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D-050
"Shelef"
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Description
The "Shelef" D-50 Combination Air Valve
(Double Orifice) combines a Kinetic Air Valve and
an Automatic Air Release Valve S-050.The
combination air valve discharges air during the filling
or charging of the system and admits air to the system
during draining. It also discharges accumulated air
from the system, while operating under pressure.
Operation
Kinetic
Component - the valve must discharge air at high velocity
during filling of the system and admit air during
its drainage. The valve should be designed to
prevent premature closing and discharge air up to
0.8 bar (11 psi) differential pressure.Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 12 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
Pressure
0.2
- 16 bar (3 - 230 psi)
Testing Pressure - 25 Atm. (350 psi)
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D-050-C
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Operation
Kinetic Component - the valve must discharge air at
high velocity during filling of the system and admit
air during its drainage. The valve should be designed
to prevent premature closing and discharge air up to
0.8 bar (11 psi) differential pressure.
Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 12 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
Pressure
0.2 - 16 bar (3 - 230 psi)
Testing Pressure - 25 Atm. (350 psi)
• Reliable operation
reduces water hammer incidents.
• Dynamic design
allows high velocity air discharge, up to 0.8 bar differential
pressure; Preventing premature closing.
• Lightweight, small
dimensions, simple and reliable structure.
• The body is made
of high strength plastic, and all operating parts are
made of specially selected corrosion resistant materials.
• The drainage outlets
enables removal of excess fluids.
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D-040
"Barak"
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Operation
Kinetic Component - the valve must discharge air at
high velocity during filling of the system and admit
air during its drainage. The valve should be designed
to prevent premature closing and discharge air up to
0.8 bar (11 psi) differential pressure.
Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 12 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
Pressure
0.2 - 16 bar (3 - 230 psi)
Testing Pressure - 25 Atm. (350 psi)
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D-040-C
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Operation
Kinetic
Component - the valve must discharge air at high velocity
during filling of the system and admit air during its
drainage. The valve should be designed to prevent
premature closing and discharge air up to 0.8 bar (11
psi) differential pressure.
Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 12 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
Pressure
0.2 - 16 bar (3 - 230 psi)
Testing Pressure - 25 Atm. (350 psi)
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Operation
Kinetic Component - the valve must discharge air at
high velocity during filling of the system and admit
air during its drainage. The valve should be designed
to prevent premature closing and discharge air up to
0.8 bar (11 psi) differential pressure.
Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 12 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
Pressure
0.2 - 16 bar (3 - 230 psi)
Testing Pressure - 25 Atm. (350 psi)
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Operation
Kinetic Component - the valve must discharge air at
high velocity during filling of the system and admit
air during its drainage. The valve should be designed
to prevent premature closing and discharge air up to
0.8 bar (11 psi) differential pressure.
Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 9 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
Pressure
0.2 - 25 bar (3 - 350 psi)
Testing Pressure - 25 Atm. (350 psi)
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Operation
Kinetic Component - the valve must discharge air at
high velocity during filling of the system and admit
air during its drainage. The valve should be designed
to prevent premature closing and discharge air up to
0.8 bar (11 psi) differential pressure.
Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 15 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
Pressure
High pressure categories from 25 bar (350 psi) up to
100 bar (1400 psi)
Testing Pressure - 1.5 x maximum working pressure
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Operation
Kinetic
Component - the valve must discharge air at high velocity
during filling of the system and admit air during its
drainage. The valve should be designed to prevent
premature closing and discharge air up to 0.6 bar (8.5
psi) differential pressure.
Maximum discharge rate: 3" - up to 3,400 m3/h
Kinetic Orifice 4" nominal.
"No-Slam" orifice shut-off.
Automatic
Component - the valve will release accumulated air
from the system while operating under pressure.
Minimum orifice size of 36 sq. mm, enables the discharge
of air at high flow rates, and is not exposed to obstruction
by debris.
The valve releases air at up to 450 m3/h
NRS
Valve (Non Raise Stem) - fixed height of shut-off
valve stem. When the shut-off valve is closed,
the internal mechanism can be removed, completely
and easily, upward, as a separate assembly, allowing
easy maintenance from without the chamber.
Pressure
0.2 - 16 bar (3 - 230 psi)
Testing Pressure - 25 Atm. (350 psi)
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