ChemValve Fluoropolymer Lined Butterfly Valves – CST-K Series

The ChemValve Type CST-K fluoropolymer lined butterfly valves feature a composite plastic body. These valves are designed for zero leakage in the toughest of corrosive applications up to 130oC (265oF) at 150 psi. The high density TFM liner provides superior performance vs. conventional PTFE lined valves. The one-piece shaft/disc is over-moulded with PFA. The vinyl ester body reinforced with carbon and glass fibres is essentially indestructible and has outstanding external corrosion resistance.

VE-CF
  • Size:
    2" to 12"
  • Body Type :
    Wafer, Lug
  • Body:
    VE-CF Vinyl Ester Carbon Filled
  • Disc:
    PFA Covered 316 SS
  • Seat & Shaft Seal:
    TFM
Size

2" to 12"

Body Type

Wafer, Lug

Body

VE-CF Vinyl Ester Carbon Filled

Disc

PFA Covered 316 SS

Seat And Shaft Seal

TFM

Features & Benefits

  • Exceptional Internal and External Corrosion Resistance
  • Zero Leakage 150 psi up to 130oC (265oF)
  • Composite Body
    Carbon and glass reinforced vinyl ester material has excellent mechanical properties:
    High Tensile Strength: High pressure rating
    High Temperature Rating: 130 Degrees C (266 Degrees F)
    High Impact Strength: Durability and safety
  • Special TFM Seat and PFA Disc Covering
    The seat is TFM, a high density grade of PTFE. The one piece disc/shaft is 316 SS over-moulded with PFA. Both materials have mechanical properties superior to those of standard PTFE:
    Low Cold Flow: More durable and stable when under stress
    Low Permeability: The permeability of TFM is 50% less than standard PTFE. Lower permeability means longer valve life on highly corrosive chemicals.
    Smoother Surface: Higher abrasion resistance
  • Light Weight
    The CST-K valve is lighter than conventional ductile iron body PTFE lined butterfly valves. Installation and maintenance is much easier and stress on the piping system is lower.
  • Serviceable
    The “split” body can be disassembled and the seat (liner) or disc/shaft part replaced.

Commonly used in these markets

Environmental Markets

Environmental

Process Industrial Markets

Process Industrial

Chemical, Storage & Transport Markets

Chemical, Storage & Transport

High Purity Water Markets

High Purity Water

Valve Specification Guide

Valve Specification Guide

Engineering specifications are crucial as they provide precision, clarity, quality assurance and compliance in your projects. Download to save you time and assure accuracy in your specifications.

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Valve Specification Guide

Chemical Resistance Guide

Corrosion resistance is an important factor in selecting the right material of construction for valves, pipe, tubing, fittings and more. Designed to easily navigate, this guide can be downloaded for easy reference.

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Materials of Construction Cover Photo

Materials of Construction

Understanding materials of construction is essential to the accurate selection of valves, pipe, tubing, fittings and more. Designed to easily navigate, this guide can be downloaded for easy reference.

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