Singer Valve Inc.

- Model 106/206-A-Type 1 - Two-Way Flow Altitude Control Valve

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The 106-A-Type 1 and 206-A-Type 1 altitude control valves are based on the 106-PG or 206-PG main valve and are ideal for maintaining a preset maximum water level. The valve functions as a two position control valve, either fully open or fully closed. The Type 1 allows normal forward flow to fill the reservoir to the maximum level and then closes drip-tight at the set-point. It opens to allow reverse flow through the valve when the supply pressure drops a fixed amount below the reservoir head. When a higher supply pressure is restored, the Type 1 valve will then allow normal forward flow to refill the tank to the maximum level.

  • No overflows
  • Superior repeatability
  • Positive shut-off
  • Easily serviceable at ground level

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  1. Main Valve - 106-PG or 206-PG - with X107 position indicator
  2. Isolation Valve
  3. Strainer - 40 mesh stainless steel screen
  4. Model 10 Check Valve
  5. Closing Speed Control
  6. Model 12 Check Valve
  7. Model 301-4 Altitude Pilot
  8. Altitude Gauge
  9. Fixed Restriction - 1/8 in / 3.2 mm
  10. Union
  11. Isolation Valve
  12. Connection to Reservoir - complete in field
  13. Model 12 Check Valve
  14. Isolation Valve

Standard materials for pilot system components are:

  • Ductile Iron
  • Stainless Steel
  • Brass
  • Copper

106 / 206-A-Type 1 Two-Way Flow Altitude Control Valve

  • The valve shall be a Singer Valve model 106-A-Type 1 / 206-A-Type 1, size “_____”, ANSI Class 150 (ANSI 300, ANSI flanges drilled to ISO PN 10 / 16 / 25 or 40) pressure rating / flange standard, globe (angle), style valve. The Model 301-4 Altitude Pilot spring range (elevation) shall be “___ to ___” feet / meters, with set-point preset at Singer Valve to “___” feet / meters. Assembly shall be according to Schematic A-0412D.
  • The valve allows normal forward flow to fill the reservoir to the maximum level then closes drip-tight at the set-point. It opens to allow reverse flow through the valve to distribute to users when the supply pressure drops a fixed amount below the reservoir head. When a higher supply pressure is restored the Type 1 will then allow normal forward flow to refill the tank to the maximum level.
  • Refer to Main Valve section, page 11, 106-PG (or 206-PG) and Main Valve Options section, Model X107 Position Indicator for detailed information pertaining to valve sizes and materials, selection criteria and specifications.
  • Refer to Pilot and Accessories, page 249, section, Model 301-4 Altitude Pilot for detailed information pertaining to materials and specifications.

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