Integrated high temperature ball valve
A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category.
Key words:
Classification:
Cast steel valve series
Description
A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category. The valve may be operated manually or with a hand wheel, handle or pedal, and may also be controlled to vary the pressure, temperature and flow rate of the fluid medium. The valve can perform continuous or repeated operations on these changes, such as safety valves installed in hot water systems or steam boilers. In more complex control systems, automatic control valves are used as required by external inputs (I. e., to adjust the changing set point of the flow through the pipeline). The automatic control valve does not need to be manually operated according to its input and setting, so that the valve can accurately control the various requirements of the fluid medium. Valves can also be divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual phase steel valves, plastic valves, non-standard customized valve materials, etc.
◆ Product use
The company's design of integrated high temperature ball valve is the use of new sealing material for the valve seat, with similar products do PTFE seal ball valve, service life increased by 3-5 times. It has the advantages of stable performance, reliable sealing, low friction, light switch, high temperature resistance, wear resistance, oil resistance, corrosion resistance, long service life, etc., high temperature ball valve and globe valve, plunger valve, drain valve, the structure length is consistent, expanding the scope of use of ball valve, widely used in petroleum, chemical, rubber, paper, pharmaceutical and other industries, can replace stop valve, plunger valve, fast drain valve. Applicable medium: water, steam, heat conduction oil and other acids, the use of temperature: ≤ 350 ℃.
◆ Product implementation standards
| Product Specification | Design Specification | Structure length | Connecting flange | TEST AND INSPECTION | Pressure-Temperature |
| GB/T12237 | GB/T12221 | GB/T9113 HG/T20592 |
JB/T9092 API598 |
GB/T12224 |
◆ Main performance parameters
| Model | (MPa) | Strength test pressure | Seal test pressure (MPa) |
Applicable temperature (℃) |
Applicable media |
| QJ41M-16C | 1.6 | 2.4 | 1.8 | -28~ 300(M/F) | Heat transfer oil, water, steam, gas, oil and Nitric acid, acetic acid corrosive medium |
| QJ41M-25C | 2.5 | 4.0 | 2.8 | -28~ 350(PPN) |
◆ Material of main parts
| Part Name | Valve body | Bonnet | Sphere | Stem | Coating | Sealing ring | Handle |
| Materials | WCB | WCB | Stainless Steel | 20Cr13 | Medium gray paint | Composite metal seal ring | cast iron |
◆ Main outline connection dimension
| Nominal pressure PN | Nominal diameter (DN) |
Standard value | Reference value | |||||||
| L | D | D₁ | D₂ | f | b | Z-Fd | L0 | H | ||
| PN1.6 MPa | 15 | 130 | 95 | 45 | 65 | 2 | 16 | 4-14 | 150 | 105 |
| 20 | 140/130 | 105 | 55 | 75 | 2 | 16 | 4-14 | 150 | 110 | |
| 25 | 150/140 | 115 | 65 | 85 | 2 | 16 | 4-14 | 160 | 120 | |
| 32 | 165 | 135 | 78 | 100 | 2 | 18 | 4-18 | 180 | 140 | |
| 40 | 180/165 | 145 | 85 | 110 | 3 | 18 | 4-18 | 250 | 155 | |
| 50 | 200/203 | 160 | 100 | 125 | 3 | 20 | 4-18 | 300 | 175 | |
| 65 | 222/220 | 180 | 120 | 145 | 3 | 20 | 4-18 | 300 | 195 | |
| 80 | 250/241 | 195 | 135 | 160 | 3 | 22 | 8-18 | 320 | 225 | |
| 100 | 280/305 | 215 | 155 | 180 | 3 | 24 | 8-18 | 320 | 250 | |
| 125 | 320/356 | 245 | 185 | 210 | 3 | 26 | 8-18 | 360 | 270 | |
| 150 | 360/394 | 280 | 210 | 240 | 3 | 28 | 8-23 | 360 | 290 | |
| 200 | 400/457 | 335 | 265 | 295 | 3 | 30 | 12-23 | 450 | 350 | |
| 250 | 533 | 405 | 320 | 355 | 3 | 32 | 12-25 | 450 | 405 | |
| PN2.5 MPa | 15 | 130 | 95 | 45 | 65 | 2 | 16 | 4-14 | 150 | 105 |
| 20 | 140/130 | 105 | 55 | 75 | 2 | 16 | 4-14 | 150 | 110 | |
| 25 | 150/140 | 115 | 65 | 85 | 2 | 16 | 4-14 | 160 | 120 | |
| 32 | 165 | 135 | 78 | 100 | 2 | 18 | 4-18 | 180 | 140 | |
| 40 | 180/165 | 145 | 85 | 110 | 3 | 20 | 4-18 | 250 | 155 | |
| 50 | 200/203 | 160 | 100 | 125 | 3 | 20 | 4-18 | 300 | 175 | |
| 65 | 222/220 | 180 | 120 | 145 | 3 | 22 | 8-18 | 300 | 195 | |
| 80 | 250/241 | 195 | 135 | 160 | 3 | 22 | 8-18 | 320 | 225 | |
| 100 | 280/305 | 230 | 160 | 190 | 3 | 24 | 8-23 | 320 | 250 | |
| 125 | 320/356 | 270 | 188 | 220 | 3 | 28 | 8-25 | 360 | 270 | |
| 150 | 360/394 | 300 | 218 | 250 | 3 | 30 | 8-25 | 360 | 290 | |
| 200 | 400/457 | 360 | 278 | 310 | 3 | 34 | 12-25 | 450 | 350 | |
| 250 | 533 | 425 | 332 | 370 | 3 | 36 | 12-30 | 450 | 405 | |
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