REMKO RT 080, Руководство оператора, Страница: 12 / 40

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When the pump shuts down, the spring returns the diaphragm to its original position.
Any solids that may have accumulated in the diaphragm chamber settle to the bottom
and are flushed out during the next priming cycle.
NOTE: The valve will remain open if the pump does not reach its designed
capacity or head. Valve closing pressure is dependent upon the discharge head
of the pump at full capacity. The range of the valve closing pressure is
established by the tension rate of the spring as ordered from the factory. Valve
closing pressure can be further adjusted to the exact system requirements by
moving the spring retaining pin up or down the plunger rod to increase or
decrease tension on the spring. Contact your Remko distributor for information
about an Automatic Air Release Valve for your specific application.
Air Release Valve installation
The Automatic Air Release Valve must be independently mounted in a horizontal
position and connected to the discharge line of the self-priming centrifugal pump (see
Figure 5 below).
NOTE:
If the Air Release Valve is to be installed on a staged pump application,
contact the factory for specific installation instructions.
Some leakage 3.8 to 19 litres per minute will occur when the valve is
fully closed. Be sure the bypass line is directed back to the wet well
or tank to prevent hazardous spills.
WARNING!
Figure 5. Typical Automatic Air Release Valve Installation
SUCTION
LINE
WET WELL OR SUMP
BLEED LINE
25MM DIA. MIN.
(CUSTOMER
FURNISHED)
EXTEND
152MM
BELOW LIQUID
LEVEL SURFACE
90° LONG
RADIUS
ELBOW
°
INSTALL AI R RELEASE VALVE
IN HORIZONTAL POSITION
CLEAN-OUT
COVER
DISCHARGE PIPE
DISCHARGE PIPE
SUPPORT
BRACKET
SELF-PRINING
CENTRIFUGAL
PUMP
DRAIN LINE