Posted Feb 23, 2021

FQ41F Flanged Discharge Ball Valves

FQ41F flanged discharge ball valve is mainly used for the bottom discharge, discharge, sampling and no dead zone shutdown operation of reaction kettle, storage tank and other containers. The discharging ball valve is a special structure discharging ball valve, which has the advantages of close distance between valve seat and end flange, less material retention, compact structure and excellent sealing performance. It can be used for reaction pots in fine chemical industry, pharmaceutical industry and chemical industry, and can also be used for conveying fine and soft granular media. Using PPL or M sealing material, it is more wear-resistant and temperature-resistant. Moreover, it is the most ideal product for toothpaste industry and vacuum paste making pots. The discharging ball valve is suitable for aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acids, strong acids and strong oxidants with various concentrations from-50℃ to 150℃. FEP is also suitable for pipelines with strong alkali organic solvents with various concentrations and other corrosive gases and liquid media. The left flange of the discharging ball valve is one gear larger than the right flange, D1 is connected with the reaction kettle; the numerator is the size of the right flange; the denominator is the size of the left flange JB78, and the reaction kettle is equipped with 50L-5000L.

Technical standards:
Designing and manufacturingGB/T 12237
Structure lengthHG/T 3704-2003, GB/T 12221, ASME B16.10
Flange sizeHG20592-97, ANSI B16.5
Testing pressureGB/T 13927-92, API 1598

Main parts and materials of FQ41F flanged discharge ball valves:
part nameMaterial name
FQ41F-PFQ41F-RFQ41F-PLFQ41F-RL
Body/bonnetCF8CF8MCF3CF3M
Ball/stemCF8CF8MCF3CF3M
Packing glandCF8CF8MCF3CF3M
fillingPTFE(F4)
bolt1Crl7Ni21Crl7Ni21Cr18Ni21Cr18Ni2
clamp nutOCrl8Ni9OCrl8Ni90Cr18Ni90Cr18Ni9

Main shape connection dimensions:
Nominal sizePN 0.6-1.6 (MPa) Main overall dimensions and connection dimensions (mm)
DNLDD1D2fbz-φdD0H
32140135/160100/13078/1153/318/204-φ14/4-φ18200130
40160145/185110/15085/1253/418/224-φ18/4-φ18230135
7950170160/205125/170100/1403/420/244-φ18/4-φ18250140
80200195/245160/200130/1754/522/264-φ18/8-φ18300205
6950170160/230125/190100/1403/420/244-φ18/8-φ14250140
80200195/245160/210130/1754/522/264-φ18/10-φ14300205
100280215/280180/240150/2104/524/288-φ18/8-φ23350230
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