APPLICATIONS
Differential pressure measurement with a high differential pressure overload and/or high working pressures (static pressures), also in aggressive ambient
For gaseous, liquid, viscous and aggressive media
Monitoring and control of pumps
Filter monitoring
Level measurement in closed tanks
DESIGN
High over pressure safe on either sides
Pressure rating PN40,100, 250 or 400
Hydraulic cushioning protection against rapid pressure changes
The torque pipe seals with bearing , assures a frictionless path
Overpressure protection in both directions up to the max static pressure rating.
CASE DIAMETER
4”(10) and 6”(160mm)
ACCURACY CLASS (1)
Stainless steel AISI 316L : 1.6
Monel 400(2.4360) : 2.5
Hastelloy C 276 : 1.6
(1) at 20°C and zero static pressure
SCALE RANGES
0...60 mbar to 0...160 mbar (gauge body DN140)
0…250 mbar (gauge body DN100)
0...0.4 bar to 0...40 bar (gauge body DN88)
Or equivalent other units of pressure, vacuum or combined pressure and vacuum
OVER PRESSURE SAFETY AND MAX. STATIC PRESSURE
Max. static pressure on either side : 40,100, 250, or 400 bar
Overpressure safety 400 bar only for ranges : 0...0.4 bar to 0...40 bar
OPERATING TEMPERATURE
Ambient : - 20/ + 60 °C
Process fluid : + 100°C max.
TEMPERATURE ERROR
± 0.6 % / 10K of full scale value, when temperature of the pressure element deviates from +20°C
ZERO SHIFT
Max. ± 2% at 20°C and max static pressure
PROTECTION CLASS
IP 65 – EN 60529/IEC 529
STANDARD FEATURES MEASURING FLANGES
Stainless steel AISI 316L
PROCESS CONNECTION
2 x 1/4 ” NPT-Female (EN 837) Lower
PRESSURE ELEMENTS
Double diaphragm
Ranges:
≤16 bar Stainless steel 316L
>16 bar Inconel 718
Internal stop without o-ring
DIAPHRAGM SEALING RINGS
FPM(Viton®)
PURGING PLUGS
2 x 1/4 ” NPT-M
Stainless steel AISI 316L
BOLTS
Stainless steel AISI 304 (PN100 bar max.)
Alloy steel zinc flake coated , ROHS complaint
(PN 250 and 400 bar)
MOVEMENT
Stainless steel with bearing
DIAL
Aluminum with black markings on white background
POINTER
Adjustable, black aluminum
External zero adjustment with filled case and/or electrical contact or diaphragm seals
CASE AND RING
Material : stainless steel AISI 304
Style : bayonet ring
WINDOW
Laminated safety glass ,1.6”(4mm) thickness
CHAMBER FILLING FLUID
Silicone oil
MOUNTING
Stem mounting
Symbols (+) higher pressure and(-) lower pressure engraved on body identify pressure entries
OPTIONS
Case and ring AISI 304 5”(125 mm) USA type
Case and ring AISI 316 4” and 6”
Scale range 0…40 mbar (dial arc 180°)
Other threaded process connections
Connection at 12 o’clock
Capillary cooling when pressure medium temperature > 100°C
Panel mounting flange with 2”pipe bracket
Surface mounting flange
2”pipe mounting bracket stainless steel AISI 304 or 316
Plastic window (not in ATEX execution)
Special dial layout
Glycerin filled case (+15/+60°C)
Silicone oil filled case (- 40/+60°C)
Other chamber filling fluid such as compatible with food processes or for oxygen service (static pressure max.100 bar)
Pressure equalizing valve 3 or 5way
Maximum reading pointer
Stainless steel tag plate
Wetted part component sin Alloy 400 or Hastelloy C 276
Diaphragm Alloy 400, Hastelloy C 276
Electric contacts (3)
Diaphragm seals for range ≥DP 250 mbar (4)
ATEX execution II2GDc
Notes
3) ATEX execution : contact under dial see drawings, inductive contact :
PTB 99 ATEX 2219X / PTB 00 ATEX 2049X, ZELM 03 ATEX 0128X,
for further information please see data sheet CE electrical contacts
4) Large volume diaphragm seal for DP