Our PTFE spindle valve with a melted-in discharge slope and an adjustable sealing surface for residue-free drainage is completely free of dead space. Self-adjusting spindle pressure point, and an
additional safety seal ensure tightness even when the temperature changes. The visual wear indicator reminds you to replace the valve stem in good time. The fire-polished, impact resistant flat flange and the low installation height provide protection against mechanical damage. For ideal adaptation to the conditions (e.g. high or low temperatures, conductivity), stamps and seals are offered in different plastic versions. Our bottom drain valve is available with an integrated PT 100 for problem-free measurement of the sump temperature even when the medium is flowing down.
Model "T" (Standard for NW 60 - NW 200)
- A versatile PTFE valve featuring a 10 mm outlet diameter, engineered for minimal dead volume and an integrated angled outlet for controlled liquid flow.
- Suitable for liquids of varied viscosity, this model incorporates a spring-loaded spindle that ensures consistent sealing, even under changing temperature conditions.
- Compatible with pneumatic valves and can be outfitted with an integrated PT 100 sensor for precise temperature monitoring.
Model "K"
- Built similarly to the Model “T” but with a shorter form, offering a maximum stroke height of 10 mm.
- Ideal for compact setups where space is a premium without compromising the sealing and flow control.
Model "H" (Standard for NW 300)
- Designed for larger-scale applications, this model features a 20 mm outlet diameter, enhancing flow capacity while maintaining HWS’s standard of precision.
- Equipped with a spring spindle for secure sealing, even with fluctuating temperatures, providing reliability in diverse environments.
Model "Q"
- An expanded version of Model “H” with a larger 25 mm outlet for high-flow requirements.
- Suitable for processes requiring efficient handling of higher fluid volumes while minimizing risk of leaks or contamination.
Model "M"
A compact version of Model “H,” offering the same flow and sealing features but with a shorter form, suitable for space-limited setups requiring high capacity.
Model "T/PT"
Similar to Model “T” but enhanced with a PT 100 sensor integrated within the spindle.
This feature allows for seamless, accurate temperature measurement, supporting temperature-sensitive applications and enabling smooth control without requiring additional instrumentation.
Model "H/PT"
An extension of Model “H,” this model also integrates a PT 100 sensor within the spindle for precise, real-time temperature monitoring.
Model "S" (Standard for NW 50)
A PTFE valve with a 2.5 mm outlet diameter, specifically designed for applications where fine control of low-flow fluids is necessary.
"LINEA" Spindle Valve Series
- The “LINEA” model is a specialized spindle valve engineered for total dead volume elimination. Utilizing a non-rotating piston principle, it ensures complete fluid drainage and precise flow control.Key features include:
- Self-adjusting spindle pressure-point, providing total sealing even under variable temperature conditions.
- Additional security sealing, optical use documentation display, and reminder indicators for timely spindle replacement.
- Shock-resistant flat flange with a low profile, minimizing risk of mechanical damage.
- Available in two bore sizes: 10 mm (Model L) and 20 mm (Model P), the “LINEA” valves are designed for labs prioritizing high security and optimal performance.
