Product description:
American standard valve is used as a cut-off medium, the entire circulation straight through the full open, this time the pressure loss of medium operation minimum. API gate valve Steel flanged gate valve is usually suitable for not require frequent opening and closing, and keep the gate fully open or fully closed conditions, not suitable for use as regulation or throttling. For high-speed flow medium, American standard gate valve gate in the local open condition can cause gate vibration, and vibration may damage the gate and valve seat sealing surface, and throttling the gate will suffer media erosion. The main difference from the structural form is the form of the sealing element used.
Use and performance specifications
1.1 Uses:
a, This product is mainly used for gas, liquid medium for the hoist pipe, connect or cut off the media flow, does not apply to regulate the flow of media. With a small flow resistance, opening and closing more effort and so on.
b, the scope of application: chemical, petroleum, metallurgy, papermaking, pharmaceutical and other industries.
1.2 Performance Specifications:
| test pressure | Pressure Level | 150Lb | 300Lb | 600Lb | 900Lb | MPa | |
| Shell test | 3.0 | 7.5 | 16.5 | 22.5 | |||
| Gas seal test | 0.6 | 0.6 | 0.6 | 0.6 | |||
| Seal test | 2.2 | 5.5 | 12.1 | 16.5 | |||
| Seal test | 2.2 | 5.5 | 12.1 | 16.5 | |||
| Use range | |||||||
| Valve material | Applicable temperature (℃) | Suitable media | |||||
| WCB | -29 ° C to 425 ° C | Water, steam, oil and so on | |||||
| WC6 | -29 ° C to 540 ° C | Water, steam, oil and so on | |||||
| ZG1Cr5Mo | -29 ° C to 550 ° C | Water, steam, oil and so on | |||||
| CF8 | ≤200 ℃ | Nitric acids, weakly corrosive gases or liquid media | |||||
| CF3 | ≤200 ℃ | Acetic acid, weak corrosive gas or liquid medium | |||||
Valve main parts material:
|
Body Material Parts Material |
Body, bonnet, gate |
Valve stem |
filler |
| WCB | WCB | F6a | Flexible graphite |
| WC6 | WC6 | 38CrMoALA | Flexible graphite |
| ZG1Cr5Mo | ZG1Cr5Mo | 38CrMoALA | Flexible graphite |
| CF8 | CF8 | F304 | Flexible graphite |
| CF3 | CF3 | F316 | Flexible graphite |
Product appearance and structure size:
| 900 (PN150) Ring groove flange RTJ face self-sealing | 2 | 50 | 2 | 368 | 371 | 368 | 51 | 458 | 280 | - | - | 832 | 590 | DZW20A |
| 2 1/2 | 65 | 21/2 | 419 | 422 | 419 | 62 | 550 | 280 | - | - | 880 | 590 | DZW30A | |
| 3 | 80 | 3 | 381 | 384 | 381 | 74 | 610 | 300 | 660 | 310 | 910 | 590 | DZW30A | |
| 4 | 100 | 4 | 457 | 460 | 457 | 100 | 702 | 350 | 750 | 310 | 1020 | 590 | DZW45A | |
| 5 | 125 | 5 | 559 | 562 | 559 | 125 | 850 | 400 | 900 | 310 | - | - | DZW60A | |
| 6 | 150 | 6 | 610 | 613 | 610 | 150 | 980 | 500 | 1060 | 460 | 1060 | 830 | DZW90 | |
| 8 | 200 | 8 | 737 | 740 | 737 | 201 | 1100 | 650 | 1140 | 460 | 1150 | 830 | DZWl20 | |
| 10 | 250 | 10 | 838 | 841 | 838 | 252 | 1320 | 700 | 1370 | 460 | 1320 | 870 | DZWl80 | |
| 12 | 300 | 12 | 965 | 968 | 965 | 303 | 1500 | 900 | 1560 | 460 | 1580 | 870 | DZW250 | |
| 14 | 350 | 14 | 1029 | 1038 | 1029 | 322 | 1900 | 900 | 1950 | 600 | 1660 | 1170 | DZW350 | |
| 16 | 400 | 16 | 1130 | 1140 | 1130 | 373 | 2050 | 900 | 2100 | 600 | 1780 | 1170 |
DZW500
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