V/SV-XXL

V/SV-XXL

Vacuum Relief Valve

Função e descrição

The V/SV-XXL type PROTEGO® valve is a highly developed optimized vacuum relief valve with excellent flow performance. It is primarily used as a safety device for relieving vacuum in tanks, containers and process engineering equipment. When the set vacuum is reached, the valve starts to open and reaches full lift within a 100% vacuum increase. Up to the set vacuum, the tank vacuum is maintained with a seal that is far superior to the conventional standard due to the highly developed manufacturing technology. This feature is achieved by valve seats made of high quality stainless steel with precisely lapped valve pallets and a reinforced housing design. After the vacuum is relieved, the valve reseats and again provides a tight seal. The optimized fluid dynamic design of the valve body and valve pallet is a result of intensive research and development activities, which allow a stable operation of the valve pallet and optimized performance resulting in reduction of product losses.

Características especiais e vantagens

  • excellent tightness and hence least possible product losses and reduced environmental pollution
  • very high optimized flow capacity
  • the valve pallet is guided within the housing to protect against harsh weather conditions
  • can be used in areas subject to explosion hazards
  • self draining
  • maintenance friendly design
  • best technology for API-tanks
  • designed for use on cryogenic tanks

Tabela de dimensões

DN 300 / 12"
a 946 / 37.24
b 649 / 25.55
DN 300 / 12"
a 946 / 37.24
b 649 / 25.55

Dimensões em mm Dimensions of pressure and vacuum relief valves with heating jacket upon request

V/SV-XXL

Seleção do material do corpo

Design ABC
Housing Aluminium Steel Stainless Steel
Heating jacket (V/SV-XXL-H-...) Steel Stainless Steel
Valve seat Stainless Steel Stainless Steel Stainless Steel
Sealing PTFE PTFE PTFE
CoverAluminiumSteel Stainless Steel
Design ABC
Housing Aluminium Steel Stainless Steel
Heating jacket (V/SV-XXL-H-...) Steel Stainless Steel
Valve seat Stainless Steel Stainless Steel Stainless Steel
Sealing PTFE PTFE PTFE
CoverAluminiumSteel Stainless Steel

Option: Housing ECTFE-coatedSpecial materials upon request

Seleção do material do disco da válvula de vácuo

Design AB
Pressure range [mbar]

[inch W.C.]
-2.0 up to -9.0

-0.8 up to -3.6
<-9.0 up to -16

<-3.6 up to -6.4
Valve pallet Aluminium Stainless Steel
Sealing Metal to Metal Metal to Metal
Design AB
Pressure range [mbar]

[inch W.C.]
-2.0 up to -9.0

-0.8 up to -3.6
<-9.0 up to -16

<-3.6 up to -6.4
Valve pallet Aluminium Stainless Steel
Sealing Metal to Metal Metal to Metal

Special material as well as higher vacuum upon request

V/SV-XXL

Tipo de conexão flangeada

EN 1092-1; Form B1
ASME B16.5; 150 lbs RFSF
EN 1092-1; Form B1
ASME B16.5; 150 lbs RFSF

other types upon request

Versão e especificação

The valve pallets are weight-loaded. Higher vacuum can be achieved upon request with a special spring-loaded design. There are two different designs:
Pressure/vacuum valve in basic design

V/SV-XXL - –

Pressure/vacuum relief valve with heating jacket

V/SV-XXL - H

Pressure/vacuum valve in basic design

V/SV-XXL - –

Pressure/vacuum relief valve with heating jacket

V/SV-XXL - H

Additional special devices available upon request.

Settings

Vacuum:

-2.0 mbar -16 mbar
-0.8 inch W.C.
Higher vacuum settings upon request.
V/SV-XXL

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.

V/SV-XXL
V/SV-XXL