Q341F Worm Gear Flanged Ball Valve
I. Introduction:
The turbine flange ball valve is an important type of valve, widely used in fields such as petrochemical industry and long-distance pipelines. The closing member of the ball valve is a perforated sphere (or partial sphere), which rotates along with the valve stem to realize the opening or closing of the valve. Among various types of valves, the ball valve has the smallest flow resistance. When the full-bore ball valve is open, the sphere passage, valve body passage and connecting pipe diameter are equal and form a straight diameter, so the medium can flow through almost without loss. The ball valve only needs to rotate 90° to fully open or close, with quick opening and closing. Compared with gate valves and globe valves of the same specifications, the ball valve has a smaller volume and lighter weight, making it convenient for pipeline installation. By adopting a new type of sealing material as the valve seat, the service life of the ball valve using polytetrafluoroethylene (PTFE) as the seal (compared with similar products) is increased by 3 to 5 times. It has the advantages of stable performance, reliable sealing, small friction, light opening and closing, high temperature resistance, wear resistance, oil resistance, corrosion resistance and long service life. The high-temperature ball valve has the same structural length as the globe valve, plunger valve and sewage discharge valve, expanding the application scope of the ball valve. It is widely used in industries such as petroleum, chemical industry, rubber, paper making and pharmaceutical, and can replace globe valves, plunger valves and quick sewage discharge valves. Applicable media: acids such as water, steam, heat transfer oil, etc. Operating temperature: ≤300℃
II. Material of Components:
Serial No. | Component Name | Material | |
GB | ASTM | ||
1 | Valve Body | WCB | A2116-WCB |
2 | Seal Ring | PTFE | PTFE |
3 | Sphere | 1Cr18Ni9Ti | SS304 |
4 | Nut | 35 | A194-2H |
5 | Stud Bolt | 35CrMoA | A193-B7 |
6 | Disc | WCB | A216-WCB |
7 | Gasket | Flexible Graphite + Stainless Steel | B12.10-304F/.G |
8 | Packing | PTFE | PTFE |
9 | Packing Gland | WCB | A2116-WCB |
10 | Positioning Plate | 25 | A105 |
11 | Retaining Ring | 65Mn | AISI 1066 |
12 | Handle | K33 | A47-667 |
13 | Valve Stem | 1Cr13 | A276-410 |
14 | Screw | 35 | A193-B7 |
15 | Thrust Washer | PTFE | PTFE |
III. Technical Specifications:
Design Basis | National Standard Series | American Standard Series | |
Design Standard | GB/T12237 | API 6D | ANSI B16.34 |
Structural Length of Flange Connection | GB/T12221 | API 6D | ANSI B16.10 |
Structural Length (Welded) | GB/T15188.1 | API 6D | ANSI B16.10 |
Connection Flange | GB/T9113 | ANSI B16.5, B16.47 | |
Butt Weld End | GB/T12224 | ANSI B16.25 | |
Test and Inspection | GB/T9092 | API 6D | API 598 |
IV. External Dimensions:
Nominal Diameter | 15 | 20 | 25 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
d1 | 13 | 19 | 25 | 38 | 64 | 64 | 76 | 102 | 127 | 152 | 203 |
L | 108 | 117 | 127 | 165 | 191 | 191 | 203 | 229 | 356 | 394 | 457 |
H | 59 | 63 | 75 | 95 | 142 | 142 | 152 | 178 | 252 | 272 | 342 |
W | 130 | 130 | 160 | 230 | 400 | 400 | 400 | 650 | 1050 | 1050 | 1410 |
Wt(kg) | 2.5 | 3 | 5 | 7 | 15 | 19 | 19 | 33 | 58 | 93 | 160 |
| Machinery & Equipment/Valves/Ball Valves | |
