Wafer Butterfly Valve

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Industrial Valves

Wafer Butterfly Valve

Model: BF-W16

Lightweight, economical butterfly valve with EPDM seat for HVAC and water duty.

  • Lightweight wafer body between flanges
  • Replaceable EPDM liner
  • Nickel-coated or stainless disc
  • Lever or worm-gear operation

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Nominal sizeDN40 – DN600
Pressure ratingPN10 / PN16
End connectionWafer
Face-to-faceEN 558-1 Series 20

Overview

The BF-W16 is the lightest solution for isolating and rough throttling in large lines. The wafer body sits between two flanges, and the ductile-iron disc with nickel coating lasts in chilled and hot water.

Technical specifications

General

Nominal size
DN40 – DN600
Pressure rating
PN10 / PN16
End connection
Wafer
Face-to-face
EN 558-1 Series 20

Materials & construction

Body material
GGG40 / GG25
Trim material
Disc: GGG40-Ni · AISI 316
Seat
EPDM · NBR · PTFE

Process conditions

Operating temperature
−10 … +120 °C (EPDM)
Medium
Water, air, mild media

Standards & approvals

Design standard
EN 593
Certifications
CE · WRAS (option)

Applications

HVAC and chiller systems
Hot and chilled water
Water supply and wastewater
Pump discharge lines

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