Details Explanation
ZSHO/ZDRO series "O" shaped cutting ballvalveSmall caliber adopts a two-piece ball valve structure, while large caliber adopts a three piece ball valve structure. The valve body consists of two parts, the main and the auxiliary. The ball core adopts a full bore, with a high rated flow coefficient and low flow resistance. The surface of the ball core is hardened using a special process to make it smooth and wear-resistant. The valve seat sealing material is carbon fiber reinforced polytetrafluoroethylene, which has low valve seat wear, excellent sealing, long service life, and strong cutting performance. The actuator adopts high-performance dual piston gear tooth strip structure or fork type structure, with high transmission efficiency, compact structure or electronic electric actuator. The nominal diameter range of this series of products is DN15~500mm (1/2 "~20"), and the nominal pressure rating is PN1.6~10.0MPa (150lb~600lb).
FEATURES
- Valve seat limit structure (torque stability): The valve seat sealing ring is properly pre tightened and limited, greatly reducing the operating torque; The bottom of the valve seat is equipped with a spring to maintain stable torque;
- Valve stem anti flying design (safe and reliable): The bottom mounted valve stem prevents the valve stem from flying out due to high medium pressure, completely eliminating safety hazards;
- Unique fire-resistant design (able to maintain sealing after fire): The soft sealed valve seat adopts a combination valve seat with a stainless steel seat wrapped in a polytetrafluoroethylene sealing ring with a sealing surface, and there is a small gap between the stainless steel seat sealing surface and the sphere. When the PTFE sealing ring is destroyed by fire, the floating sphere is pressed against the stainless steel seat under the pressure of the medium, and at the same time, the stainless steel seat is pushed against the core by the spring at the bottom of the valve seat, forming a seal between the sealing surface of the sphere and the stainless steel seat;
- Anti static device (can lead out static electricity): a simple and easy to install anti-static device that keeps the ball, valve stem, and valve body connected as a whole, and the static electricity generated by the friction of the sealing surface caused by the switch is led out;
- Standard actuator: Pneumatic and electric are interchangeable.
Structural diagram
Figure 1 Structural diagram of floating ball valve (DN15~150)
| Serial Number | Part name | Common materials |
| 1 | actuator | Actuators (pneumatic, electric) |
| 2 | Handwheel | (optional or optional) |
| 3 | Bracket | WCB |
| 4 | Packing gland | WCB、CF8 |
| 5 | Packing material | PTFE、 Flexible graphite |
| 6 | Auxiliary valve body | WCB、CF8、CF8M |
| 7 | Valve stem | 2Cr13, 17-4PH |
| 8 | Ball core | 304, 316, 316L |
| 9 | Valve seat | PTFE、PPL |
| 10 | Stud | 35, 304 |
| 11 | Main valve body | WCB、CF8、CF8M |
Figure 2 Structural diagram of fixed ball valve (DN200 and above)
| Serial Number | Part name | Common materials |
| 1 | actuator | Actuators (pneumatic, electric) |
| 2 | Bracket | WCB |
| 3 | Packing gland | WCB、CF8 |
| 4 | Packing material | PTFE、 Flexible graphite |
| 5 | Valve stem | 2Cr13, 17-4PH |
| 6 | Auxiliary valve body | WCB、CF8、CF8M |
| 7 | Valve seat | 304+PTFE, 316+PPL |
| 8 | Ball core | 304, 316, 316L |
| 9 | Guide Sleeve | 304 nitriding, 316 nitriding |
| 10 | Main valve body | WCB、CF8、CF8M |
| 11 | Bottom plug shaft | WCB、CF8、CF8M |
Specifications and technical parameters
| Nominal diameter DN (mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
| Rated flow coefficient Kv | 20 | 38 | 72 | 110 | 170 | 270 | 380 | 510 | 940 |
| Nominal diameter DN (mm) | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| Rated flow coefficient Kv | 1400 | 2200 | 3500 | 5000 | 8500 | 11000 | 13500 | 17000 | 20500 |
| Nominal pressure PN | 1.6~10.0MPa, 150lb~600lb | ||||||||
| Inherent flow characteristics | Quick open | ||||||||
| Rated angle (°) | 0±4°～90±4° | ||||||||
| Allowable leakage level | Grade VI, no leakage | ||||||||
| Gas source pressure Ps (MPa) | 0.4～0.6 | ||||||||
| supply voltage | 220V. AC 50Hz or 380V AC 50Hz | ||||||||
| Flange connection form |
PN1.6MPa according to HG/T20592-2009 RF, valve body protrusion PN ≥ 4.0MPa according to HG/T20592-2009 FM, concave surface of valve body |
||||||||
Note: 1. Special requirements can be produced according to customer specifications;
