Wesen Technologies (Shanghai) Co., Ltd.
Wesen Technologies (Shanghai) Co., Ltd.
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70mm 35 bar Brass Connection Blue Cover Refrigeration Pressure Gauge for Manifold
Description
Does the temperature shown by the needle always correspond to the temperature of the refrigerant?
Firstly, this is only true if you read the refrigerant temperature on the correct scale. For example, if you measure a pressure in an R22 system, you must read the temperature on the R22 scale, and not on the scales for R12 or R502 (which are other refrigerants).
Secondly, it is, of course, absolutely correct to say that the temperature scales give you the pressure- temperature relationship of the fluid in use. However, don’t forget that this relationship only exist when a change of physical state is taking place.
Applications
Measuring refrigerant ammonia pressure and temperature
Suitable for corrosive environments and gaseous or liquid media that will not obstruct the pressure system
Process industry: chemical/petrochemical, power stations, mining, on and offshore, environmental technology, mechanical engineering and plant construction
Special features
Excellent load-cycle stability and shock resistance
All stainless steel construction
Ammonia refrigerant scales on dial
| Design | EN 837-1 |
| Nominal size | 70mm |
| Accuracy | 1.6, 1.0 |
| Pressure range | 35 bar (customized) |
| Working pressure | 63mm: Steady: 3/4 x full scale value Fluctuating: 2/3 x full scale value Short time: full scale value 100mm: Steady: full scale value Fluctuating: 0.9 x full scale value Short time: 1.3 x full scale value |
| Permissible temperature | Ambient: -40 ... +60 °C - dry; -20 ... +60 °C - glycerine filled -40 ... +60 °C - silicone filled Mediium: +100 °C maximum |
| Ingress protection | IP66 |
| Temperature effect | When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.4%/10 K of the span |
| Process connection | Copper alloy |
| Pressure element | Copper alloy |
| Movement | Copper alloy |
| Dial | Aluminium |
| Pointer | Aluminium |
| Case | Stainless steel |
| Ring | Steel |
| Window | Plastic, glass, safety glass |
| Unit | bar, psi, kg/cm2, kPa, MPa |
| Thread | G, BSP, PT, BSPT, NPT |
| Options | Other process connection thread Surface mounting flange Mounting bracket |
Dimensions
| Size | A | B | C | D | E | J | L | M | N | S | T | W |
| 63mm | 69 | 54 | 32 | 62 | 13 | 3.6 | 7.5 | 85 | 75 | 6.5 | 1/4" | 14 |
| 100mm | 107 | 87 | 48 | 100 | 15.5 | 4.8 | 9 | 132 | 116 | 8 | 1/2" | 22 |
Ordering information
Model / Dial size / Pressure Range / Process connection / Options