Over Range Protection Valve for Pressure Gauges
The Budenberg model 6GM over-range protection valve has been primarily designed to protect pressure gauges (or other instruments) against over-pressure conditions, either designed or accidental due to the failure of other systems.
The operation of the unit is based upon a piston assembly that can open or close depending upon the applied pressure at the inlet. The unit should be fitted directly to the instrument to be protected. An internal spring holds the valve open under normal conditions. When the inlet pressure exceeds the setting pressure of the valve then the spring is compressed and closes the valve.
Settings are achieved by selecting of the appropriate spring to operate in the correct range and adjustment of the spring adjuster until the desired operational setting is achieved.
Units can be used on any clean, nonviscous fluids or gases that are compatible with the chosen materials of construction.
contact us for pricing and availability of the Budenberg 6GM Protection Valve
The Budenberg 6M Ball Valves are suitable for the following applications/industries
 Oil & Gas
Pressure Gauge
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 Petrochemical
Pressure Gauge
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 Power Generation
Pressure Gauge
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Water & Waste Water
Pressure Gauge
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 Chemical
Pressure Gauge
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The Budenberg 6GM Specifications
| Setting Pressure Ranges |
Units can be set at a range of pressures from 2 to 275 bar (30 to 4000 psi). Setting can be user adjusted within the range of the spring.
NB Factory settings are done on static pressure and as such the unit may require some slight user adjustment to ensure correct operation when under dynamic application conditions.
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| Maximum Working Pressure |
700 bar or 10,000 psi maximum pressure
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| Connection Size |
The standard range is ½” NPT Male inlet x 1/2" NPT Female Outlet
Other connections, including BSP, are available but may be subject to a minimum order quantity
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| Material of Construction (Standard) |
Body - 316 Stainless Steel to NACE
Spring Housing - 316 Stainless Steel to NACE
Piston - 316 Stainless Steel to NACE
Spring Adjuster - 316 Stainless Steel to NACE
Body Seal - 316 Stainless Steel to NACE
O rings - Nitrile - Ethylene Propylene for Skydrol - Viton for NACE
Spring - BS 5216 HS3 Spring Steel, Nickel plated
Other materials can be supplied but may be subject to a minimum batch quantity
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| Spring Selection |
Spring A - setting range of 30 to 150 psi (2 - 10 bar)
Spring B - setting range of 151 to 600 psi (10 - 40 bar)
Spring C - setting range of 601 to 1600 psi (40 - 110 bar)
Spring D - setting range of 1600 to 4000 psi (110 - 275 bar)
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| Temperature | Up to 150 Degrees Celsius |
| Testing |
Set and tested to the required pressure
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| Traceability | Body marked with the setting pressure and model number
When NACE or material certification to EN 10204 3.1b is requested then the body is marked with the cast number and the spring housing is marked with the cast numbers of the housing and piston
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| Options | Customer names are etched on the body, and special designs undertaken |
Over Range Protection Valve Specification Sheet Download
To view all the information on the Budenberg model 6GM you can download the datasheet here