Cast Iron Lug Butterfly Valve

Size Range

DN50-DN600

Pressure Class

PN10/Class 300

Standards

API609, ANSI16.34, JISB2064, GB T12238, DIN3202, ISO5752, BS5155, API598, ISO5211, DIN2501 PN10/16, ANSI 125/150/300, BS4504, JIS10K

End connection

Lug type flange (EN 1092-1)

Face-to-face

EN 558 Series 20

Operating temperature

-10°C to +120°C

Available sizes

Standard DN sizes covered by this product. Confirmed at quote.

Available pressure classes

Pressure classes this product is rated to.

Configure your variant(manually adjust box on the right if you require a different spec)

Size

DN50 (2")DN65 (2 1/2")DN80 (3")DN100 (4")DN125 (5")DN150 (6")DN200 (8")DN250 (10")DN300 (12")DN350 (14")DN400 (16")DN450 (18")DN500 (20")DN600 (24")

End connection

Lug DIN2501 PN10/16Lug ANSI 125/150/300Lug BS4504Lug JIS 10K

Materials

All available material options per part. Click a pill to set it in the configurator.

body

Cast IronDuctile IronCarbon SteelStainless Steel

disc

Ductile IronCarbon SteelStainless Steel

seat

EPDMNBRPTFEVITONHYPALON

stem

Stainless Steel 416Stainless Steel 316Stainless Steel 304

bushing

PTFEBRONZE

o ring

EPDMNBR

Operating media

Actuation options

Approvals

Features

• Lug-type body allowing end-of-line service
• Multiple body material options: cast iron, ductile iron, carbon steel, stainless steel
• Multiple seat elastomer options: EPDM, NBR, PTFE, Viton, Hypalon
• Stainless steel stem in grades 304, 316, or 416
• ISO5211 top flange for actuator mounting
• Pressure ratings to PN16 and Class 300
• Lug-type body configuration
• Lever operated with spring-return locking handle
• Rubber-lined seat/liner visible within body bore
• Stainless steel disc marked CF8
• Stem marked CI 4 (cast iron grade 4)
• Body marked EN1092 (flange standard)
• 150LB pressure class marking visible on body
• Disc marked CF8 (ASTM equivalent of 316 stainless steel)
• Disc also marked IO4 (likely material/batch code)
• Part numbered sectional diagram with 7 called-out components
• Flanged bolt patterns for PN10, PN16, ANSI 150 and JIS 10K

Notes

• butterfly valve manufacturers
• Diagram: Image 8: Sectional/dimensional drawing of lug-type butterfly valve showing front elevation with bolt-hole pattern (n-Ød1, ØD1), cross-section view with key dimensions labelled (Øg, h, Ød0, C, ØE, ØK, z-Ød, P, b) and seven numbered part call-outs (1–7), plus bottom view showing stem-top ISO pad dimensions (b).
• Diagram: Image 9: Tabulated dimension data for lug butterfly valve sizes DN50–DN1200 (2"–48"), covering face-to-face (C), disc bore (d0), bolt circle and hole data for PN10, PN16, ANSI 150 and JIS 10K flange drillings.

Description

A lug-type butterfly valve available in cast iron, ductile iron, carbon steel, and stainless steel body materials, designed for flow control in water supply, drainage, and industrial piping applications. Offered in sizes DN50 to DN600 with nominal pressures PN10/16 and 150–300 LB. Suitable for a range of media including water, chemicals, air, steam, oil, acids, and salts.