Watts F1127-2 Instrukcja Użytkownika Pobierz pdf

8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.wattsacv.com

01/05

Classic Series

TWO-WAY FLOW ALTITUDE VALVE

F127-2 (Globe)

F1127-2 (Angle)

Operation

The Watts ACV Two Way Flow Altitude Valve is designed to open, allowing ﬂow into a reservoir or elevated

storage tank (tank ﬁll), and close drip tight when high water level is achieved. The valve also opens, allowing

return ﬂow (tank discharge), when upstream pressure falls below reservoir head pressure. The Altitude Pilot

remotely senses static tank head pressure (water level) through a ﬁeld 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 allow for visual indication of valve position and easy venting of

air entrapped in the main valve cover chamber.

When upstream pressure falls below reservoir head pressure, a Check Valve installed in the pilot control

system “Return Flow Line” opens, connecting the main valve cover chamber to the upstream pressure

zone, causing the valve to open allowing reservoir pressure to return into the upstream pressure zone (Tank

Discharge).

Specify Tank height PRIOR to ordering.

1 2

8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.wattsacv.com01/05RClassic SeriesTWO-WAY FLOW ALT

8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.wattsacv.com01/05RClassic SeriesTWO-WAY FLOW ALT

Powiązane modele: F127-2

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