# Differential pressure gauge — DPG40

> With integrated working pressure indication (DELTA-plus)

- Catalog code: dpg40
- Model: DPG40
- Category: Pressure measurement › Pressure gauges
- Product page: https://avigan.com.ua/wika/en/products/dpg40
- Price: on request
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

The differential pressure gauges of the DELTA-line product family are primarily used for the monitoring of low differential pressures where there are high ...

## Applications

- Monitoring of filtration, flow and level for:
- Boilers and pressure vessels
- Drinking and cooling-water treatment plants
- Pressure-boosting and pumping stations
- Heating technology
- Fire-extinguishing systems

## Special features

- Shatterproof window and robust aluminium or stainless steel measuring chamber for increased requirements
- Low scale ranges from 0 ... 160 mbar
- High accuracy down to 1.6 %
- Optionally with approvals for hazardous areas
- Helium leak tested

## Specifications

| Parameter | Value |
|---|---|
| model | DPG40 |
| product family | DELTA-plus |
| short description | Differential pressure gauge with integrated working pressure indication for monitoring filtration, flow, and level in various industrial applications. |
| subcategory | Differential pressure gauge |
| certifications | CRN; CE; EAC; PAC Ukraine; PAC Russia |
| explosion protection | II 2G Ex h IIC T6 ... T1 Gb X; II 2D Ex h IIIC T85 °C T450 °C Db X; Ex h Gas II 2G Ex h IIC T6 ...T1 Gb X; Dust II 2D Ex h IIIC T85 °C T450 °C Db X; EAC; ATEX directive Hazardous areas - Ex h Gas II 2G Ex h IIC T6...T1 Gb X, Dust II 2D Ex h IIIC T85℃ T450℃ DbX |
| ambient temp | -10 … 70 °C |
| ip rating | IP65 |
| weight kg | 1.3 |
| languages in datasheet | en; de |
| pressure ranges | 0 … 160 mbar; 0 … 250 mbar; 0 … 400 mbar; 0 … 600 mbar; 0 … 1000 mbar; 0 … 0.25 bar; 0 … 0.4 bar; 0 … 0.6 bar; 0 … 1 bar; 0 … 1.6 bar; 0 … 2.5 bar; 0 … 4 bar; 0 … 6 bar; 0 … 10 bar; -12.5 … 12.5 kPa; 0 … 16 kPa; 0 … 25 kPa; 0 … 40 kPa; 0 … 60 kPa; 0 … 100 kPa; 0 … 160 kPa; 0 … 250 kPa; 0 … 400 kPa; 0 … 600 kPa; 0 … 1000 kPa; 0 … 0.025 MPa; 0 … 0.04 MPa; 0 … 0.06 MPa; 0 … 0.1 MPa; 0 … 0.16 MPa; 0 … 0.25 MPa; 0 … 0.4 MPa; 0 … 0.6 MPa; 0 … 1 MPa |
| accuracy class | 1.6 |
| accuracy standard | EN 837-1 |
| process connections | 2 x G ¼, female thread, centre distance 26 mm; 2 x G ¼ B, male thread, centre distance 26 mm; 2 x compression fitting with ferrule for pipe ∅ 6 mm; 2 x compression fitting with ferrule for pipe ∅ 8 mm; 2 x compression fitting with ferrule for pipe ∅ 10 mm; 2xG1/4, female thread, centre distance 26 mm; 2xG1/4B, male thread, centre distance 26 mm; 2x compression fitting with ferrule for pipe Ø6 mm; 2x compression fitting with ferrule for pipe Ø8 mm; 2x compression fitting with ferrule for pipe Ø10 mm |
| case material | Aluminium; Stainless steel 1.4571; EN AC-AI Si9Cu3(Fe) |
| wetted parts material | Stainless steel 1.4571; Copper alloy; Steel; Aluminium; Aluminium, Al Si9Cu3(Fe); Aluminium, AlSi9Cu3(Fe), black painted |
| sealing material | FPM/FKM; NBR |
| dial size mm | 100 |
| process temp | -10 … 90 °C |

## Datasheet tables

| 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
| Measuring chamber material | Working pressure indication | Ex approval |  |  |
| Aluminium | Stainless steel | Without | Ø 22mm |  |
| x |  | x |  | Option |
| x |  |  | x | - |
|  | x | x |  | Option |

