Manual Universal NRV

Manual Universal NRV
Manual Universal NRV
Price And Quantity
  • Piece/Pieces
  • 1
  • Piece/Pieces
  • 10000.00 - 100000.00 INR
    Product Description

    A flexible and important part used to control the flow of fluids or gases in a variety of industrial applications is the Manual Universal NRV (Non-Return Valve). The efficient and regulated operation of pipelines and systems is ensured by the engineering of this valve, which lets fluid or gas flow in one direction while preventing backflow in the opposite direction. The Manual Universal NRV is made from premium materials and is precisely crafted with longevity in mind.



    • The Manual Universal NRV has a strong and durable construction that guarantees dependability in a variety of applications.
    • It was made to be versatile and compatible with a variety of fluids, making it appropriate for use in a variety of industries and applications.
    • The NRV's user-friendly design allows for simple installation, reducing downtime and labor demands.
    • The NRV's internal safety measures stop backflow and protect system integrity.
    • Its well-constructed construction guarantees efficient and friction-free operation, minimizing pressure loss while increasing flow. 


    Manual Universal NRV is a compact plumbing fitting which is used to make a unidirectional flow channels in industrial systems such as water treatment plants and other flow systems to prevent damages due to back pressure. This safety equipment is fabricated by using alloyed steel which gives higher strength and durability. The inlet and the outlet end of this heavy duty Manual Universal Non Return Valve are provided with internal threads to make leakproof non-permanent rigid connections.

    Manual Universal Non Return Valve Features:

    A Universal Non-Return Valve (also known as a check valve) is a type of valve that allows fluid (liquid or gas) to flow in only one direction. It prevents backflow, which could potentially cause damage or disrupt the intended flow direction. Here are some common features and characteristics of a Manual Universal Non-Return Valve:


    1. Design and Configuration: The valve typically consists of a housing with an inlet and an outlet, designed to accommodate the flow of fluid in one direction. It contains an internal mechanism (such as a hinged flap, swinging disc, or spring-loaded poppet) that opens when the fluid flows in the intended direction and closes to prevent backflow.
    2. Material: Universal non-return valves are commonly constructed from materials that are resistant to the specific type of fluid they are intended to handle. This can include materials like stainless steel, brass, bronze, PVC (polyvinyl chloride), or other corrosion-resistant materials.
    3. Connection Types: They are available with various connection types such as threaded, flanged, welded, or compression fittings, making them adaptable to different piping systems.
    4. Size Range: Universal non-return valves come in a range of sizes to suit different flow rates and applications, from small plumbing systems to large industrial pipelines.
    5. Pressure and Temperature Ratings: These valves are designed to withstand specific pressure and temperature conditions based on the application. Manufacturers provide specifications indicating the maximum pressure and temperature the valve can handle.
    6. Cracking Pressure: Cracking pressure refers to the minimum pressure required to open the valve and allow fluid flow. Different valves have different cracking pressures, which are essential to consider based on the system's requirements.
    7. Maintenance and Service: Universal non-return valves are generally low-maintenance due to their simple design. However, periodic inspection and cleaning may be necessary to ensure optimal performance.
    8. Application Compatibility: These valves are used in a wide range of applications, including water supply systems, wastewater systems, industrial processes, oil and gas pipelines, HVAC systems, and more.
    9. Manual Operation: Unlike some other types of valves, universal non-return valves are usually operated passively by the flow of fluid. There is no need for external control; they respond to changes in fluid pressure.
    10. Installation Orientation: Some non-return valves are sensitive to their installation orientation. It's important to install them in the correct direction to ensure proper functionality.
    11. Compact and Space-Saving: These valves are generally compact, making them suitable for installations where space is limited.
    12. Silent Operation: In most cases, these valves operate silently since they do not require external control or actuation.
    13. Backflow Prevention: The primary function of a universal non-return valve is to prevent the backward flow of fluid, which could lead to contamination, damage, or disruptions in the system.



    Q1: What is a Manual Universal Non-Return Valve?

    Ans: A Manual Universal Non-Return Valve, also known as a check valve, is a mechanical device that allows fluid to flow in only one direction. It prevents backflow, ensuring that fluids don't reverse their course within a piping system.

    Q2: How does a Manual Universal Non-Return Valve work?

    Ans: These valves have an internal mechanism, such as a hinged flap, swinging disc, or spring-loaded poppet. When fluid flows in the desired direction, the mechanism opens, allowing passage. If there's an attempt at backflow, the mechanism closes, blocking the flow.

    Q3: What's the purpose of using a Manual Universal Non-Return Valve?

    Ans: The primary purpose is to prevent backflow, which could lead to contamination, damage, or inefficiencies in a piping system. These valves are vital for maintaining the flow direction in systems such as plumbing, HVAC, industrial processes, and more.

    Q4: Can I install a Manual Universal Non-Return Valve in any orientation?

    Ans: No, some valves have specific installation orientations. It's crucial to follow the manufacturer's guidelines to ensure proper functioning. Installing a valve in the wrong orientation can result in it failing to prevent backflow effectively.

    Q5: What are the typical applications of Manual Universal Non-Return Valves?

    Ans: These valves are used in various industries, including water supply, wastewater treatment, oil and gas, chemical processing, HVAC, and more. Any system where maintaining one-directional flow is essential benefits from these valves.

    Q6: Are Manual Universal Non-Return Valves adjustable?

    Ans: Generally, these valves are not adjustable in the field. The cracking pressure (minimum pressure needed to open the valve) is predetermined by the valve's design and cannot be easily modified without specialized equipment.

    Q7: Do Manual Universal Non-Return Valves require regular maintenance?

    Ans: While they are generally low-maintenance due to their simple design, periodic inspections are recommended to ensure proper operation. Cleaning and replacing worn parts, if needed, can extend their lifespan.

    Q8: Can these valves be used for both liquid and gas systems?

    Ans: Yes, these valves can be used in both liquid and gas systems. However, it's important to choose the right valve material and design suitable for the specific fluid being transported.

    Q9: Are there size limitations for these valves?

    Ans: Manual Universal Non-Return Valves come in various sizes to accommodate different flow rates and applications. They range from small valves for residential plumbing to larger ones for industrial pipelines.

    Q10: Can Manual Universal Non-Return Valves be used for corrosive fluids?

    Ans: Yes, valves made from corrosion-resistant materials like stainless steel or PVC can be used for transporting corrosive fluids. It's essential to select a valve that's compatible with the specific fluid's characteristics.

    Q11: How do I determine the correct cracking pressure for my application?

    Ans: The cracking pressure depends on the valve's design and application requirements. Consult the manufacturer's specifications to find a valve with a cracking pressure suitable for your system.

    Q12: Can I manually control the opening and closing of these valves?

    Ans: Manual Universal Non-Return Valves operate passively based on fluid flow and pressure. They don't have external manual controls for opening or closing.

    Q13: Can I install multiple valves in series for added security against backflow?

    Ans: Yes, installing multiple valves in series is a common practice to enhance backflow prevention. This redundancy can provide extra security in critical systems.
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