EF/V-IIB3

EF/V-IIB3

Detonation Flame Arrester Detonation-proof foot valve for suction lines

Функция и описание

The PROTEGO® EF/V-IIB3 detonation-safe foot valve protects the suction line in a storage tank. The nearly service-free device is installed at the end of the emptying line within the tank. When a pump draws, the valve opens at an approximate underpressure of 30 mbar / 12 inch W.C. . When the pump is turned off, the device functions as a check valve and prevents the line from emptying. This is very helpful when the pump is restarted.

Combustible mixtures can arise in filling and drain lines of storage containers that are not always filled with product. With the ignition of the explosive atmosphere, highly accelerated pipe deflagration or detonations can arise. The detonation-proof foot valve prevents the combustion from being transmitted into the tank and destroying it. The design of the foot valve ensures that the strainer is always filled with residual product. Together with the special valve design, this combination prevents flame flash back from the inside out.

The application limits for the device are a product vapour/air mixture temperature up to +60°C / 140°F and an absolute pressure up to 1.1 bar / 15.9 psi. This covers all of the possible operating conditions of empty lines for flammable liquids.

The device protects against nearly all flammable liquids, and is permitted for explosion group IIB3 (C MESG ≥ 0.65 mm).

Type-approved in accordance with the current ATEX Directive and EN ISO 16852 as well as other international standards.

Особые признаки и преимущества

  • almost service-free
  • the check valve makes it easier to start the pump
  • provides protection from deflagrations and stable detonations
  • applicable to nearly all flammable liquids
  • meets TRbF * 20 requirements
  • the special strainer prevents solid particles from entering
*TRbF = technical regulations for flammable liquids

Таблица параметров

To select the nominal size (DN), please use the flow capacity chart on the following pages

DN25 / 1"32 / 1¼“40 / 1½“50 / 2"65 / 2½“80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"
a125 / 4.92125 / 4.92135 / 5.31135 / 5.31160 / 6.29160 / 6.29200 / 7.87235 / 9.25260 / 10.24400 / 15.75450 / 17.72
b85 / 3.3585 / 3.3585 / 3.3585 / 3.3595 / 3.7495 / 3.74125 / 4.92130 / 5.12135 / 5.31175 / 6.89200 / 7.87
c155 / 6.10155 / 6.10180 / 7.09180 / 7.09210 / 8.27210 / 8.27250 / 9.84310 / 12.20365 / 14.37480 / 18.90565 / 22.24
DN25 / 1"32 / 1¼“40 / 1½“50 / 2"65 / 2½“80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"
a125 / 4.92125 / 4.92135 / 5.31135 / 5.31160 / 6.29160 / 6.29200 / 7.87235 / 9.25260 / 10.24400 / 15.75450 / 17.72
b85 / 3.3585 / 3.3585 / 3.3585 / 3.3595 / 3.7495 / 3.74125 / 4.92130 / 5.12135 / 5.31175 / 6.89200 / 7.87
c155 / 6.10155 / 6.10180 / 7.09180 / 7.09210 / 8.27210 / 8.27250 / 9.84310 / 12.20365 / 14.37480 / 18.90565 / 22.24

размер в мм

EF/V-IIB3

Выбор материала корпуса

Design  ABCD
Housing Steel Stainless Steel Steel Stainless Steel
Valve Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Gasket (Valve)PTFEPTFE PTFEPTFE
Gasket (Housing)FPMFPM PTFEPTFE
StrainerStainless SteelStainless SteelStainless SteelStainless Steel
Design  ABCD
Housing Steel Stainless Steel Steel Stainless Steel
Valve Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Gasket (Valve)PTFEPTFE PTFEPTFE
Gasket (Housing)FPMFPM PTFEPTFE
StrainerStainless SteelStainless SteelStainless SteelStainless Steel

Special materials upon request

EF/V-IIB3

Выбор группы взрывоопасности

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C
MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C

Special approvals upon request

Спецификация макс. рабочей температуры

≤ 60°C / 140°FTmaximum allowable operating temperature in °C
-Designation
≤ 60°C / 140°FTmaximum allowable operating temperature in °C
-Designation

higher operating temperatures upon request

Вид фланцевого соединения

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

other connections upon request

EF/V-IIB3

Диаграммы пропускной способности

Диаграммы пропускной способности были определены с помощью калибрированной и сертифицированной объединением технического надзора (TÜV) проточной измерительной установки. Пропускная способность V. в м³/час определена воздухом при нормальных атмосферных условиях в соответствии с ISO 6358 (20°C, 1 бар). Преобразование для различных плотностей и температур см. главу 1: Технические основы

EF/V-IIB3
EF/V-IIB3