- Home
- Companies
- Singer, a Mueller Brand
- Products
- Singer Valve - Model 106/206-PR-S - ...
Singer Valve - Model 106/206-PR-S -Pressure Reducing Valve with Downstream Surge Protection
The 106-PR-S and 206-PR-S pressure reducing valves with downstream surge control are based on the 106-PG or 206-PG main valve. Pressure reducing pilot valve senses the downstream pressure through a connection at the valve outlet. Under flowing conditions, the pilot reacts to small changes in pressure to control the valve position by modulating the pressure above the diaphragm. The downstream pressure is maintained relatively steady at the pilot set-point. The surge pilot senses the downstream pressure. If the pressure rises above the pressure reducing pilot setting and reaches the surge pilot setting, the surge pilot opens in order to close the main valve rapidly.
- Excellent low flow stability
- Automatically reduces downstream surges during sudden demand reductions
- Easily and precisely set downstream pressure
1. Main Valve 106-PG or 206-PG
2. Isolation Valve - standard 4 in / 100 mm and larger
3. Strainer - standard 4 in / 100 mm and larger
4. Model 26 Flow Stabilizer (sizes 8 in / 200 mm 106, 10 in / 250 mm 206 and smaller)
5. Fixed Restriction
6. Isolation Valve - standard 4 in / 100 mm and larger
7. Model 160 pilot
• Specify for 5 to 50 psi / 0.35 to 3.5 bar,
10 to 80 psi / 0.70 to 5.5 bar,
20 to 200 psi / 1.38 to 13.8 bar,
100 to 300 psi / 6.9 to 20.7 bar.
8. Isolation Valve - standard all sizes
9. Model 81 RP Surge Pilot - standard spring 20 to 200 psi / 1.38 to 13.8 bar -specify for 5 to 50 psi / 0.35 to 3.5 bar, 10 to 80 psi / 0.7 to 5.5 bar, 100 to 300 psi / 6.9 to 20.7 bar.
Standard materials for pilot system components are:
- ASTM B62 bronze or ASTM B16 brass
- AISI 303/316 stainless steel trim
- Buna-N / EPDM diaphragm and seals