Shanghai Nellway Valve Co., Ltd.

Threaded low resistance backflow preventer

Backflow preventer

Threaded low resistance backflow preventer

The Threaded Low Resistance Backflow Preventer is designed to prevent backflow in fluid systems. It minimizes resistance to fluid flow. The device features threaded connections that ensure a secure and convenient installation. This backflow preventer is engineered for reliable performance across various applications. It helps maintain system integrity and fluid purity.
NameparameterNameparameter
Nominal DiameterDN50-DN500ConnectionFlange(RF,MF,RJ)
Nominal PressurePN10-PN16Drive ModeElectric,Pneumatic,Manual,Hydraulic
Medium Temperature-29-300℃SealingSoft seal/Hard seal
MaterialCarbon steel:A216 WCB;WCC; A105

Stainless steel:304;316;304L;316L

GGG40(GJS-400-15);GGG50(GJS-500-7)

Design StandardsAPI、ANSI、DIN、GB
Working ConditionsChemical; Petroleum; Natural gas; Water; Paper; MetallurgyMediumWater;Gas

Threaded low resistance backflow preventer Introduction and explanation

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 Product Introduction: Threaded Low Resistance Backflow Preventer

 Product Overview

The Threaded Low Resistance Backflow Preventer is designed to prevent backflow in fluid systems. It minimizes resistance to fluid flow. The device features threaded connections that ensure a secure and convenient installation. This backflow preventer is engineered for reliable performance across various applications. It helps maintain system integrity and fluid purity.


 Product Advantages

  1. Low Resistance Design: This backflow preventer minimizes flow resistance. It helps maintain efficient fluid flow and effectively prevents backflow. This design improves system efficiency and reduces energy consumption.
  2. Easy Installation: Threaded connections make installation straightforward. They allow for quick and easy integration with existing piping systems. This reduces installation time and effort.
  3. Reliable Performance: The low resistance design ensures effective prevention of backflow. It maintains the integrity of the fluid system and supports smooth operation.
  4. Versatility: This device is suitable for various applications. It provides effective backflow protection in residential, commercial, and industrial settings.

 Advantages and Disadvantages of Threaded Connections

– Advantages:

– Ease of Installation: Threaded connections simplify attachment to existing pipes. This reduces installation time and labor costs.

– Secure Fit: Threaded connections create a tight seal. This helps prevent leaks and ensures reliable performance.

– Maintenance: Easy to disassemble for maintenance or replacement. This makes accessing the device convenient without extensive disassembly.

– Disadvantages:

– Potential for Leaks: Threaded connections may become loose or develop leaks over time if not properly maintained or installed.

– Limited Pressure Ratings: They may have lower pressure ratings compared to welded or flanged connections. This could limit their use in high-pressure applications.

– Susceptibility to Thread Damage: Threads can be damaged during installation or removal. This may affect the connection’s integrity and require repair or replacement.


 Media and Applications

– Potable Water: Ideal for drinking water systems. It ensures that the water remains uncontaminated and safe for consumption.

– Non-Corrosive Fluids: Suitable for various non-corrosive liquids, including industrial water and mild chemicals.

– Food and Beverage: Suitable for the food and beverage industry. It maintains fluid purity and meets sanitary standards.


 Usage Locations

– Residential: Used in home water systems. It prevents backflow and ensures clean, safe drinking water.

– Commercial Buildings: Applied in offices, restaurants, and other commercial facilities. It maintains water quality and prevents backflow.

– Industrial: Utilized in manufacturing and processing environments. It provides effective backflow prevention with minimal resistance.

– Municipal Facilities: Essential for city water supply systems and public infrastructure. It ensures clean and safe water distribution.


 Summary

The Threaded Low Resistance Backflow Preventer provides effective backflow protection with minimal flow resistance. Its threaded connections ensure easy installation and maintenance. This device is suitable for potable water, non-corrosive fluids, and food and beverage applications. While threaded connections offer convenience and a secure fit, they may have limitations in pressure ratings and potential for leaks. Overall, this backflow preventer maintains fluid purity, ensures system integrity, and minimizes maintenance needs.

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