Type 41 Pressure Relief, Sustaining, Back Valve

Type 41 Pressure Relief, Sustaining, Back Valve

Features

  • Sensitive, accurate pressure control

  • Quickly open valve, ensure pipe pressure

  • Slow shut off design and impact prevention

  • Completely automatic operation

Features

  • Sensitive, accurate pressure control

  • Quickly open valve, ensure pipe pressure

  • Slow shut off design and impact prevention

  • Completely automatic operation

Type 41 Pressure Relief, Sustaining, Back Valve

Model 41-03 pressure relief, sustaining, back pressure valve can maintain upstream pipe pressure. It is applied for pressure relief, sustaining, and back impact problems.During operation, through pilot to sense the valve inlet pressure and control the open/close of the valve. When the input pressure is over the preset value, valve will quickly open and maintain the pressure in the pipe.After pressure relief, the valve will close slowly to prevent impact happening.
If a check feature is added, and a pressure reversal occurs, the downstream pressure is admitted in the main valve cover chamber closing the valve to prevent return flow.


  • Type 41 Pressure Back Valve 10″*150LB SUS304


Schematic Diagram

 

 

Accessories

   No. Parts Name
    1
Strainer
    2
Close Speed Control
    3
Check Valve(Optional)
    4
Ball Valve
    5
Ball Valve
    6
Pilot of pressure relief, sustaining, back
    7
Check Valve(Optional)
    8
Ball Valve

Dimension
 
 
Valve size
50牙口
50
65
80
100
125
L (mm)
184
205
229
250
320
370
H (mm)
123 155 182 186 242 276
Weight (kg)
6
11
13
22
37
46
 
Valve size
150
200
250
300
350
400
L (mm)
415
500
605
725
733
990
H (mm)
308 418 488 572 598 815
Weight (kg)
75
125
217
370
380
846
 
Notice:
※When installing the valve, strongly request to leave enough space for maintenance. It is necessary to install the filter at the front section of the valve to avoid foreign materials to block the valve and affect the operation of the valve.
 
※King-Tech reserves the right to make any revisions on the valve model and size without prior notification.
 
※When making any design drawing, installation drawing or construction drawing, please do get our approved CAD with our signature, or we will not be responsible for any mistake.

Specification
 
Size:DN50~DN400 to flange , DN50 to Thread
 
Flange:10K、16K、PN16、150LB
 
Temp. range:0℃~100℃,water
 
※Any size over DN450 can be made to order.

Material

 
Body:Ductile Iron / Stainless steel
 
Accessory:Brass / Stainless steel
 
Fastener & Spring:Carbon steel / Stainless steel
 
Diaphragm:NBR / EPDM
 
Stem:Stainless Steel

Pilot Specification

 
Pressure adjustment range:0.1~4 bar 、3~9 bar、7~16 bar
 
Temp. range:0℃~100℃,water
 
Material:Brass / Stainless steel

When Ordering, Please Specify

 
1、Valve model number
 
2、Valve size
 
3、Pressure range
 
4、Connection type
 
5、Other optional parts
 
6、Working pressure

Installation
 
  • Pressure Sustaining Valve

 

 
 
 
  • Pressure Relief Valve
 
 

Typical Application
 

 

●Pressure Relief Valve

To prevent high pressure impact happened at the time pump shut down, the quick open and slow close model 41-03 valve can release the unexpected high pressure to protect system piping and avoid water hammer problem.

 

 
 
 
 
●Sustaining Valve
 
41-03 can be used as sustaining valve by installing it between upstream high pressure water supply and downstream big flow rate demand. It can maintain upstream supply pressure to avoid over flow rate problem which will lead upstream supply pressure loss.
 

 

 


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