TYPICAL APPLICATION
Computerized Irrigation System; Remote Elevated Systems; Turf Irrigation or Buried Pipeline Irrigation; Greenhouse Irrigation; Low Supplied Pressure Irrigation System; Energy Saving Irrigation Systems.
DIMENSION
PRESSURE REDUCING VALVES
MANUAL PRESSURE REDUCING VALVES
ARKA Pressure Reducing Valve is hydraulically operated, diaphragm
actuated control valve that reduces higher upstream pressure
to lower constant downstream pressure and opens fully upon
line pressure drop.
FEATURE & ADVANTAGE
-
Line Pressure Driven, Hydraulically Controlled
-
Protects downstream systems​
-
Opens fully upon line pressure drop
-
Amplifies and relays weak remote command
-
-
Engineered Plastic Valve with Industrial Grade Design
-
Highly durable, chemical and cavitation resistant​
-
No internal bolts and nuts
-
-
Simple In-Line Inspection and Service
-
High Flow "Y" Valve Body with "Look Through" Design
-
Ultra-high flow capacity, low pressure loss
-
-
Unitized Flexible Supper Travel (FST) Diaphragm and Guided Plug
-
Accurate and stable regulation with smooth closing
-
Requires low opening and actuation pressure
-
Prevents diaphragm erosion and distortion
-
HOW IT WORKS
When upstream pressure drops, the pilot blocks the supply pressure port and opens the drain port, venting the control chamber to the atmosphere. This fully opens the valve, minimizing head loss.
Fully open position
The pilot switches upon pressurize, blocking the drain port and opening the supply pressure port. This pressurizes the control chamber, forcing the valve to modulate closed.
Modulating to close
When sensed pressure is equal to setting, the pilot blocks both the drain and the supply pressure ports. This locks the pressure in the control chamber, freezing the valve opening in its last position until conditions change.
Locked position
PRESSURE REDUCING VALVES
PRESSURE REDUCING VALVE WITH SOLENOID CONTROL
ARKA Pressure Reducing Valve with Solenoid Control is hydraulically operated,
diaphragm actuated control valve that reduces higher upstream pressure
to lower constant downstream pressure and opens fully upon line
pressure drop. This model valve either opens of shuts in response
to an electric signal.
FEATURE & ADVANTAGE
-
Hydraulic Pressure Control with Solenoid Control Line Pressure Driven
-
Protects downstream systems​
-
Opens Fully upon line pressure drop
-
Electrically controlled On/Off
-
-
Engineered Plastic Valve with Industrial Grade Design
-
Highly durable, chemical and cavitation resistant​
-
No internal bolts and nuts
-
-
High Flow "Y" Valve Body with "Look Through" Design
-
Ultra-high flow capacity, low pressure loss
-
-
Unitized Flexible Supper Travel (FST) Diaphragm and Guided Plug
-
Accurate and stable regulation with smooth closing
-
Requires low opening and actuation pressure
-
Prevents diaphragm erosion and distortion
-
-
Simple In-Line Inspection and Service
TYPICAL APPLICATION
Computerized Irrigation System; Pressure Reducing Stations; Systems Subject to Varying Supply Pressure; Energy Saving Irrigation Systems; Remote and/ or Elevated Plots.
HOW IT WORKS
The Shuttle Valve [ 1 ] connects the Solenoid Valve
[ 2 ] of the pressure Reducing Pilot [ 3 ] to the Control
Chamber [ 4 ]. When the Solenoid Valve is closed,
the Pressure Reducing Pilot commands the Valve
throttle closed should Downstream Pressure [ P2 ]
rise above setting and modulate to open when it drops
below setting. The solenoid valve is switched by electric
signal control, the pipe pressure is guided into the
control chamber through the shuttle valve, and the
pressure in the control chamber increases, prompting the
valve to close. Th Solenoid Valve enables manual closing.
MODEL & SPECIFICATION
DIMENSION
TYPICAL APPLICATION
Line Fill-Up Control Solutions; Line Emptying Prevention; Systems Subject to Varying Supply Pressure; Infield Filters Backwash Pressure Sustaining; Energy Saving Irrigation Systems.
DIMENSION
PRESSURE SUSTAINING VALVES
MANUAL PRESSURE SUSTAINING VALVES
ARKA Sustaining Valve is hydraulically operated, diaphragm
actuated control valve that sustains minimum preset upstream (back)
pressure and opens fully when line pressure is in excess of setting.
