Cast Iron Y-Strainer
Flanged cast iron Y-strainer with ductile iron body and stainless steel mesh screen for trapping suspended solids, grit, and debris in piping systems.
- Effective protection for pumps, flow meters, and control valves against line debris and grit
- Rugged ductile iron pressure envelope resisting water hammer surges and mechanical stresses
- High-grade stainless steel internal screen resisting corrosion, fouling, and hydraulic wear
- Bolted cover with drain plug enabling rapid screen flushing without dismounting the valve
- Standard flanged ends providing leak-tight jointing across PN10 and PN16 pressure ratings
Key Specifications
- Product code
- P114
- Material & grade
- Ductile iron
- Nominal diameter
- DN32 to DN400
- Nominal pressure (at 20 °C)
- PN10 to PN16
- Joint type
- Flanged
- Unit of sale
- Piece
- Applications
- Drinking water supply, Irrigation & agriculture, Industrial
- Dimensional options
- 24 rows in the specification table
Filtration mechanism of cast iron Y-strainers
The Y-strainer is an indispensable protective device installed upstream of pumps, control valves, pressure regulators, and meters. As fluid passes through the angled basket chamber, suspended sand, weld slag, and rust flakes are arrested by the mesh screen, shielding rotating pump impellers and precision valve seats from mechanical scoring. The angled Y-body allows trapped debris to collect in the basket without obstructing laminar flow.
The pressure vessel is cast from heavy-duty ductile iron, engineered to endure hydraulic shock and dynamic surges. The internal cylindrical screen is fabricated from perforated stainless steel sheet, resisting corrosion and high differential pressure collapse.
Size coverage and blowdown maintenance procedures
Cast iron Y-strainers are typically supplied across nominal diameters from DN32 up to DN400 in PN10 and PN16 pressure ratings for municipal and agricultural installations.
Routine cleaning is performed by opening the blow-off plug or unbolting the blind cover to slide out the stainless steel basket for water flushing. Proper field orientation requires aligning the body flow arrow with stream direction and directing the Y-chamber downward. Enter your required nominal size in our RFQ form for official submittals.
Cast Iron Y-Strainer — Technical Specifications
Wall thickness and weight are calculated from the standard series and are approximate; final values are confirmed in the quotation.
| Nominal Diameter | Nominal Pressure (bar) |
|---|---|
| DN32 | 10 |
| DN32 | 16 |
| DN40 | 10 |
| DN40 | 16 |
| DN50 | 10 |
| DN50 | 16 |
| DN65 | 10 |
| DN65 | 16 |
| DN80 | 10 |
| DN80 | 16 |
| DN100 | 10 |
| DN100 | 16 |
| DN150 | 10 |
| DN150 | 16 |
| DN200 | 10 |
| DN200 | 16 |
| DN250 | 10 |
| DN250 | 16 |
| DN300 | 10 |
| DN300 | 16 |
| DN350 | 10 |
| DN350 | 16 |
| DN400 | 10 |
| DN400 | 16 |
Cast Iron Y-Strainer — FAQ
What sizes are typical for cast iron Y-strainers?
These strainers are typically manufactured across nominal diameters from DN32 up to DN400 in PN10 and PN16 classes.
What material is used for the internal strainer screen?
The internal filter screen is fabricated from perforated stainless steel sheet, resisting corrosion and mechanical tearing.
Where should the Y-strainer be positioned within a pipeline?
The strainer should be installed immediately upstream of pumps, flow meters, and sensitive control valves.
How is the strainer screen cleaned during routine maintenance?
After isolating line pressure, unbolting the bottom cover allows the basket to be withdrawn and rinsed with pressurized water.
