Non Return Valves (NVR) - Mechanism, Applications, and Advantages

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Non Return Valves (NVR) - Mechanism,
Applications, and Advantages
A non-return valve (NRV Valve) is designed to
allow the flow of material either liquid or
gaseous in one direction only. The NRV valves
help in preventing the material from flowing back
upstream of the valve. The Non-return valves are
used to ensure the right direction of the flows
of the medium through a pipe, as pressure
conditions may otherwise cause reversed
flow. While designing the system where the
non-return valve is getting installed one must
take the large pressure drop into account for
better performance. The NRV valves are also
known as a check valve, clack valve, one-way
valve, or retention valve. There are different
types of non-return valves (NRV valves) available
in the market, one needs to select it as per the
purpose of using it and the place of installation
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• The types of NRV valves include,
• Cast Iron Non-Return Valve
• Forged Carbon Steel NRV
• Forged Allow Steel NRV
• Forged Stainless Steel NRV
• PVC Non-Return Valve
• Mechanism Of Non-Return Valve
• You might be thinking that how this non-return
  valve (NRV) works? The working process of this
  valve depends upon the openings and pressure of
  the material flowing through it.
• There are two openings in a non-return valve with
  a closing member situated between them, one
  opening is for fluid to enter and the other for
  fluid to leave.
• The pressure made by the fluid after entering the
  valve holds the closing mechanism open. If the
  fluid attempts to flow back through the valve in
  the wrong direction, the closing member is forced
  back over the entrance of the valve preventing
  any flow

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• Applications and Uses
• Pumping System
• Steam Boilers
• Metering Pumps
• Laboratories
• Power Plants
• Pharmaceutical Companies
• Fuel Systems
• Pipeline Systems
• Water Control Systems
• Fuel Injection Systems
• Nuclear Industry
• Home Heating Systems
• Sprinkler Systems

• Advantages
• Operates Automatically
• Available In Wide Range of Sizes
• Compact
• Protects Pump and Compressor Equipment
• Prevents Back Flow
• Helps In Preventing Water Hammering
• Saves Energy
• Reduces Sudden Valve Failure
• Low Maintenance Cost

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Price Of NRV Valve The non-return valve price
varies from size to size and material to
material. As we discussed above in this article
NRV valve types include non-return valves made
from cast iron, forged carbon steel, forged alloy
steel, forged stainless steel, and PVC non-return
valves. The price list of NRV valves can be
categorized as per the size and material used to
manufacture them. Indusroof is a leading and
trustworthy brand for industrial supplies having
a 1000 client base. Committed to providing
standard quality products assuring powerful
performance and durable products, you can make
your order for the best quality non-return valves
online and get it delivered safely and quickly.
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Non Return Valves (NVR) - Mechanism,
Applications, and Advantages
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