Demco Butterfly Valve

CV. FRANS TEKNIK MANDIRI

Acclaimed as the most durable of all resilient-seated butterfly valves in the industry, this valve excels in a wide variety of applications.

Cast in both wafer and tapped-lug patterns in a wide variety of material choices, DEMCO butterfly valves feature a one-piece body for minimum weight and maximum strength. The unique stem hole design in the disc ensures a dry stem journal, and the hard-backed seat (2" - 36") allows ease of installation, reliable operation, and is field-replaceable without special tools. Demco butterfly valves are available in sizes 2" thru 36". Engineered for long-term, maintenance- free performance, Demco butterfly valves are commonly selected for a variety of applications spanning a wide range of industries:

• Chemical and petrochemical
• Agriculture
• Oil and gas drilling and production
• Food and beverage
• Water and waste water
• Cooling towers (HVAC)
• Power
• Mining and materials
• Dry bulk handling
• Marine and government

CV. FRANS TEKNIK MANDIRI

DEMCO NF-C Butterfly Valve

Sizes 14 in. through 36 in. (350 mm through 900 mm) are available in
both wafer and lug styles. The wafer body has two drilled locator lugs
at top and bottom for ASME Class 150 flanges. Bronze bearings are
installed on both stems for minimum operating torque.

CV. FRANS TEKNIK MANDIRI

DEMCO Series NE-D Valve 

Sizes 2 in. through 12 in. (50 mm through 300 mm), it is a short neck
valve with body notches to fit popular lightweight flange patterns,
making it ideal for bulk material handling and the transportation
industry. Valves will also center in ASME Class 125/150 flanges.

CV. FRANS TEKNIK MANDIRI

DEMCO Series NE-I Butterfly Valve

Sizes 2 in. through 12 in. (50 mm through 300 mm), it is suited for a
wide range of applications in many industries, including food and
beverage utilities and process flow lines. This short neck design is
offered in a wide variety of body materials. The valves are designed for
installation between ASME Class 125/150 flanges.