Aluminum Bronze Disc PTFE Seat Lug Butterfly Valve with Gear Operator

Size Range

DN50-DN1200

Pressure Class

PN10/Class 300

Standards

API 609, ANSI 16.34, JIS B2064, GB/T 12238, DIN 3202, ISO 5752, BS 5155, API 598, ISO 5211, DIN 2501 PN10/16, ANSI 125/150/300, BS 4504, JIS 10K

End connection

Lug type

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")DN700 (28")DN800 (32")DN900 (36")DN1000 (40")DN1200 (48")

Pressure

PN10PN16PN25PN40PN64PN100PN160PN250Class 150Class 300

End connection

Lug DIN 2501 PN10/16Lug ANSI 125/150/300Lug BS 4504Lug JIS 10K

Materials

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

body

CIDICSSS

disc

Aluminum Bronze

seat

EPDMPTFEVITONNBRHypalon

stem

SS416SS316SS304CS

bushing

PTFEBronze

o ring

NBREPDM

pin

SS

Operating media

Actuation options

Approvals

Features

• Aluminium bronze disc providing resistance to seawater and chemically aggressive environments
• PTFE seat providing stable sealing performance and low operating friction
• Lug-type body allowing secure bolting and end-of-line service
• Gear operator for controlled manual actuation in medium and large diameters
• Suitable for on-off isolation service; not intended for flow regulation
• Lug-type body configuration
• Gearbox (worm gear) actuator fitted
• PTFE/white polymer seat lining visible
• Stainless steel disc
• Red threaded lug inserts in body
• Stem with upper and lower bearings (items 4 and 5 in diagram)
• 7-part construction visible in sectional diagram: body (1), seat (2), disc (3), lower stem bearing (4), upper stem bearing (5), stem (6), gland/packing (7)

Notes

• Our products hold up to 10 international authoritative certification certificates, ensuring compliance with global standards.
• Diagram: Sectional and front elevation dimensional drawing of a lug-type butterfly valve showing key dimensions: C (face-to-face), d0 (bore), K (stem square), E, z-d (bolt pattern), g (stem top dimension), h, p, b, l, ØD1, n-Ød1, ØE, ØK, z-Ød. Parts numbered 1–7 on cross-section: 1=body, 2=seat, 3=disc, 4=lower stem bush, 5=upper stem bush, 6=stem, 7=gland area.
• Diagram: Dimension table listing face-to-face (C), bore (d0), and flange drilling dimensions for DN50–DN1200 (2"–48") across PN10, PN16, ANSI 150, and JIS 10K flange standards.

Description

A lug-type butterfly valve fitted with an aluminium bronze disc and PTFE seat, intended for on-off isolation service in pipeline systems handling corrosive or chemically aggressive media. The lug body configuration supports end-of-line service. A gear operator provides controlled manual actuation, particularly in medium to large diameters where torque reduction is required.