Vanne papillon en fonte à revêtement caoutchouc

Exigences techniques :
  1. Conception et fabrication : GB/T 12238
  2. Écartement entre faces : GB/T 12221
  3. Brides d'extrémité : GB/T 17241.6
  4. Inspection et essais : GB/T 13927

Description

The Cast Iron Rubber Lined Butterfly Valve is a flanged centerline butterfly valve whose body is fully lined with elastomer. The disc rotates within the liner to provide tight, bidirectional shut-off, while the lining protects the iron body from corrosion and abrasion. It is a versatile, low-maintenance valve for water and mildly corrosive media.

Spécifications techniques :
  • Classe de pression : PN10 / PN16
  • Plage de diamètres : DN50 – DN1200
  • Fluide admissible : Water, sewage, seawater, weak acids and alkalis
  • Température de service : -10°C to 80°C
Main Parts and Materials:
Désignation des piècesMatériaux
CorpsFonte HT200 / fonte ductile QT450
ObturateurDuctile Iron (rubber-coated or nickel-plated)
RevêtementEPDM / NBR
ArbreAcier inoxydable 2Cr13
Organe de manœuvreWorm Gear / Lever
Principales caractéristiques :
  1. Full Lining: Elastomer liner covers the entire wetted body surface for corrosion resistance.
  2. Bubble-Tight: Zéro fuite dans les deux sens.
  3. Faible couple : Centerline design with self-lubricating bushings for easy operation.
  4. Light Weight: Much lighter than an equivalent gate valve.
  5. Options de motorisation : Handle, worm gear, electric or pneumatic.
Applications :

Idéal pour d'alimentation en eau, Wastewater Treatment, Desalination, et Chemical Dosing Lines. Specifically suited for corrosive or abrasive media where an unlined iron body would degrade.

Informations complémentaires

Norme

GB