PN25 Brass Ball Valve

PN25 brass ball valve is a female-threaded ball valve manufactured to TS EN 13547 standard, rated for 25 bar nominal pressure. It finds wide application from water plumbing in residential and commercial buildings to heating, compressed air and industrial water lines; it is the most commonly preferred brass valve type in plumbing installations.
It offers a wide range of sizes from 1/4″ to 4″. Brass body and cap, chrome-plated brass ball and PTFE ball seats ensure long-lasting and leak-free operation. With a lever showing the open-closed position, it opens and closes fully with a quarter turn (90°); the valve exhibits low flow resistance when open.
Advantages
- Manufactured to TS EN 13547 standard
- Wide size range from 1/4″ to 4″
- Robust brass body suitable for 25 bar working pressure
- Chrome-plated brass ball for long service life
- PTFE ball seats for high leak-free performance
- O-ring seal at stem outlet
- Insulated bonnet option for cooling and heating lines
- Clear open-closed position, PVC-coated steel lever
Applications
- Cold and hot water plumbing in residential and commercial buildings
- Heating and hot water lines
- Compressed air and compressor lines
- Pump, booster set and tank connections
- Industrial water and process lines
- Irrigation systems
Technical Specifications
| Nominal pressure | PN25 (25 bar) |
|---|---|
| Operating temperature | -10 °C … +100 °C |
| Nominal sizes | 1/4″ – 4″ (DN8 – DN100) |
| Connection | Female-threaded (female), pipe thread |
| Actuation | Lever, 90° open-close |
| Fluid | Water, hot water, compressed air |
| Standard | TS EN 13547 |
Materials
| Body / Cap | Brass CW617N (CuZn40Pb2); nickel-plated per model |
|---|---|
| Ball | Chrome-plated brass |
| Stem | Brass |
| Ball seat | PTFE |
| Stem seal | O-ring |
| Lever | Steel, PVC-coated |
Dimension Table (mm)

| Nominal size (Rp) | DN | Port diameter ØD | Length L | Lever K | Thread length T | Height E |
|---|---|---|---|---|---|---|
| 1/2″ | 15 | 12 | 53 | 80 | 15 | 37 |
| 3/4″ | 20 | 17 | 61 | 95 | 16.5 | 53 |
| 1″ | 25 | 25 | 76 | 115 | 19.3 | 55 |
| 1 1/4″ | 32 | 30 | 86 | 115 | 21.5 | 59 |
| 1 1/2″ | 40 | 40 | 97 | 125 | 21.5 | 77 |
| 2″ | 50 | 44 | 113 | 145 | 26 | 90 |
| 2 1/2″ | 65 | 58 | 135 | 230 | 30.5 | 107 |
| 3″ | 80 | 70 | 156 | 250 | 33.5 | 120 |
| 4″ | 100 | 85 | 175 | 250 | 35 | 135 |
Dimensions in millimetres. 1/4″ and 3/8″ sizes are also available. Dimensions may vary by a few mm depending on manufacturer; for critical installations, confirm before ordering.
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