HYG Series Gas Filter – American Standard Flange for Imported Flowmeter Compatibility
The HYG series gas filter is designed for gas transmission and distribution systems. It is installed at the inlet of gas equipment including pressure regulators, valves, flowmeters, and pressure gauges to remove solid particles and contaminants. The HYG series features American standard flanges, making it directly compatible with imported gas roots flowmeters.
Key Features
Flange standard: American standard (ANSI) flanges for direct connection to imported gas meters
Filter element: Stainless steel mesh, large filtration area
Flow resistance: Low fluid flow resistance
Durability: Stainless steel element is corrosion-resistant, washable and reusable
Optional accessory: Differential pressure gauge for filter clogging indication
Maintenance: Simple installation, easy cleaning and operation
Technical Specifications
| Parameter | Value |
|---|---|
| Model series | HYG |
| Applicable media | Natural gas, LPG, city gas, etc. |
| Filter element | G series stainless steel mesh |
| Filtration accuracy | 50μm (standard, customizable) |
| Nominal diameter | DN20 to DN300 |
| Working pressure | Up to 1.6MPa (customizable) |
Dimensions (HYG Series) – see Table 1 in original document
| DN | D (mm) | h (mm) | h1 (mm) | L (mm) | K (mm) | n-d |
|---|---|---|---|---|---|---|
| 20 | 105 | 142 | 195 | 270 | 75 | 4×Φ14 |
| 25 | 115 | 142 | 195 | 270 | 85 | 4×Φ14 |
| 32 | 140 | 142 | 195 | 270 | 100 | 4×Φ18 |
| 40 | 150 | 142 | 195 | 270 | 110 | 4×Φ18 |
| 50 | 165 | 142 | 195 | 270 | 125 | 4×Φ18 |
| 80 | 200 | 168 | 235 | 325 | 160 | 8×Φ18 |
| 100 | 220 | 210 | 285 | 395 | 180 | 8×Φ18 |
| 150 | 285 | 252 | 345 | 500 | 240 | 8×Φ22 |
| 200 | 340 | 300 | 415 | 580 | 295 | 12×Φ22 |
| 250 | 405 | 291 | 427 | 605 | 355 | 12×Φ26 |
| 300 | 460 | 338 | 498 | 695 | 410 | 12×Φ26 |
Ordering Code
| Code Position | Description | Options |
|---|---|---|
| HYG | Series | HYG series gas filter |
| DN | Nominal diameter | 20, 25, 32, 40, 50, 80, 100, 150, 200, 250, 300 |
| μm | Mesh / filtration accuracy | 50 (standard) |
| PN | Working pressure / nominal pressure | 1.6 (standard) |
| Suffix | Type | (blank): standard / C: with differential pressure gauge |
Ordering Example
HYG-50-50-1.6 = DN50 gas filter, 50μm filtration accuracy, 1.6MPa nominal pressure, standard type
Applications
Gas transmission and distribution systems
Inlet protection for gas roots flowmeters (especially imported models)
Upstream of pressure regulators and valves
Natural gas, LPG and city gas pipelines
