Danfoss Safety Temperature Monitor Actuator, STM
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STM Safety Temperature Monitor (Actuator)

Brand: Danfoss
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STM is self-acting proportional temperature controllers used for temperature control and temperature monitoring primarily in steam or hot water applications for temperatures up to 200° C. 

The controllers are:
  • Type-tested according to EN 14597 and protect against exceeding temperatures
  • District heating systems according to DIN 4747
  • Heating systems according to EN 12828 (DIN 4751) and EN 12953-6 (DIN 4752)
  • Water heating systems for drinking and industrial waters according to DIN 4753

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Specifications

Brand

Ambient Temperature Range

  • 0° to 70° C (32° to 158° F)

Applications

  • Steam or Hot Water

Approvals & Certifications

  • EN 14597

BSP Connection

  • 3/4” BSPT Male

Capillary Length

  • Capillary Tube Length: 16.4 feet (5 metres)

Flow Rate

  • 1 to 6.3 m³/hour (Kvs)

Handle Assembly Material

  • Handle for Temperature Setting: Glass-Fibre-Reinforced
  • Handle for Temperature Setting: Polyamide

Length

  • 8.26” (210 mm)

Materials of Construction

  • Immersion Pocket of ms Design: Brass, Nickel-Plated
  • Immersion Pocket: 316L Stainless Steel (1.4435)

Media

  • Circulation Water
  • Glycolic Water
  • Steam

Nominal Pressure

  • Nominal Pressure Sensor & Immersion Pocket: psi: 362.6 (kPa: 2,500, bar: 25)

Operating Temperature

  • Maximum

Scale Panel Material

  • Scale Carrier: Polyamide

Sensor / Probe Material

  • Temperature Sensor: Cooper

Temperature Range

  • 30° to 110° C (86° to 230° F)

Time Constant

  • Time Constant T According to EN 14597: Max.

  • Steam or Hot Water

Documentation

Data Sheets

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