SAYTAR-70 — Piston Pressure Reducing Valve
The BARIQ SAYTAR-70 is an automatic piston-operated pressure reducing valve designed to reduce and stabilize downstream pressure to a preset value in water distribution pipework. Its epoxy-coated ductile-iron body is suitable for indoor and outdoor systems, with large internal passages designed to limit flow resistance, vibration and pressure loss.
Technical Specifications
| Parameter | Specification |
|---|---|
| Size range | DN50–DN200 |
| Pressure class | PN16; PN25 and PN40 available on request |
| Standard adjustment range | 1.5–6 bar |
| Optional adjustment ranges | 2–8 bar / 4–12 bar |
| Working temperature | 0 to 40 °C |
| Compatible media | Water and compressed air |
| Flange connections | EN 1092-2 / ISO 7005-2 |
| Gauge connections | Optional Rp 1/4 in |
Material Specification
| Component | Material |
|---|---|
| Body and bonnet | Epoxy-coated ductile iron |
| Piston DN50–DN100 | Brass |
| Piston DN125–DN200 | Galvanized steel |
| Adjustment spring | Painted spring steel |
| Seat | Bronze |
| Other components | Steel and brass |
| Seat gasket, O-rings and lip seals | NBR rubber |
Dimensions
All dimensions in millimetres.
| DN | D | L | H | H1 max |
|---|---|---|---|---|
| 50 | 165 | 230 | 82 | 300 |
| 65 | 185 | 290 | 90 | 350 |
| 80 | 200 | 310 | 100 | 390 |
| 100 | 220 | 350 | 121 | 440 |
| 125 | 250 | 400 | 152 | 560 |
| 150 | 285 | 450 | 169 | 670 |
| 200 | 340 | 550 | 234 | 1050 |
D: flange outside diameter. L: face-to-face length. H: centreline to base. H1: maximum overall height.
Typical Applications
- Water distribution and irrigation
- Buildings and civil plants
- Cooling systems
See the product datasheet for pressure-loss and flow-capacity curves.
