Structural advantages and characteristics
1、Meets the domestic and foreign advanced standard requirement,the seal is reliable,the performance is fine,handsome appearance.
2、The damper plate,the valve seat packing surface is too vertical (stellite)with the iron-base alloy built-up welding or the department the cobaltbase hard alloy built-up welding to become,wear-resisting,thermostable,anti-corrosive,the anti-abrasion performance is good,the service lifeis long.
3、Using wedge-type flexible gate structure,medium and large caliber set bearings,switches flexible,open and dose easily.
4、Stem quenched and the nitrogen treatment,with good corrosion resistance,scratch resistance and wear resistance.
5、Can be used with a variety of standard pipe flanges and flange sealing surface types to meet various project needs and user requirements.
6、Valve body materials,variety,packing,gasket can be based on actual working conditions or the user requests a reasonable option,can be appliedto all kinds of pressure,temperature and medium conditions.
Standards and norms
| Design and Manufacture | Structure Length | Pressure -temperature rating |
Connection flange | Test and Inspection |
| GB 12234 | GB 12221 | GB/T12224 | JB/T 79 GB9113 HG 20592～20635 |
JB/T 9092 GB 13927 |
Performance parameter
| Serial Number | Entry name | Entryname | |||||
| PN16 | PN25 | PN40 | PN64 | PN100 | PN160 | ||
| 1 | PN(MPa) | 1.6 | 2.5 | 4.0 | 6.4 | 10 | 16 |
| 2 | Shell strength test pressure(MPa) | 1.5 Times the nominal pressure at room temperature | |||||
| 3 | High-pressure sealing Test pressure(MPa) | 1.1Times the nominal pressure at room temperature | |||||
| 4 | Operating pressure at room temperature(MPa) | According to GB/T 12224 pressure temperature rating | |||||
Main components material
| Name | Material | ||||||||
| Body/Bonnet | CF8 | CF3 | CF8M | CF3M | WCB | LCB | WC6 | WC9 | C5 |
| Wedge | CF8 | CF3 | CF8M | CF3M | WCB | LCB | WC6 | WC9 | C5 |
| Stem | F304 | F304L | F316 | F316L | 2CR13 | F304 | F304 | F304 | F304 |
| Stem Nut | Aluminium Bronze | ||||||||
| Packing | PTFE | Graphite | |||||||
| Gasket | PTFE | Graphite | |||||||
| Gland | CF8 | CF3 | CF8M | CF3M | WCB | LCB | WC6 | WC9 | C5 |
| Bolt | Stainless Steel | 35CrMoA | |||||||
| Nut | Stainless Steel | 45、35CrMoA | |||||||
| Handwheel | Cast Steel | ||||||||
