverse, the valve closes instantly, preventing backflow. This simple yet critical function helps avoid water hammer, pump damage, contamination, and system inefficiencies.

CI NRV valves are manufactured using high-grade cast iron bodies, making them suitable for moderate pressure applications commonly found in Indian industrial and infrastructure projects. Compared to more expensive materials, cast iron offers an excellent balance of strength, durability, and cost, making CI NRVs one of the most widely used non return valves in India.

Related product keywords commonly associated with this product include:
– Cast Iron Check Valve
– Non Return Valve CI
– CI Swing Check Valve
– Cast Iron NRV for Water Line
– Industrial Cast Iron Non Return Valve

Types of Cast Iron Non Return Valves Supplied
Krishna Industries supplies different configurations of Cast Iron Non Return Valves to suit varied Indian applications:

1. Cast Iron Swing Type NRV
This is the most common type used in water supply, fire fighting, and general industrial lines. It uses a hinged disc that swings open with forward flow and closes with reverse flow.

2. Cast Iron Lift Type NRV
Used in vertical or high-pressure lines, lift type NRVs use a guided disc that lifts with flow pressure and drops back to seal when flow stops.

3. Cast Iron Piston Check Valve
Suitable for applications where controlled movement and reduced slamming are required.

All types are available in flanged end connections as per Indian Standards.

Material Construction and Technical Features
Body Material: High-quality Cast Iron (IS 210 or equivalent)
Disc / Flap: Cast Iron or CI with rubber seating (depending on model)
Seat: Metal to metal or resilient seated (EPDM / NBR for water applications)
Ends: Flanged as per IS 1538 / IS 13095 / IS standard drilling
Size Range: Commonly from 40 NB to 300 NB (larger sizes on request)
Pressure Rating: PN10 / PN16 (as per requirement)
Media: Water, air, non-corrosive fluids

Each Cast Iron NRV supplied by Krishna Industries is checked for dimensional accuracy and functional performance, ensuring dependable operation under Indian working conditions.

Applications of Cast Iron Non Return Valve in India
CI NRV valves are used across almost every sector in India where fluid control is required. Common applications include:

– Municipal water supply pipelines
– Overhead tank and sump outlet lines
– Fire fighting pump discharge lines
– HVAC chilled water systems
– Cooling water circulation lines
– Irrigation and agricultural water systems
– Industrial process water lines
– Textile, paper, sugar, cement, and chemical plants (non-corrosive media)

Due to their rugged construction and simple working principle, Cast Iron Non Return Valves are preferred in locations where maintenance access may be limited.

Why Choose Cast Iron NRV from Krishna Industries?
Krishna Industries is positioned as a dependable supplier of CI NRV valves in Ahmedabad, Gujarat, serving customers across India. Our focus is not just on supplying a product, but on ensuring long-term value for Indian buyers.

Key reasons to source from us:
– Strong supplier network in Ahmedabad, India’s valve manufacturing hub
– Consistent quality suitable for Indian operating conditions
– Competitive pricing for bulk and project requirements
– Clear technical understanding and pre-sales support
– Reliable packaging and dispatch across India

We work closely with contractors, traders, and industrial buyers who require repeat supply and consistent specifications.

Quality Control and Assurance
Quality is a critical concern for Indian buyers, especially for infrastructure and industrial projects. At Krishna Industries, Cast Iron Non Return Valves are sourced and supplied with strict quality checks, including:
– Visual inspection of casting quality
– Dimensional verification
– Seating and closure checks
– Functional operation testing

Material test certificates and inspection reports can be provided on request, depending on project requirements.

Packaging and Dispatch
CI NRV valves are packed properly to avoid damage during transportation. For Indian road transport conditions, valves are protected against impact and moisture. Bulk dispatch and project-wise packing options are available.

Minimum Order Quantity (MOQ)
Minimum Order Quantity: 10 Nos
This MOQ is suitable for contractors, traders, and maintenance teams who require small-to-medium quantities while still benefiting from competitive pricing.

Pricing and Availability
Prices of Cast Iron Non Return Valves depend on size, pressure rating, and design type. Krishna Industries offers competitive Indian market pricing, especially for bulk orders and repeat customers. For the latest price and delivery timeline, buyers are encouraged to contact our sales team with their exact requirement.

About Krishna Industries
Krishna Industries is an Ahmedabad-based industrial supplier specializing in flow control products for Indian industries. Located in Gujarat, one of India’s leading manufacturing states, we leverage strong local sourcing and technical knowledge to serve customers across the country.

Our goal is to become a reliable long-term sourcing partner for Indian buyers looking for quality industrial valves at practical prices. We understand Indian project challenges, tight timelines, and cost sensitivity, and we align our supply accordingly.

Frequently Asked Questions (FAQ) – Cast Iron Non Return Valve

1. What is the main function of a Cast Iron Non Return Valve?
A CI NRV allows fluid to flow in one direction and automatically prevents reverse flow, protecting pumps and pipelines.

2. Where are Cast Iron NRV valves commonly used in India?
They are widely used in water supply, fire fighting systems, HVAC lines, irrigation systems, and industrial water pipelines.

3. What sizes are available for CI NRV from Krishna Industries?
Common sizes range from 40 NB to 300 NB. Other sizes can be arranged based on requirement.

4. What pressure ratings are available?
Typically PN10 and PN16, suitable for most Indian industrial and infrastructure applications.

5. Is Cast Iron NRV suitable for drinking water lines?
Yes, CI NRV valves are commonly used in potable water lines when fitted with suitable internal coatings and rubber seating.

6. What is the minimum order quantity?
The minimum order quantity is 10 numbers.

7. Are flanged ends as per Indian Standards?
Yes, flanged drilling is as per relevant IS standards commonly used in India.

8. Can Krishna Industries supply CI NRV for bulk projects?
Yes, we specialize in bulk and project supply across India.

9. How is the valve quality ensured?
Each valve undergoes visual, dimensional, and functional checks before dispatch.

10. Where is Krishna Industries located?
We are based in Ahmedabad, Gujarat, India, and supply to customers all over India.

Conclusion
The Cast Iron Non Return Valve (CI NRV) remains one of the most dependable and cost-effective solutions for backflow prevention in Indian piping systems. With strong demand across water supply, industrial, and infrastructure sectors, choosing the right supplier is critical.

Krishna Industries, Ahmedabad, Gujarat, positions itself as a reliable Indian supplier of Cast Iron Non Return Valves, offering consistent quality, practical pricing, and dependable service. For contractors, traders, and industries looking for a trusted CI NRV sourcing partner in India, Krishna Industries is ready to support your requirements with professionalism and technical clarity.