Product Overview
The HN66 Y-Strainer is an EN/DIN industrial pipeline strainer designed to mechanically remove solid particles from flowing media before they reach pumps, meters, control valves, steam traps, regulators and other downstream equipment.
This strainer is suitable for steam, water, oil, gas and compatible industrial media where foreign matter may be present in the pipeline. The replaceable screen element allows maintenance teams to remove trapped particles and restore flow protection during planned service.
HN66 is available from DN15 to DN400 with PN16, PN25 and PN40 pressure ratings. Connection options include EN 1092-1 flanged ends and project-dependent butt-welded ends, with body material options including carbon steel, alloy steel and stainless steel according to service conditions.
Key Features
- Y-pattern body design: For pipeline filtration and equipment protection.
- Replaceable SS304 or SS316 screen element: For project-specific media compatibility.
- Suitable for steam, water, oil, gas and selected industrial process fluids.
- Flanged and butt-welded connection options according to project requirements.
- Self-acting filtration by line pressure, without manual operation.
- Drain screw arrangement for maintenance and cleaning procedures.
- Available in carbon steel, alloy steel and stainless steel body material options.
Sectional Structure and Materials
The numbered sectional drawing corresponds to the position numbers in the materials table. Final material selection should be confirmed according to pressure rating, temperature and fluid compatibility.
| Pos. | Name | Typical Material Options |
|---|---|---|
| 1 | Bolt | ASTM A193 B7, A193 B16, A193 B8M or project-specified equivalent |
| 2 | Sealing gasket | Copper alloy or project-specified equivalent |
| 3 | Drain screw | A105, F316 or project-specified equivalent |
| 4 | Bonnet | 1.0619 / A216 WCB; 1.7357 / A217 WC6; 1.4408 / A351 CF8M |
| 5 | Gasket | Graphite + SS304 or SS316 |
| 6 | Screen | SS304 or SS316 |
| 7 | Body | 1.0619 / A216 WCB; 1.7357 / A217 WC6; 1.4408 / A351 CF8M |
Typical materials are listed for preliminary selection. Other material combinations may be discussed according to actual service conditions.
Technical Specifications
| Product Type | Y-Strainer |
|---|---|
| Model | HN66 |
| Nominal Size | DN15-DN400 |
| Pressure Rating | PN16, PN25, PN40 |
| Connection Types | EN 1092-1 flanged ends; butt-welded ends by project request |
| Face-to-Face | EN 558-1 |
| Butt-Welded Ends | EN 12627 |
| Body Materials | Carbon steel, alloy steel, stainless steel options |
| Screen Materials | SS304, SS316 |
| Operation | Self-acting by line pressure |
| Temperature Range | Material and pressure rating dependent |
Dimensions and Performance Data
The drawings show the corresponding dimensional symbols used in the table below. Values are for preliminary selection and should be confirmed against approved drawings before order.
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L, mm | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | 980 | 1100 |
| H, mm | 72 | 88 | 105 | 110 | 130 | 140 | 170 | 190 | 240 | 290 | 340 | 425 | 515 | 615 | 725 | 835 |
| Weight FL PN16, kg | 2.5 | 3.4 | 4.6 | 5.5 | 5.6 | 9.2 | 13.5 | 17.3 | 27 | 39 | 58 | 113 | 225 | 270 | 380 | 620 |
| Weight FL PN25, kg | 2.5 | 3.4 | 4.6 | 5.5 | 5.6 | 9.4 | 15 | 20.2 | 32 | 47.5 | 70 | 121.5 | 230 | 290 | 430 | 680 |
| Weight FL PN40, kg | 2.5 | 3.4 | 4.6 | 5.5 | 5.6 | 9.4 | 15 | 20.2 | 32 | 47.5 | 70 | 127.4 | 240 | 310 | 470 | 700 |
| Weight BW PN16, kg | 1.0 | 1.6 | 2.6 | 3.0 | 3.8 | 4.2 | 8.2 | 15 | 22 | 33 | 50 | 80 | 160 | 200 | 340 | 510 |
| Weight BW PN25, kg | 1.0 | 1.6 | 2.6 | 3.0 | 3.8 | 4.2 | 8.2 | 15 | 22 | 33 | 50 | 80 | 160 | 200 | 340 | 510 |
| Weight BW PN40, kg | 1.0 | 1.6 | 2.6 | 3.0 | 3.8 | 4.2 | 8.2 | 15 | 22 | 33 | 50 | 80 | 160 | 200 | 340 | 510 |
| Kv, mesh 40 | 6.3 | 11 | 17.5 | 28 | 44 | 69 | 118 | 178 | 270 | 420 | 620 | 1100 | 1700 | 2500 | 3400 | 4400 |
Screen Medium Options
Screen medium selection depends on fluid type, particle size, pressure drop tolerance and maintenance requirements. The following values are catalog reference data for preliminary selection.
