DMY-III - Xiechang Pulse Valve
DMY-III 8-16 Inch Large Pulse Valve
Large 8-16 inch low-pressure pulse valve engineered for high-volume industrial baghouse cleaning.

Technical Parameters
Core operating specification.
Full Model Range
DMY-III model range
0.05-0.1 MPa / IP65 / Industrial configuration
| Type | Model No. | Size | DN Size | Air Volume |
|---|---|---|---|---|
| Large-Scale | DMY-III-200C | 8" | DN200 | 1.3-1.8 m3 |
| Large-Scale | DMY-III-250C | 10" | DN250 | 1.3-2.2 m3 |
| Large-Scale | DMY-III-300C | 12" | DN300 | 1.5-2.5 m3 |
| Large-Scale | DMY-III-350C | 14" | DN350 | 1.5-2.8 m3 |
| Large-Scale | DMY-III-400C | 16" | DN400 | 1.8-3.5 m3 |
Product Standards
Industrial pulse-valve specifications.
Product Videos
Related demonstrations and selection videos.
The Powerhouse of Dust Collection: Xiechang DMY-III Large Diameter Pulse Valves (8"-16")
8” - 16” Large size diaphragm pulse valve
Technical Drawings
Installation dimensions for this product.
🔒 Dimensions available on inquiryDMY-III-250C
DMY-III-250C · 10 inch · immersed/submerged low-pressure pulse valve — Installation Drawing
| Outer flange diameter | 🔒 |
|---|---|
| Bolt circle diameter | 🔒 |
| Bolt holes | 🔒 |
| Flange thickness | 20 mm |
| Mounting height | 40 mm |
| Spray tube diameter | Ø275 mm |
+2 more dimensions
🔒 Dimensions available on inquiryDMY-III-300C
DMY-III-300C · 12 inch · immersed/submerged low-pressure pulse valve — Installation Drawing
| Outer flange diameter | Ø730 mm |
|---|---|
| Bolt circle diameter | Ø680 mm |
| Bolt holes | 16-M16 |
| Flange thickness | 🔒 |
| Mounting height | 🔒 |
| Spray tube diameter | 🔒 |
+2 more dimensions
🔒 Dimensions available on inquiryDMY-III-350C
DMY-III-350C · 14 inch · immersed/submerged low-pressure pulse valve — Installation Drawing
| Outer flange diameter | Ø842 mm |
|---|---|
| Bolt circle diameter | Ø780 mm |
| Bolt holes | 🔒 |
| Flange thickness | 20 mm |
| Mounting height | 🔒 |
| Spray tube diameter | 🔒 |
+3 more dimensions
🔒 Dimensions available on inquiryDMY-III-400C
DMY-III-400C · 16 inch · immersed/submerged low-pressure pulse valve — Installation Drawing
| Outer flange diameter | 🔒 |
|---|---|
| Bolt circle diameter | 🔒 |
| Outlet diameter | Ø806 mm |
| Spray tube diameter | 🔒 |
| Spray tube wall | 10 mm |
| Mounting height | 50 mm |
+2 more dimensions
🔒 Dimensions available on inquiryDMY-III-200C
DMY-III-200C · 8 inch · immersed/submerged low-pressure pulse valve — Installation Drawing
| Outer flange diameter | 🔒 |
|---|---|
| Bolt circle diameter | 🔒 |
| Bolt holes | 12-M10 |
| Flange thickness | 🔒 |
| Mounting height | 35 mm |
| Spray tube diameter | Ø220 mm |
+2 more dimensions
Knowledge Base
Practical answers for this product.
How do you troubleshoot common faults on an ultra-low-pressure large-diameter pulse valve?
Work conditions are DC24V/1.2A/30W or AC220V/0.5A/30W, 0.05–0.1 MPa. If the valve will not open, check voltage match and pulse width (150–200 ms) and the coil; if it clicks but will not blow, raise tank pressure to 0.05–0.1 MPa and check the damping passage; leaks usually mean a damaged pilot, diaphragm or seat that must be replaced.
How do you install an ultra-low-pressure large-diameter (8"–16") pulse valve?
Place the large diaphragm on the tank (aluminium face up) aligning the bolt holes, seat the spring in its retainer, fit the valve cover embedding the spring and tighten the bolts diagonally. For 12"–16" valves also fit the adapter and pilot valve with PTFE tape (note pilot flow direction), then pressure-hold test at 0.1 MPa.
What are the advantages of the Xiechang DMY-III ultra-low-pressure large-diameter pulse valve?
The DMY-III (8"–16") uses a three-stage diaphragm for high sensitivity, has its first-stage seat cast integral with the air tank for low internal resistance, and fits GARLOCK first- and second-stage diaphragms rated for 1,000,000 cycles. It cleans many bags at low pressure with high air volume and suits energy-saving Roots-blower supply.