Automatic Control Floater Valve

CONTROL AUTOMATIC FLOATER

شیر کنترل سطح

Automatic Control Floater Valve

DN:50-1000 mm | PN: 10-40 bar

Nahrab piloted automatic control valves are used as control and regulating valves in lines. The operation of these valves is fully automatic and is controlled by the flow of fluid and does not require the application of energy from outside. In order to regulate the flow or pressure , a hydraulic circuit with a pressure difference between upstream and downstream and a regulating valve (pilot) is used, The command circuits of Nahrab control valves are state to the art and made of the best stainless steel and all of its various pilots are also produced by Nahrab Gostar Eshtehard Company. using stainless steel unions and a nipple and connector assembly makes it possible to inspect or open and close the valve at any moment and any section without the need for any sealing strip .

DN: 50 - 50
mm
PN: 10 - 10
Bar

Nahrab  piloted  automatic control valves are used as control and regulating  valves in lines. The operation of these valves is fully automatic and is controlled by the flow of fluid and does not require the application of energy  from outside. In order to regulate the flow or pressure , a hydraulic circuit  with a pressure difference between  upstream and downstream and a regulating valve (pilot) is used,  The command circuits of Nahrab  control valves are state to the art and made of the  best stainless steel and all of its  various pilots  are also produced by Nahrab Gostar Eshtehard Company. using  stainless steel unions  and a nipple  and connector assembly  makes it possible to inspect or open and close the valve at  any moment and any section without the  need for any  sealing strip .

 

Product features and advantages:

  • Easy installation due to the low weight of the valve
  • Flange: in accordance with (2501 DIN) EN 1092-2
  • Face to face: according to ( DIN 3202) DIN EN 558-1 Series1) F1
  • Final test of the valve: in accordance with DIN EN 12266-1

 

Corrosion Protection :

   Electrostatic  epoxy powder Coating  with a  min  thickness  250   and certified by reputable international institutions for potable water.

Level Control Valve (Floater):

Level control valves (float) keep the water level constant in the tank or adjust it between the specified minimum and maximum values. These valves are grouped in two Types as Follows:

(On-Off Valve): These pilots keep the water level of the tanks between the minimum and maximum levels, in this case, when the water in the tank rises to the surface, the pilot commands to shut- off the water flow and until the water level drops, Reaching the minimum level, the valve stays closed. and when the water reaches the minimum desired level, the float valve opens to raise the water level again.

Modulating

This type of float valve adjusts the water at inlet of the tank relative to its outlet, so that the more consumption , the more the valve pilot opens and the flow rate of the float valve increases, and the lower consumption and higher the water level, the pilot of  The valve closes and flow rate of the valve decreases, and when the water level in the tank reaches the maximum value, the flow will be shut off.

Spare Parts

Material

Part Name

Part No.

 

Ductile iron) GJS 400-15)*

Body

1

 

Ductile iron) GJS 400-15)*

Cover

2

 

1.4308

Seat

3

1.4301

Stem

4

EPDM or NBR

Sealing Ring

5

 

Ductile iron) GJS 400-15)

Disc

6

EPDM or NBR

Diaphragm

7

 

Ductile iron(GJS 400-15) or Al.Bz

Diaphragm Washer

8

1.4310 | 1.4301

Spring

9

 

1.4308

Disc Guide

10

A2

Stem Nut

11

1.4310 | Bronze

Cover Bearing

12

EPDM or NBR

Seat O-Ring

13

 

A2) 10inch and Larger)

Stud

14

 

A2

Hex Nut (10” and Larger)

15

A2

Pipe Plug

16

PTFE

Spacer Washer

17

 

A2

Cover Bolt (6” and Smaller)

18

They can also be produced with stainless steel or cast steel (WCB) as request

Technical drawings of this valve will be Uploaded soon