FEATURE & ADVANTAGE
-
Line Pressure Driven, Hydraulically Controlled
-
Prioritizes pressure zones
-
Control system fill-up
-
Opens fully upon line pressure rise
-
-
Engineered Plastic Valve with Industrial Grade Design
-
Highly durable, chemical and cavitation resistant​
-
No internal bolts and nuts
-
-
Simple In-Line Inspection and Service
-
High Flow "Y" Valve Body with "Look Through" Design
-
Ultra-high flow capacity, low pressure loss
-
-
Unitized Flexible Supper Travel (FST) Diaphragm and Guided Plug
-
Accurate and stable regulation with smooth closing
-
Requires low opening and actuation pressure
-
Prevents diaphragm erosion and distortion
-
HOW IT WORKS
The pressure sustaining pilot valve [ 1 ] causes the main valve to be slowly closed when the upstream pressure [ P1 ] is lower than the minimum preset pressure, and fully opens when [ P1 ] is in excess of setting. Local manual shut-off of the valve can be performed with the manual selection device [ 2 ].
MODEL & SPECIFICATION
PRESSURE REDUCING VALVES
PRESSURE SUSTAINING VALVE WITH SOLENOID CONTROL
ARKA sustaining valve is hydraulically operated, diaphragm actuated
control valve that sustains minimum preset upstream (back)
pressure and opens fully when line pressure is in excess of setting.
It either opens or shuts in response to an electric signal.
FEATURE & ADVANTAGE
-
Line Pressure Driven, Electrically Controlled On/Off
-
Prioritizes pressure zones & control system fill-up
-
Sustains upstream line pressure
-
Opens fully upon line pressure rise
-
-
Engineered Plastic Valve with Industrial Grade Design
-
Highly durable, chemical and cavitation resistant​
-
No internal bolts and nuts
-
-
High Flow "Y" Valve Body with "Look Through" Design
-
Ultra-high flow capacity, low pressure loss
-
-
Unitized Flexible Supper Travel (FST) Diaphragm and Guided Plug
-
Accurate and stable regulation with smooth closing
-
Requires low opening and actuation pressure
-
Prevents diaphragm erosion and distortion
-
-
Simple In-Line Inspection and Service
TYPICAL APPLICATION
Computerized Irrigation System; Line Fill-Up Control Solutions; Line Emptying Prevention; Remote and/or elevated plots; Infield Filters Backwash Pressure Sustaining; Energy Saving Irrigation Systems.
HOW IT WORKS
The Shuttle Valve [ 1 ] connects the Solenoid Valve
[ 2 ] or the pressure Sustaining Pilot Valve [ 3 ] to the
Control Chamber [ 4 ]. When the Solenoid Valve is closed,
the Pressure Sustaining Pilot Valve causes the valve to
be slowly closed when the upstream [ P1 ] is lower than
the setting, and fully opens when [ P1 ] rises above the setting. The solenoid valve is switched under the control of the electric signal, and the pipeline pressure is guided into the control chamber through the shuttle valve, and the pressure in the control chamber is increased to cause the valve to close. The solenoid valve also enables local manual
shut-off of the valve.
MODEL & SPECIFICATION
DIMENSION
TYPICAL APPLICATION
Line Fill-Up Control Solutions; Line Emptying Prevention; Pressure Reducing Systems; Infield Filters Backwash Pressure Sustaining; Energy Saving Irrigation Systems.
DIMENSION
PRESSURE REDUCING AND
SUSTAINING VALVES
MANUAL PRESSURE REDUCING
AND SUSTAINING VALVE
ARKA valve is hydraulically operated, diaphragm actuated control
valve that sustains minimum preset upstream (back) pressure
and reduces downstream pressure to a constant preset maximum.
FEATURE & ADVANTAGE
-
Line Pressure Driven, Hydraulically Controlled
-
Protects downstream systems
-
prioritizes pressure zones
-
Control system fill-up
-
-
Engineered Plastic Valve with Industrial Grade Design
-
Highly durable, chemical and cavitation resistant​
-
No internal bolts and nuts
-
-
Simple In-Line Inspection and Service
-
High Flow "Y" Valve Body with "Look Through" Design
-
Ultra-high flow capacity, low pressure loss
-
-
Unitized Flexible Supper Travel (FST) Diaphragm and Guided Plug
-
Accurate and stable regulation with smooth closing
-
Requires low opening and actuation pressure
-
Prevents diaphragm erosion and distortion
-
HOW IT WORKS
The pressure reducing pilot valve [ 1 ] is connected to the valve control chamber [ 2 ] via the pressure sustaining pilot valve [ 3 ]. The pressure sustaining valve closes the valve when the upstream pressure [ P1 ] is lower than the setting. When the upstream pressure [ P1 ] rises above the setting, the pressure sustaining pilot valve is switched to allow the pressure reducing pilot valve to control the valve to reduce the downstream pressure [ P2 }. Local manual shut-off of the valve can be achieved by the manual selection device [ 4 ].
