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3KH/4KH Multi-way Ball Valve
Classification: Special ball valve
Max. Working Pressure: 315bar
Nominal Size:6～25mm
Working Temperature:-25℃～+180℃
Body Material: 304 or 316L Stainless steel、45# Carbon steel
Product details：
3KH/4KH Multi-way Ball Valve (DN6~25 mm)
Features
● One valve can realize switching among multiple ways and multiple types of functions.
● Max. working pressure: 40bar (PTFE), 250 bar (POM), 315 bar (PEEK)
● Pneumatic or electric actuator may be fitted.
● Fixed ball construction; any port can connect high pressure.
Application of Sealing Materials
| Material | Uses |
| POM (2) | Mainly used for non-corrosive oils, water and gases; temperature: -30℃~+100℃ |
| PTFE (4) | Excellent corrosion resistance; applicable to most media; temperature: -30℃~+120℃ |
| PEEK(6) | Relatively good corrosion resistance; wide temperature range: -50℃~+230℃ |
| FPM(5) | Relatively good corrosion resistance; wide temperature range: -50℃~+230℃ |
| EPDM(6) | Good chemical adaptability; intolerant of ammonia, alcohols and diethyl ether; applicable to most media; temperature: -25℃~+180℃ |
| NBR | Intended for ammonia, vapor, formaldehyde and ethylene glycol; mineral oil intolerant; temperature: -50℃~+130℃ |
Ordering Information
Parameters Table：
BSPP Female Threaded Ball Valves (G thread/ISO228-1) [mm]
| Stainless Steel Ball Valve Ordering Number 3KH or 4KH |
Carbon Steel Ball Valve Ordering Number 3KH or 4KH |
DN | Actual Hole ID LW |
Connection | L | L1 | B | d1 | M1 | C | M2 | H1 | H | |
| L/T | X | |||||||||||||
| 4KH-G1/4-06-4425 | 4KH-G1/4-06-1425 | 6 | 6 | 5 | G1/4 | 91 | 152 | 62 | 50 | M6 | 42 | M6 | 52 | 108 |
| 4KH-G3/8-10-4425 | 4KH-G3/8-10-1425 | 10 | 9 | 7.5 | G3/8 | 113 | 160 | 78 | 70 | M8 | 50 | M6 | 55 | 101 |
| 4KH-G1/2-13-4425 | 4KH-G1/2-13-1425 | 13 | 12.5 | 11.5 | G1/2 | 131 | 160 | 95 | 70 | M8 | 60 | M8 | 60 | 106 |
| 4KH-G3/4-20-4425 | 4KH-G3/4-20-1425 | 20 | 19 | 18 | G3/4 | 148 | 210 | 112 | 70 | M8 | 75 | M8 | 71 | 127 |
| 4KH-G1-25-4425 | 4KH-G1-25-1425 | 25 | 24 | 22 | G1 | 172 | 210 | 124 | 102 | M10 | 90 | M10 | 79 | 135 |
| 4KH-G11/4-25-4425 | 4KH-G11/4-25-1425 | 25 | 24 | 22 | G11/4 | 180 | 210 | 124 | 102 | M10 | 90 | M10 | 79 | 135 |
Types of Multi-way Ball Valve Passage Mechanisms
| Code | Type of Ball Valve | Operating Mode | Functional Diagram |
| 1 | 3/2-way ball valve, L-shaped hole | +0°-90° |  |
| 2 | 3/3-way ball valve, L-shaped hole &additional hole | 0°-45°-90°★ |  |
| 3 | 3/2-way ball valve, T-shaped hole | +0°-90° |  |
| 4 | 3/3-way ball valve, T-shaped hole &additional hole | 0°-45°-90°★ |  |
| 6 | 4/2-way ball valve, X-shaped hole | 0°-90° |  |
| 7 | 4/3-way ball valve, X-shaped hole &additional hole | 0°-45°-90°★ |  |
| 8 | 4/2-way ball valve, T-shaped hole | +0°-90° |  |
| 9 | 4/3-way ball valve, T-shaped hole | +0°-90°-180★° |  |
| 10 | 4/3-way ball valve, L-shaped hole &relief hole | 0°-45°-90°★ |  |
| 17 | 4/3-way ball valve, X-shaped hole and additional T-shaped hole | 0°-45°-90°★ |  |
| 19 | 3/2-way ball valve, T-shaped hole | +0°-90° |  |
| 20 | 3/3-way ball valve, T-shaped hole | +0°-90°-180°★ |  |
★Manually operated ball valves with three valve positions in the passage mechanism are fitted with an intermediate valve position locating mechanism , and such valves can only be fixed with bottom mounting holes.
Torque Curves
The working torque of ball valves depends on pressure and ball seat sealing material. In the diagram, the working medium is oil, the seal is POM and (supposing water*1.2, air*1.4 and granular powder*1.6) actuator torque = 1.2*Torque (where: 1.2 is the safety factor).
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