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KST&OEM&ODM Brand
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Features
▶ Three types of seat structures available:
DBB (Double Block and Bleed): Double-seated with automatic pressure relief, suitable for high-demand sealing and safety conditions.
DIB-1 (Double Isolation and Bleed): Dual-seal upstream and downstream, suitable for critical isolation and gas-liquid media with strict sealing requirements.
DIB-2 (Upstream and downstream double seal): Pressure relief from upstream or downstream side, suitable for both liquid and gas applications.
▶Blow-out proof stem and anti-static device for enhanced safety. Fire-safe structure design available.
▶Metal-to-metal or soft sealing available. Seats can be self-relieving and feature emergency sealing devices.
▶ISO 5211 mounting pad for direct connection to pneumatic, electric, or electro-hydraulic actuators.
Technical Parameters
| Item | Specification |
| Size Range | 2"–40", DN50–DN900 |
| Pressure Range | CL150–CL2500, PN16–PN420 |
| Model | Q47Y |
| Material Options | Carbon steel, heat-resistant steel, stainless steel, nickel-based alloy, titanium alloy, optional overlay or cast body |
| Temperature Range | Normal: 29–200°C, Medium: 29–315°C, High: 29–600°C |
| Drive Type | Manual, pneumatic, electric, hydraulic, electro-hydraulic, etc. |
Application industry
Applied in industries such as petroleum, petrochemical, coal chemical, photovoltaic (polysilicon, monocrystalline silicon), metallurgy, and fine chemical industries.
Features
▶ Three types of seat structures available:
DBB (Double Block and Bleed): Double-seated with automatic pressure relief, suitable for high-demand sealing and safety conditions.
DIB-1 (Double Isolation and Bleed): Dual-seal upstream and downstream, suitable for critical isolation and gas-liquid media with strict sealing requirements.
DIB-2 (Upstream and downstream double seal): Pressure relief from upstream or downstream side, suitable for both liquid and gas applications.
▶Blow-out proof stem and anti-static device for enhanced safety. Fire-safe structure design available.
▶Metal-to-metal or soft sealing available. Seats can be self-relieving and feature emergency sealing devices.
▶ISO 5211 mounting pad for direct connection to pneumatic, electric, or electro-hydraulic actuators.
Technical Parameters
| Item | Specification |
| Size Range | 2"–40", DN50–DN900 |
| Pressure Range | CL150–CL2500, PN16–PN420 |
| Model | Q47Y |
| Material Options | Carbon steel, heat-resistant steel, stainless steel, nickel-based alloy, titanium alloy, optional overlay or cast body |
| Temperature Range | Normal: 29–200°C, Medium: 29–315°C, High: 29–600°C |
| Drive Type | Manual, pneumatic, electric, hydraulic, electro-hydraulic, etc. |
Application industry
Applied in industries such as petroleum, petrochemical, coal chemical, photovoltaic (polysilicon, monocrystalline silicon), metallurgy, and fine chemical industries.
