Weidouli offers a comprehensive range of  for all types of applications and industries.

 

Dual plate check valves have ASME JB/T 8937  & API 594  design; wafer type and the end connections: Flange RF, Wafer & Lug are all standard unit.

 

the other available type of Weidouli Including Monel pressure seal check valve, Monel nozzle check valve, Monel single plate check valve, Monel lift type check valve, Monel swing check valve.

 

Material of Monel Check Valves

 

Monel alloy is a Nickel alloy material with the addition of:

Copper (Cu)

Silicon (Si)

Manganese

 

these materials are also known as Monel Alloy 400 and Monel Alloy K500

Material Features:

 

Monel alloy has an excellent anti-corrosion performance in the reducing acid medium, especially have excellent corrosion resistance in high-temperature hydrogen fluoride and hydrofluoric acid solution, and resistant to any density of hydrofluoric acid solution corrosion. Mainly applies in high-temperature hydrogen fluoride gas and hydrofluoric acid solution condition, and its corrosion resistance is better than copper-based alloys when used in seawater.

 

Monel alloy has an excellent anti-corrosion performance in the reducing acid medium, especially have excellent corrosion resistance in high-temperature hydrogen fluoride and hydrofluoric acid solution, and resistant to any density of hydrofluoric acid solution corrosion. Mainly applies in high-temperature hydrogen fluoride gas and hydrofluoric acid solution condition, and its corrosion resistance is better than copper-based alloys when used in seawater.

 

Cautions of Monel Check Valves

 

Ease of manufacture: trade-off between castability and weldability

Pitting can be a problem at low velocities

Don'T be used as the trim of austenitic stainless valves

P/T rating class 300=600 psi CWP

Cost effectiveness need consideration

 

Application of Monel Check Valves

 

Petrochemical plant

Refinery

Power plant

Water treatment plant

Marine exploitation

 

Additional Uses & Comments of Monel Check Valves

 

Variety of wrought/ bar specifications available, good for trim material. Excellent strength from K500

Reasonable castability with the suitable design and higher Si content

Weldable with lower Si content

Excellent for hydrofluoric & other acids (Exclude nitric acids)

 

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