Unassociated Document






Exhibit 4.8.60 -Self-Control Components - Two-Way Valve - VVG41 Series 
 













	
SIEMENS

	
4364


	 	 
	
Two-Way Valve

	  
	 	 
	
External Thread Connection, PN16

	
VVG44...








                        





	  	
 

	
 







External thread connection G...B two-way valve, pressure grade PN16



	
  

	
l

	
Valve body: bronze Rg5








	
  

	
l

	
Nominal diameter: DN15...DN40mm (1/2’’...1 1/2’’)








	
  

	
l

	
Flow rate: kvs 0.25...25m3/h








	
  

	
l

	
Stroke of valve handle: 5.5 mm








	
  

	
l

	
Can be regulated manually by mounting a regulator








	
  

	
l

	
Can be mounted with the SQS35..., Sqs65... or SQS85...actuators.








	
  

	
l

	
Accessories can be ordered independently

















	  	  
	
Application   Be applicable for the control valve or safety shutoff valves of small and medium-sized heating, ventilating and air conditioning system. Be applicable for closed system.










	  	  	  
	
Media

	
Cooling water

	  
	  	
Chilled water

	  
	  	  	  
	  	
Low temperature hot water

	
+2...+120°C


	  	  
	  	
Anti-freezing water


	  	  











   







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Model overview


  



	
 Model

	
DN

	
kVS


[m3/h]

	
Sv

	
△Pvmax.


[kPa]


	
[mm]

	
[Inch]


	
VVG44.15-0.25


VVG44.15-0.4


VVG44.15-0.63

	
 


 


 


15

	
 


 


 


1⁄2”

	
0.25


0.4


0.63

	
>50

	
 


 


 


400


	
VVG44.15-1

	
1


1.6


2.5


4


	
VVG44.15-1.6


VVG44.15-2.5


VVG44.15-4

	
>100


	
VVG44.20-6.3

	
20


25


32


40

	
3⁄4”


1”


11⁄4”


11⁄2”

	
6.3


10


16


25


	
VVG44.25-10


VVG44.32-16


VVG44.40-25

	
300


200


100







 


DN= nominal diameter


kVS = rated flow that conforms to VDI 2173 Standard


Sv = flow capacity that conforms to VDI 2173 Standard


△P vmax..= maximum allowable differential pressure between two ends of valves, when the valve handle reaches the maximum stroke (the valve is fully open)








	
 Order 

	
Please describe the quantity, product name and model code when ordering the purchase.







 For example: three two-way valves VVG44.25-10


 The accessories must be ordered separately.


     





	
Transportation

	
The valve, actuator and the required accessories are packaged and supplied separately.








	
  

	
              







 Combining equipment



	
Valve model

	
H100


[mm]

	
Actuator


SQS35..., SQS65..., SQS85...

	
Accessories


 


 


Model


	
△Pmax

	
△Ps


	
[kPa]


	
VVG44.15-0.25


VVG44.15-0.4


VVG44.15-0.63

	
 


 


 


 


 


5.5

	
 


 


 


 


400

	
1600

	
 


 


 


ALG15


	
VVG44.15-1


VVG44.15-1.6

	
850


	
VVG44.15-2.5


VVG44.15-4

	
400


	
VVG44.20-6.3

	
800


400


225


100

	
ALG20


ALG25


ALG32


ALG40


	
VVG44.25-10


VVG44.32-16

	
300


200


100


	
VVG44.40-25


	  	  	
Technical data N4573

	  







    








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1) Optional actuator: ●AC 230V, three-position signal








  ● AC 24V, three-position signal











  ● AC 24V, DC 0...10 V or DC 2...10V scale position signal




H100     = 100% stroke of valve and actuator



△Pmax = maximum allowable differential pressure between both ends of valve, when the actuator can maintain normal operation within the whole stroke





△Ps      = maximum allowable differential pressure (shut-off pressure) between both ends of valve, on the premise of ensuring the actuator can be closed safely




 



	
 

	
 









	
Mechanical design

	


	  
	
Valve profile

	
Pilot parabola valve plug and valve handle are integrated.


	  	  
	  	
Valve seat is attached to valve body through special seal material directly.

















	 	
Note:        

	
the two-way seat valve cannot be used as three-way valve by loosening the screw nut and removing the blank flange at the bottom of valve.












  





	
Disposal    

	
Due to the use of different types of materials, before disposing, disassemble the nut of various models of material, and classify the valve parts.













