Threaded Cast Iron Check Valves
A threaded cast check valve is a non-return valve with a ductile or cast iron body that screws directly onto the pipe. A cast body offers higher mechanical strength than brass and is preferred on vibrating lines.
It is used on heating circuits, pump discharge lines and industrial water lines. The closing element (swing disc, spring disc or ball), size and pressure class are selected by model.
Main Applications
- Heating and boiler room lines
- Pump discharge lines
- Industrial cooling water lines
- Vibrating machine connections
- Condensate lines (by model)
Technical Data
| Body | Ductile iron or cast iron (by model) |
|---|---|
| Connection | Threaded |
| Closing element | Swing disc, spring disc or ball (by model) |
| Thread size | By model (group ¼” – 4″) |
| Pressure class | By model (group PN16–PN25) |
| Temperature | By model |
| Installation | Follow the flow arrow (by model) |
Material Options
| Part | Ductile iron | Cast iron |
|---|---|---|
| Body | Ductile iron | Cast iron |
| Closing element | By model | By model |
| Seal | By model | By model |
| Use | Vibration and impact | Static lines |
Which material? Ductile iron withstands impact and pressure surges better than cast iron; prefer a ductile body at pump outlets and on vibrating lines.
Advantages
Mechanical Strength
- Cast body
Vibration Suited
- Ductile option
Three Closing Types
- Swing, spring, ball
Economical
- For industrial lines
Construction and Design Features
- Ductile or cast iron threaded body
- Swing disc, spring disc or ball
- Cap or plug (by model)
- Female threaded ends
Write the thread size, closing type and line conditions; we will confirm the cast check valve with stock details.
How to Choose?
- Choose the bodyUse ductile iron on vibrating lines.
- Decide the closing typePick swing, spring or ball by orientation.
- Write the sizeSet the pipe thread size.
- Check the pressureCompare the PN class with operating pressure.
Complementary Products
Why ORFA?
Other Threaded Check Valves
Threaded Swing Check Valves
Threaded swing check valves stop reverse flow with a hinged disc and have threaded ends.
Details →
Threaded Ball Check Valves
Threaded ball check valves stop reverse flow with a ball inside the body and have threaded ends.
Details →
Threaded Horizontal Check Valves
Threaded horizontal check valves prevent reverse flow on horizontal lines and have threaded ends.
Details →
Threaded Spring Check Valves
Threaded spring check valves have a spring-loaded disc that works in any position, with threaded ends.
Details →
PVC-U Check Valves
PVC-U check valves are corrosion-resistant plastic check valves with a rigid PVC body that prevent reverse flow.
Details →Our Threaded Cast Iron Check Valves
ORFA supplies threaded cast iron check valves 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.
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