Intrinsic safety valves can be used for applications that require similar explosion class/ignition degree to d2G4 or Exd II BT5 type (explosion-proof enclosure construction). Without need for expensive connection tools and complex installation work that are inevitable for explosion-proof enclosure types, the intrinsic safety valves achieve highly reliable explosion-proof performance.

Return     Hold    Kind of barrier to combine   ｉ２Ｇ４     MTL728+

454S202C-Ｙｉ 454S203C-Ｙｉ 454S403C-Ｙｉ  454S404C-Ｙｉ  454D202C-Ｙｉ

454D203C-Ｙｉ 454D403C-Ｙｉ 454D404C-Ｙｉ

EｘｉａⅡBT5   SAF3-5

454S202M-Ｙｉ 454S203M-Ｙｉ 454S403M-Ｙｉ 454S404M-Ｙｉ 454D202M-Ｙｉ

454D203M-Ｙｉ 454D403M-Ｙｉ 454D404M-Ｙｉ

In the case of other explosion-proof barriers and combination *1

Structure of the main valve   Pilot spool type

Port size

Rc1/4 Rc3/8 Rc1/2 Rc1/4 Rc3/8 Rc1/2

Effective area of valve 22mm2  40mm  22mm  40mm2

Working pressure  0.2～0.7MPa

Ambient temp.  -5～50℃

Explosion-proof standard Intrinsic safety construction

Operating condition

• Use with specified safety barrier

• For i2G4 explosion-proof valves, use them with MTL728+ safety barrier.　

•    For Exia II BT5 explosion-proof valves, use them with the safety barrier SAF3-5 or that meets the

•    conditions described below (note *1).

• 2. Parts and connections cannot be changed.

• 3. Use 1 explosion-proof barrier for each solenoid valve.