Threaded Y-Type Strainers
Threaded Y-type strainers are compact filters screwed in ahead of sensitive components on small-bore lines, such as pumps, meters, solenoid valves, steam traps and pressure reducers, collecting sediment and burrs from the fluid in a stainless screen. They are most often used in the 1/2″–2″ range with female threaded connections.
Bodies are offered in brass (PN16 or PN25) and stainless steel (AISI 304 or investment-cast AISI 316); brass types go up to 4″. On the brass PN16 type, the maximum allowable pressure is 16 bar, the maximum allowable temperature 130 °C and the continuous operating temperature 110 °C. The screen sits under the angled cap; the cap is removed to take out and clean the screen.
Main Applications
- Hot and cold domestic water lines
- Steam trap inlets
- Upstream of water meters and pressure reducers
- Suction side of circulation pumps
- Stainless applications on chemical and food lines
Technical Data
| Connection | Female thread, ISO 228-1 (BSPP) |
|---|---|
| Brass PN16 sizes | 1/2″ … 2″ (up to 4″ on some types) |
| Brass PN16 pressure | PMA / PMO 16 bar |
| Brass PN16 temperature | TMA 130 °C · TMO 110 °C |
| Brass PN25 types | 1/2″ … 2″; values depending on model |
| Stainless AISI 304 types | 1/2″ … 3″; pressure and temperature depending on model |
| Stainless AISI 316 types | 1/2″ … 2″, investment-cast body; values depending on model |
| Screen | Stainless steel; mesh depending on model |
| Weight (brass PN16) | 156 g (1/2″) … 797 g (2″) |
| Flow direction | As shown by the arrow on the body |
| Mounting position | In horizontal lines with the screen facing down |
| Maintenance | Remove the cap, take out the screen, clean with a soft brush |
Material Options
| Part | PN16 · brass | PN25 · brass | Stainless · AISI 304 | Stainless · AISI 316 |
|---|---|---|---|---|
| Body | Brass | Brass | AISI 304 | AISI 316 investment cast |
| Cap | Brass | Depending on model | AISI 304 | AISI 316 |
| Screen | Stainless steel | Stainless steel | Stainless steel | AISI 316 |
| Cap gasket | Compressed fibre gasket | Depending on model | Depending on model | Depending on model |
Installation note: Fit the strainer ahead of the device to be protected and in the direction of the flow arrow; in systems that may exceed 16 bar, a pressure safety device is placed ahead of the brass PN16 type. Adding a ball valve at the inlet and outlet to isolate the line during cleaning shortens maintenance time.
Advantages
Compact Body
- A 1/2″ brass type weighs about 156 g.
- Fits into tight pipework spaces.
Material Choice
- Brass for general water, stainless for chemical lines.
- A body suited to the fluid.
Easy Cleaning
- The screen comes out through the angled cap.
- Maintenance without removing pipework.
Device Protection
- Burrs and sediment are caught at the first point.
- Fewer pump and valve failures.
Standard Thread
- ISO 228-1 parallel thread.
- Compatible with common fittings.
Construction and Design Features
- Y-angled one-piece cast body
- Cap screwed into the body with sealing gasket
- Cylindrical stainless screen
- Flow direction arrow on the body
- Drain plug on the cap on some types
Send the line size, fluid, pressure and temperature through the Request a Quote form; we will prepare a brass or stainless threaded strainer in the right class.
How to Choose?
- Define the fluidBrass for potable and domestic water, stainless for aggressive fluids.
- Check the pressure classIf working pressure approaches 16 bar, move to PN25 brass or a stainless type.
- Confirm the temperatureOn the brass PN16 type, continuous temperature must not exceed 110 °C.
- Match the size to the lineChoose the body size equal to the pipe size, without reducing.
- Plan access for maintenanceLeave room to remove the cap and fit isolating valves.
Complementary Products
Why ORFA?
Other Y-Type Strainers
Our Threaded Y-Type Strainers
ORFA supplies threaded y-type strainers in a range of pressure classes, sizes and connection types to suit your application. Descriptions, technical specifications, materials and dimension tables are available on each detail page.
Get a quote for your project
Our sales team will prepare the best solution for your needs.