2. Flanges can be manufactured according to flange standards such as ANSI and JIS;
3. The flange distance can be produced according to customer specifications.
actuator
| Type | Pneumatic piston type | Electric type | |
| model | SR | DA | See selection samples from various manufacturers |
| Type | Single acting type | Double acting type | |
| Purpose: | cut off | cut off | |
| Interface | G1/8”、 G1/4”、 G1/2” | See selection samples from various manufacturers | |
| Rated turning angle | 90° | ||
| air-to-close | Air pressure increase valve closed | ||
| reaction | Open the pressure increasing valve | ||
| ambient temperature | -40~80℃ | ||
| Coating | Silver in the middle+red on both sides | ||
| enclosure | Pressure reducers, solenoid valves, limit switches, handwheels, pneumatic valves, etc | ||
Torque meter (N.m)
| Nominal diameter DN (mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | |
|
torque N.m |
PN16 | 6 | 9 | 14 | 20 | 30 | 40 | 60 | 85 | 130 |
| PN40 | 10 | 12 | 18 | 30 | 40 | 60 | 100 | 200 | 300 | |
| PN64 | 15 | 20 | 30 | 45 | 60 | 90 | 150 | 260 | 400 | |
| Nominal diameter DN (mm) | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | |
|
torque N.m |
PN16 | 220 | 400 | 700 | 1000 | 1300 | 1800 | 2200 | 2800 | 4000 |
| PN40 | 550 | 900 | 1000 | 1300 | 2200 | 2800 | 4000 | 5200 | 6500 | |
| PN64 | 600 | 900 | 1400 | 2000 | 3000 | 4000 | 6000 | 8000 | 11000 | |
Note: The torque gauge is for reference only, and the torque can be increased or decreased depending on the actual medium and pressure.
Main performance indicators
| Serial Number | project | Pneumatic ball valve | Ball Valve |
| 1 | Basic error<(%) | ±2.5 | ±2.5 |
| 2 | Rated angle deviation ＜ (%) | +2.5 | +0.5 |
| 3 | Deviation of rated flow coefficient ＜ (%) | +10 | |
Note: The performance indicators of this product comply with GB/T4213-2008.
The use temperature and pressure range of valve body and valve cover materials, unit: kgf/cm2
|
pressure temperature |
PN16 | PN40 | PN64 | |||
| WCB | CF8 | WCB | CF8 | WCB | CF8 | |
| -196～-20 | — | 16.0 | — | 40.0 | — | 64.0 |
| -20～100 | 16.0 | 16.0 | 40.0 | 40.0 | 64.0 | 64.0 |
| 150 | 16.0 | 16.0 | 40.0 | 40.0 | 64.0 | 64.0 |
| 200 | 16.0 | 16.0 | 40.0 | 40.0 | 64.0 | 64.0 |
| 250 | 14.0 | 15.0 | 36.0 | 38.0 | 56.0 | 60.0 |
| 300 | 12.5 | 14.0 | 32.0 | 36.0 | 50.0 | 56.0 |
| 350 | 11.0 | 13.2 | 28.0 | 34.0 | 45.0 | 53.0 |
| 400 | 10.0 | 12.5 | 25.0 | 32.0 | 40.0 | 50.0 |
| 425 | 9.0 | 12.0 | 22.0 | 30.7 | 36.0 | 48.4 |
| 450 | 6.7 | 11.5 | 17.0 | 29.5 | 26.5 | 46.8 |
| 500 | — | 10.5 | — | 26.5 | — | 42.5 |
| 525 | — | 9.9 | — | 24.6 | — | 39.2 |
| 560 | — | 9.0 | — | 22.0 | — | 36.0 |
Operating temperature range and valve seat leakage of the whole machine
| Valve body | WCB | CF8 | CF8M |
| Ball core | 304 | 304 | 316 |
| sealing ring | PTFE、 Enhanced PTFE PPL | ||
| Packing material | Polytetrafluoroethylene, flexible graphite | ||
| shim | Graphite winding pad | ||
| Leakage level | Grade VI | ||
| Valve seat leakage rate (l/h) | Microbubble level① | Microbubble level① | Microbubble level① |
| Temperature range (℃) | -20～250 | -40～250 | -40～250 |
Note: 1) The number of bubbles is detailed in GB/T4213-2008.
