Internal liquid ammonia shut-off valve

AJ11H-25C internal wire liquid ammonia shut-off valve_Threaded liquid ammonia globe valve

Model: AJ11F-25C AJ11B-25C AJ11H-25C

Overview of Threaded Liquid Ammonia Stop Valve:

A105 forged threaded ammonia shut-off valve, also known as threaded ammonia shut-off valve, internal threaded ammonia shut-off valve, external fluorine shut-off valve, uses A105 forged valve body, PTFE valve disc, packing seal, and an upper seal added to the upper valve cover When the valve is in the open state, it has a two-layer sealing effect together with the packing and has a certain protective effect on the packing. Liquid ammonia shut-off valve, ammonia shut-off valve, ammonia shut-off valve, and fluorine shut-off valve belong to the lifting rotary rod shut-off valve. The valve disc moves linearly along the center line of the valve seat. When the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak.

Threaded liquid ammonia globe valve picture - Shanghai Yonglong Valve Factory

Technical parameters of internal liquid ammonia shut-off valve:

Valve body material: A105N

Caliber specification: DN15~DN20

Nominal pressure: PN2.5Mpa

Valve disc seal: PTFE, Babbitt alloy

Packing: PTFE V-shaped O-ring

Using media such as liquid ammonia, ammonia, fluorine, and refrigerant

Picture of Inner Liquid Ammonia Stop Valve - Shanghai Yonglong Valve Factory

Working principle of threaded liquid ammonia shut-off valve:

A105 forged threaded liquid ammonia shut-off valve,AJ11H-25C internal wire liquid ammonia shut-off valveWhen the handwheel is turned clockwise, the valve stem moves downward and the valve disc descends to seal the sealing surface, cutting off the passage When reversing, it opens and the valve stem is raised to the highest point. Rotate it slightly with force to seal it. During the daily operation of the liquid ammonia shut-off valve, if there is sporadic leakage of gas from the valve stem, gently tighten the cap with a wrench.

In the stage where the liquid ammonia shut-off valve starts to close from the fully open position, as the valve disc descends, the fluid creates a pressure difference before and after the valve disc to prevent it from descending, and this resistance rapidly increases as the valve disc descends. When the liquid ammonia shut-off valve is fully closed, the pressure difference before and after the valve disc is equal to the working pressure of the medium, resulting in greater resistance. Further apply forced sealing force to rapidly increase the operating force at the moment of closing the shut-off valve. During the valve opening process, the thrust caused by the medium pressure or the pressure difference before and after the valve disc helps to open the valve, so the closing force is greater than the opening force.

Product Name: Ammonia Thread Stop Valve - Ammonia Thread Stop Valve - Ammonia External Stop Valve - Ammonia Thread Stop Valve - Ammonia Thread Stop Valve - Ammonia Internal Thread Stop Valve - Ammonia Internal Thread Stop Valve - Ammonia Thread Stop Valve - Ammonia Internal Thread Stop Valve