P401 ِDiaphragm Pressure Gauges

  • APPLICATION

For measuring points with increased over pressure

For gaseous , liquid and aggressive media , also in aggressive ambience

With liquid filled case for application swithhigh dynamic pressure loads or vibrations

With the open flange connection optional so for viscous media

Process industry : chemical / petrochemical, power stations ,mining, on and offshore , environmental technology, machine building and general plant construction

 

  • SPECIAL FEATURES

High over pressure safety

All stainless steel construction

Wide choice of special materials

Process connection thread or flange

Scale ranges from 0…10 mbar

  • STANDARD FEATURE SDESIGN

EN837-3

  • CASE DIAMETER

4”(100) and 6”(160mm)

  • ACCUR ACYCLASS

1.6

  • SCALE RANGES

0...10 to 0...16 mbar ,flange Ø 6.85” (Ø174mm)

0...25 to 0...250 mbar ,flange Ø 6” (Ø150mm)

0...0.4 to 0...40 bar (flange Ø 4”Ø100mm)

Or equivalent other units of pressure or vacuum

  • PRESSURE LIMITATION

Steady : full scale value

Fluctuating : 0.9 x FSV

  • OVER PRESSURE SAFETY

1.3 full scale value

  •  OPERATING TEMPERATURE

Ambient : - 20 / + 60°C

Medium : +100°C maximum

Storage : - 40 / +70 °C (scale ranges ≤ 60mbar : - 20 / +70°C)

  • TEMPERATURE EFFECT

When temperature of the measuring system deviates from reference temperature (+20°C) max error ±0.8% /10K of full scale value

  • INGRESS PROTECTION

IP 65 – EN 60529 / IEC 529

Without / with liquid filling

  • PRESSURE CHAMBER

AISI 316 stainless steel lower and upper diaphragm housing

  • PROCESS CONNECTION

AISI 316L stainless steel

Thread size 1/2” BSP or NPT

  •  PRESSURE CHAMBER SEALING

FPM/FKM

  • PRESSURE ELEMENT

≤16 bar AISI 316L stainless steel

>16 bar Inconel 718

  • DIAL

Aluminum with black markings on white background

Dial arc 270°

  • CASE AND RING

AISI 304 stainless steel

Bayonet ring style

With pressure relief in case back

Filling plug on top

  • MOVEMENT

Stainless steel

  • POINTER

Adjustable, black aluminum

  • WINDOW

Laminated safety glass

  • MOUNTING

Lower connection

  • OPTIONAL EXTRAS

Other process connection

Case and ring AISI316 stainless steel

Over pressure safe : 5 x FSV, max.40 bar

Over pressure safe : 10 x FSV, max.40bar

Vacuum safe up to -1bar

Max. medium temperature +200°C(NOT for ATEX version)

Ambient temperature - 40 / +60°C (silicone oil filling)

Higher accuracy class1.0

Open flange connection per UNIEN/ASME

Wetted parts lined/coated with special materials : PTFE , Hastelloy C 276, Monel

Glycerin case filling

Silicon oil case filling

Electric contact (see CE data sheet)

Bracket for surface mounting

Flushing plug on lower body(ranges≥400mbar)

Cleaning for oxygen service

Customer designed dials

Dial tag marking

ATEX execution

Version ATEX(with inductive contacts)  II2GDc 

  • SPECIAL VERSION

Over pressure safety up 40 or 100 bar model P400.40/P400.100

High over pressure safety up to 400 bar special version with case solid front 


Stainless Steel Corrosion-Proof Diaphragm  Gauges

  • CASE DIAMETER

           4”(100) and 6”(150mm)

  • ACCURACY CLASS

           1.6

  • SCALE RANGE

            0…25 to 0…400 mbar 0…0.4 to 0…25 bar

            Or equivalent other units of absolute pressure

  • OVER PRESSURE  SAFETY

            Standard : 5 x full scale value , 25 bar max.

  • OPERATING  TEMPERATURE

            Ambient:

            - 25 / +65°C without liquid filling

            - 20 / +60°C with liquid filling

            Medium:

            + 200°C max. without liquid filling

            + 100°C max. with liquid filling

  • TEMPERATURE  EFFECT

           When temperature of the measuring system deviates from reference temperature

           (+20°C) max error ± 0.4% /10K of true scale value

  • STANDARD FEATURES
  • PROCESS  CONNECTION

           AISI 316L stainless steel

           Thread size1/2 “ BSP or NPT

  • PRESSURE  ELEMENT

           AISI 316 stainless steel diaphragm

  • PRESSURE CHAMBER

           AISI 316 stainless steel lower and upper diaphragm housing

  • SEALING BELLOW

           AISI 316 stainless steel

  • PIVOT

           AISI 303 stainless steel

  • MOVEMENT

           AISI 304 stainless steel ,rotary geared

  • DIAL

           Aluminum with black markings on white background

           Dial arc 270°C

  • POINTER

           Adjustable , black aluminum

  • CASE AND RING

           AISI 304 stainless steel 

           Bayonetring style with pressure relief in case back

           Filling plug on top

  • INGRESS  PROTECTION

           IP65EN 60529 / IEC 529

  • WINDOW

           Glass 0.16 "(4mm) thickness

  • GASKET

           Neoprene rubber

  • MOUNTING

           Lower connection

 

  • OPTIONAL EXTRAS

           Other process connection 

           Case andring AISI316 stainless steel

           Hastelloy C 276 diaphragm

           Glycerin case filling (ambient temperature +15/+60 °C)

           Silicon oil case filling (ambient temperature – 40/+60°C)

           Electric contacts (seeCE data sheet)

           Plastic window

           Customer designed dials

           Dial tag marking

 


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