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欧标安全型超压保护仪表P256系列

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产品描述

Service intended

P256 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. Suitable for protection against damage to the measuring element when high overpressure is applied to the gauge instantaneously. Max overpressure is up to 4 times of measuring range.

Nominal diameter	100 and 160 mm
Accuracy	±1.0 % of measuring range
Scale range (MPa, kPa, bar)	-0.1 ~ 0 to 0 ~ 4 MPa
Working pressure	Steady : 100 % of full scale Over range protection : 4 times the measuring range
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 * NOTE : P256 series is not applied with diaphragm seal.

Standard features

Pressure connection	Stainless steel (316SS)
Element	Stainless steel (316SS)
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 overpressure range indicated by a black sector
Pointer	Black painted aluminium alloy
Process connection	½", ⅜" PT, NPT and PF
Option	Zero adjustable pointer Pressure connection and element : Monel Case and cover material : 316SS