MODEL & SPECIFICATION
PRESSURE REDUCING AND
SUSTAINING VALVES
ARKA sustaining valve is hydraulically operated, diaphragm actuated
control valve that sustains minimum preset upstream (back)
pressure and opens fully when line pressure is in excess of setting.
It either opens or shuts in response to an electric signal.
FEATURE & ADVANTAGE
-
Line Pressure Driven, Electrically Controlled On/Off
-
Protects downstream system
-
Prioritizes pressure zones & control system fill-up
-
Sustains upstream line pressure
-
-
Engineered Plastic Valve with Industrial Grade Design
-
Highly durable, chemical and cavitation resistant​
-
No internal bolts and nuts
-
-
High Flow "Y" Valve Body with "Look Through" Design
-
Ultra-high flow capacity, low pressure loss
-
-
Unitized Flexible Supper Travel (FST) Diaphragm and Guided Plug
-
Accurate and stable regulation with smooth closing
-
Requires low opening and actuation pressure
-
Prevents diaphragm erosion and distortion
-
-
Simple In-Line Inspection and Service
-
User-Friendly Design
-
Easy pressure setting​
-
Simple In-Line Inspection and Service
-
TYPICAL APPLICATION
Computerized Irrigation System; Line Fill-Up Control Solutions; Pressure Reducing Systems ; Remote and/or elevated plots; Infield Filters Backwash Pressure Sustaining; Energy Saving Irrigation Systems.
HOW IT WORKS
The pressure reducing pilot valve [ 1 ] is connected to the valve control chamber [ 2 ] via the pressure sustaining pilot valve [ 3 ] and the shuttle calve. The pressure sustaining pilot valve closes the valve when the upstream pressure [ P1 ] is lower than the setting. When the upstream pressure rises above the setting, the pressure sustaining pilot valve is switched to make the pressure reducing pilot valve control the valve to reduce the downstream pressure [ P2 ]. The solenoid valve [ 4 ] is switched by electric signal, the pressure is guided into the shuttle valve. The shuttle valve block each pilot valves, the line pressure is transferred the control chamber, and valve closes.
MODEL & SPECIFICATION
DIMENSION
PRESSURE REDUCING AND SUSTAINING
VALVE WITH SOLENOID CONTROL
DIMENSION
BACKWASH HYDRAULIC VALVE
BACKWASH HYDRAULIC VALVE
ARKA series back-flushing control valves are 3-way hydraulic drive diaphragm
control valves with low pressure seal and smooth flow change. ARKA series
back-flushing control valve can be connected with gravel filter or disc filter into an
automatic backwash filtration system, and it can also change the direction of
flow in water supply. The control valve has 2 control chambers, which can
be deformed into angular flow or direct flow through different spring
assembly direction. The unique cavity design ensures large flow volume of
water supply.
FEATURE & ADVANTAGE
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Hydraulic drive diaphragm control valve​
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Unique plastic pool assembly design with tight sealing and corrosion resistance
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Short stroke of valves stabilizing water flow and avoiding blend of clean and dirty water
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Corrosion-proof and long lasting PP material
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With a easily dismantled driven system for convenient on production line checking and maintenance
HOW IT WORKS
Straight Flow Valve
MODEL & SPECIFICATION
TYPICAL APPLICATION
Auto back-flushing filtration system:
Assembled into a backflushing filtration system with sand media filter or disc filter.
​
Water supply system:
Being used in the water supply pipelines to reroute the water flow into angle or straight flow direction.
AIR VALVE
A TYPE KINETIC VALVE
With advanced aerodynamic design, ARKA AIR VALVES provide a sound solution for air
intake and exhaust during the filtration and water supplying. The air valves balance
the air intake and exhaust to ensure the pipes are sealed closely in low pressure.
ARKA AIR VALVES offers the most reliable solution to overcome all challenges that may
occur on a pipeline for a long lasting operational system and most efficient water network,
they are widely used in agriculture and municipal irrigation and industrial water recycling
system.
FEATURE & ADVANTAGE
-
Big size air inlet allowing large flow
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PA and PP material with corrosion, acid, and alkaline resistant features
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Compact structures & simple design & durability
-
Easy installation
HOW IT WORKS
When the filtration system is under pressure:
When the filtration system works under pressure, air will be gathered at the bottom of the chamber, then the float will move up to seal the inlet.
