High Performance Carbon Steel Double Offset Lugged Butterfly Valve

Carbon Steel Double Offset Butterfly Valve – Lugged PN16/25

The Carbon Steel Double Offset Butterfly valve is a high-performance, lugged design suitable for challenging flow control applications. Featuring a double eccentric disc, this valve reduces wear and operating torque by minimising contact between the disc and seat during operation—ideal for frequent cycling and critical shut-off conditions.

Manufactured with a carbon steel body and stainless steel disc and shaft, the valve is fitted with a reliable RPTFE seat. It provides precise, bi-directional shut-off across pressure ratings of PN16 and PN25, depending on the valve size. Suitable for temperatures ranging from –60 °C to +230 °C, this rugged valve excels in industrial and utility sectors.

The lugged body design allows it to be securely installed between flanges and supports dead-end service. Available with manual lever operation (2″–5″) or a gearbox (6″–12″), with automation possible via the ISO 5211 actuator mounting flange.

🔧 Key Features

• Double Offset Disc Design for reduced torque and improved sealing longevity

• Carbon Steel Body (WCB) with lugged ends for secure flange connection and dead-end service

• Stainless Steel Disc & Shaft for excellent corrosion resistance and strength

• RPTFE Seat offers reliable sealing and temperature resistance (up to +230 °C)

• Pressure Rated to PN25 (2″–4″) and PN16 (5″–12″)

• Wide Temperature Range: –60 °C to +230 °C

• Manual or Actuated: Lever or gearbox, with ISO 5211 actuator compatibility

• Optional ANSI 150 flanges and Inconel seat upgrade for fire-safe applications

🏭 Ideal Applications

The Carbon Steel Double Offset Butterfly valve is suited to industries requiring durability, precision, and compact performance, including:

• Oil & gas

• Chemical and petrochemical processing

• Water and wastewater treatment

• Power generation and HVAC

• General industrial flow systems