Gear Operated Wafer Butterfly Valve with Aluminum Bronze Disc and EPDM

Name: Gear Operated Wafer Butterfly Valve with Aluminum Bronze Disc and EPDM
Brand: Euro Flow Control
SKU: EFC-281
Availability: InStock

Debug · supplier source (internal only)

Supplier product page ↗EFC datasheet PDF ↗supplier: watts · ref: 281

Specifications

Confirmed at quote

Size Range: DN50-DN1200
Pressure Class: PN10/PN16
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: Wafer type
Face-to-face: ISO 5752 Series 20
Operating temperature: -10°C to +120°C

Available sizes

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

DN50 DN65 DN80 DN100 DN125 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 DN700 DN800 DN900 DN1000 DN1200

Available pressure classes

Pressure classes this product is rated to.

PN10 PN16

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

Size
Pressure
End connection

Materials

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

body
disc
seat
stem
shaft
bushing
o ring
pin

Operating media

waterseawaterchemicalsairsteamoilacidssalts

Actuation options

manual gearbox

Coatings

epoxy coating

Approvals

LR (Lloyd's Register)ECM (Ente Certificazione Macchine)ISOEACCEBureau VeritasACS (Attestation de Conformite Sanitaire)WRAS Approved Product

Features

Wafer-type body for installation between flanges
Aluminium bronze disc for corrosion resistance in water and mildly corrosive media
EPDM seat for elastic sealing and shut-off
Worm gear operating mechanism for precise flow control
Reduced operating torque due to smooth disc rotation
ISO 5211 top flange for actuator mounting
Available in a wide range of sizes DN50–DN1200
Multiple body, seat, and shaft material options available
Wafer-style butterfly valve with gearbox operator
Disc visible, stainless steel construction
Body marked DN100 (image 0)
Disc marked C954 (aluminium bronze alloy, images 4 and 5)
Rubber-lined body/seat
Sectional diagram shows 7 numbered component parts
Dimensional drawing references: C (face-to-face), d0 (stem diameter), K (stem top flange), E (bolt circle), z-d (bolt holes), g (stem top flange diameter), h (stem top flange height), p (bolt hole pitch), b (body width), D1 (flange OD), n-Od1 (number and diameter of bolt holes)
Flange drilling compatible with PN10, PN16, ANSI 150, JIS 10K

Notes

Can also be customized to meet specific project requirements.
Diagram: Dimensional drawing (image 7): Front and side cross-section views of wafer butterfly valve with labelled dimensions C, d0, K, E, z-d, g, h, p, b, D1, n-Od1, ØD1. Seven numbered part callouts on sectional view (parts 1–7). Separate flange face view showing bolt-hole pattern.
Diagram: Specification/dimension table (image 8): Full size range DN50–DN1200 (2"–48") with columns for C, d0, K, E, z-d, g, h, p, bXl, and flange drilling dimensions for PN16, PN10, ANSI 150, and JIS 10K standards.

Description

A wafer-type butterfly valve actuated by a worm gear mechanism, designed for installation between flanges in space-constrained pipeline applications. The disc is aluminium bronze for corrosion resistance in water, seawater, and mildly corrosive media; the seat is EPDM for elastic sealing. Available in sizes DN50–DN1200 with multiple body and seat material options.