In petrochemical, gas transmission, and pharmaceutical plants, explosion-proof electric gate valves are essential for safe shut-off. CT6 (Exd IIC T6) is the highest protection level – suitable for hydrogen, acetylene, carbon disulfide (IIC gas group), with max surface temperature ≤85°C.The main gate valves product names of China gate Valve Network include:API Pneumatic Lug&wafer Knife-shaped Gate Valve,API Cryogenic Gate Valve,API Flange Gate Valve,Bevel Gear Slurry ValveElectric Rising Stem Double Disc Parallel Gate Valve,Electric Non-rising Stem Single Disc Wedge Gate Valve,Electric Rising Stem Single Disc Wedge Gate Valve,Electric Wafer Knife-shaped Gate Valve,Electro-hydraulic Wafer Knife-shaped Gate Valve,Electric Slurry ValveElectric Flange Gate Valve,Fire Special Signal Relisient Seat Seal Gate Valve,Fire Special Rising Stem Resilient Seat Seal Gate Valve,Forged Steel Socket Welding Valve,Forged Steel Flange Gate Valve

2026 Price (RMB, incl. tax)

Body Material Pressure Explosion Proof Price (RMB)

Cast steel WCB PN16       Exd IIC T6 4,800–6,500

Cast steel WCB PN25    Exd IIC T6 5,600–7,500

SS304         PN16  Exd IIC T6 6,200–8,500

SS316L         PN16        Exd  IIC T67,200–9,800

CT6 costs 30–50% more than BT4. The actuator accounts for >60% of total cost. Bulk orders (3+ pcs) save 10–15%.

Key Selection

Size: DN100 (4″)

Ex mark: Exd IIC T6 Gb (flameproof, Zone 1 & 2)

Enclosure: IP67

Power: AC220V, AC380V, or DC24V

Control: On/off (with position feedback) or modulating (4-20mA)

Body: Cast steel for oil/gas/steam; stainless steel for corrosive media

Seat: Metal hardfaced (≤425°C) or soft (PTFE, ≤200°C)

Installation Tips

Use explosion-proof cable glands – ensure intact seal.

Reliably ground the actuator to prevent static accumulation.

Before first use, manually cycle fully open/close to verify limit switches.

Avoid direct sunlight or high ambient temperature – affects Ex performance.

Bottom Line

A DN100 Exd IIC T6 electric gate valve costs RMB 4,800–9,800 in 2026. Match media temperature, body material, and power supply. Always choose a complete valve with a valid explosion-proof certificate.

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