Cast Iron Natural Gas Ball Valves

A cast natural gas ball valve is a three-piece threaded valve with a ductile iron body and antistatic stem made for natural gas and LPG lines. The antistatic stem transfers any static charge between ball and body to the body, preventing sparks.
It is offered from ½” to 2″ in PN25 and PN40 classes with MOP20 operating pressure; besides full bore, a reduced bore option is available. It is used in industrial gas distribution and on burner and boiler gas supply lines.
Main Applications
- Industrial natural gas distribution lines
- Burner and boiler gas supply lines
- LPG tank and distribution lines
- Before and after gas regulators
- Gas compressor and heater connections
Technical Data
| Connection | Threaded |
|---|---|
| Thread size | ½” – 2″ |
| Pressure class | PN25 / PN40 |
| Operating pressure | MOP20 |
| Body | Ductile iron, three-piece |
| Ball | Solid stainless steel |
| Stem | Antistatic |
| Bore | Full bore; reduced bore option |
| Standards | TS EN 331, TS 9809 |
Material Options
| Part | Cast natural gas valve |
|---|---|
| Body | Ductile iron |
| Ball | Solid stainless steel |
| Stem | Antistatic (material by model) |
| Seat seal | Gas-rated (by model) |
Which material? On industrial gas lines a cast natural gas valve is used where the MOP limit of brass gas valves is not enough. The valve should be chosen to the operating pressure and standard requirements in the gas project.
Advantages
Antistatic Safety
- Against spark risk
High Operating Pressure
- MOP20
In-Line Service
- Three-piece body
Gas Standards
- TS EN 331, TS 9809
Construction and Design Features
- Three-piece ductile iron body
- Solid stainless ball
- Antistatic stem arrangement
- Threaded end pieces
Write the line size, operating pressure and gas type; we will confirm the cast natural gas valve with stock details.
How to Choose?
- Get the operating pressureFind the MOP value in the gas project.
- Select the sizeChoose the line size between ½” and 2″.
- Choose the boreDecide full or reduced bore.
- Confirm the standardCheck TS EN 331 compliance.
Complementary Products
Why ORFA?
Other Cast Iron Threaded Ball Valves
Our Cast Iron Natural Gas Ball Valves
ORFA supplies cast iron natural gas ball 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.
Get a quote for your project
Our sales team will prepare the best solution for your needs.

