Black N.R.V . Flange

Black N.R.V . Flange Specification

Automation Grade
Manual

Coverage Area
Line Control

Flow Rate
Up to 200 m/hr (varies with size)

Power Source
Manual

Product Type
Non Return Valve Flange (N.R.V Flange)

Form
Flanged

Material
Cast Iron / Mild Steel

Diameter
2 inch to 12 inch (customizable)

Usage
Industrial, Water Supply, Plumbing

Rotation Angle
180 Degree

Application
Prevents backflow in fluid pipelines

Area
Pipeline Fittings

Pressure
Max 16 bar

About Black N.R.V . Flange

A ball valve is a flow control device which uses a hollow, perforated and pivoting ball to control fluid flowing through it. It is open when the balls hole is in line with the flow inlet and closed when it is pivoted 90-degrees by the valve handle, blocking the flow

Versatile Application & Reliable Performance

The Black N.R.V. Flange is engineered for multi-media usage, adeptly handling water, oil, gas, and air. Its high-grade construction and anti-corrosive surface ensure extended durability, making it ideal for industrial pipelines, water supply systems, and large-scale plumbing operations. Its ability to function in both horizontal and vertical positions adds installation flexibility.

Zero Leakage with Easy Manual Operation

Designed to meet Class VI leakage standards, this valve guarantees zero leakage and dependable backflow prevention. Manual operation enables straightforward use and maintenance without any need for external power. The swing mechanism ensures smooth, efficient performance with a 180-degree rotation angle.

Customizable and Compatible Design

This non-return valve is available in customizable diameters from 2 inches to 12 inches, accommodating various pipeline requirements. Its flanged ends are precisely drilled to industry standards (ANSI, BS, and DIN), allowing for compatibility across diverse installation setups, whether as a new installation or a retrofit in existing systems.

FAQs of Black N.R.V . Flange:

Q: How is the Black N.R.V. Flange installed in a pipeline system?

A: The Black N.R.V. Flange can be installed on pipelines in either horizontal or vertical positions. The flanged ends are drilled according to ANSI, BS, or DIN standards, making them compatible with most industrial pipeline connections. For optimal performance, proper alignment and gasket fitting should be ensured during installation.

Q: What benefit does the anti-corrosive coating provide?

A: The black anti-corrosive coating strengthens the valves resistance to rust and chemical corrosion, extending its service life in aggressive or humid environments. This feature is essential for maintaining reliable operation in industrial, water, and oil supply systems.

Q: When should I choose a swing type non-return valve like this one over other types?

A: A swing type non-return valve is best suited for applications where backflow protection is needed and flow fluctuations are moderate. It provides minimal pressure drop, responds quickly to flow reversal, and is ideal for water, oil, air, or gas pipelines where efficiency and reliability are priorities.

Q: Where can the Black N.R.V. Flange be used effectively?

A: This valve is versatile and used extensively in industrial pipelines, water distribution systems, plumbing lines, and gas or oil transfer units. Its robust design handles a wide range of fluids and installation settings, making it suitable for both new projects and upgrades in existing infrastructure.

Q: What is the maximum pressure and temperature the valve can handle?

A: The valve is engineered to operate at pressures up to 16 bar and temperatures between -10C and 80C. This makes it compatible with most industrial, water supply, and plumbing requirements, ensuring safety across diverse operating conditions.

Q: How does this valve prevent backflow and maintain zero leakage?

A: Utilizing a swing type mechanism, the valve opens with forward flow and automatically closes to prevent backflow, thanks to its Class VI zero-leakage standard. The high-quality NBR, metal, or brass seat ensures a reliable seal and long-term leakproof performance.

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