​
When the filtration system is in empty status:
When the system or pipe is drained empty, negative pressure will be formed in the air valve. Meanwhile the float moves down to take in air against vacuum formation.
DIMENSION
TYPICAL APPLICATION
The air valves break the vacuum formation and enhance the efficiency of draining of the filtration system.
TECHNICAL SPECIFICATIONS
-
Operating pressure: 0.2 to 10 bar / 2.9 to 145 psi
0.2 to 16 bar / 2.9 to 230 psi
-
Maximum operating temperature: 60°C / 140°F
​
A TYPE KINETIC VALVES
A-type kinetic valve can open the inlet valve quickly when a negative vacuum pressure is generated inside the system or pipeline, and a large amount of inlet air destroys the negative vacuum pressure formed inside the system or pipeline, the inlet valve is sealed under water pressure.
SPECIFICATION
AIR VALVE
K TYPE VACUUM VALVES
K-type kinetic valves are applicable to all kinds of irrigation systems. It
evacuates air quickly during pipeline filling and takes in large volume air
while draining. Adopted its advanced aerodynamic design and kinetic
orifice, this valve provides excellent protection against vacuum formation
and large volume air existing, with improved sealing under low pressure
conditions.
FEATURE & ADVANTAGE
-
Advanced aerodynamic design
-
One-piece floating ball design ensures on time shutting of outlet while the high speed airflow occurs
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Big inlet size allowing large flow
-
Quality sealing prevents leakage under low pressure conditions (2.0 bar/2.9psi)
-
PA and PP material with corrosion, acid, and alkaline resistant features and durable
-
Multi-installation sizes for various market demands
HOW IT WORKS
When the filtration system is filling:
During filling water into the pipeline, massive air will be evacuated from kinetic air intake & exhaust hole. The floating ball moves upwards to close the orifice after water flows into the chamber. With aerodynamic design and the anti-blow design, the floating ball ensures shutting of outlet on the right time while the high speed airflow occurs.
​
When the filtration system is under pressure:
The kinetic valve keeps closing.
​
When the system or pipe is drained empty:
When negative pressure difference is formed, the air pushes the float downward. The kinetic valve opens and let air enter the air valve to avoid the formation of negative vacuum pressure inside the system.
MODEL & SPECIFICATION
TYPICAL APPLICATION
K type kinetic valves can prevent the air from accumulating or eliminate negative pressure applying in filtration pipelines, water supply systems, nearby water meter & control valve and pipelines for residential area and industrial field.
DIMENSION
AIR VALVES
C TYPE KINETIC VALVES
C- kinetic valves are of high quality for various irrigation systems and operating
conditions. When the system is filled with water, the air valve discharges a large
amount of air from the pipe. When the system is under pressure, the air valve
effectively discharges a small amount of air from the pipe. When the system is
emptied, the air valve draws in a large amount of air. Adopted advanced
aerodynamic design, the valve provides excellent protection against air
accumulation and vacuum formation, with improved sealing in low pressure
conditions.
FEATURE & ADVANTAGE
-
Advanced aerodynamic design; prevents premature closing, without disturbing air intake or discharge
-
One-piece floating ball design ensures on time shutting of outlet while the high speed airflow occurs
-
Dynamic sealing prevents leakage under low pressure conditions (0.2 bar/2.9 psi)
-
PA and PP material with corrosion, acid, and alkaline resistant; lower maintenance and increased life span
-
Multi-installation sizes for various market demands
HOW IT WORKS
When the system is filling with water:
A large amount of air is discharging from the kinetic inlet and exhaust port. After the water entered the chamber, the float rises and closes the inlet and exhaust port. With aerodynamic design and the anti-blow design, the floating ball ensures shutting of the outlet on the right time while the high speed air occurs.
Under Pressure:
When the system is under pressure, air accumulates above the valve cavity. When the amount of air increases, the level inside the valve drops and the flow drops as well. At this time, the automatic micro-exhaust port opens to discharge the accumulated air. The level rises, the float rises, and then the automatic micro-exhaust port closes.
​
System draining:
When the system is emptied, a negative pressure difference is formed and the air pushes the float downward. With the kinetic inlet and exhaust port opens, the air goes into the valve to avoid the formation of negative vacuum pressure in the system.
MODEL & SPECIFICATION
TYPICAL APPLICATION
C type kinetic valves can prevent the air from accumulating or eliminate negative pressure apply in filtration pipeline, water supply system, nearby water meter & control valve and pipelines for residential area and industrial field.
​
