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Mechanical Pressure Gauges
This device program offers a selection of indicating and controlling pressure gauges for several fields of application.
The pressure gauges contain measuring components which deflects elastically undetr influence of a compression. This deflection movement is transmitted onto a needle mechanism. Depending on application, devices suitable are with bourdon tube spring, diaphragm or capsule element measurement system.
All pressure gauges are produced in accordance with the valid DIN/EN standards.
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Bourdon Tube Pressure Gauge Type MRE
Brass Connection
Application range
Gaseous and liquid, non-high viscous, non-crystallizing media, also applicable under aggressive environmental conditions
Version: EN 837 - 1
Nominal case size
- 100, 160, 250
Accuracy
- 1.0 ( EN 837 - 1/6 )
Pressure ranges
- EN 837 - 1/5
( 0...0,6 bar up to 0...1600 bar )
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
- short-term: 1,3 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +60°C ( soldered )
+100°C ( brazed )
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Bourdon Tube Pressure Gauge Type MRE
Chemical version
Application range
Gaseous and liquid, non-high viscous, non-crystallizing media, also applicable under aggressive process media and environmental conditions
Version: EN 837 - 1
Nominal case size
- 100, 160, 250
Accuracy ( EN 837 - 1/6 )
- NG 100, 160: 1.0 ( EN 837 - 1/6 )
Pressure ranges ( EN 837 - 1/5 )
- EN 837 - 1/5: 0...0,6 bar up to 0...1600 bar
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
- short-term: 1,3 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +100°C
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Stainless steel version
Connection material
- stainless steel 1.4571
Bourdon tube type
- up to 40 bar: circular spring 1.4571,
welded with shielding gas
- up to 60 bar: screw spring 1.4571,
welded with shielding gas
Movement
- stainless steel 1.4301
Dial
- aluminium white, scaling black
Casing
- stainless steel 1.4301
Window
- laminated safety glass
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Bourdon Tube Pressure Gauge Type MRE
Standard version
Bourdon Tube Pressure Gauge Type MRE
Standard version
Application range
Gaseous and liquid, non-high viscous, non-crystallizing media, in stainless steel version also applicable under aggressive process media and environmental conditions
Version: EN 837 - 1
Nominal case size
- 63
Accuracy ( EN 837 - 1/6 )
- 1,6 0/400 bar
- 2,5 0/600 bar standard version
0/100 bar chemical version
Pressure ranges ( EN 837 - 1/5 )
- 0...0,6 bar up to 0...1000 bar
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
- short-term: 1,3 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +60°C ( soldered )
+100°C ( brazed )
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
Connection
- brass at the bottom or at the rear off-center
( EN 836 - 1/7,3
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Bourdon Tube Pressure Gauge Type MRS
Application range
Gaseous and liquid, non-high viscous, non-crystallizing media
Version: EN 837 - 1
Nominal case size
- 160, 250
Accuracy
- 1.0 ( EN 837 - 1/6 )
Pressure ranges
- EN 837 - 1/5
0...0,6 bar up to 0...1600 bar
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
- short-term: 1,3 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +60°C ( soldered )
+100°C ( brazed )
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Bourdon Tube Pressure Gauges with Limit-Switch Contact Assemblies
Type MRS case mild steel
Type MRE case stainless steel 1.4301
Electrical connection
Pressure gauges Type MRS with electro - mechanical contact devices ( standard or magnet contact ) are delivered ex factory with connection cable in the rear of the case and 1 m cable length.
Instruments with fixing edge at the rear show an exception, the cable bushing is at the righthand side.
Generally all pressure gauges Type MRE and pressure gauges with oil filling are delivered with pin-and-socket connector at the righthand side of the case.
An exception are pressure gauges to be installed in panels, the plug connector is positioned in the rear wall.
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Bourdon Tube Test Pressure Gauge Type MFE
Application range
Gaseous and liquid, non-high viscous, non-crystallizing media
Nominal case size
- 160, 250
Accuracy
- 0,6 ( EN 837 - 1/6 )
Pressure ranges
- EN 837 - 1/5
0...0,6 bar up to 0...1600 bar
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
- short-term: 1,3 x full scale value
Adjustment medium
- < 25 bar: gas
- >25 bar: oil
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +100°C
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Bourdon Tube Test Pressure Gauge Type MFS
Application range
Gaseous and liquid, non-high viscous, non-crystallizing media
Nominal case size
- 160, 250
Accuracy
- 0,6 ( EN 837 - 1/6 )
Pressure ranges
- EN 837 - 1/5
0...0,6 bar up to 0...1600 bar
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
- short-term: 1,3 x full scale value
Calibration medium
- < 25 bar: gas
- >25 bar: oil
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +60°C ( soft - soldered )
+100°C ( brazed )
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Capsule Element Pressure Gauge Type MKE
Application range
Gaseous, dry media, also applicable under aggressive process media and environmental conditions.
