Entlüftungsventile

Di Nicola Produktion Entlüftungsventile auf einfache und dreifache Wirkung , Sicherheitsventile und Vakuum braker Schraube in Sphäroguss Legierungen EN GJS400 und EN GJS500 , geschweißt elektro EN S275 J0 Kohlenstoffstahl und rostfreiem Stahl mit hohem Nickel für extreme Korrosions aus über dreißig Jahren mit Größen von 40 bis 1600 mm und Nenndrücken von 2,5 bar bis 100 bar . Bei Konstruktion und Prüfung gemäß EN 1074 und AWWA 512 Flansche nach EN 1092-2 und ANSI 150 . Das Unternehmen Di Nicola Herstellung nicht-Standard Luftöffnungen auf Anfrage der Kunden.

KatalogE
  • Catalogo01

    Gate valves

    The gate valve body is made of cast steel and it is suitably dimensioned to assure a high safety factor. The thicknesses are always higher than the mini-mum ones established for GATE VALVE by the API Standards. The Series 150 has been designed with particular care, being the oval section of the central body suitable to stand irregular deformations. Also the body of the Series 300 has got an oval section, but only near the seats, while the rest of the body gets wider and assumes a circular section.
    The bodies of all the upper Series have got circular sections, in order to allow the most uniform distribution of the str esses.
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  • Catalogo14Gate Valves with resilient wedge

    The primary sealing of the Di Nicola gate valves with resilient wedge is obtained by a simple compression of the wedge rubber surfaces. The total absence of lateral frictions avoid the wearing due to long time working.

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  • Catalogo24Automatic Hydraulic Valves

    HM
    single chamber valve

    HM-P
    proportional piston valve

    HM-D
    double chamber valve

    HM-RP
    pressure reducing valve

    HM-EL
    electrohydraulic on/off valve

    HM-SR
    quick relief valve, to avoid water hammer

    HM-SP
    pressure sustaining valve

    HM-NR
    check valve

    HM-ALT
    altitude control valve

    HM-SV
    excessive flow valve

    HM-QP
    flow control valve

    HM-CP
    pump control valve

    HM-GAL
    modulating type float control valve. max/min level

    HM-GAD
    float control valve. max/min level

    HM-PP
    proportional piston actuated valve designed for high differential pressures
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  • Catalogo13

    Needle Valves

    The network has gained increasing importance trying to conciliate available water reserves and the always increasing request for water. Usually, the network capacity is always greater than the effective request; this implies the necessity to utilize devices able to control the distribution of the water without wasting it. Needle valve is especially designed to realize the function of regulating the water flow, maintaining an easy handling even in circumstances which comport heavy hydrostatic loads at its mouth and a very different excercise pressure. The use of needle valve with the aid of actuators allows to utilize it in control systems with very different functions.

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  • Catalogo19Check Valves

    Key features
     Swing check valves are used on:
    • acqueducts
    • waste water
    • heatings
    • conditioning
    • industry
     
     water

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  • Catalogo02

    Swing Check valves

    The body is made of steel and suitably dimensioned, considering also the “Water Hammers” to which these valves can be subject. The thronghflow sections are widely fitted with a surface corresponding to the Standard ASA B.16.5 for fittings.The thicknesses of the flanges for the connection to the pipeline are always higher than the minimum ones foreseen by the above mentioned Standard for the relative fittings.
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  • Catalogo18Centric type butterfly valves, Wafer e Lug

    Why butterfly valve?
    •  Economical.
    •  100% tight shut off and no leakage.
    •  Low pressure loss.
    •  More strength with less weight.
    •  Simple installation and mounting.
    •  Easy repair / maintenance and long service life.

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  • CatalogoValvoleaFarfallaButterfly valves

    Butterfly valves are used as isolating and regulating devices on acqueducts, waterworks, hydroelectric plants and nuclear plants.

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  • CatalogoValvoleaFarfallaSafety butterfly

    Safety butterfly valves are used for the following purposes:
    - Shut off the pipelines on pumping plants or penstocks in case of failure of electric power in order to avoid backflow towards the pump;
    - keep low damages that may be caused by water excess velocity into pipelines by supplying a hydroelectric turbine in case of misfunctioning of the turbine, or more frequently, following a pipe fracture duw to earthquakes or crumbling movementes.

