TECHNICAL CHARACTERISTICS
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1 h y d r a u l i c t e c h n o l o g y The automatic control valve of Hidro is a hydraulic piston valve controlled by the same fluid of conduction or external fluid to same or upper pressure This valves offer solutions in hydraulic installations for aplications of pressure control, flow, level, etc... The performance is very simple. Introduced fluid on the upper membrane part, this do that the piston down, and therefore causes a hermetic valve seal. The opening is produced evacuating the fluid of the membrane chamber. That do that the piston rises, and let pass the water through the valve. TECHNICAL CHARACTERISTICS 1. All the iron components are in ductile cast iron with Epoxy protection to resist corrosion. 2. Easy maintenance in the installation point. It s not necessary dismount the valve for access to internal mechanism. 3. Reinforced natural rubber membrane for prolongate the use life. 4. Closure perfect of the membrane against the body valve seat even with dirty liquids. 5. Design in balloon for improve the characteristics. 6. Body and cover in ductile iron cast for high resistent Cuerpo y tapa en fundición dúctil de alta resistencia y durabilidad. 7. closing ring and axis in stainless steel 316 resist corrosion. 8. Various kind of pilots and accesories for the configuration of our valves for different aplications. 9. Very low charge loss. 10. Closing and opening slow and gradual with elimination of blow hammer. 11. Low internal turbulence must to the special hydrodinamic design. 1 of 6
2 h y d r a u l i c t e c h n o l o g y Nº DESCRIPTION BODY CLOSING RING WASHER LOCK BOTTOM CLOSING BOARD WASHER LOOK TOP AXIS WASHER MEMBRANE BOTTOM MEMBRANE WASHER MEMBRANE TOP COVER CAMPANE HEX HEAD SCREW LISTADO DE PIEZAS DIMENSIONS MATERIAL STAINLESS STEEL 316 NATURAL RUBBER STAINLESS STEEL 316 REINFORCED NATURAL RUBBER STAINLESS STEEL 304 STEEL ZINC mm SIZE Pulg. 2" 3" 4" 6" 8" 10" 12" 14" 16" 20" 24" L A B C mm Conexions FLANGED PN 16 2 of 6
3 h y d r a u l i c t e c h n o l o g y CHARGE LOSS ABACUS 3 of 6
4 h y d r a u l i c t e c h n o l o g y VÁLVULA AUTOMÁTICA DE CONTROL CAVITATION ZONE 4 of 6
5 h y d r a u l i c t e c h n o l o g y DEFINITIONS Nominal Diameter (Dnom): Conventional numerical designations used to indicate the diameter of the irrigation valve. This designation corresponds to the nominal diameter and thread size of the pipe in which the valve can be connected without intermediate fittings Flow (qv): volume of water through the valve per unit of time. Reference speed (vref): flow rate through the valve calculated from the flow through the valve and divided by the reference section of the components. Maximum work pressure : Maximum static water pressure immediately upstream of the valve can withstand. Minimum work pressure: minimum static water pressure upstream of the valve requires the valve to operate. Minimum operating pressure (activation): minimum static water pressure in the activation chamber is required to fully activate the operating mechanism. In the event that the activation chamber is activated by pressure from the valve inlet, then the minimum operating pressure (Activation) is equal to the minimum working pressure. Working Pressure Range: The pressure between the maximum and minimum working. Nominal duration of opening or closing: period since the time the control valve is actuated to open or close the valve completely. Valve normally open (NO) valve remains open unless the pressure applied to the minimum switch operating mechanism. Valve normally closed (NC) valve remains closed unless the pressure applied to the minimum switch operating mechanism. Charge loss valve (Δpv) pressure loss between a point (determined) from the pipe upstream of the valve and another tested pipe downstream. Flow coefficient valve (kv): number equal to the water flow, in cubic meters per hour, which will go through a fully open valve with a bar pressure loss through it. Control valve: auxiliary valve operating mechanically, electrically, hydraulically or pneumatically, or otherwise, and used to actuate the hydraulic valve. 5 of 6
6 h y d r a u l i c t e c h n o l o g y POSIBLES AVERÍAS PROBLEM PROBLABLE CAUSE Pilot system isolation valves closed. CONFIRMATION Examine the position of ball valves. SOLUTION Open the isolating valves. Valve does not open. There is not enough pressure in the valve inlet. Membrane failed. For valves with reverse flow. Membrane assembly is not operating properly. Solenoid calcified. Examine the system isolation valves upstream and downstream. Remove the lid and examine the membrane. Examine the membrane. Remove the solenoid and check your core. Isolating valves open system to allow passage of water (pressure). Replace the membrane. Clean and replace parts as necessary. Clean and replace parts as necessary. Pilot is not set properly. Tighten and loosen the adjuster screw driver. See if pilot reaction. Re-adjust the pilot. Valve does not regulate at the desired point of control. Speed of opening and / or closing are not adjusted properly. Conditions required control outside the pilot spring range. Filter is clogged. Tighten or loosen the adjustment screw and check for component reaction A) Examine the plate of the pilot to check the range. B) Tighten and loosen the set screw completely and see the reaction obtained from the gauges. Disassemble and check the mesh. Adjust the speed of opening and closing as required. Change the pilot and / or spring of the proper range Clean the filter screen. Pilot component failures. Disassemble pilot and examine components for faults or wear. Replace and / or replace damaged parts if they are defective components Valve does not close. Valve not hermetically closed Pressure of the lid is being drained by the pilot system continuously. Filter is clogged. Hydraulic circuit clogged. Diaphragm of main valve has failed. Solenoid calcified. Embedded dirt between the membrane and closing support. The membrane is leaking water. Inspect pilot components for defects or faulty operation. Disconnect the copper line from the top to see if there is flow of water from the inlet. Disconnect the line and see if there is flow of water from the inlet. Remove the lid and examine the membrane. Remove the solenoid and check your core. Manually close the valve and see if the problem persists. Inspect the diaphragm and see if damaged. Replace worn or defective components. Clean the filter screen. Clear obstruction or replace hydraulic fitting. Replace the membrane. Clean and replace parts as necessary. Fully open the valve to clean the area. Replace the membrane. Contadores Hidromag Hidrantes 6 of 6
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