Version: EN 837 - 3
Nominal case size
- 100, 160
Accuracy
- 1.6 ( EN 837 - 3/6 )
Pressure ranges: EN 837 - 3/5
- 0...2,5 mbar up to 0...600 mbar
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +100°C
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Capsule Element Pressure Gauge Type MKS
( Type MKE, DN 100 )
Brass Connection
Application range
Gaseous, dry and non-aggressive media
Version: EN 837 - 3
Nominal case size
- 100, 160
Accuracy
- 1.6 ( EN 837 - 3/6 )
Pressure ranges: EN 837 - 3/5
- 0...2,5 mbar up to 0...250 mbar
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +80°C
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Diaphragm Pressure Gauge Type MPE
stainless steel version
Application range
Gaseous and fluid media, with option 'open measurement flange', also applicable with polluted and viscous media.
Version: EN 837 - 3
Nominal case size
- 100, 160
Accuracy
- 1,6 ( EN 837 - 3/6 )
Pressure ranges ( EN 837 - 3/5 )
- 0...10 mbar up to 0...250 mbar
( flange 160 mm dia )
- 0...0,6 bar up to 0...25 bar
( flange 100 mm dia )
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- 5 x full scale value, 40 bar max
Temperature limitations
- Environment: Tmin: -25°C, Tmax: +60°C
- Measurement agent: Tmax: +100°C
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,5% / 10 K
- temperature decrease: about -0,5% / 10 K
of the respective scale value
Protection class:
- IP 54 ( EN 60 529 / IEC 529 )
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Diaphragm Pressure Gauge Type MPS
Application range
Gaseous and liquid media, with option 'open measurement flange', also applicable with polluted and viscous media.
Version: EN 837 - 3
Nominal case size
- 100, 160
Accuracy
- 1,6 ( EN 837 - 3/6 )
Pressure ranges ( EN 837 - 3/5 )
- 0...10 mbar up to 0...250 mbar
( flange 160 mm dia )
- 0...0,6 bar up to 0...25 bar
( flange 100 mm dia )
- as well as all equivalent ranges for negative
and/or negative and positive excess pressure
Technical range
- < 0,6 bar: 5 x full scale value
- > 0,6 up to 2,5 bar: 3 x full scale value
- > 2,5 bar: 5 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +100°C
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,5% / 10 K
- temperature decrease: about -0,5% / 10 K
of the respective scale value
Protection class:
- IP 45 ( EN 60 529 / IEC 529 )
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Diaphragm Pressure Gauges with Limit-Switch Contact Assemblies
Type MPS case mild steel
Type MPE stainless steel case 1.4301
Electrical connection
Pressure gauges of Type MPS with electro-mechanical contact devices ( standard or magnet contact ) are delivered ex factory with connection cable in the rear wall of the casing and 1 m cable length.
Generally all pressure gauges of Type MPE and pressure gauges with oil filling are delivered with plug connector at the right-hand side of the casing.
An exception are pressure gauges to be installed in panels, the plug connector is positioned in the rear wall.
Pressure gauges with inductive contact have a cable connecting box.
If the plug connector is installed at the rear side of an instrument of nominal size NG 100, a Blow-out ( 25 mm dia ) cannot be installed.
The adjacent sketches show the precise position of connection cable and plug connectors.
The plug connector has 6 pins and one earth terminal. The terminal box has 6 terminals only.
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Differential Bourdon Tube Pressure Gauge Type MDS
Application range
Measurement of differential pressure or two different excess pressures. Gaseous and fluid, non-high viscous, non-crystallizing media.
Nominal case size
- 100, 160
Accuracy
- 1.6 ( EN 837 - 1/6 )
Pressure ranges: EN 837 - 1/5
- 0...0,6 bar up to 0...600 bar twin scale bar/m WS
Select the required reading range depending on t
he maximum possible total pressure!
In heating systems with circulating pump operation,
the total excess pressure is normally equal to the
hydrostatic pressure plus the pump pressure.
Technical range
- static load: full scale value
- fatigue load: 0,9 x full scale value
- short-term: 1,3 x full scale value
Temperature limitations
- Ambient: Tmin: -25°C, Tmax: +60°C
- Medium: Tmax: +60°C (soft-soldered)
+100°C (brazed)
Temperature dependence
Reading error in case of deviation from standard temperature by 20°C at the measurement system:
- temperature increase: about +0,3% / 10 K
- temperature decrease: about -0,3% / 10 K
of the respective scale value
Protection class:
- IP 33 ( EN 60 529 / IEC 529 )
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Contact Devices
Pressure gauges with contact devices are only avaliable with nominal diameter of the casing of 100 mm or 160mm.
We distingiush the following structural shapes:
1. electro -mechanical limit contacts
1.1 standard contact ( S )
1.2 magnet contact ( M )
2. inductive limit contact ( I ) |
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Siphons DIN 16 282
Application
Siphons are used to protect pressure gauges against pulsation of the medium and overheating.
