PDD Series Double Diaphragm Differential Pressure Gauge
Category:
Features
High steady
Static pressure: 10 MPa
Capillary diaphragm
Many mounting types
Application
Double Diaphragm Differential Pressure Gauges mainly used for measuring the difference between two pressure values, in the plus and minus ends of filter, the level of liquid, the entrance and exit of pump, oil pipeline, gas pipeline and high pressure pump station and so on
| Specifications | |
| Dial | 4" (100mm), 6" (150mm) |
| Case Material | SS304 |
| Lens | Laminated Safe Glass |
| Connection | 1/4" NPT, 1/2" NPT Thread Inside (without 3-way Manifold) |
| Internals / Movement | SS304 |
| Diaphragm Material | 316L (for Negative Pressure) 316Ti (for Positive Pressure) |
| Standard Differential Rangs | 16 kPa, 40 kPa, 60 kPa to 600 kPa |
| Over Pressure Protection | 10 MPa |
| Pointer | Zero Adjustable Black Aluminum Pointer |
| Mounting Type | Lower Connection with Black Mounting Bracket (AH) Pipe Clamp Mounting (GK) |
| Unit Option | psi, bar, kg/c㎡, kPa, MPa, atm, etc. |
| Accuracy | ±1.6%, ±2.5% (1.6% Available if Range Above 0.1 MPa) |
Product Image & Drawing

| Dial Size | D1 | D2 | B1 | B2/B3 | A | H |
| 4" | 4.370" (111mm) |
3.819" (97mm) |
2.008" (51mm) |
3.937" (100mm) |
2.126" (54mm) |
5.551" (141mm) |
| 6" | 5.886" (149mm) |
5.787" (147mm) |
2.165" (55mm) |
3.937" (100mm) |
2.126" (54mm) |
6.220" (158mm) |
Product Type Selection
| Select Code (#) |
Order Type (Series) |
Dial (D) |
NPT Connection (C) |
Range & Unit (R) |
| 1 | PDD | 4" (100mm) | 1/2" AH | 0/100psi & 0/7bar |
| 2 | 6" (150mm) | 1/2" GH | 0/16 kPa | |
| 3 | 0/40 kPa | |||
| 4 | 0/60 kPa | |||
| 5 | 0/100 kPa | |||
| 6 | 0/160 kPa | |||
| 7 | 0/250 kPa | |||
| 8 | 0/400 kPa | |||
| 9 | 0/600 kPa | |||
| 10 | Other Ranges Upon Request |
P/S: AH: Lower Connection with Back Mounting Bracket; GH: Pipe Dlamp Mounting
To Order Double Diaphragm Differential Pressure Gauge
| Select Code | Series | D1 | C1 | R1 |
| Order Type | PDD- | |||
| Dial | 4" (100mm) | |||
| NPT Connection | 1/2" AH | |||
| Range & Unit | 0/100psi & 0/7bar |
For the example indicated above, for product code PDD-D1C1R1, the specs of the double diaphragm differential pressure gauge selected are:
PDD Series, 4" (100mm) Dial, 1/4" NPT, 1/2" AH, 0/100psi & 0/7bar Range.
Keywords: PDD Series Double Diaphragm Differential Pressure Gauge
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