SD/BS-H
Válvula de alívio de pressãona versão especial aquecível

Features
10% Technology
for minimum pressure increase up to full
lift
Lift
Lift is the actual travel of the valve pallet from the main valve out of the closed position.
Heating Jackets
complete heating jacket up to the flange to avoid ice build-up
Heating Medium Temperature
maximum allowable heating medium temperature of 320°C / 608°F (at 6 bar / 87 psi)
Heatable Valve Cover Available
available in a special design with a heatable valve cover
Sturdy Housing Design
(PN 10 and PN 16)
Used in Explosion Hazardous Areas
Extreme Tightness
resulting in lowest possible
product
Product
Includes equipment, protective systems, devices, components and combinations of these.
losses and reduced environmental pollution
Optimal Pressure Maintenance
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.
close to opening pressure for optimum pressure
maintenance
Maintenance
Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order.
in the system
Flow Capacity
optimized flow capacity
Guided Valve Pallet
valve pallet
Valve pallet
Valve pallet is the generic term for the assembly that rests on the valve seat.
is guided inside the
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.
to protect against harsh weather conditions
Function and Description

Highly Developed Pressure Relief Valve
The SD/BS-H 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.
with a heating jacket down to the flange. It is primarily used as pressure relief
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 vessels and process engineering
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.
under difficult operating conditions. This includes extreme weather conditions or products that tend to form polymers at certain temperatures, stick together, or form deposits that negatively influence function (such as bitumen, tar, dust). 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 excessive loss of product vapors close to the set pressure.

Full Lift Technology
The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to full lift. Continuous investments in and a commitment to research and development have allowed PROTEGO® to develop a low pressure valve which has the same opening characteristic as a high pressure safety relief valve. With this “full lift type” technology, the valve can be set at just 10% below the maximum allowable working pressure of the tank and still safely vent the required mass flow.

Advanced Manufacturing Technology
Due to our highly developed manufacturing technology, the
tank pressure
Tank pressure
Tank pressure is the pressure within a tank.
is maintained up to set pressure with a tightness that is far superior to the conventional standard. This feature is achieved by valve seats made of high-grade stainless steel with precisely lapped valve pallets and a sturdy housing design.After the excess pressure is released, the valve re-seats and provides a tight
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.
again.
Product Data and Features
Tabela de dimensões
Para escolher o diâmetro nominal (DN), veja o diagrama de vazão da página seguinte
| DN1 | DN2 | a | b | b | c | d | d | e |
| bis 30 mbar | > 30 mbar | bis 30 mbar | > 30 mbar | |||||
| 80 / 3"* | 15 / ½" | 325 | 400 | 515 | 70 | 250 | 390 | 250 |
| 100 / 4" | 15 / ½" | 325 | 400 | 505 | 60 | 250 | 380 | 250 |
| 150 / 6" | 15 / ½" | 405 | 460 | 595 | 60 | 315 | 470 | 290 |
| 200 / 8" | 15 / ½" | 510 | 470 | 575 | 65 | 305 | 445 | 340 |
Dimensões em mm
* também pode ser fornecido com fl ange especial DN 50 / 2"
Seleção do material do corpo
| Execução | A | B |
| Corpo | Aço | Aço inoxidável |
| Camisa de aquecimento | Aço | Aço inoxidável |
| Sedes de válvulas | Aço inoxidável | Aço inoxidável |
Materiais especiais sob solicitação
Seleção do material do disco da válvula de pressão
| Execução | A | B | C |
| Faixa de pressão [mbar] | +5,0 até +25 | >+10 até +30 | >+30 até +210 |
| Obturador da válvula | Alumínio | Aço inoxidável | Aço inoxidável |
| Tampa do obturador da válvula | Aço inoxidável | Aço inoxidável | - |
| Vedação | metálica | metálica | metálica |
Materiais especiais, bem como ajustes de pressão mais altos sob solicitação
Tipo de conexão flangeada
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
Outras conexões sob solicitação
Versão e especificação
O obturador da válvula é calibrado por peso. A partir de uma pressão de ajuste de 30 mbar se usa adicionalmente uma guia com palheta.Válvula de alívio de pressão na versão básica com camisa de aquecimentoSD/BS - H
Outros dispositivos especiais sob solicitação
Ajustes de pressão
| Pressão: | +5.0 mbar | +210 mbar |
| +2.0 inch W.C. | +84 inch W.C. |
Ajustes de pressões mais altas sob solicitação.
Diagrama de vazão

Este diagrama de vazão foi determinado em uma bancada de medição de vazão calibrada e certificada pela TÜV. A vazão V em m³/h se refere ao estado técnico padrão de ar, conforme ISO 6358 (20°C, 1bar). Para conversão em outras densidades e temperaturas, veja o cap. 1: Bases técnicas.

Applications







