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VODEX H41F46 Lift Fluorine-Lined Check Valve Main Image

Lift Fluorine-Lined Check Valve | DN15-DN2500, PN6-PN16 | Full FEP Lined

Full FEP/PTFE lined Lift Fluorine-Lined Check Valve engineered for secure backflow prevention from -50°C to 150°C. Featuring a wide nominal diameter from DN15 to DN2500 and a carbon steel disc fully encapsulated with fluorine plastic. 100% spark tested to ensure reliable zero-leakage control in aqua regia, sulfuric acid, and hydrochloric acid pipelines.

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Technical Specifications

Model

VD-CV-H41F46
Nominal Diameter

DN15 mm–DN2500 mm
Nominal Pressure

PN0.6 MPa–PN1.6 MPa
Applicable Temperature

≤80°C, ≤100°C, ≤120°C, ≤150°C
Disc Material

Carbon steel fully encapsulated/lined with fluorine plastic
Lining Inspection

Spark testing / Holiday detection
Testing Standard

GB/T 13927-2008

Discription

Product Overview

 

The Lift Fluorine-Lined Check Valve (H41F46), also known as a non-return valve, features an internal flow channel and sealing surfaces that are fully lined with premium fluoroplastics. This advanced lining guarantees high structural strength and exceptional corrosion resistance.

Engineered to operate reliably in a temperature range from -50°C to 150°C, it is highly suitable for pipelines handling various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid, as well as various organic acids, strong acids, and strong oxidizers. Furthermore, the FEP (F46) lining delivers superior chemical compatibility with strong bases, organic solvents, and other highly corrosive gaseous or liquid media, successfully preventing backflow to protect upstream equipment.

Working Principle

 

During operation, the medium flows through the Lift Fluorine-Lined Check Valve in the direction indicated by the arrow marked on the valve body.

  • Forward Flow (Opening): When the medium flows in the specified direction, the fluid pressure acts against the underside of the disc, lifting it off the seat to open the valve and allow smooth passage.

  • Reverse Flow (Closing): If backflow or medium counter-flow occurs, the combined forces of the disc’s own weight and the reverse fluid pressure push the disc back down onto the valve seat. The sealing faces seat tightly together, instantly closing the fluid channel to block medium backflow.

Main parts materials chart for VODEX H41F46 check valve with WCB CF8 CF8M and FEP F46 lining Internal structure drawing of VODEX H41F46 lift check valve showing encapsulated disc

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