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Excellence in Safety and Environment

VD/KSM-PA

Válvula de alívio de pressão e vácuoem plástico

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.
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
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
Non-Corrosive
Weight Reduction
in comparison to steel/stainless steel
Condensate Drainage
automatic condensate drain
Aggressive, Sticky, or Polymerizing Products
especially suitable for aggressive, sticky, or polymerizing substances
Different Plastics
can easily be combined
Function and Description

Combined Pressure and Vacuum Relief Valve

The PROTEGO® valve VD/KSM-PA is a state-of-the-art pressure and vacuum relief valve Pressure and vacuum relief valve A pressure and vacuum relief valve is a pressure equalization valve for impermissible pressure and vacuum in a closed system. with excellent flow performance made of high-grade synthetic material. Typically, the valve is installed in the in-breathing and out-breathing lines of tanks, vessels, 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. to protect against unallowable overpressure Overpressure Overpressure refers to an increase in pressure in a system or vessel above the normal operating pressure. and under pressure. The valve prevents emission losses almost up to the set pressure. The valve is a perfect solution for corrosive, polymerizing, or sticky substances.

Full Lift Technology

The 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. 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. This “full lift type” technology allows the valve to be set at just 10% below the maximum allowable working pressure and vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. (MAWP and MAWV) of the tank and still safely vent the required mass flow. The opening characteristic for the pressure and vacuum sides is the same.

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 the set pressure with a tightness that is far superior to the conventional standard. This feature is achieved by special valve seats made of high quality synthetic material or PTFE. After the excess pressure is released or the vacuum is balances, 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. . The optimized fluid dynamic design of the valve body and valve pallet is a result of many years of research, resulting in stable operation of the valve pallet, optimized performance, and reduced product losses.
Product Data and Features

Tabela de dimensões

Para escolher o diâmetro nominal (DN), veja os diagramas de vazão nas páginas seguintes

DN150 / 2"80 / 3" 100 / 4" 150 / 6" 200 / 8"
DN250 / 2"80 / 3"100 / 4"150 / 6"200 / 8"
a490650775 (750)*930 (958)*1260 (1200)*
b376521563 (523)*670 (651)*879 (912)*
c150200225280350
d200245300370590 (650)*
e180250300350 (405)*560 (500)*

Dimensões em mm

* Dimensões entre parênteses para aparelhos em PVDF

Seleção do material do corpo

Execução A B C
CorpoPEPPPVDF
Sedes de válvulasPEPPPVDF
VedaçãoFPMFPMFPM
Obturador da válvula de alívio de pressãoA, C, DB, C, DC, D
Obturador da válvula de vácuoA, C, DB, C, DC, D

Materiais especiais sob solicitação

Seleção do material do disco da válvula de pressão

Execução A B C D
Faixa de pressão [mbar]
+6,0 até +16+5,5 até +16+9,5 até +30+30 até +100
Obturador da válvulaPEPPPVDFHastelloy
VedaçãoPTFEPTFEPTFEPTFE
Guia da hastePEPPPVDFHastelloy
PesoPEPPPVDFHastelloy

Materiais especiais e ajustes de pressão mais altos ou baixos sob solicitação

Seleção do material do disco da válvula de vácuo

Execução A B C D
Faixa de pressão [mbar]
-6,0 até -16-5,5 até -16-9,5 até -30-30 até -100
Obturador da válvulaPEPPPVDFHastelloy
VedaçãoPTFEPTFEPTFEPTFE
Guia da hastePEPPPVDFHastelloy
PesoPEPPPVDFHastelloy

Materiais especiais e ajustes de vácuo mais altos ou baixos sob solicitação

Tipo de conexão flangeada

EN 1092-1; Form B1
ASME B16.5 CL 150 F.F.

Outras conexões sob solicitação

Versão e especificação

Os obturadores de válvula são calibrados por peso, porém o nível de pressão máximo é alcançado somente com obturadores de metal.
Válvula de alívio de pressão e vácuo na versão básicaVD/KSM-PA

Outros dispositivos especiais sob solicitação

Ajustes de pressão

Pressão:+6.0 mbar+100 mbar
+2.4 inch W.C.+40 inch W.C.
+4.0 mbar+100 mbar
+1.6 inch W.C.+40 inch W.C.
+4.5 mbar+100 mbar
+1.8 inch W.C.+40 inch W.C.
Vácuo:-6.0 mbar-100 mbar
-2.4 inch W.C.-40 inch W.C.
-4.0 mbar-100 mbar
-1.6 inch W.C.-40 inch W.C.
-4.5 mbar-100 mbar
-1.8 inch W.C.-40 inch W.C.

Ajustes de pressão mais altos ou baixos 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