Solid Non Return Valve Flange NRV (Ball Type)

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Solid Non Return Valve Flange NRV (Ball Type) Specification

Structure
Ball Type

Channels
Single Flow

Caliber
Standard

Connection
Flanged

Pressure
PN 1.0, PN 1.6 (10/16 bar)

Material
Solid Cast Iron

Power
Manual

Media
Water, Oil, Gas

Temperature of Media
Up to 80C

Port Size
25mm to 300mm

Flange
Drilled as per IS:1538

Finish
Painted / Epoxy Coated

Application
Water supply, Sewage, Water treatment plants, Industrial pipelines

About Solid Non Return Valve Flange NRV (Ball Type)

Size mm	Size Inch	Item Code (Plain)	Item Code (Threaded)	Inner Pc.	Inner Box	Std. Pac.	Without GST	With GST
50 mm	2"	SNRV50		-	-	36	210	247.8
65 mm	2 1/2"	SNRV65		-	-	24	262.5	309.75
80 mm	3"	SNRV80		-	-	18	322.5	380.55
100 mm	4"	SNRV100		-	-	12	570	672.6

Dependable Backflow Prevention

Utilizing a ball-type mechanism, this NRV ensures that flow remains unidirectional, safeguarding pipelines against reverse flow. Its reliable closure system activates automatically, making it suitable for both clean water and wastewater media.

Robust Construction & Advanced Coating

Crafted from solid cast iron with a bolted cover joint and either rubber or metal seating, the valve is built for enduring heavy use. An epoxy or paint finish enhances corrosion resistance, extending operational life in even the harshest environments.

Versatile Applications & Compliance

This valve adheres to IS 5312 - Part 1 standards, and its flanged endsdrilled as per IS:1538/ANSI B16.5enable seamless integration into various pipe systems. It is ideal for water supply, sewage networks, water treatment facilities, and a range of industrial pipeline installations.

FAQs of Solid Non Return Valve Flange NRV (Ball Type):

Q: How does the ball type mechanism in the Solid Non Return Valve ensure backflow prevention?

A: The ball type mechanism automatically closes when reverse flow is detected, using the pressure of the returning fluid to seat the ball and block the passage. This action prevents media from flowing back into the system, ensuring unidirectional flow as needed in water supply and treatment applications.

Q: What are the main benefits of the corrosion-resistant epoxy coating on this valve?

A: The epoxy coating provides an additional layer of protection against environmental and chemical-induced corrosion, ensuring a longer operational lifespan. This is particularly beneficial in water, sewage, and industrial pipelines exposed to moisture or harsh substances.

Q: Where is this Solid Non Return Valve (Ball Type) commonly installed?

A: It is commonly installed in horizontal positions within water supply networks, sewage pipes, water treatment plants, and various industrial pipeline systems, especially where reliable prevention of backflow is crucial.

Q: When should I select a rubber seat versus a metal seat for this NRV?

A: A rubber seat is ideal for handling fluids with suspended solids or where a tight seal is paramount, such as in sewage systems. A metal seat is recommended for higher temperature media or applications involving abrasive or corrosive fluids that could wear down softer materials.

Q: How is the Solid Non Return Valve installed into the pipeline?

A: Installation is performed by connecting the flanged ends of the valvedrilled as per IS:1538 or ANSI B16.5to the corresponding pipe flanges, ensuring a secure and leak-free joint using standard gaskets and bolts.

Q: What media and temperature ranges are supported by this Non Return Valve?

A: The valve supports water, oil, and gas media within a temperature range up to 80C, making it suitable for a variety of standard industrial and municipal applications.

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