125M High Temperature Sampling Valve
Introduction
Sampling hot process materials requires equipment specifically designed to withstand extreme temperatures while maintaining reliable sealing and representative sampling.
The FAMAT 125M High Temperature Sampling Valve is equipped with a metallic piston, available in Stainless Steel or Hastelloy, allowing safe sampling of powders and other process materials at temperatures up to 300°C (572°F).
Watch the video below to discover how the 125M delivers reliable sampling performance in high-temperature applications.
What is the 125M High Temperature Sampling Valve?
The 125M is a specialized version of the FAMAT sampling valve developed for high-temperature processes where conventional polymer pistons cannot be used.
Its metallic piston incorporates an expandable sealing gasket that retracts into the piston during movement, protecting the sealing element from excessive wear while maintaining reliable sealing from vacuum up to 10 bar (145 psi).
Key Features & Benefits
- Designed for process temperatures up to 300°C (572°F)
- Metallic piston available in Stainless Steel or Hastelloy
- Expandable gasket protected during piston movement
- Reliable sealing from vacuum up to 10 bar (145 psi)
- Representative sampling of hot powders
- Robust construction for demanding industrial environments
- Suitable for corrosive applications with Hastelloy option
How the 125M Works
1. Connect the sampling bottle
The bottle is securely connected to the sampling valve.
2. Open the valve
The metallic piston enters the process while protecting the expandable sealing gasket.
3. Collect the sample
A representative sample is collected directly from the process.
4. Close the valve
The piston returns to its closed position, maintaining a reliable seal despite elevated process temperatures.
Why Choose the 125M?
When process temperatures exceed the limits of conventional sampling valves, the 125M provides a reliable alternative without compromising sampling performance.
Its metallic piston and protected sealing concept make it particularly suitable for demanding thermal processes where durability and sealing performance are essential.
Typical Applications
The 125M High Temperature Sampling Valve is commonly used in:
- High-temperature powder processing
- Chemical manufacturing
- Mineral processing
- Battery materials
- Catalyst production
- Specialty chemicals
- Hot solids handling
Engineering Insight
High-temperature sampling is not simply a matter of replacing polymer components with metal. The sealing system must also be protected from thermal and mechanical stress. The retractable expandable gasket of the 125M is designed to remain protected during piston movement, helping extend service life while maintaining reliable sealing under demanding operating conditions.
FAQ
What is the maximum operating temperature of the 125M?
The 125M is designed for process temperatures up to 300°C (572°F).
Which piston materials are available?
The metallic piston is available in Stainless Steel or Hastelloy, depending on the application and corrosion requirements.
How is the sealing gasket protected?
The expandable gasket retracts into the piston during movement, reducing exposure to friction and helping extend its service life.
Is the valve pressure-tight?
Yes. The 125M provides reliable sealing from vacuum up to 10 bar (145 psi).
Which industries typically use the 125M?
The valve is suitable for chemical processing, specialty chemicals, battery materials, catalyst production and other high-temperature powder applications.
Related Videos
- 125A Standard Sampling Valve – The standard EPT® sampling solution for most applications.
- 125AUT Automatic Sampling Valve – Automated sampling for industrial processes.
- 125CC Crust Breaking Sampling Valve – For products prone to crust formation.
- 125HS Horizontal Intrusive Sampler – Quantitative sampling in gravity-flow pipes.
Related White Papers
- Representative Powder Sampling: Principles, Best Practices and Industrial Applications
- How to Select the Right Sampling Valve for Your Process
- Different Types of Sampling Valves Explained
- Sampling Under Extreme Process Conditions
Related Application Notes
- High Temperature Powder Sampling
- Chemical Powder Sampling
- Battery Material Sampling
- Catalyst Sampling



