J44F46 manual fluorine lined angle globe valve

J44F46 manual fluorine lined angle globe valveProduct Introduction

J44F46 manual fluorine lined angle globe valveIt is a valve with a closing element (valve disc) driven by the valve stem and moving up and down along the central axis of the valve seat. It is mainly used to connect or cut off the medium in the pipeline, but cannot be used for throttling. It has the advantages of compact structure, flexible opening and closing, strong corrosion resistance, and short stroke (generally 1/4 of the nominal diameter).

J44F46 manual fluorine lined angle globe valveTechnical Specifications

Applicable Temperature：-50℃～150℃

Applicable MediumFEP is suitable for various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid, as well as various organic acids, strong acids, and strong oxidants. FEP is also suitable for various concentrations of strong alkaline organic solvents and other corrosive gases and liquid media

Nominal Diameter：DN15-DN350

Nominal PressurePN10-PN16 (some data shows 1.6-2.5MPa)

materialThe valve body/cover material includes cast steel (WCB), stainless steel (SS304, SS316, SS316L, etc.); Lining materials include PCTEF (F3), FEP (F46), PFA (soluble F4), etc

J44F46 manual fluorine lined angle globe valvestructural characteristics

structural formThe inlet and outlet form a 90 degree right angle, with the medium flowing in from the bottom and flowing out from the sides. It can be installed at the corners of the pipeline system

Opening and closing componentsPlug shaped valve disc, with a flat or conical sealing surface. The valve disc moves in a straight line, with a small working stroke and short opening and closing time

Valve disc and stemDesigned as an integrated structure, it can prevent internal components from rushing out of the valve body due to pressure fluctuations in the pipeline. The structure is compact and safe to use

sealing performanceThe sealing surface is not easily worn or scratched, with good sealing performance, long service life, and low friction between the sealing surfaces

J44F46 manual fluorine lined angle globe valveKey installation points

Pre-installation preparation

Model verificationConfirm that the valve model is J44F46, and verify whether the nominal diameter, pressure rating (such as 10/16C), and connection dimensions (such as flange standards JB/T78/JB/T79) match the pipeline design.

Visual inspectionCheck whether there are cracks or scratches on the valve body and fluorine lining, whether the valve stem can be raised and lowered flexibly, and whether the sealing surface is damaged.

Media compatibilityConfirm the suitable temperature (≤ 150 ℃) and medium type (such as strong acid, strong alkali, etc.) of the lining material (such as F46), and avoid contact with molten alkali metals and elemental fluorine.

Installation Process Specification

Installation directionThe angular structure can be directly installed at the corner of the pipeline, and the flow direction of the medium should conform to the arrow mark on the valve body to ensure that the lifting direction of the valve disc is consistent with the flow direction of the medium.

connection methodWhen using flange connections, tighten the bolts evenly to avoid deformation of the valve body caused by one-sided force; The flange sealing surface needs to be cleaned and can be paired with corrosion-resistant gaskets (such as PTFE material).

Environmental RequirementsThe installation environment should avoid severe vibrations, stay away from high temperature heat sources, and install protective covers outdoors.

Check after installation

Opening and closing testManually operate the valve stem and confirm that the fully open/fully closed position of the valve is clear and there is no jamming phenomenon; Check if there is any leakage in the sealing of the packing gland.

system debuggingSlowly open the valve and observe the pressure changes in the pipeline to ensure there are no abnormal leaks.

J44F46 manual fluorine lined angle globe valveMaintenance and upkeep

Daily operation precautions

Strictly prohibit throttling adjustmentThis valve is a cut-off type valve,Prohibited for flow regulationTo prevent high-speed media from eroding the sealing surface and causing leakage.