P/EB-E
Pressure Relief Valve deflagration- and endurance burning-proof
Features
Extreme Tightness
Resulting in Lowest Possible Product Losses and Reduced Environmental Pollution
Optimal Pressure Maintenance
Set Pressure Close to Opening Pressure for Optimum Pressure Maintenance in the System
Guided Valve Pallet
Valve Pallet Is Guided Inside the Housing to Protect Against Harsh Weather Conditions
Protective System According to ATEX
can Be Used as a Protective System in Areas With Potentially Explosive Atmosphere in Accordance With ATEX
Protected for Alcohol/Air Mixtures
Protected Against Deflagration and Endurance Burning of Alcohol/Air Mixtures From Explosion Group IIB1 and for Products up to Explosion Group IIB3 (NEC Group C MESG ≥ 0.65 mm)
Safety Against Endurance Burning
Protection against Atmospheric Deflagration and Endurance Burning
Intergrated Flame Arrester
Integrated PROTEGO® Flame Arrester Unit Saves Space and Weight and Reduces Costs
Modular Design
Allows Replacement and Cleaning of Single FLAMEFILTER®
Function and Description
Highly Developed Pressure Relief Valve
The
Deflagration
Deflagration
Explosion propagating at subsonic velocity (EN 1127-1:1997).
-Proof
Pressure/vacuum relief valve
Pressure/vacuum relief valve is an umbrella term that includes pressure or vacuum relief valve as well as pressure and vacuum relief valve.
and Endurance-Burning-Proof P/EB-E Type PROTEGO® valve is a highly developed
pressure relief valve
Pressure-relief valve
Valve designed to open and relieve excess pressure and to reclose and prevent the further flow of fluid after normal conditions have been restored.
for large flows with an integrated
Flame Arrester
Flame arrester
Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame.
Unit that is specifically designed for use in ethanol production, processing, and storage. It is primarily used as a
device
Device
A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow.
for
flame transmission-proof
Flame transmission-proof
Characteristic of a device to avoid flashback.
out-breathing on tanks, containers, and process
equipment
Equipment
Machines, appliances, fixed or mobile devices, control parts and accessories, and warning and prevention systems, whether separate or combined, intended for the generation, transfer, storage, measurement, control, and conversion of energy, and for the processing of materials, which have their own potential source of ignition and may cause an explosion.
. The valve offers reliable protection against
overpressure
Overpressure
Overpressure refers to an increase in pressure in a system or vessel above the normal operating pressure.
and prevents
product
Product
Includes equipment, protective systems, devices, components and combinations of these.
losses almost up to the
set pressure
Set pressure
Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions.
, while at the same time protecting against atmospheric deflagration and
endurance burning
Endurance burning
Stabilized burning for an unlimited time.
if
stabilized burning
Stabilized burning
Steady burning of a flame stabilized at, or close to the flame arrester element.
occurs. The PROTEGO® Flame Arrester Unit is designed to achieve minimum pressure drop with maximum safety. The P/EB-E valve is available for substances of
explosion
Explosion
Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously.
group IIB1 (MESG ≥ 0.85 mm) and provides specific protection against deflagration and endurance burning of alcohol/air mixtures (such as Ethanol/air).
Advanced Manufacturing Technology
The valve functions proportional, so the set pressures should be selected in relation to the proportional behavior (such as a 10%, 40%, or 100% overpressure from the set pressure to the
relieving pressure
Relieving pressure
The relieving pressure is the vacuum or overpressure at which the valve reaches the lift required for the mass flow to be discharged.
at which the required flow performance is reached). The
tank pressure
Tank pressure
Tank pressure is the pressure within a tank.
is maintained up to the set pressure with a tightness that is far above the usual standards due to our state-of-the-art manufacturing. This feature is ensured by the valve seats made of high quality stainless steel and with individually lapped valve pallets (1), or with an air cushion
seal
Seal
A seal prevents or limits unwanted transfer of product from one container to another. Seal is used as superordinate term for all types of sealing elements.
