DDM-DS11-MS1 / SN:18500-003-15 by Kirchner & Tochter
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The Kirchner & Tochter DDM-DS11-MS1 (Serial Number: 18500-003-15, Item no.: 763-051MS1250A1DH9A) is a differential pressure gauge designed for water flow measurement from 5 to 30 m³/h H2O with a downward to upward flow direction. Built with a PN 16 pressure resistance, a DN 65 size, a tube inner diameter of 70.3 mm, and a construction length of 50 mm, it features a differential pressure of 250 mbar and an accuracy of 5% FS. The unit includes a right-seated DS11 differential pressure gauge displaying in flow units, an adapter plate, NBR seals, and an IP54 protection class. Its construction incorporates a S355 ring, a 1.4571 aperture, and epoxy resin powder paint corrosion protection in glossy traffic blue (RAL 5017) meeting Corrosion Category C3. This exact part number also includes an externally adjustable microswitch with a change-over contact, a 6-pin cable socket with a screw clamp, and load data up to 250 VAC / 250 VA or 30 VDC / 10 W. Designed according to DGRL for use in Category 2, Category 1, and Art. 4.3.
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Characteristics
| Manufacturer | Kirchner & Tochter |
|---|---|
| Part number | DDM-DS11-MS1 / SN:18500-003-15 |
| Inner Code | 5178291 |
| Custom Code | 90261081 |
Technical specification
| Product type | differential pressure gauge with microswitch |
|---|---|
| Item no. | 763-051MS1250A1DH9A |
| Part number | DDM-DS11-MS1 PN 16 DN 65 |
| Flow range | 5 - 30 m³/h H2O |
| Flow direction | downward to upward |
| Tube inner diameter | 70.3 mm |
| Construction length | 50 mm |
| Differential pressure | 250 mbar |
| Ring material | S355 |
| Aperture material | 1.4571 |
| Corrosion protection | epoxy resin powder paint, traffic blue (RAL 5017) glossy |
| Corrosion Category | C3 |
| Accuracy | 5% FS |
| Seat of the indicator | right |
| Seals | NBR |
| Protection class | IP54 |
| Pressure resistance | max. 16 bar |
| Microswitch load data (AC) | U max 250 VAC; I max 5 A; P max 250 VA |
| Microswitch load data (DC) | U max 30 VDC; I max 0.4 A; P max 10 W |
| Serial number | 18500-003-15 |