Anti-Siphon Back Pressure Check Valves

Anti-Siphon Back Pressure Check Valves

Chemical pumps are commonly used in the industries like oil and gas, chemical, pulp & paper, etc. The function is to inject a certain amount of chemicals into the system to improve production or prevent corrosion. Usually, anti-siphon valve, back pressure valve and check valve are installed downstream to ensure the chemical pump works properly.Our Anti-Siphon Back Pressure Check Valves combine anti-siphon, back pressure, and non-return functions into one compact valve. With a maximum working pressure of 10,000 psig (690 bar), these valves allow inline adjustment of cracking pressure, with a broad pressure range of 50 ~ 450 psig (3.44 ~ 31.0 bar). Their small size and lightweight design enable easy installation and operation, reducing the number of connections required and improving system reliability

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Product Details

  • Product Name:Anti-Siphon Back Pressure Check Valves
  • Materialof the Valve body: 316，316L，Brass,Alloy 400
  • Inlet Size:1/4”
  • Pressure Grad:5000PSI Or 10000PSI
  • Variousend connection Types:NPT
  • Variousfunctions:

Anti-Siphon function:reduce unwanted siphoning due to wellhead or pipeline condition change.

Back pressure :provide back pressure to keep the output flow from .

Non-Return function:prevent fluids flowing back to the chemical pump

 

Features

  • Integrate three different functions into one, fewer number of connections improve the system reliability
  • Small size, light weight and low installation space requirements, easy for installation and operation
  • Inline adjustment of cracking pressure with broad pressure range

 

Application:

Chemical Pump Outlet Protection

Used in chemical dosing systems for industries such as oil & gas, chemical, and pulp & paper

Prevents chemical siphoning and backflow, stabilizes pump outlet pressure

High-Pressure Fluid Injection

Suitable for high-pressure environments up to 10,000 psig

Critical applications such as deep-sea oil extraction and high-pressure reactor feeding

Compact Integrated Solution

Replaces the combination of anti-siphon valve + backpressure valve + check valve

Saves space, simplifies installation, and improves system reliability

Adjustable Backpressure Control

Allows online adjustment of backpressure (50–450 psig)

Adapts to pressure requirements across different process stages

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