Allowable pressure difference
Equipped with pneumatic piston actuator (single acting), allowable differential pressure gauge unit: MPa
|
execute institution |
88 | 100 | 125 | 145 | 160 | 190 | 210 | 240 | 270 | 300 | 350 | 400 |
AW 28S |
AW 35S |
| 15 | 4.0 | 6.4 | 10.0 | |||||||||||
| 20 | 4.0 | 5.2 | 10.0 | |||||||||||
| 25 | 2.5 | 6.4 | 10.0 | |||||||||||
| 32 | 4.0 | 8.0 | ||||||||||||
| 40 | 2.5 | 6.0 | 10.0 | |||||||||||
| 50 | 1.3 | 4.0 | 8.2 | |||||||||||
| 65 | 1.7 | 4.0 | 8.1 | |||||||||||
| 80 | 1.1 | 3.2 | 6.4 | |||||||||||
| 100 | 1.4 | 4.0 | 6.4 | |||||||||||
| 125 | 1.7 | 2.9 | 6.4 | |||||||||||
| 150 | 1.3 | 3.3 | 6.4 | |||||||||||
| 200 | 1.2 | 2.3 | 4.0 | |||||||||||
| 250 | 1.2 | 2.0 | 3.2 | |||||||||||
| 300 | 0.9 | 1.4 | 3.4 | |||||||||||
| 350 | 0.8 | 1.8 | 2.5 | |||||||||||
| 400 | 0.8 | 1.6 | ||||||||||||
| 450 | 0.5 | 1.3 | ||||||||||||
| 500 | 0.6 |
Note: 1) The gas source pressure is calculated at 0.5MPa;
2) The allowable pressure difference in the table is the standard configuration value of our company, and a larger torque actuator can be selected according to the user's operating conditions.
Equipped with pneumatic piston actuator (double acting), allowable differential pressure gauge unit: MPa
|
execute institution |
63 | 88 | 100 | 125 | 145 | 160 | 190 | 210 | 240 | 270 | 300 | 350 | 400 |
AW 35 |
| 15 | 6.4 | 10.0 | ||||||||||||
| 20 | 6.4 | 10.0 | ||||||||||||
| 25 | 4.0 | 6.4 | 10.0 | |||||||||||
| 32 | 4.0 | 10.0 | ||||||||||||
| 40 | 4.0 | 6.4 | 10.0 | |||||||||||
| 50 | 2.5 | 5.6 | 10.0 | |||||||||||
| 65 | 2.5 | 6.4 | 10.0 | |||||||||||
| 80 | 4.0 | 6.4 | 10.0 | |||||||||||
| 100 | 4.0 | 6.4 | 10.0 | |||||||||||
| 125 | 2.5 | 6.4 | 10.0 | |||||||||||
| 150 | 2.5 | 6.4 | 10.0 | |||||||||||
| 200 | 3.2 | 6.4 | 10.0 | |||||||||||
| 250 | 2.8 | 6.4 | ||||||||||||
| 300 | 1.6 | 4.0 | 6.4 | |||||||||||
| 350 | 1.2 | 4.0 | ||||||||||||
| 400 | 2.1 | 4.0 | ||||||||||||
| 450 | 1.6 | 4.0 | ||||||||||||
| 500 | 0.6 | 2.1 | 4.0 |
Note: 1) The gas source pressure is calculated at 0.5MPa;
2) The allowable pressure difference in the table is the standard configuration value of our company, and a larger torque actuator can be selected according to the user's operating conditions.