Description

Ductile-Iron Manual Wafer Butterfly Valve with 316 Stainless Disc

Overview
Our manual wafer-style butterfly valve features a robust fusion-bonded epoxy (FBE) coated ductile iron body combined with a 316 stainless steel disc. Designed to fit between standard flanged connections without the need for background piping modifications, the wafer style offers versatility and simplifies installation. Select from either a lockable lever mechanism or a gear-box actuator to suit your operational needs.

Key Specifications

• Sizes available: 50 mm up to 600 mm (standard range)

• Seat options: EPDM (standard) or FKM (optional)

• Pressure rating: Vacuum up to 16 bar (varies by size)

• Working temperatures:

  • EPDM seat: ~ -10 °C to 90 °C (potable water max ~40 °C)

  • FKM seat: ~ -10 °C to 150 °C

• Design and testing meeting API 609 & API 598 standards

• Wafer construction to suit multiple flange standards — no bolt-holes through the body required

Construction & Materials

• Body: Ductile iron with FBE coating for enhanced durability and corrosion resistance

• Disc: CF8M (316 stainless steel)

• Seat: EPDM or FKM elastomer (user-selectable)

• Shaft: SS431

• Bushings: PTFE

• O-rings: NBR

• Fasteners: A2-70 stainless bolts & nuts
  This robust construction ensures long service life in industrial environments with provisions for maintenance and seat replacement when needed.

Typical Applications
Perfect for demanding industrial systems across mining, water treatment, bulk material handling, irrigation networks, fluid transport and high-flow water systems. Common uses include wash-down circuits, mine water distribution, wash-bay installations and general duty industrial pipelines.

Why Choose This Valve

• Wide size range plus choice of seat material gives flexibility across applications

• Wafer style simplifies flange fitting and minimises installation footprint

• Ductile iron body with epoxy coating offers excellent strength and corrosion resilience — ideal for harsh Australian conditions

• Disc and internals built from high-grade stainless and PTFE for durability and maintenance convenience

• Manual operation via lever or gearbox gives direct control, with lever lock-in for safe open/close positioning

• Full compliance to recognized industry standards for design and testing