### Basic information

| 1 | 2 |
|---|---|
| Nominal size |  |
| Differential pressure display | Ø100mm |
| Working pressure indication | ■ Without ■ Ø22mm |
| Window | Plastic, with plug screw for switch point setting |
| Case version | Display case, aluminium, EN AC-AI Si9Cu3(Fe) |
|  | →Measuring chamber, see table 'measuring element' |

### Measuring element

| Type of measuring element | 2 |
|---|---|
| Differential pressure display | Measuring chamber with diaphragm and media chambers⊕and⊖ |
| Working pressure indication | ■ Without ■ Bourdon tube |
| Material |  |
| Measuring chamber (differential pressure display) | ■ Aluminium, EN AC-Al Si9Cu3(Fe), black painted ■ Stainless steel 1.4571 |
| Diaphragms, sealings | ■ FPM/FKM ■ NBR |
| Bourdon tube (working pressure indication) | Copper alloy |
| Leak tightness of measuring chamber | Helium tested, leakage rate: < 5∙10 -3 mbar l/s |

### Accuracy specifications

| 1 | 2 |
|---|---|
| Accuracy class |  |
| Differential pressure display | ■ 2.5 ■ 1.6 (only selectable for scale ranges from 0 ... 1 bar to 0 ... 10 bar) |
| Working pressure indication | 4 |
| Temperature error | On deviation from the reference conditions at the measuring system: max. ±0.8 %/10 K of full scale value |
| Zero point setting | External, via adjustment screw under the window |
| Reference conditions |  |
| Ambient temperature | +20 °C |

| Scale range mbar | psi |
|---|---|
| 0 ... 160 | 0 ... 5 |
| 0 ... 250 | 0 ... 15 |
| 0 ... 400 | 0 ... 25 |
| 0 ... 600 | 0 ... 40 |
| 0 ... 1,000 | 0 ... 60 |
| bar | kg/cm 2 |
| 0 ... 0.25 | 0 ... 0.25 |
| 0 ... 0.4 | 0 ... 0.4 |
| 0 ... 0.6 | 0 ... 0.6 |
| 0 ... 1 | 0 ... 1 |
| 0 ... 1.6 | 0 ... 1.6 |
| 0 ... 2.5 | 0 ... 2.5 |
| 0 ... 4 | 0 ... 4 |
| 0 ... 6 | 0 ... 6 |
| 0 ... 10 | 0 ... 10 |
| kPa | MPa |
| -12.5 ... +12.5 | 0 ... 0.025 |
| 0 ... 16 | 0 ... 0.04 |
| 0 ... 25 | 0 ... 0.06 |
| 0 ... 40 | 0 ... 0.1 |
| 0 ... 60 | 0 ... 0.16 |
| 0 ... 100 | 0 ... 0.25 |
| 0 ... 160 | 0 ... 0.4 |
| 0 ... 250 | 0 ... 0.6 |
| 0 ... 400 | 0 ... 1 |
| 0 ... 600 |  |
| 0 ... 1,000 |  |

| Logo | Description | Country |
|---|---|---|
| - | CRN Safety (e.g. electr. safety, | Canada |

| Logo | Description | Country |
|---|---|---|
|  | EU declaration of conformity | European Union |
|  | Hazardous areas - Ex h Gas II 2G Ex h IIC T6 ...T1 Gb X Dust II 2D Ex h IIIC T85 °C T450 °C Db X EAC | Eurasian Economic Community |
|  | Ex Ukraine Hazardous areas | Ukraine |
|  | PAC Russia Metrology, measurement technology | Russia |
| - | PAC Ukraine Metrology, measurement technology | Ukraine |

### Certificates

| Certificates | ■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. indication accuracy) |
|---|---|
| Recommended recalibration interval | 1 year (dependent on conditions of use) |

| Model | 2 | Description | Order number |
|---|---|---|---|
|  | - | Panel mounting flange, aluminium | 14074004 |
|  | Panel mounting flange, stainless steel | 14075088 |  |
|  | 910.17 | Sealings →See data sheet AC 09.08 | - |
|  | 910.15 | Syphons →See data sheet AC 09.06 | - |
|  | IV3x | 4-way valve block, stainless steel →For dimensions see page 8 | 2043559 |
|  | 4-way valve block, brass →For dimensions see page 8 | 2043567 |  |
|  | - | Compression fittings with ferrule or clamp ring for pipe diameters 6, 8 and10mm 6, 8 and10mm | On request |

## Documents

- [ds_pm0720_en_co_4d0ed7](https://avigan.com.ua/wika/docs/wika/ds_pm0720_en_co.pdf) — PDF, 778 KB, en