P257 Series_Euro gauge Safety pattern type pressure gauge
Service intended
P257 series are made with a solid plate wall and a blow-out back. Its stainless steel case and cover have a good appearance. It has the excellent proof against corrosion and chemical attack.
| Nominal diameter | 63, 100 and 160 mm |
| Accuracy | P2572 (63 mm) : ±1.6 % of full scale P2574 (100 mm) and P2576 (160 mm) : ±0.5 % of full scale ±1.0 % of full scale |
| Scale range (MPa, kPa, bar) | 63 mm : -0.1 ~ 0 to 0 ~ 100 MPa 100 and 160 mm : -0.1 ~ 0 to 0 ~ 200 MPa |
| Working pressure | Steady : 75 % of full scale (63 mm) 100 % of full scale (100 and 160 mm) Over range protection : 130 % of full scale |
| Working temperature | Ambient : -40 ~ 65 ℃ -20 ~ 65 ℃ (With glycerin filling) -40 ~ 65 ℃ (With silicone filling) Fluid : Max. 200 ℃ Max. 100 °C (With glycerin filling) Max. 100 ℃ (With silicone filling) |
| Degree of protection | EN60529/IEC529/IP67 |
| Temperature effect | Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately ±0.4 % per 10 ℃ of full scale |
Standard features
| Pressure connection | Stainless steel (316SS) |
| Element | Stainless steel (316SS) 63 mm : <6 MPa : C type bourdon tube ≥6 MPa : Helical type bourdon tube 100 and 160 mm : <10 MPa : C type bourdon tube ≥10 MPa : Helical type bourdon tube |
| Case | Stainless steel (304SS) |
| Cover | Stainless steel (304SS) Bayonet type |
| Blowout protection | Solid front Blow-out back |
| Window | Laminated safety glass |
| Movement | Stainless steel |
| Dial | White aluminium with black graduations |
| Pointer | Black painted aluminium alloy |
| Process connection | 63 mm : ⅛”, ¼” PT, NPT and PF 100 and 160 mm : ¼”, ½”, ⅜” PT, NPT and PF |
| Certificates | Pressure equipment directive (2014/68/EU)-Annex III Module H ATEX II 2G Ex h IIC T6…T1 Gb ATEX II 2D Ex h IIIC T85°C….T450°C Db |
| Option | Zero adjustable pointer (Only available with diameter 100 and 160 mm) Zero adjustment (External) : 100 and 160 mm Pressure connection and element : Monel (Only available with diameter 100 and 160 mm) |
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