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  • Catalogo03

    Globe Valves

    The body is made of cast steel and the thic  knesses are always higher than the minimum ones established by the API and BS Standards. The inner diaphragm and the flanges are widely connected to te body, in order to avoid backflows dur ing the cooling of the flow and to make the stresses uniform as much as possible during the operations for which the valves are foreseen. The  section of the pipes for the charging and discharging of the flow is never less than the one foreseen by the ASA B.16 5 Standards for fittings corresponding to the diameter and the series. The thicknesses of the flanges for the connetion to the pipes are higher than the minimum ones foresecn by the above mentioned Standards for the relative fittings.
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  • Catalogo04

    Ball valves

    The body is made of cast steel and the thicknesses are always higher than the minimum ones established by the API and BS and DIN Standards. The flanges are widely connected to te body, in order to avoid backflows during the cooling of the flow and to make the stresses uniform as much as possible during the operations for which the valves are foreseen. The section of the pipes for the charging and dischar ging of the flow is never less than the one foreseen by the ASA B.16 5 Standards for fi ttings corresponding to the Diameter and the Series. The thicknesses of the flanges for the connetion to the pipes are higher than the minimum ones foresen by the above mentioned Standards for the relative fittings.

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  • Catalogo22Inline Sleeve Valve

    The pipeline multijet valve VH4 Type it is used to dissipate the cinetic Energy of the water inside the pipeline, avoiding ≤the common negative phenomena present on it as: Cavitation, vibration and noises. Ponted the most negative and important phenomenon is the cavitation one that causes high stress and damages on the pipeline.

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  • CatalogoFloatinValvesFloating Valves

    The Di Nicola’s floating valve double disk type is the best solution for the control of the level on basins or tanks in presence of high pressure on pipeline.
    In fact, the structure of double disk type permits the balancing of the pressure thrust on both disks, reducing in this way, the stresses necessary for the operation. For the valve with one disk only, it is necessary to use big floatings even in presence of low pressures and moreover, it is not possible to dimension the valves without knowing all the data referred to the pressure (piezometric pressure, upstream and downstream design pressure).

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  • Catalogo12

    Joints

    Universal pipe flange adaptor specially designed to connect plain-ended pipes of different outside diameters and materials eliminating the need for di smantling joints.  Therefore the costs of installation are reduced thanks to the easy and quik assembly also in difficult conditions.
    Designed to accomodate pipes with different outside  diameters with no gasket replacement, they reduce  stocks as one coupling is able to connect steel, ductile
    iron, PVC, cast iron and asbestos cement pipes.

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  • Catalogo20Monolitic Joints

    The dielectric joints are generally used in order to isolate electrically each other extraneous structure that will not be affected by cathodic protection systems of a different type such as those of impressed current and galvanic anodes. Sometimes, the same are used in addition to such cathodic protection systems, especially in large networks and geometrically complex, making feasible their protection from those trunks affected by stray currents from the rest of the structures, and making it possible to control the interference from them generated. The metallic elements which constitute the joints of normal production are joined together by welding.
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  • catalogo10

    Sluice gates

    In the field of water control and treatment plants, the use of penstocks and accessories made of cast iron substitutes completely the electrowelded steel products. The reason of this choice is that the cast iron products offer several advantages regarding the corrosion resistance and to the reduction of the costs for maintenance and shutting-off of the plant. Moreover, some special cast iron alloys, for example the Ni-resist material with a high resistance to the sea water or the spheroidal cast iron with a high mechanical resistance, give to the cast iron penstocks and accessories characteristics better than those offered by the common steel materials.
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  • Catalogo11

    Rectangular Butterfly Gate Valves

    Di Nicola rectangular rubber-seated butterfly gates are designed and manufactured for water-tight closure. The easy installation and operation allows a variety of  uses in waste water application. They are available in four-sided seating models or in-line mounting and in three-sided channel mounted units. Butterfly gates are designed and fabricated for its specific installation and according to customers requirements.

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  • Gate valvesGate valves
  • Gate Valves with resilient wedgeGate Valves with resilient wedge
  • Metal Gate ValvesMetal Gate Valves
  • Valvole Idrauliche AutomaticheAutomatic Hydraulic Valves
  • Needle ValvesNeedle Valves
  • Check ValvesCheck Valves
  • Swing Check valvesSwing Check valves
  • Centric type butterfly valves, Wafer e LugCentric type butterfly valves, Wafer e Lug
  • Butterfly valvesButterfly valves
  • Paratoie in Acciaio INOX Tipo a MuroSafety butterfly
  • Globe ValvesGlobe Valves
  • Ball valvesBall valves
  • Inline Sleeve ValveInline Sleeve Valve
  • Floating ValvesFloating Valves
  • JointsJoints
  • Monolitic JointsMonolitic Joints
  • Sluice gatesSluice gates
  • Rectangular Butterfly Gate ValvesRectangular Butterfly Gate Valves
  • Gates in stainless steel type WallsGates in stainless steel type Walls

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  • Phone: +39 085 9049480
  • FAX: +39 085 9049481

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Di Nicola - Infinam
Via Mazzini, 11 - 66020 San Giovanni Teatino - CH

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