Pressure gauge per EN 837-1 with mounted diaphragm seal
Description
Diaphragm seal systems are used to protect the pressure measuring instrument from aggressive, adhesive, crystallising, corrosive, highly viscous, environmentally hazardous or toxic media. The diaphragm made of stainless steel provides for the separation from the medium. The pressure is transmitted to the measuring instrument via the system fill fluid which is inside the diaphragm seal system.
Due to its design - with open flange connection and internal diaphragm with diaphragm bed - the DSS26M is suitable for all currently used standard flanges and is mounted to small process connections for pressure measurement.
Special features
- Open flange with internal, all welded diaphragm with diaphragm bed
- No sealings and clamping elements
- Compact design
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- Pressure measuring instrumentManometer according to EN 837-1 nominal size 100 mm
- Case fillingwithout
- Unit of outer Scalebar
- Scale range—
- Assemblydirect assembly
- System fill fluidKN 2 Silicone oil for general applications
- Unit of temperatureCelsius
- Process temperature min.- 10 °C
- Process temperature max.+ 150°C
- Ambient temperature pressure meas. min+ 10 °C
- Ambient temperature pressure meas. max+ 40 °C
- Process connection standard—
- Process connection—
- Nominal pressure rating—
- Sealing face—
- Wetted partsStainless steel 1.4404/1.4435 (316L); UNS S31603
- Certificateswithout
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| Model | DSS26M |
| Product family | DSS |
| Subcategory | Diaphragm seal system |
| Pressure ranges | 0…6 bar · 0…10 bar · 0…16 bar · 0…25 bar · 0…40 bar · -1…9 bar · -1…5 bar · -1…10 bar |
| Accuracy class | 1.0 |
| Accuracy standard | EN 837-1 |
| Process connection | Flange connection following EN 1092-1Flange connection following ASME B16.5Flange connection following EN 1092-1, Form B1Flange connection following ASME B16.5, RF 125 ... 250 AA |
| Process temperature | −10…+150 °C |
| Case material | Stainless steel 1.4301 [304] |
| Wetted parts material | Stainless steel 1.4404 [316L], Stainless steel 1.4435 [316L] |
| Ambient temperature | +10…+40 °C |
| IP rating | IP65 |
| Certifications | EN 102043.1 inspection certificate per EN 10204EN 10204 3.1 |
| Dial size | 100 mm |
| Datasheet languages | EN |
| Design | Pressure gauge with Bourdon tube per EN 837-1, diaphragm seal with flange connection, internal diaphragm |
|---|---|
| Nominal size (NG) | 100 |
| Accuracy class | 1.0 |
| Pressure limitation | Steady: Full scale value Fluctuating: 0.9 x full scale value Short time: 1.3 x full scale value |
| Permissible temperature range Medium Ambient Storage | -10 ...+150 °C [14 ... 302 °F] 10 ... 40 °C [50 ... 104 °F] 10 ... 60 °C [50 ... 140 °F] |
| Ingress protection | IP65 per IEC/EN 60529 |
| Material wetted non-wetted | Diaphragm seal: Stainless steel 1.4404 [316L] Diaphragm: Stainless steel 1.4435 [316L] Case: Stainless steel 1.4301 [304] Window: Laminated safety glass Dial, pointer: Aluminium |
| Level of cleanliness of wetted parts | Oil and grease free per ASTM G93-03 level F and ISO 15001 (< 1,000 mg/m²) |
| System fill fluid | Silicone oil KN 2 for general applications |
| DN | Class | Dimensions in mm[in] | x | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| NG | H | Mb | D | b | f | k | d 2 | d 4 | |||
| ½" | 150 | 100 | 142 | 32 [1,26] | 90 [3,543] | 22 [0,866] | 2 [0,079] | 60,3 [2,374] | 16 [0,63] | 34,9 | 4 |
| 300 | [3,937] | [5,590] | 40 [1,574] | 95 [3,740] | 66,7 [2,626] | [1,374] | |||||
| 1" | 150 | 52 [2,047] | 110 [4,330] | 79,4 [3,126] | 50,8 [2,0] | ||||||
| 300 | 125 [4,921] | 88,9 [3,5] | 19 [0,748] |
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