Forged Steel NRV Class 800
Forged Steel NRV Class 800
Class 800
Forged Steel NRV Class 800

Forged Steel Non Return Valve designed for automatic prevention of reverse flow in high-pressure industrial piping applications.

Product Specifications
Valve Type Forged Steel Non Return Valve
Pressure Class Class 800
Design Lift Check / Piston Type
Size Range As per project requirement
Body Material Forged Steel
End Connection Screwed / Socket Weld
Operation Automatic / Self-Actuated
Application Oil & Gas, Refinery, Petrochemical, Steam & Process Piping
Forged Steel Class 800 NRV Check Valve Non Return Valve
Forged Steel NRV Class 800

Forex Valves manufactures and supplies Forged Steel NRV Class 800 for industrial piping systems where automatic reverse-flow prevention is required. The valve operates according to fluid flow direction and is suitable for applications where compact high-pressure flow control is required.

Forged Steel NRV Class 800

Forex Valves manufactures and supplies Forged Steel NRV Class 800 for industrial piping systems that require automatic prevention of reverse flow. The valve is designed for high-pressure applications where fluid must move through the pipeline in one direction.

A Forged Steel NRV, also known as a Forged Steel Non Return Valve or Forged Steel Check Valve, closes automatically when the flow stops or attempts to reverse. This prevents backflow without requiring an external actuator.

Forged Steel NRV Class 800 Specifications

Specification Details
Valve Type Forged Steel Non Return Valve
Pressure Class Class 800
Valve Design Lift Check / Piston Type
Size Range As per project requirement
Body Material Forged Steel
Disc As per material specification
Seat As per material specification
End Connection Screwed / Socket Weld
Operation Automatic / Self-Actuated
Design Standard As applicable to selected valve
Testing Standard As applicable to selected valve
Service Industrial Piping Applications
Note: Final size range, material grades, pressure-temperature ratings, dimensions and applicable standards should be confirmed according to the selected valve design and project specification.

Forged Steel Construction

The Forged Steel NRV Class 800 uses a forged pressure-containing body for applications where a compact valve construction is required in high-pressure piping. Material selection for the body and internal components depends on the operating medium, pressure, temperature and service conditions.

The forged construction is particularly relevant to small-bore process piping where the valve must provide one-way flow control within a compact installation.

Working Principle

The valve operates according to the pressure and direction of the fluid.

During normal forward flow, the internal closing element moves away from the seat and allows fluid to pass through the valve. When the flow decreases, stops or reverses, the closing element returns toward the seat and restricts reverse flow.

Because the valve responds automatically to flow conditions, no external actuator is required for normal operation.

End Connection Options

Screwed End

Screwed-end connections are used for applicable small-bore piping installations. Thread type should be selected according to the piping and project requirements.

Socket Weld End

Socket-weld connections provide a welded connection between the valve and piping. They are used where a permanent welded connection is required for the installation.

Class 800 Forged Steel NRV Applications

Forged Steel NRV Class 800 can be selected for industrial piping systems where automatic reverse-flow prevention is required, including:

  • Oil and gas systems
  • Refinery piping
  • Petrochemical plants
  • Chemical process systems
  • Power generation
  • Steam and utility piping
  • Process plants
  • Industrial fluid systems

The actual valve material and configuration should be selected according to the fluid, operating pressure, operating temperature and piping requirements.

Forged Steel NRV for Gulf Industrial Applications

Forex Valves supplies Forged Steel NRV Class 800 for industrial valve requirements in Gulf markets, including United Arab Emirates (UAE), Saudi Arabia, Qatar, Oman, Kuwait and Bahrain.

These markets include oil and gas facilities, refineries, petrochemical plants, power projects, process industries and industrial utility systems where non-return valves are used to control reverse flow.

For Gulf projects, valve selection should be based on the project specification, operating conditions, required material grade, pressure class and end connection.

Forged Steel NRV Manufacturer & Supplier

Forex Valves manufactures and supplies forged steel non-return valves for industrial piping applications. Customers can specify the pressure class, valve size, body material, end connection, service medium, operating pressure and temperature when requesting a valve configuration.

The final valve specification should be confirmed against the applicable project standard and service requirements before procurement.

Frequently Asked Questions

What is a Forged Steel NRV?

A Forged Steel NRV is a non-return valve manufactured with a forged steel pressure-containing body. It permits flow in the intended direction and automatically restricts reverse flow.

What does Class 800 mean?

Class 800 identifies the pressure class of the valve. The allowable working pressure depends on factors such as material and operating temperature and should be confirmed from the applicable pressure-temperature rating.

How does a Forged Steel NRV work?

The valve uses fluid pressure and flow direction to open and close its internal closing element. Forward flow opens the passage, while reverse flow causes the valve to close and prevent backflow.

What end connections are available?

Forged Steel NRVs can be configured with screwed or socket-weld ends, depending on the valve design and piping requirements.

Where are Class 800 Forged Steel NRVs used?

They are used in industrial applications such as oil and gas, refineries, petrochemical plants, chemical processing, power generation and steam systems where reverse-flow prevention is required.

Is an actuator required?

No external actuator is normally required. An NRV operates automatically according to the direction and pressure of the fluid flow.