Products

HYDRAULIC VALVES

WATER WORKS

G SERIES - GLOB TYPE HYDRAULIC CONTROL VALVE G-PRV SERIES - PRESSURE REDUCING CONTROL VALVE G-QRV SERIES - PRESSURE RELIEF HYDRAULIC CONTROL VALVE G-FLV SERIES - FLOAT LEVEL CONTROL VALVE G-EL / 2W SERIES - SOLENOID CONTROL VALVE G-EL / 3W SERIES - SOLENOID CONTROL VALVE G-EFL SERIES - ELECTRICAL FLOAT CONTROL VALVE G-PSV SERIES - PRESSURE SUSTAINING CONTROL VALVE G-PRSV SERIES - PRESSURE REDUCING AND SUSTAINING CONTROL VALVE G-PREL SERIES - PRESSURE REDUCING SOLENOID CONTROL VALVE G-ECV SERIES - ELECTRONIC CONTROL VALVE G-DKV SERIES - FLOW CONTROL VALVES G-PKV SERIES - PUMP CONTROL VALVE G-REV SERIES - SURGE ANTICIPATING CONTROL VALVE G-CV SERIES - HYDRAULIC CHECKVALVE G-LCV SERIES - LIFT TYPE CHECKVALVE DQR / DIRECT ACTING RELIEF CONTROL VALVE DLG-EL / ELECTRIC ACTIVATION DELUGE ALARM VALVE DLG-P / PNEUMATIC ACTUATION DELUGE (DRY) ALARM VALVE DLG-ELP / ELECTRO-PNEUMATIC ACTIVATION DELUGE ALARM VALVE (PRE-ACTION)

IRRIGATION

D SERIES - DIAPHRAGM OPERATORS HYDRAULIC CONTROL VALVES D-MV SERIES - MANUEL HYDRAULIC CONTROL VALVE D-ELV SERIES - SELONOID CONTROL VALVE D-PRV SERIES - PRESSURE REDUCING CONTROL VALVE D-QRV SERIES - PRESSURE RELIEF HYDRAULIC CONTROL VALVE D-PKV SEERIES - PUMP CONTROL VALVE D-PREL SERIES - PRESSURE REDUCING SELENOID CONTROL VALVE D-FLV SERIES - FLOAT CONTROL VALVE D-PSV SERIES - PRESSURE SUSTAINING CONTROL VALVE D-PRSV SERIES - PRESSURE REDUCING AND SUSTAINING CONTROL VALVE

FIRE FIGHTING

G SERIES - GLOB TYPE HYDRAULIC CONTROL VALVE G-PRV SERIES - PRESSURE REDUCING CONTROL VALVE G-QRV SERIES - PRESSURE RELIEF HYDRAULIC CONTROL VALVE G-FLV SERIES - FLOAT LEVEL CONTROL VALVE G-EL / 2W SERIES - SOLENOID CONTROL VALVE G-EL / 3W SERIES - SOLENOID CONTROL VALVE G-EFL SERIES - ELECTRICAL FLOAT CONTROL VALVE G-PSV SERIES - PRESSURE SUSTAINING CONTROL VALVE G-PRSV SERIES - PRESSURE REDUCING AND SUSTAINING CONTROL VALVE G-PREL SERIES - PRESSURE REDUCING SOLENOID CONTROL VALVE G-ECV SERIES - ELECTRONIC CONTROL VALVE G-DKV SERIES - FLOW CONTROL VALVES G-PKV SERIES - PUMP CONTROL VALVE G-REV SERIES - SURGE ANTICIPATING CONTROL VALVE G-CV SERIES - HYDRAULIC CHECKVALVE G-LCV SERIES - LIFT TYPE CHECKVALVE DQR / DIRECT ACTING RELIEF CONTROL VALVE DLG-EL / ELECTRIC ACTIVATION DELUGE ALARM VALVE DLG-P / PNEUMATIC ACTUATION DELUGE (DRY) ALARM VALVE DLG-ELP / ELECTRO-PNEUMATIC ACTIVATION DELUGE ALARM VALVE (PRE-ACTION)

MECHANICAL VALVES

KNIFE GATE VALVE SURFACE BOXES CHECK VALVE (CLASS 150) CHECK VALVE (DISC TYPE) CHECK VALVE (SPRING TYPE) CHECK VALVE (GLOBE TYPE) CHECK VALVE (BALL) CHECK VALVE (WAFER TYPE) CHECK VALVE (CLASS 125) CHECH VALVE (SWING TYPE) CHECK VALVE (VERTICAL TYPE) DISMANTLING JOINT FOOT VALVES SAFETY VALVES GLOBE VALVES GLOBE VALVE (CLASS 150) GLOBE VALVE (CLASS 125) BUTTERFLY VALVE (LUG TYPE) BUTTERFLY VALVES (DOUBLE FLANGE) BUTTERFLY VALVE (WAFER TYPE) STRAINER BASKET BALL VALVES (CLASS 150-300) BALL VALVE (PN10) BALL VALVE (PN16) BALL VALVE (THREADED) STRAINER (Y TYPE) IRRIGATION HYDRANT (DOUBLE OUTPUT) IRRIGATION HYDRANT (SINGLE OUTPUT) GATE VALVE RISING STEM (CLASS 150) GATE VALVE RISING STEM (CLASS 125) GATE VALVES (PN10) GATE VALVE RISING STEM (PN16) GATE VALVE RESILIENT SEATED (PN10) GATE VALVE RESILIENT SEATED (PN16) GATE VALVE (PN 16) GATE VALVE (WITH INDICATOR) GATE VALGE RISING STEM (PN10) FLOAT VALVE (ANGLE TYPE) FLOAT VALVE (FLAT TYPE) TILTING CHECK VALVE AIR VALVES FIRE HYDRANT (SHORT TYPE) FIRE HYDRANT (OVER GROUND)

