AMOT Elements for model B AMOT valves

The AMOT elements are basically the heart of the valve. The valve elements regulate the opening and closing of the valve at a set temperature. A special wax is placed deep in the bottom ‘nut’ of the AMOT element. The expansion of the wax will help slide the element and control the flow. This part is connected with these sidebars that are inside this barrel. The sidebars inside the barrel together make the sliding valve.

The piston is very robust and nearly impossible to pull by hand. All AMOT elements can be calibrated and adjusted at the required set temperature.

The sliding of the element piston will control where the flow is going based on what is happening with the temperature of the medium. The element is closed when the media is “cold” or below the nominal temperature. When the wax gets heated, it will expand and push the sliding valve out, which will cause the AMOT element to open.

How does the element work inside a valve:

• Crack open
  Element closed below Crack Open Temperature. All the flow is coming from the B port, bypass, and goes to the A port. Nothing is coming from the C port in a 3-way valve situation.
• 50% open position
  Element is 50% open at Control Temperature. After the crack open temperature has been reached, the element will be open, maybe not all the way, and some flow is coming from B, some from C, and will get mixed going thru A.
• Full open
  Element 100% open above Full Open Temperature. All the flow is coming from the C port, the cooler side, and the media is hotter than the nominal temperature. Once enough cold media has gone thru that the element cools down, the element will close.

The crack open temperature of AMOT elements for valves may variate between 12 and 115 degrees celsius. For example, when an element is set at 60°C, it will crack open at 55°C. Below that, the flow is between A and B ports. Between 55°C and 65°, the flow goes thru the three ports. Above 20°C, the flow goes between C and A.

The maximum temperature is a fascinating setting, and sometimes we forget about it. With extended heat, the wax may start losing its characteristics. In short, above the maximum temperature, the wax inside the valve element is burned. Burning the wax, we lose some physical features that allow expanding at a specific temperature.

Available AMOT elements for B valve:

• Element type: 1096X, Element construction: Standard, Seal material: Buna N/Nitrile
• Element type: 1096P, Element construction: Nickel plated, Seal material: Viton
• Element type: 1096X, Element construction: Standard, Seal material: Viton
• Element type: 6836S, Element construction: Saltwater, Seal material: Buna N/Nitrile
• Element type: 2433X, Element construction: Standard manual override, Seal material: Buna N/Nitrile
• Element type: 2433P, Element construction: Nickel plated manual override, Seal material: Viton
• Element type: 6938S, Element construction: Saltwater manual override, Seal material: Buna N/Nitrile
• Element type: 5566X, Element construction: Short stroke, high overtemp., Seal material: Buna N/Nitrile
• Element type: 5566X, Element construction: Short stroke, high overtemp., Seal material: Viton
• Element type: 1096X, Element construction: Standard, Seal material: Neoprene
• Element type: 1096P, Element construction: Nickel plated, Seal material: Neoprene
• Element type: 2433X, Element construction: Standard manual override, Seal material: Viton
• Element type: 48920X, Element construction: Standard with SS cage & sliding valve, Seal material: Buna N/Nitrile
• Element type: 49580X, Element construction: Standard manual override with SS cage & sliding valve, Seal material: Buna N/Nitrile
• Element type: 48920X, Element construction: Standard with SS cage & sliding valve, Seal material: Viton
• Element type: 49580X, Element construction: Standard manual override with SS cage & sliding valve, Seal material: Viton