Standard Screen Medium for Liquid
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kvs values | 6.3 | 11 | 17.5 | 28 | 44 | 69 | 118 | 178 | 270 | 420 | 620 | 1150 | 1700 | 2500 | 3400 | 4400 |
| Woven wire size | 0.6 mm | 0.6 mm | 0.6 mm | 0.6 mm | 0.6 mm | 0.6 mm | 1.2 mm | 1.2 mm | 1.2 mm | 1.2 mm | 1.2 mm | 1.2 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm |
| Wire thickness | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.8 mm | 0.8 mm | 0.8 mm | 0.8 mm | 0.8 mm | 0.8 mm | 1.00 mm | 1.00 mm | 1.00 mm | 1.00 mm |
Standard Screen Medium for Gas
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kvs values | 5.2 | 9.1 | 16.5 | 26 | 42 | 62 | 100 | 158 | 230 | 370 | 550 | 1000 | 1600 | 2400 | 3200 | 4200 |
| Dense woven wire size | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh | 60-100 Mesh |
| Wire thickness | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm | 0.20 mm |
Pressure-Temperature Reference
The maximum allowable working pressure varies with operating temperature and material grade. The following table is catalog reference data based on EN 12516-1.
| Material | PN | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 425 | 450 | 500 | 525 | 550 | 575 | 595 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.0619 / A216 WCB | 16 | 1.36 | 1.27 | 1.14 | 1.04 | 0.94 | 0.88 | 0.84 | – | – | – | – | – | – | – |
| 1.0619 / A216 WCB | 25 | 2.13 | 1.98 | 1.78 | 1.62 | 1.47 | 1.37 | 1.32 | – | – | – | – | – | – | – |
| 1.0619 / A216 WCB | 40 | 3.41 | 3.17 | 2.84 | 2.60 | 2.35 | 2.19 | 2.11 | – | – | – | – | – | – | – |
| 1.4408 / A351 CF8M | 16 | 1.33 | 1.20 | 1.10 | 1.02 | 0.96 | 0.91 | 0.87 | 0.86 | 0.86 | 0.83 | – | – | – | – |
| 1.4408 / A351 CF8M | 25 | 2.07 | 1.87 | 1.72 | 1.60 | 1.50 | 1.42 | 1.36 | 1.35 | 1.34 | 1.30 | – | – | – | – |
| 1.4408 / A351 CF8M | 40 | 3.32 | 2.99 | 2.75 | 2.56 | 2.41 | 2.27 | 2.18 | 2.16 | 2.14 | 2.08 | – | – | – | – |
| 1.7357 / A217 WC6 | 16 | 1.63 | 1.58 | 1.49 | 1.43 | 1.33 | 1.23 | 1.15 | 1.11 | 1.07 | 0.89 | 0.68 | 0.35 | 0.28 | 0.20 |
| 1.7357 / A217 WC6 | 25 | 2.54 | 2.48 | 2.33 | 2.23 | 2.08 | 1.93 | 1.80 | 1.73 | 1.67 | 1.39 | 1.06 | 0.55 | 0.43 | 0.32 |
| 1.7357 / A217 WC6 | 40 | 4.07 | 3.96 | 3.74 | 3.57 | 3.33 | 3.09 | 2.89 | 2.77 | 2.67 | 2.23 | 1.70 | 0.88 | 0.69 | 0.52 |
Temperature values not listed in the table should be selected by linear interpolation method or confirmed during project review.
Applications
- Steam pipelines where strainers protect traps, regulators and control valves.
- Water treatment and process water systems requiring coarse particle filtration.
- Oil and compatible hydrocarbon pipelines requiring upstream equipment protection.
- Gas pipelines where dense woven wire screen medium may be selected.
- Power engineering auxiliary systems and plant utility lines.
- Chemical and petrochemical plants where foreign matter must be removed before sensitive equipment.
Testing, Installation and Operation
Testing
- Pressure tested by water for strength according to EN 12266.
- Strength test pressure: minimum 1.5 x nominal pressure.
- Certification and documentation can be discussed according to project requirements.
Installation
- The strainer can be installed in different pipeline positions, but the screen chamber should face downward for effective collection and maintenance.
- Flow direction should follow the body mark.
Operation
- Self-acting by line pressure.
- Screen inspection and cleaning intervals depend on media cleanliness and service conditions.
Standards and Compliance
- Flanged connections: EN 1092-1
- Butt-welded ends: EN 12627
- Face-to-face dimensions: EN 558-1
- Pressure testing: EN 12266
- Material selection: project and service-condition dependent
Typical specifications are listed above. Actual configurations vary by supplier, material grade and project requirements. Contact Honiks with your working conditions for detailed quotation support.
FAQ
Q: What is the main function of the HN66 Y-strainer?
It removes solid particles from flowing media before they reach downstream equipment such as pumps, meters, steam traps, control valves and regulators.
Q: Can the screen be replaced or cleaned?
Yes. The screen element is designed for maintenance access. Cleaning intervals depend on media cleanliness, differential pressure and service conditions.
Q: Which screen material is available?
SS304 and SS316 screen options are listed in the catalog. Final selection should be confirmed according to fluid compatibility and project requirements.
Q: Can HN66 be supplied with flanged and butt-welded ends?
Yes. HN66 can be supplied with EN 1092-1 flanged ends or project-dependent butt-welded ends.
Q: Is this product manually operated?
No manual operation is required for filtration. The strainer works by line pressure, while screen cleaning is handled during maintenance.
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