First, the lining of fluorine ball valve overview
Ball valve is a circular hole with a circular hole for the opening and closing parts, the ball with the valve stem around the center line of the valve to achieve the valve to open and close. Our ball valve series for the Q41, for the open two-piece structure.
1, the use of special molding process, so that the sealing surface is very dense, combined with the V-type PTFE filler combination to achieve zero leakage valve.
2, the ball and stem cast as a whole, put an end to the pressure caused by the valve stem out of the possibility of pressure within the package, the fundamental guarantee of the use of security.
3, using the whole plastic lining process, strong resistance to medium corrosion.
Second, laying fluorine ball valve design specifications
Follow the GB / T 12237, API 6D standard
Three, the lining of the ball valve drive mode
Manual lining fluorine ball valve, worm wheel rotating lining fluorine ball valve, pneumatic lining fluorine ball valve, electric lining fluorine ball valve
Fourth, the lining of the main parts of the ball valve material table
Serial number | Part Name | Grey cast iron | Cast steel | Stainless acid acid cast steel | Ultra low carbon stainless acid acid cast steel |
Z | C | P | R | PL | RL |
1 | Body / bonnet | HT250 | WCB | CF8 | CF8M | CF3 | CF3M |
2 | Sphere / stem | WCB | CF8 | CF8M | CF3 | CF3M |
3 | Lining / Seat | PCTEF (F3), FEP (F46), PFA (soluble F4), PP, PO |
4 | Packing gland | WCB | CF8 | CF8M | CF3 | CF3M |
5 | filler | PTFE (F4) | PTFE (F4) | PTFE (F4) |
6 | Stent | 35 | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
7 | bolt | 35 | Cr17Ni2 | 1Cr18Ni2 |
8 | Fasten nuts | 45 | 0Cr18Ni9 | 0Cr18Ni9 |
9 | Operating handle | WCB | WCB | WCB |
Fifth, lining the main shape of the ball valve and connection size
Nominal pass | L | D | D1 | D2 | f | b | Z-φd |
DN (mm) | NPS (inch) | PN1.0MPa |
15 | 1/2 | 130 | 95 | 65 | 45 | 2 | 14 | 4-φ14 |
20 | 3/4 | 140 | 105 | 75 | 55 | 2 | 16 | 4-φ14 |
25 | 1 | 150 | 115 | 85 | 65 | 2 | 16 | 4-φ14 |
32 | 5/4 | 165 | 135 | 100 | 78 | 2 | 18 | 4-φ18 |
40 | 3/2 | 180 | 145 | 110 | 85 | 3 | 18 | 4-φ18 |
50 | 2 | 200 | 160 | 125 | 100 | 3 | 20 | 4-φ18 |
65 | 5/2 | 220 | 180 | 145 | 120 | 3 | 20 | 4-φ18 |
80 | 3 | 250 | 195 | 160 | 135 | 3 | 22 | 4-φ18 |
100 | 4 | 280 | 215 | 180 | 155 | 3 | 22 | 8-φ18 |
125 | 5 | 320 | 245 | 210 | 185 | 3 | 24 | 8-φ18 |
150 | 6 | 360 | 280 | 240 | 210 | 3 | 24 | 8-φ23 |
200 | 8 | 457 | 335 | 295 | 265 | 3 | 26 | 8-φ23 |
250 | 10 | 533 | 390 | 350 | 320 | 3 | 28 | 12-φ23 |
PN1.6MPa |
15 | 1/2 | 130 | 95 | 65 | 45 | 2 | 14 | 4-φ14 |
20 | 3/4 | 130 | 105 | 75 | 55 | 2 | 16 | 4-φ14 |
25 | 1 | 140 | 115 | 85 | 65 | 2 | 16 | 4-φ14 |
32 | 5/4 | 165 | 135 | 100 | 78 | 2 | 18 | 4-φ18 |
40 | 3/2 | 165 | 145 | 110 | 85 | 3 | 18 | 4-φ18 |
50 | 2 | 203 | 160 | 125 | 100 | 3 | 20 | 4-φ18 |
65 | 5/2 | 222 | 180 | 145 | 120 | 3 | 20 | 4-φ18 |
80 | 3 | 241 | 195 | 160 | 135 | 3 | 22 | 8-φ18 |
100 | 4 | 305 | 215 | 180 | 155 | 3 | 24 | 8-φ18 |
125 | 5 | 356 | 245 | 210 | 185 | 3 | 26 | 8-φ18 |
150 | 6 | 394 | 280 | 240 | 210 | 3 | 28 | 8-φ23 |
200 | 8 | 457 | 335 | 295 | 265 | 3 | 30 | 12-φ23 |