Description
Cast Iron Handle Operated Lug Butterfly Valve Description
Cast iron lug butterfly valves with handle operation provide rugged, reliable manual flow control. The valves have a cast iron body and lug ends with ANSI standard bolt patterns for easy installation between pipe flanges. A ductile iron disc rotates inside the body to regulate flow, sealing against a molded seat when closed.
A stainless steel shaft connects the disc to an external lever or gear operator handle for manual modulation. Handle mechanisms provide the torque needed to open and close the valve against line pressure. Valve sizes range from 3″ to 24″ diameters to handle substantial flow rates.
The cast iron body and disc offer excellent corrosion resistance. The molded seat provides shutoff while allowing some flexibility and compliance. Together, the components create a tight seal when closed and prevent leakage. Cast iron lug butterfly valves are an economical solution for manual flow control across a variety of applications.
Size: 1½” – 48″ (DN40 – DN1200)
Standard: DIN/BS/ANSI/Korean
Structure: Butterfly
Pressure: PN10,PN16, PN25
Coating: WRAS approved epoxy powder at 300 micron thick
Media: Water
Certificate: ISO, SGS, CE
| Name | Material |
| Body | CI, DI, WCB, CF8,CF8M… |
| Stem | Carbon steel with galvanization, SS420, SS304, SS3316 |
| Disc | DI, CF8, CF8M, C95400 |
| handle | Iron or aluminum |
| Seat | EPDM, NBR, VITON,SILICON,PTFE |
Cast Iron Handle Operated Lug Butterfly Valve Features:
- Cast iron body and lug ends provide durability
- ANSI standard lug patterns for easy installation
- Ductile iron disc for strength and corrosion resistance
- Molded seat creates tight seal when closed
- Stainless steel shaft resists corrosion
- External lever or gear handle for manual actuation
- Handle mechanism produces high torque for modulation
- Sizes range from 3″ to 24″ diameters
- Suitable for water, air, oil, and neutral chemicals
- Reliable shutoff and flow control
- Economical manual valve solution
- Compact and lightweight design
- Commercial and industrial applications
- Throttling and isolation usage
Cast Iron Handle Operated Lug Butterfly Valve Advantages:
- Durable Construction – Cast iron and ductile iron materials withstand harsh conditions.
- Tight Shutoff – Molded seat provides positive shutoff when closed.
- Easy Maintenance – Handle operator and seat are easily accessed for maintenance.
- Manual Control – Handle operation allows precise flow control without automation.
- Cost Effective – More affordable than automated valve solutions.
- Compact Size – Smaller and lighter than many other manual valves.
- ANSI Standard – Lug patterns enable easy installation and replacement.
- Corrosion Resistant – Cast iron and stainless steel construction.
- High Flow Capacity – Available in larger sizes from 3″ to 24″ diameters.
- Low Torque Operation – Smooth handle control even at high pressures.
- Reliable Performance – Proven design for industrial applications.
- Versatile Service – Suitable for water, air, oil, chemicals.
- Throttling/Isolation – Handles both flow control and positive shutoff.
Cast Iron Handle Operated Lug Butterfly Valve applications
- Water Lines – Throttling and isolation in municipal water systems.
- Wastewater – Flow control in sewage and wastewater treatment plants.
- Chemical Processing – Regulating corrosive and neutral chemical flows.
- Petroleum – Manual control of crude oil and refining applications.
- Gas Service – On/off control of low pressure gas lines.
- Steam Lines – Throttling low pressure steam distribution.
- Cooling Systems – Regulate chiller water and other cooling media.
- Fire Protection – Shutoff service for sprinkler system water lines.
- Tank Outlets – Controlling release of liquids from storage tanks.
- Pump Discharge – Regulating output flows from water pumps.
- Branch Lines – Isolating parallel lines from main process headers.
- Agricultural – Flow control in irrigation and fertilizer distribution.
- Industrial Plants – Manual process control valves with tight shutoff.