DMY-F-II-80 Explosion-Proof Encapsulated Submerged Pulse Valve Details
Description Overview:
The Xiechang® DMY-F-II-80 is a heavy-duty submerged pulse valve for hazardous environments. Featuring an internal manifold mounting, it ensures minimal pressure loss and superior cleaning impact. Its encapsulated explosion-proof pilot guarantees safe operation in flammable gas or dust atmospheres.
The Xiechang® DMY-F-II-80 is a heavy-duty submerged pulse valve for hazardous environments. Featuring an internal manifold mounting, it ensures minimal pressure loss and superior cleaning impact. Its encapsulated explosion-proof pilot guarantees safe operation in flammable gas or dust atmospheres.
Technical Conditions & Specifications
| Category | Technical Index / Working Conditions |
|---|---|
| 1. Altitude & Humidity | Altitude ≤ 1000m; Relative humidity ≤ 95%; -25℃ ~ 85℃. |
| 2. Explosion-Proof Zones | Group II, T1~T4 (Zones 1 & 2) and combustible dust (Zone 20). |
| 3. Atmosphere & Media | Free of vapors damaging insulation; requires clean compressed air. |
| 4. Mechanical Stability | Sites must be free of significant shaking, impact, or vibration. |
| 5. Protection & Size | Drip-proof design; Submerged structure; DN80 (3″) diameter. |
Model & Size Specifications
| Model | Nominal Dia (DN) | Interface (Inch) | Ex-Type | Ex-Mark |
|---|---|---|---|---|
| DMY-F-II-80 | DN80 | 3″ | Encapsulated | Ex mb IIC T6 Gb |
Technical Guide
▶1. What is an Explosion-Proof Encapsulated Submerged Pulse Valve?
This is a high-performance **baghouse pulse valve** that combines a submerged body structure with a hermetically sealed (encapsulated) solenoid pilot. It is engineered to operate safely within the air manifold while preventing any electrical sparks from igniting explosive gases or dust in the surrounding environment.
▶2. How does an Explosion-Proof Encapsulated Submerged Pulse Valve work?
The valve uses a diaphragm to separate the front and rear air chambers. When the explosion-proof pilot receives a signal, it releases pressure from the rear chamber. The high-pressure air within the manifold then forces the diaphragm open instantly, delivering a powerful pulse of air for filter bag cleaning.
▶3. What are the advantages of an Explosion-Proof Encapsulated Submerged Pulse Valve?
Its main advantages include exceptional safety in hazardous zones and high pneumatic efficiency. As a submerged **baghouse pulse valve**, it offers minimal airflow resistance and a stronger peak pressure impact compared to externally mounted valves, leading to better cleaning results and lower air consumption.
▶4. What are the disadvantages of an Explosion-Proof Encapsulated Submerged Pulse Valve?
Due to its submerged installation inside the air manifold, routine maintenance or diaphragm replacement requires the entire manifold to be depressurized. This can result in slightly longer downtime during service compared to surface-mounted valve types.
▶5. What are the application scenarios for an Explosion-Proof Encapsulated Submerged Pulse Valve?
It is ideally suited for dust collection systems in high-risk industries such as chemical processing, coal mining, metal powder manufacturing, grain storage silos, and any facility where combustible dust or flammable vapors are present.
