MST21 Stainless Steel Balanced Pressure Thermostatic Steam Trap
The MST21 is a rebuildable stainless steel condensate pot based on the pressure balance principle, designed for low flow rates such as instrument tracing.
Available types:
- MST21 with normal capacity for instrument tracing
- MST21H with high capacity for special applications
Capsule filling and operation:
The standard capsule is marked with the letter 'STD' for operation at approximately 10°C below the saturated steam temperature.
Upon request, the condensate pot can be supplied with a 'SUB' capsule (operation approximating 22°C below the saturated steam curve) or with an 'NTS' capsule (4°C subcooling).
European Pressure Equipment Directive (PED):
This product fully complies with the European Pressure Equipment Directive 97/23/EC.
Certificates:
At an additional cost, this condensate pot is available with a 'Test Report'. Certificates must be requested at the time of ordering.
Diameters and connections:
- MST21 ¼”, 3/8”, and ½” threaded connection BSP, EN ISO228-1, NPT
- MST21H ½”, ¾”, and 1” threaded connection BSP, EN ISO228-1, NPT
Pressure and temperature limits:
see datasheet
The condensate pot is self-draining when vertically positioned, with the inlet at the top and condensate discharge at the bottom. In a horizontal setup, provide a cooling line upstream.