(2), in conjunction with high quality FEP
diaphragm
Diaphragm
A diaphragm is a thin layer of material, which has a large surface area.
. The valve pallets are also available with a PTFE seal to prevent the valve pallets from sticking when sticky substances are used and to enable the use of corrosive fluids. After the overpressure is released, the valve re-seats and provides a tight seal.
Many Individual Certifications
If the set pressure is exceeded, explosive gas/product vapor/air mixtures are released into the atmosphere. If this mixture ignites, the integrated PROTEGO® Flame Arrester Unit (3) prevents flame transmission into the tank. If additional mixture continues to flow and stabilized burning occurs, the integrated Flame Arrester Unit prevents
flashback
Flashback
Phenomenon occurring in a flammable mixture of air and gas when the local velocity of the combustible mixture becomes less than the flame velocity, causing the flame to travel back to the point of mixture.
as a result of endurance burning. The valve is protected and also fulfils its function under these severe conditions. The
spring
Spring
A spring is a spiral of wire which returns to its original shape after it is pressed or pulled.
-loaded
weather hood
Weather hood
A weather hood is a cover to protect the internal components of a device from environmental influences.
pens as soon as the
melting element
Melting element
The melting element is a component that consists of a housing with a lower and upper part.
(4) melts.
The valve can be used up to an
operating temperature
Operating temperature
Temperature reached when the equipment is operating under design conditions.
of up to +60°C / 140°F and meets the requirements of European Tank Design Standard EN 14015 (Appendix L) and ISO 28300 (API 2000). EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data
Dimensions
To select the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (DN), please use the flow capacity chart on the following page
| DN | 50 / 2" | 50 / 2" | 80 / 3" | 80 / 3" |
| Set pressure | ≤ +80 mbar | > +80 mbar | ≤ +80 mbar | > +80 mbar |
| Set pressure | ≤ +32.1 inch W.C. | > +32.1 inch W.C. | ≤ +32.1 inch W.C. | > +32.1 inch W.C. |
| a | 218 / 8.58 | 218 / 8.58 | 218 / 8.58 | 218 / 8.58 |
| b | 288 / 11.34 | 453 / 17.83 | 290 / 11.42 | 455 / 17.91 |
Dimensions in mm / inches
Dimensions for pressure relief valve with heating jacket upon request
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| ≥ 0,85 mm | IIB1 | – |
Special approvals upon request
Material selection for housing
| Design | B | C |
| Housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. | Steel | Stainless Steel |
| Heating jacket (P / EB-E-H-...) | Steel | Stainless Steel |
| Valve seat Valve seat The valve seat is a component on which the valve pallet rests when the valve is closed. | Stainless Steel | Stainless Steel |
| Weather hood | Steel | Stainless Steel |
Special materials upon request
Material combinations of flame arrester unit
| Design | A |
| FLAMEFILTER® cage | Stainless Steel |
| FLAMEFILTER® | Stainless Steel |
| Spacer Spacer The spacer is a component that is generally used in a PROTEGO® flame arrester as a spacer within the FLAMEFILTER® se | Stainless Steel |
Special materials upon request
Material selection for valve pallet
| Design | A | B | C | D |
| Pressure range [mbar] [inch W.C.] | +3.5 up to +5.0 +1.4 up to +2.0 | >+5.0 up to +14 >+2.0 up to +5.6 | >+14 up to +210 >+5.6 up to +84 | >+14 up to +210 >+5.6 up to +84 |
| Valve pallet Valve pallet Valve pallet is the generic term for the assembly that rests on the valve seat. | Aluminium | Stainless Steel | Stainless Steel | Stainless Steel |
| Sealing | FEP | FEP | Metal to Metal | PTFE |
Special materials and higher pressure settings upon request
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other types upon request
Flow Capacity Chart
The flow capacity charts have been determined with a calibrated and TÜV certified flow capacity test rig. Volume flow V in (m³/h) and CFH refer to the standard reference conditions of air ISO 6358 (20°C, 1bar). For conversion to other densities and temperatures refer to Sec. 1: “Technical Fundamentals”.
Detail X
Detail X
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