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Butterfly Valve

Metal Seated Eccentric Butterfly Valve

Model: D671H-150Lb-16 inch

Debug · supplier source (internal only)

EFC datasheet PDF ↗supplier: watts · ref: 288

Specifications

Confirmed at quote
Size Range
DN50, DN65, DN80, DN100, DN125, DN150...
Pressure Class
Class 150
Standards
BS 1868, API 609, ASME B16.10, API 6D, API 598, ASME B16.34, MSS SP-55, MSS SP-25

Available sizes

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

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
Dimensions per size(14 sizes)
SizeLD1n-MWeight
DN5043 mm125 mm4-M16
DN6546 mm145 mm4-M16
DN8064 mm160 mm8-M16
DN10064 mm180 mm8-M16
DN12570 mm210 mm8-M16
DN15076 mm240 mm8-M20
DN20089 mm295 mm12-M20
DN250114 mm355 mm12-M24
DN300114 mm410 mm12-M24
DN350127 mm470 mm16-M24
DN400140 mm525 mm16-M27
DN450152 mm585 mm20-M27
DN500152 mm650 mm20-M30
DN600154 mm770 mm20-M33

Actuation options

pneumatic

Approvals

Lloyd's Register (LR) type approvalECM (Ente Certificazione Macchine)ISOEACCEBureau VeritasACS (Attestation de Conformité Sanitaire)WRAS Approved Product

Features

  • Triple eccentric / offset disc design minimises wear during operation
  • Metal-to-metal seating
  • Quarter-turn operation
  • Multiple body material options including carbon steel, stainless steel, alloy steel, super duplex, aluminium bronze, Monel, Inconel, Hastelloy, and Incoloy
  • Corrosion-resistant coating options
  • Triple-offset (triple eccentric) disc geometry
  • Flanged body with raised-face flanges
  • Gearbox (worm gear) actuator fitted as standard shown
  • Multi-level seal packing collar on disc/body seating area
  • Clamp-retained seat arrangement
  • Separate clamp component securing seat packing collar
  • Body and disc identified as distinct sealing components in sectional callout
  • Part numbering 1–12 visible on sectional diagram (detail not fully legible)
  • Dimension references: L (face-to-face), DN (nominal bore), D1 (bolt circle diameter), n-M (number and size of flange bolts)
  • Metal-to-metal seat configuration visible in product photos
  • Available in multiple finish/material variants: blue-painted ductile iron/cast iron body with bronze disc (index 0); stainless steel body and disc (index 1 and 2); red-painted body (index 3); bare stainless/carbon steel (index 4 and 5)

Notes

  • Diagram: Sectional/assembly drawing of a triple-offset flanged butterfly valve showing: front elevation with flange bolt pattern (n-M holes on D1 bolt circle), side cross-section with DN bore dimension and face-to-face dimension L, parts list callouts numbered 1–12 (handwheel/gearbox=1, gearbox housing=2, stem/shaft components=3–6, body=7–10 area), and enlarged detail section 'A' showing disc, body, clamp, and multi-level seal packing collar arrangement

Description

A triple eccentric butterfly valve with metal-to-metal seating, designed for high-temperature, abrasive, and high-pressure applications. Features an offset disc geometry that minimises wear during operation. Available in multiple body materials including carbon steel, stainless steel, and various alloys.

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