Cast Iron Threaded Ball Valves

Ductile Iron Threaded Ball Valves

A ductile iron threaded ball valve is a threaded isolation valve with a three-piece ductile iron body and solid stainless steel ball that works at pressures and temperatures beyond brass limits. The centre body can be removed for service while the ends stay on the pipe.

General-purpose models are offered from ½” to 2½” in PN16, PN25 and PN40 classes and used on water, high-temperature water, compressed air and industrial gases between −10 °C and +200 °C. The top flange allows an actuator to be fitted later.

½” – 2½”thread size

PN40top pressure class

+200 °Cmax. temperature (manufacturer data)

3-piecebody design

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Main Applications

High-temperature and hot water lines
Compressed air and industrial gas lines
Pump and heat exchanger service valves
Boiler room distribution lines
Mid-size lines to be automated later

Technical Data

Connection	Threaded
Thread size	½” – 2½”
Pressure class	PN16 / PN25 / PN40
Temperature	−10 °C … +200 °C (manufacturer data)
Body	Ductile iron (cast iron option)
Ball	Solid stainless steel
Body design	Three-piece
Bore	Full bore
Top flange	Suited to actuator mounting
Compliance	TS 3148, PED 2014/68/EU

Material Options

Part	Ductile iron	Cast iron
Body	Ductile iron	Cast iron
Ball	Solid stainless steel	Solid stainless steel
Stem	By model	By model
Seat seal	By model	By model

Which material? Ductile iron withstands impact and pressure surges better than cast iron; a ductile body is preferred on high-temperature water and vibrating lines. The temperature-dependent pressure rating is confirmed from the product datasheet.

Advantages

High Temperature

Up to 200 °C

In-Line Service

Centre body removable

Solid Ball

Stainless, wear resistant

Automation Ready

Actuator flange

Construction and Design Features

Three-piece ductile iron body
Solid stainless steel ball
Top flange suited to actuator mounting
Threaded end pieces

Write the thread size, pressure class and medium; we will confirm the ductile iron valve with stock details.

How to Choose?

Define the mediumState water, hot water, air or gas.
Select the pressure classPick PN16, PN25 or PN40 by service conditions.
Check the temperatureVerify the 200 °C limit and pressure derating in the datasheet.
Plan automationCheck the flange size if an actuator will be fitted.

Complementary Products

Stainless Steel Threaded Fittings Pneumatic Actuators Electric Actuators Y-Type Strainers Pressure Gauges Safety Valves

Why ORFA?

Since 1985Over 40 years of experience in supplying industrial piping equipment.

Technical ConsultancyDuctile iron valve selection for hot water and gas lines.

Delivery from Stock½”–2½” ductile iron valves shipped from stock.

Compatibility CheckWe check the top flange against the actuator to be fitted.

In This Group

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Cast Iron Natural Gas Ball Valves

Cast iron natural gas ball valves have a cast body and threaded ends and suit natural gas lines.

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Our Products

Our Ductile Iron Threaded Ball Valves

ORFA supplies ductile iron threaded 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.