Diaphragm Seal Gauge with Welded Construction & Screwed Connection
The Budenberg WSE is a high-integrity Diaphragm Seal Gauge that has been designed to withstand the high pressures and temperatures normally associated with Chemical and Oil / Gas applications. The WSE has an all-welded construction thereby eliminating many potential leak paths and providing a screwed process connection in a range of sizes up to 1”.
Its unique feature is the ability to set the diaphragm to ‘lock off’ at set pressures thereby protecting the unit from major overload conditions up to and including 400 Bar. This eliminates the need for expensive overload protection valves.
The WSE is available in a wide range of options including a choice of dial sizes, connections, materials, filling fluids, and options to permit operation at temperatures in excess of 440°c.
It has been designed for continuous operation on gases or liquids where the pressure element could become corroded or clogged by the process media. Versions are available to withstand pressure pulsations, vibrations, and operation at very high temperatures.
contact us for pricing and availability of the Budenberg WSE Diaphragm Seal Gauge
The Budenberg WSE is suitable for the following applications/industries
Designed for continuous operation on gases or liquids where the pressure element could become corroded or clogged by the process media. Versions are available to withstand pressure pulsations, vibrations, and operation at very high temperatures.
 Food & Beverage
Pressure Gauge
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 Pharmaceutical
Pressure Gauge
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The Budenberg WSE specifications
| Size | 63mm (2.5"), 100mm (4"), 150mm (6") |
| Accuracy Class |
1.0% as defined in EN837
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| Pressure Range |
The welded seal units is available in a range of configurations depending on the required Dial Size and Operating Pressure range as follows:
63mm - Seal Diameter - 42mm / Min Range - 1 Bar / Max Range - 400 Bar
100/150mm - Seal Diameter - 42mm / Min Range - 5 Bar / Max Range - 400 Bar
100/150mm - Seal Diameter - 69mm / Min Range - 1 Bar / Max Range - 400 Bar
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| Over Range Protection |
All units will withstand 130% overload as standard up to 200 Bar. Optionally the diaphragm can be set to 'lock off' allowing the unit to withstand an overload up to the maximum pressure rating of the seal unit. This unique feature can be used to avoid the use and cost of additional overload protection valves.
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| Materials of Construction | Due to the welded construction, all materials including the diaphragm and connection have to be the same material.
Standard - 316L Stainless Steel
Options (SEE-R) - Hastelloy C276, Titanium or Monel 400.
Other materials are available on request.
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| Process Connections |
Model WSE has male connections of:
1/4", 3/8", 1/2", 3/4", 1" BSP or NPT
Model WSI hs female connections of:
1/4", 3/8", 1/2", 3/4" BSP or NPT
Other connections are also available
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| Filling Fluids |
A wide range of filling fluids is available to suit most applications including high-temperature and pharmaceutical applications.
Standard Options - Mineral Oil, Silicon HT Oil, Medicinal Paraffin, Glycerine, Syltherm XLT & 400.
Inert Fluorine-based fluids can be specified for oxygen and chlorine applications as well as a range of FDA-approved fluids for food and pharmaceutical applications.
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| Temperature |
Normal process operating temperature range: -20 to +100°c
Elevated temperature operation up to 450°c can be achieved by the selection of an extended neck option and an associated high-temperature filling fluid.
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| Certification & Traceability |
Serial Number Printed on Dial.
A certificate of Conformity traceable to National Standards is supplied
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| Safety | All units are manufactured to comply with EN837-1, S3 Specification, and other regulatory standards including PED. |
Design Note: the WSE-R is of a round construction with 2 flats milled in the upper chamber for installation, whilst the WSE has a hexagon.
WSE Specification Sheet Download
To view all the information on the Budenberg WSE you can download the datasheet here