Singer A Type 2 One-way Flow Altitude Control Valve

Ideal for maintaining a preset maximum water level based on water level

There are many different variations available to fit your specific needs. Please Contact Us for a free quote or consultation.

106 / 206-A-Type 2 One-Way Flow Altitude Control Valve


  • No overflows - high level shut-off maintained to close tolerances
  • Superior repeatability
  • Positive shut-off - Fills based on measured water level
  • Ideal for maintaining a preset maximum water level
  • Easily serviceable at ground level
  • Functions as a two position control valve, either fully open or fully closed
  • Based on 106-PG and 206-PG main valves

Note: This valve does not operate as a check valve to prevent reverse flow.


  • The valve shall be a Singer Valve model 106-A-Type 2 / 206-A-Type 2, 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-0413C.
  • 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 refill the tank once the level drops a fixed distance below the high water 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 section, page 249, Model 301-4 Altitude Pilot for detailed information pertaining to materials and specifications.


Download the 106 / 206-A-Type 2 Product Guide.

Download the 106 / 206-A-Type 2 Operations Guide.

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