A siphon is installed at the thread connection of the pressure gauge or at the upstream fitted stop valve.
A condensate is formed in the bend of the siphon, which prevents the hot medium from reaching the pressure measuring instrument. We recommend to fill in a cooling liquid.
Siphon U-shape 16 282, shape A
inlet: connecting stud DIN 16 282 shape 4
G 1/2 to the right
with clamping sleeve DIN 16 283
outlet: connection stud DIN 16 282 shape 6
G 1/2 to the left
with clamping sleeve DIN 16 283 G 1/2 right-left
Siphon U-shape 16 282, shape B
inlet: welding end
outlet: connection stud DIN 16 282 shape 6
G 1/2 to the left
with clamping sleeve DIN 16 283 G 1/2 right-left
Siphon circular shape 16 282, shape C
inlet: connecting stud DIN 16 282 shape 4
G 1/2 to the right
outlet: connection stud DIN 16 282 shape 6
G 1/2 to the left
with clamping sleeve DIN 16 283 G 1/2 right-left
Siphon circular shape 16 282, shape D
inlet: welding end
outlet: connection stud DIN 16 282 shape 6
G 1/2 to the left
with clamping sleeve DIN 16 283 G 1/2 right-left
Siphon, standard version, U-shape
pipe dimension 20,0 x 2,6 mm
inlet: male thread R 1/2
outlet: male thread R 1/2
Siphon, standard version, circular shape
pipe dimension 20,0 x 2,6 mm
inlet: male thread R 1/2
outlet: male thread R 1/2
Manometer connection pipes
pipe dimension 20,0 x 2,6 mm
inlet: welding end
outlet: connection stud DIN 16 282 shape 6
G 1/2 to the left
with clamping sleeve DIN 16 283 G 1/2 right-left
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Stop Cocks DIN 16 261 - 16 263
Application
When installing pressure measuring instruments, it is advisable to fit a stop cock between measuring instrument and pipe. You can use stop cocks to measure liquids, gases and vapors with a set-up of measuring instruments which have a permissible service excess pressure of PN 25 and a permissible service temperature of 50°C.
Use stop valves for higher pressure and temperature!
Stop cocks, standard version
DIN 16 261 and DIN 16 262
Cock housing and plug
brass and stainless steel 1.4571
The plug is installed in the casing using silicon - free grease.
Stop cocks with test connection
DIN 16 263
Test connection
Test stud M 20 x 1,5
or test flange dia 40 x 5 mm
or 60 x 25 x 10 mm |
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Stop Valves DIN 16270-16 272
Application
Stop and throttle device for pressure measurement instruments to measure gases, vapors and liquids. Device for zero-point control and replacement of measurement instrument while system is operational.
Versions
- stop valve DIN 16270 without test connection
- stop valve DIN 16271 with test connection
- double stop valves DIN 16272 with seperately
lockable test connection
Each with
shape A with clamping sleeve DIN 16283
shape B with shaft for measurement unit holder,
with nipple and turning sleeve
Stop valve with optional test connection provide simultaneous connection for operating pressure measurement instruments and test pressure measurement instruments in the pressure pipe.
The test boss can be blocked off by a sealing pad and a sealing cover if the valve is designed to DIN 16271.
In case of DIN 16272, a second valve spindle is used for blocking off the boss.
Stop valves are silicon - free.
Standard version
Connection
G 1/2 B acc. to DIN 16288, test connection M20 x 1,5 |
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Throttle Devices, Connecting Pieces
Throttle devices
protect pressure gauges against pressure hammers and pulsation of the medium. They are adjustable and can be adapted to the relevant service conditions.
Connecting pieces
are used to install pressure gauges, stop cocks, stop valves, siphons and other accessory components.
Types of connection pieces
Clamping sleeves
acc. to DIN 16 283 have a right-hand thread (RH) on one end, a left-hand thread (LH) on the other end, thus components can be sealed in any desired position.
Union nut with weld nipple
DIN 16 284
Connecting piece DIN 16 275
with sleeve / stud are used, if the part to be joined has an external thread at one end and an internal thread at the other end. |
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Wall brackets
Application
Wall brackets are used to mount pressure gauges and other indicating devices. Size of overhang depends mainly on the casing diameter and structural height of the instrument, as well as on position and location of the connection.
Pressure gauge supports are designed to take up an adapter.
Wall bracket DIN 16 281
Version:
with wall brackets acc. to DIN 16 281, the holder is designed as a two-part clamp
Shape H, wall installation
materials: cast aluminium, painted black
stainless steel 1.4571, welded
Shape H, wall, pipe and stand installation
materials: malleable iron
Adapter for wall brackets
Connection G 1/2 B / G 1/2 DIN 16 288 and 1/2 NPT,
brass, mild steel, stainless steel 1.4571 |
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