Globe type solenoid valves

PRODUCT DESCRIPTION

The globe type hydraulic control valves are used for pressure, flow and level control at water distribution lines, fire protection systems, irrigation networks and filtration applicatons. The globe control valves are designed as diaphragm controlled, clack shut-off valves. The valve's body's globe type design has easy installation and maintenance advantages.

PROPERTIES

The main valve consists of 3 basic parts which are globe type valve body, diaphragm assembly and cover.
Because of the only moving part of the valve is diaphragm assembly, the maintenance of the valve is quite easy and cheap.
With the usage of pilot valves that provide different control types mounted on the main valve, in practice the desired modulation function can be done easily.
The diaphragm assembly works rigidly through the valve shaft beared to the main valve's two points (upper and lower). Thus, the valve does the opening-closing up and the modulation function more efficiently.
The main valve shaft's bearings don't have any shaft bushing. By this means, the valve can work long years with no need to any maintenance.
An indicator shaft can be mounted on the main valve. The valve's working position can be observed by this means.
The valve's impermeability clack gasket can be changed.
The valve can do modulation function even at very low flows through “Radial Port" that is mounted on the impermeability clack.
The valve's diaphragm is a synthetic rubber that is strengthened with cord fabric. Different diaphragms can be used for desired applications.
The corrosion resistant spring helps the impermeability clack to close fully up by providing extra power to the diaphragm assembly.
The diaphragm does modulation function precisely with the help of the actuator.
The valve doesn't create pressure fluctuations in the network by closing slowly and impermeable up.
The main valve body can be easily transformed to a double control reservoir at desired necessary applications.

OPERATION PRINCIPLE

The globe type hydraulic control valves work with the line pressure totally hydraulic in the network. The valve doesn't need any extra energy source like electrical, pneumatical, mechanical etc. when carrying out the opening-closing up and the modulation function. The basic logic at working principle is the area difference between the diaphragm and the impermeability clack. The pilot valves mounted on the main valve are the equipments that provide the main valve work at opening-closing up and modulational positions. Different pilot valves are used for different applications.

VALVE OPEN
Normally the main valve is at the closed up position. In this position, the evacuation port of the pilot valve mounted on the main valve is opened up. Thus, the pressured water in the main valve's actuator is relieved by the help of the pilot valve. Because of no pressure in the actuator, the line pressure pushes to the clack that creates a power in the direction of the opened up position. That created power maintains the main valve be at the opened up position.The valve's minimum open up pressure is about 0,7 bar (10 psi).

VALVE CLOSED
In this position, the pilot valve mounted on the main valve closes the evacuation port. The line pressure is transfered to the valve's actuator. The pressure in the actuator is very close to the line pressure at the valve's Closed Up Position. The pressure in the actuator creates a power to the diaphragm assembly in the direction of the closed up position. The valve's diaphragm area is larger than the clack's area. Because of this area difference the valve's close up power will be much bigger than the open up power. Thus, the main valve will be impermeable at the closed up position.

MODULATION POSITION
The pilot valve mounted on the main valve at desired applications, provides the main valve to work at Modulation Position. The desired modulation function can be adjusted by the pilot valve. The pilot valve adjusted at a desired value makes stable the difference pressure in the actuator or flowrate between the adjusted values. It provides the main valve work at the modulation position by reflecting this difference pressure to the main valve's actuator. At the pressure reduction, pressure stabilization and flow control functions the main valve works at this position.

TECHNICAL PROPERTIES

Nominal Diameters (mm)
Nominal Diameters (inch)
DN 50 - DN 65 – DN 80 – DN 100 – DN 150 – DN 200
2" - 2½" – 3" – 4" – 6" – 8"
Nominal PressureMedium Pressure Range: ISO PN16 bar – 230 psi
High Pressure Range: ISO PN25 bar – 360 psi
Working PressureMedium Pressure Range : 0,7 – 16 bar / 10 psi – 230 psi
High Pressure Range : 0,7 – 25 bar / 10 psi – 360 psi
Flange DimensionsTS ISO 7005/2 – EN 1092 – 2
Working Temperatures-10 °C / 14 °F – 80 °C / 176 °F
TestBody Sealing Test : 1,5 X PN (TS EN 12266-1)
Diaphragm Sealing Test: 1,2 X PN (TS EN 12266-1)
PlatingSandblasting + Phosphorylation + Electrostatic Powder Coating
Hydraulic ConnectorsForged Brass – Galvanized Coated Steel
Hydraulic Conduction PipeCopper pipe – Stainless Steel Pipe – Aluminum Pipe

