ONE-WAY FLOW ALTITUDE VALVE
01/06
960 Series
Operation
The AMES Model 960 / 660 One Way Flow Altitude Valve is designed to open, allowing ow into a reservoir
or elevated storage tank (tank ll), and close drip tight when high water level is achieved. The Altitude Pilot
remotely senses static tank head pressure (water level) through a eld installed sensing line, and directs
pressure into and out of the cover chamber of the 3-way Accelerator Pilot. When the cover of the Accelerator
Pilot is pressurized, the main valve cover chamber is vented downstream (dry drain) or to atmosphere (wet
drain), causing the valve to open fully. When the cover of the Accelerator Pilot is de-pressurized, the main
valve cover chamber is connected to upstream pressure, causing the valve to close drip tight.
As water level decreases, static tank head pressure falls below the adjustable setpoint of the Altitude Pilot,
causing it to pressurize the cover of the Accelerator Pilot, opening the valve. As water level increases, static
tank head exceeds the adjustable setpoint of the Altitude Pilot, causing it to depressurize the cover of the
Accelerator Pilot, closing the valve drip tight. Valve opening and closing speeds are separately adjustable.
The Position Indicator with Air Bleed Petcock allows for visual indication of valve position, and easy venting
of air entrapped in the main valve cover chamber.
Specify Tank height PRIOR to ordering.
Model
660
960
Installation Guidelines
• Prior to installation, ush line to remove debris.
• Install valve horizontally “in line” (cover facing UP), so ow arrow matches ow through the line. Avoid
installing valves 6” and larger vertically. Consult factory prior to ordering if installation is other than
described.
• Install inlet and outlet isolation valves. NOTE: When using buttery valves, insure disc does not contact
control valve. Damage or improper valve seating may occur.
• Provide adequate clearance for valve servicing and maintenance.
• Install pressure gauges to monitor valve inlet, outlet, and static head pressure.
• Provide adequate drain for cover chamber discharge if “wet drain” option is selected. Consult “Valve
Cover Capacity” chart on appropriate main valve Engineering Bulletin.
• Install static tank head sense line. For optimum control, sense line should be: 1) Installed with an
upward angle (towards reservoir) to avoid air accumulation, 2) Connected no further than forty-ve pipe
diameters from the reservoir, and 3) A minimum of 1/2” diameter.
Other AMES Altitude Control Valves
960-13 / 660-13 One Way Flow Altitude Valve with Delayed Opening Feature
960-15 / 660-15 One Way Flow Altitude Valve with Solenoid Override Feature
960-15-17 / 660-15-17 Two Way Flow Altitude Valve with Solenoid Override Feature
960-17 / 660-17 Two Way Flow Altitude Valve
962 / 662 One Way Flow Altitude Valve with Pressure Sustaining Feature
8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.amesrewater.com
Loading...