Open-Type Ball Valve

Open-Type Ball Valve

Open-type ball valve main parts and materials

Type Accessory name Materials
Q21F-64C/P/R Internal thread
Q41F-64C/P/R Flange
Q11F-64C/P/R External thread
Q11F-64C/P/R Welding three-section type (butt welding, socket joint welding)
Body WCB、45 CF8、304 CF8M、316
Seat WCB、45 CF8、304 CF8M、316
Ball 1Cr18Ni9Ti 0Cr18Ni9Ti 0Cr17Ni12Mo2
Seat RPTFE Counterpoint polyphony
Stem 2Cr13 0Cr18Ni9Ti 0Cr17Ni12Mo2
Pressure disk PTFE Combined gasket
Stem stuffing V-shaped PTFE Graphite
Bolt 35 304
Hex nut 35 304
Spring washer Clamp nut 304
Spring washer 35 304
Medium carbon Clamp nut 304
Nut 35 304
Wrench 1Cr18Ni9Ti 304
Wrench cover Plastics
Lock instrument 1Cr18Ni9Ti 304
Applicable Operating Mode Applicable medium Water, vapor, and oil products, etc. Corrosion medium such as Nitric acid Corrosion medium such as Acetic acid.
Applicable temperature -28~350℃
Applicable Specification Pipe screw standard DIN259/2999 GB7307-87 NPT BSPT
Flanged standard JB79-59、 SH3406、GB9113、HG20592-97
Screw standard GB196

Open-type ball valve main types and connection dimensions

Nominal diameter G D D D2 L L1 H W
Q11F Q11F Q11F Q41F Q21F Q41F Q11F Q41F Q21F Q21F Q11F Q41F Q21F Q11F Q41F Q21F
6 1/4 30 8 8 60 85 15 56 56 110 110
10 3/8 31 10 10 60 85 16 58 58 110 110
15 1/2 32 10 10 10 18 60 92 85 18 58 60 58 110 110 110
20 3/4 38 13.5 13.5 13.5 20 67.3 106 90 18 62 65 62 110 110 110
25 1 45 18 18 18 24 73 109 100 20 62 70 68 110 110 110
32 1 1/4 53.4 22 22 22 32 90 126 120 20 75 85 75 150 145 150
40 1 1/2 63 26 26 26 38 97.5 136 135 25 83 90 83 150 145 150
50 2 71 32.8 32.8 32.8 46 112 154 140 25 90 98 90 150 177 180
65 2 1/2 92 46 46 60 140 170 95 110 180 190

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