VALVE SELECTION TABLE

Valve Diameters50 mm
2 inch
65 mm
2½ inch
80 mm
3 inch
100 mm
4 inch
150 mm
6 inch
200 mm
8 inch
Flow At Maximum Speed m³/h
Water Speed : 5 m/s
35 m³/h60 m³/h90 m³/h140 m³/h320 m³/h565 m³/h
Flow At Maximum Speed gpm
Water Speed : 16 f/s
16024535063014002500

Q : Flow - m³/h
ΔH : Difference Pressure - bar,psi
Kv : Flow Coefficient (Metric) - m³/h
Cv : Flow Coefficient (U.S)
V : Water Speed- m/s
K : Valve Resistance Coefficient - Dimensionless

Valve Diameters50mm
2 inch
65 mm
2½ inch
80 mm
3 inch
100 mm
4 inch
150 mm
6 inch
200 mm
8 inch
KvFlow Coefficient m³/h
1 bar @ m³/h
4562100174412658
CvFlow Coefficient
1 bar
5272116203481769
KResistance Coefficient
Dimensionless
4.87.46.45.14.85.8

MATERIAL LIST

NoDescriptionMetarial
1Valve BodyGGG 40 Ductile Cast Iron
2Valve CoverGGG 40 Ductile Cast Iron
3DiaphragmStandard : Court Cloth Reinforced Natural Rubber
Optional : Court Cloth EPDM Rubber
4Seal DiscGGG 40 Ductile Cast Iron
5StemStandard : SS 304 Stainless
Optional : SS 316 Stainless
6SpringStandard : SS 304 Stainless
Optional : SS 316 Stainless
7Radial PortStandard : GGG 40 Ductile Cast Iron
Optional : Bronse
8Stem BearingStandard : Ms 58 Brass
Optional : Bronse
9SeatStandard : Ms 58 Brass
Optional : Bronse
10DiscStandard : GGG 40 Ductile Cast Iron
Optional : Stainless X20Cr13
11Stem NutStainless A2
12Gasget SealingStandard : EPDM
Optional : Nitril, Viton
13O-RingNBR
14Bolt + WasherStandard : 8.8 Galvanized Steel
Optional : A2 Stainless
15Lifting HookStandard : 8.8 Galvanized Steel
Optional : A2 Stainless

HEADLOSS CHART

CAVITION TABLE

Cavition
Generally, at the Pressure Reducing Control Valve applications, because of the cross sectional narrowings on the valve, the pressure conditions change too. The most narrow point is the point that the speed is at maximum and the pressure is at minimum. From this narrow point, the most kinetic energy transforms to turbulance, separations, to heat and at some sections to pressure. If the pressure drops under the fluid's vaporization pressure, the cavitation that causes mechanical damage to the valve, starts. Being careful to not to cross the cavitation boundary is essential in these kinds of applications.

SIZE AND WEIGHT TABLE

ØDN
PN16
50 – 2"65 - 2½"80 – 3"100 – 4"150 – 6"200 – 8"
mminchmminchmminchmminchmminchmminch
ØD1656 1/21857 9/322007 7/82208 21/3228511 7/3234014 25/64
ØK1254 59/641455 45/641606 19/641807 3/322409 29/6429511 39/64
Ød993 57/641184 41/641325 13/641566 9/642118 5/1626610 15/32
ØL*n19*43/419*43/419*83/419*83/423*829/3223*1229/32
g31/831/831/831/831/831/8
L2309 1/1629011 27/6430011 13/1635013 25/3248019 57/6453020 55/64
H1857 9/322007 7/82208 21/322409 29/6433013 63/6438515 5/32
C2153/642153/642329/322329/322563/64271 1/16
R1756 57/642007 7/82208 21/3226010 15/6436014 11/6440015 3/4
Weight
Kg-lbs
15
Kg
33
Lbs
22
Kg
48
Lbs
26
Kg
57
Lbs
38
Kg
83
Lbs
77
Kg
169
Lbs
138
Kg
304
Lbs




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