G SERIES - GLOB TYPE HYDRAULIC CONTROL VALVE

G SERIES - GLOB TYPE HYDRAULIC CONTROL VALVE

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 valves bodys 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 valves two points (upper and lower). Thus, the valve does the opening-closing up and the modulation function more efficiently.
The main valve shafts bearings dont 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 valves working position can be observed by this means.
The valves 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 valves 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 doesnt 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 doesnt 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 valves 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 valves 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 valves actuator. The pressure in the actuator is very close to the line pressure at the valves Closed Up Position. The pressure in the actuator creates a power to the diaphragm assembly in the direction of the closed up position. The valves diaphragm area is larger than the clacks area. Because of this area difference the valves 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 valves 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 Pressure Medium Pressure Range: ISO PN16 bar – 230 psi
High Pressure Range: ISO PN25 bar – 360 psi
Working Pressure Medium Pressure Range : 0,7 – 16 bar / 10 psi – 230 psi
High Pressure Range : 0,7 – 25 bar / 10 psi – 360 psi
Flange Dimensions TS ISO 7005/2 – EN 1092 – 2
Working Temperatures -10 °C / 14 °F – 80 °C / 176 °F
Test Body Sealing Test : 1,5 X PN (TS EN 12266-1)
Diaphragm Sealing Test: 1,2 X PN (TS EN 12266-1)
Plating Sandblasting + Phosphorylation + Electrostatic Powder Coating
Hydraulic Connectors Forged Brass – Galvanized Coated Steel
Hydraulic Conduction Pipe Copper pipe – Stainless Steel Pipe – Aluminum Pipe

VALVE SELECTION TABLE

Valve Diameters 50 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 m/h
Water Speed : 5 m/s
35 m³/h 60 m³/h 90 m³/h 140 m³/h 320 m³/h 565 m³/h
Flow At Maximum Speed gpm
Water Speed : 16 f/s
160 245 350 630 1400 2500

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 Diameters 50mm
2 inch
65 mm
2½ inch
80 mm
3 inch
100 mm
4 inch
150 mm
6 inch
200 mm
8 inch
Kv Flow Coefficient m³/h
1 bar @ m³/h
45 62 100 174 412 658
Cv Flow Coefficient
1 bar
52 72 116 203 481 769
K Resistance Coefficient
Dimensionless
4.8 7.4 6.4 5.1 4.8 5.8

MATERIAL LIST

No Description Metarial
1 Valve Body GGG 40 Ductile Cast Iron
2 Valve Cover GGG 40 Ductile Cast Iron
3 Diaphragm Standard : Court Cloth Reinforced Natural Rubber
Optional : Court Cloth EPDM Rubber
4 Seal Disc GGG 40 Ductile Cast Iron
5 Stem Standard : SS 304 Stainless
Optional : SS 316 Stainless
6 Spring Standard : SS 304 Stainless
Optional : SS 316 Stainless
7 Radial Port Standard : GGG 40 Ductile Cast Iron
Optional : Bronse
8 Stem Bearing Standard : Ms 58 Brass
Optional : Bronse
9 Seat Standard : Ms 58 Brass
Optional : Bronse
10 Disc Standard : GGG 40 Ductile Cast Iron
Optional : Stainless X20Cr13
11 Stem Nut Stainless A2
12 Gasget Sealing Standard : EPDM
Optional : Nitril, Viton
13 O-Ring NBR
14 Bolt + Washer Standard : 8.8 Galvanized Steel
Optional : A2 Stainless
15 Lifting Hook Standard : 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 fluids 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”
mm inch mm inch mm inch mm inch mm inch mm inch
ØD 165 6 1/2 185 7 9/32 200 7 7/8 220 8 21/32 285 11 7/32 340 14 25/64
ØK 125 4 59/64 145 5 45/64 160 6 19/64 180 7 3/32 240 9 29/64 295 11 39/64
Ød 99 3 57/64 118 4 41/64 132 5 13/64 156 6 9/64 211 8 5/16 266 10 15/32
ØL*n 19*4 3/4 19*4 3/4 19*8 3/4 19*8 3/4 23*8 29/32 23*12 29/32
g 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8
L 230 9 1/16 290 11 27/64 300 11 13/16 350 13 25/32 480 19 57/64 530 20 55/64
H 185 7 9/32 200 7 7/8 220 8 21/32 240 9 29/64 330 13 63/64 385 15 5/32
C 21 53/64 21 53/64 23 29/32 23 29/32 25 63/64 27 1 1/16
R 175 6 57/64 200 7 7/8 220 8 21/32 260 10 15/64 360 14 11/64 400 15 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