	
  

	
                 







     



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Model selection



  


Flow rate graph


 




 





 



100 kPa = 1 bar ≈10 mWG





1 m3h  = 0.278 Kg/s when the water is 20°C





△Pvmax.  = maximum allowable differential pressure between both ends of valve, when the actuator can maintain normal operation within the whole stroke





△Pv100  = differential pressure between both ends of valve, when the valve is fully open and its flow is V100. Its unit is kPa or bar.





V100   = flow rate, with the unit of m3/h or l/s





 


Valve flow characteristics




    




	


	  
	
Valve flow characteristics


	
Linear, comply with VDI/VDE2173 Standard


	  
	  
	  
	  








     




  





  











  






    





	
 

	
 







   


Notices


   




	
Engineering 

	
● It is suggested that the valve be mounted on the return water pipe, because in the heating system, the temperature of return water pipe is relatively low. In this way, the service life of valve spool seal can be extended.











	
 

	
● The water quality shall comply with VDI 2035 Standard.











	 	
Note 

	
It is suggested that the filter be mounted in front of valve, so as to increase the operational reliability of valve.
















	
Mounting 

	
The valve and actuator can be assembled in the mounting position simply, independent of special tools and any adjustment.











	
  

	
The valve shall be attached with the Instruction for Mounting before leaving the factory.










Mounting position


 

















	 	
Allowed 

	
           Forbidden
















	
Direction of water flow 

	
During the mounting, pay attention that the mark of water current direction on the valve shall be consistent with the 









 






	 	
actual water current direction.

	














 




	
Debugging 

	
Debug the valve with the hand operated regulating knob that has been mounted or with the actuator that is mounted directly.










Valve handle contracts:      flow increases




Valve handle extends:        flow decreases




 










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Repair 

	
When repairing the actuator, comply with the following sequences: first turn off the water pump and cut off the water pump power source; close the stop valve, drain the water within the water pipe in order to reduce the pressure within water pipe, and cool the hot water pipe naturally. Remove the electrical wiring from connection terminal.













	
 

	
Re-debug the valve with the hand operated regulating knob mounted or the actuator mounted correctly.











	
Seal of valve handle 

	
The valve handle seal cannot be replaced. If it leaks, the whole valve must be replaced. So, the attention must be paid to the information provided in the “Repair”. You can contact the local office or branch of Siemens Building Technologies.









  



	
 

	
     









	
Guarantee 

	
The valves shall not be guaranteed if the actuator is manufactured the third manufacturer.











	
 

	
All technical data listed, including△Pmax, △Ps, leakage rate, noise index and lifetime are only applicable to the corresponding actuators of Siemens Building Technologies included in the “Model overview”.










	
 

	
 







 




	
Technical data

	  	  	  	  
	
Functional parameter

	  	
PN (pressure) grade

	  	
PN16


	  	  	
Valve flow characteristics

	  	  
	  	  	  	  	
0...100%  linear, comply with VDI / VDE 2173 Standard


	 	   	Leakage rate 	    	
kvs 0...0.02%, comply with VDI / VDE 2174 Standard


	  	  	
Allowable operating pressure

	  	
Within +2...+120, 1600KPa (16 bar), comply with ISO 7268 / EN 1333, DIN 4747 / DIN3158 Standards


	  	  	
Thread connection

	  	  
	  	  	
Valve

	  	
G...B, comply with ISO 228/1 Standard


	  	  	
Accessories

	  	
Rp..., comply with ISO 7/1 Standard


	  	  	
Stroke

	  	
5.5 mm


	  	  	
Weight

	  	
See the “Dimension” (form)


	  	  	  	  	  
	
Material

	  	
Valve body

	  	
Bronze G-CuSn5ZnPb (Rg5), comply with DIN 1705 Standard


	  	  	
Valve seat

	  	
Stainless steel, bronze Rg5 and brass


	  	  	
Valve handle

	  	
Stainless steel





   











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Valve plug

	  	
Stainless steel or brass


	  	  	
Seal ring

	  	
Brass


	  	  	
Seal material

	  	
EPDM-O ring


	  	  	
Accessory ALG

	  	
Malleable iron


	  	  	  	  	  
	  	  	  	  	  
	
Dimension

	
  

	
Unit of all dimensions: mm

	
  

	  







     





 



	
DN =

	
nominal diameter










	
H    =

	
total height of actuator plus minimum mounting space of mounting, connecting and operation, or the minimum distance required by maintenance to the ceiling or wall









    













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H1  =

	
distance from the center line of water pipe to the mounting edge (upper edge) of actuator












	
H2  =

	
position when the valve is fully open (it means the valve handle extends completely)









 















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