The Caleffi 120371A 000 is a 120 Y-Strainer with 1-1/4" NPT connections.
Best for protecting pumps, control valves and heat exchangers from scale and construction debris.
Specifications sourced from Caleffi North America technical literature. Last reviewed July 2026.
Key Features
Removable Stainless Steel Screen
A stainless mesh element traps scale, weld slag and debris before it reaches pumps, valves and heat exchangers, and lifts out for cleaning without removing the body.
Integral Blowdown Ball Valve
A built-in ball valve on the blowdown port lets the screen be flushed under pressure without draining the system or adding a separate valve.
Pressure/Temperature Test Ports
Integral P/T ports allow differential pressure and temperature to be read directly at the strainer for commissioning and troubleshooting.
Technical Specifications
| Product Type | Y-Strainer |
| Connection Size | 1-1/4" |
| Connection Type | NPT |
| Series | 120 Y-Strainer |
| Integral Ball Valve | Included |
| P/T Test Ports | Included |
| Maximum operating pressure | 400 psi |
| Medium temperature range | 32-212 deg F |
| Maximum glycol % | 50 % |
| Medium | water, glycol solutions |
| Material | brass |
| Shipping Weight | 6.0 lb (approx.) |
Documentation
Design Resources
Related Products
- Caleffi 120171A 000 : 120 Y-Strainer 1-1/4" NPT w/ Ball Valve
- Caleffi 120179A 000 : 120 Y-Strainer 1-1/4" Press/Sweat w/ Ball Valve
- Caleffi 120379A 000 : 120 Y-Strainer 1-1/4" Press/Sweat w/ Ball Valve + P/T Port
- Caleffi 120141A 000 : 120 Y-Strainer 1/2" NPT w/ Ball Valve
Frequently Asked Questions
What does Caleffi 120371A 000 do?
It is a y-strainer. A removable stainless steel screen captures scale, weld slag and construction debris before it reaches pumps, control valves and heat exchangers, where that debris would cause wear or blockage.
Can the screen in Caleffi 120371A 000 be cleaned?
Yes. The screen is removable for cleaning and reuse. The integral blowdown ball valve allows the screen to be flushed under pressure without draining the system.
What connection does Caleffi 120371A 000 use?
It is supplied with 1-1/4" NPT connections. Other sizes and connection styles in the 120 Y-Strainer range are listed under Related Products.
What are the pressure and temperature limits of Caleffi 120371A 000?
Maximum operating pressure is 400 psi.
What is the warranty on Caleffi 120371A 000?
Caleffi covers this product under its standard two-year limited warranty against defects in material and workmanship from the date of shipment. ZOT Supply is an authorized Caleffi distributor.
- Product Type:
- Y-Strainer
- Series:
- 120 Y-Strainer
- Product Family:
- Y-strainers
- Connection Type:
- NPT
- Connection Size:
- 1-1/4 inch
- Integral Ball Valve:
- Yes
- P/T Test Ports:
- Yes
- Max Operating Pressure:
- 400 psi