SmartTrak® 100HP (High Pressure)



  • User Friendly Design
  • Analog or Digital Signals
  • Pressure from 35 to 345 barg

SmartTrak 100HP (High Pressure)

Precision flow measurement and control at very high gas pressures is among the most challenging applications in the flow industry. Leaks, gas behavioral changes, and unpredictable valve control can all lead to reduced performance.

Designed to overcome these challenges, the 100HP combines the high performance of the SmartTrak® with a wider, more robust flow body, all-welded
sensor seals, an innovative new valve design called ValFlex™, and a state-of-the-art high pressure calibration facility. The result is an instrument with increased application flexibility and accuracy in high pressure gas flow control applications.

To increase valve performance and accuracy under high pressures, ’s proprietary ValFlex™ valve seat technology uses a flexible, high-impact, carbonreinforced polyamide valve seat material to assure smooth interaction with the valve orifice. The result is precision control over a wide range of flows from 100 mln/min to 20 ln/min with an industry leading leak-by as little as 4 mln/min at 345 bar, dependant
on the orifice used.

Because traditional valve seat elastomers like Viton®, Neoprene and Kalrez swell and deform under high pressures, the 100HP uses harder, denser seals to
minimize gas permeability. To ensure the 100HP delivers precise, high pressure measurement and control, each unit is calibrated on our proprietary NIST traceable high-pressure calibration facility using a gas booster, high-pressure accumulator tanks, and mirrored precision pressure gauges, yielding highly accurate inlet and outlet pressures to match the customer’s application perfectly.

An instrument designed with purpose, the 100HP is a versatile solution for the most challenging high-pressure gas mass flow applications.

Features of the SmartTrak 100HP (High Pressure) Meter include:

  • Ideal for pilot plants, hydrogenation reactors, and autoclave processes
  • Measure and control gas mass flow rates over an inlet pressure range of 35 to 345 barg
  • Ranges from 100 mln/min to 20 ln/min (N2 equivalent)
  • High accuracy +/- 1.0% of full scale; repeatability +/- 0.2% of full scale
  • Wide differential pressure range from 0.345 bar to 345 bar
  • Innovative new ValFlex™ control valve design for precision control over a wide range of pressures and flow rates
  • Leak-by of as little as 4 mln/min at 345 bar, depending on orifice size
  • Inert, carbon-reinforced polyamide valve seat increases valve durability and precision
  • Special high pressure rated seals minimize gas permeability
  • Add Vögtlin’s Compod™ expansion module to run small-scale pilot plants or control high pressure reactors and autoclave processes without the expense of DCS or PLC systems.
  • Proprietary high pressure calibration facility, directly traceable to NIST
  • 24 VDC input power reduces installation cost and complexity
  • Unique Pilot Module (mounted or hand-held) lets you view and change critical control functions
  • Choose from multiple analog or digital signals
  • Supports Modbus and Profibus DP
  • CE approved
  • All functions are also available from your PC or workstation via the free SmartTrak100 software


Manufacturer: Vögtlin

Part Ref: ST100HP


Gas: Clean Gas, Corrosives, Toxic

Media Type: Gases

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Specification Detail of the SmartTrak 100HP (High Pressure) Flow Controller:

+/- 1% of full scale in all 10 standard gases

Wetted Material
316 stainless steel or equivalent; 416 stainless steel
90A Viton® seals and Polyamide valve seat (MFC only)

+/- 0.2% of full scale

Standard: ± 1.0 % of full scale including linearity under calibration conditions (optional 0.5% FS for limited conditions

Analog Output Signal
Linear 0/4–20 mA, 500 ohms maximum loop resistance
and one of the following (user selectable):
Linear 0–5 VDC, 1000 ohms minimum load resistance
Linear 0-10 VDC, 1000 ohms minimum load resistance
Linear 1-5 VDC, 1000 ohms minimum load resistance

​Command Signal
Analog (choice of one):
Linear 0-20 mA, 4-20 mA, 0-5 VDC, 0-10 VDC, 1-5 VDC

Digital Communication
RS-232 standard, RS-485 optional
Pilot Module Display optional
Digital Communication Protocols
Profibus DP

Gas & Ambient Temperature
0°C to 50°C

Leak Integrity
5 X 10-9 mbar l/sec of helium or better

All clean gases including corrosives & toxics; specify when ordering.

Height: 137.2 mm
Length: 154 mm*
Width: 37.3 mm
*with ¼-inch compression fittings

Input Power
(ripple should not exceed 100 mV peak-to-peak)
For meter: 15-24 VDC ±10% (230 mA, regulated)
For controller: 24 VDC ±10% (500 mA, regulated)

Rated Burst Pressure
517 barg

​​Pressure Coefficient
0.15% of Full Scale per bar, or better

Temperature Coefficient
0.05% of Full Scale per °C, or better


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