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Hi bimer, you can see this video for one manufacturer but we can not deal with because of the origin boycott http://www.youtube.com/watch?v=dBui6vi8pxE&feature=player_embedded This is typically what I search for but from another manufacturer

Hello gerdardl, Yes ARI is very famous for automatic air valves and flow control devices, I know about this model METAIR , that perfectly can cover my application but the problem related the origin of ARI, there is boycott to deal with, on the other hand please advise if you heared about below...

Please advise what you mean by ( replace by newer models ) have you idea to change th existing system air valve with check valve and the water meter to new meter with integrated air vent or what pleas explain. Regds, Baram

Hi gerhardl, thanks for your fruitful reply. I have checked Gestra range they speak about steam traps but my application is potable water and I ask for combination air valves, my water temprature from 25-40 C degree, what you think? Best Regards, Baram

Thank you gerhardl, I can copy extra information, it may help as per below: this is special combination air valves which is being installed before domestic water meter , the domestic water meter is multi jet type class B, this type of meters has internal plastic impeller which is rotated by...

Hello DRWeig/bimer, DRWeig, I am so sorry for this dublication and thank you for th advice. bimer, this is special combination air valves which is being installed before domestic water meter , the domestic water meter is multijet type class B, this type of meters has internal plastic impeller...

Hi All, I have old air valves integrated with plastic check valve in the air valve outlet, size 1/2" brand SPANNER -POLLUX , this air vent is isntalled before house hold water meter, to improve& protect the water meter from air damages as our country depends on dis-continous flow for water...

Hi All, I have old air valves integrated with plastic check valve in the air valve outlet, size 1/2" brand SPANNER -POLLUX , this air vent is isntalled before house hold water meter. The problem that I need replacements of these but the manufacturer have stopped the production 10 years back, so...

Hello All, Please note that I have waterworks application and there are some areas approx. 10 miles length with total elevation (-)620 meters, gravity pressurized line so the working pressure there exceed 60 bars of water pressure and we would like to fix some air release valve to eleminate the...

Hello All, I have potable water application on duty, pipe size 32 inches and this line 25 years old from ductile iron material. Pipeline depends on gravity and there are 8 miles distances with negative elevations, the line intake from reservoir to feed the system and house connection. Water...

Hello .. I would like to know which is better gaskets EPDM or synthatic fiber rubber? as I have ductie iron flanges pipes and flanges fittings, I want fix gaskets between flanges for sealing. The medium is potable water, max. pressure 25 bars, pipe dia 500mm, temprature 40-50 C degree.

Sorry, I only as about the ultrasonic flow meters which is Badger meter

Also please find another model as per below web link: http://www.badgermeter.com/getdoc/277c572f-e491-45a9-81a2-daf0dc295515/ESM-T-01-EN--2-12--E-Series-ALL-SIZES-Stainless-St.aspx

Hello All, I would like to ask about disadvantages of using ultrasonic flow meters for househeld connections in hot climate. application: domestic water Water pressure: 30 psi water source: desalinated water meter location: outside of buildings and fixed in plastic box in the wall. The problem...

Hi David, I mentioned that application is sewage water also the pressure is 10 bars, should calculate 1 bars losses because of elevations , if you need something else, please let me know. Baram

Hi TD2K, I am agricultural field, I have less info on calcualtion of hydraulic that is why I come to our experts, I really do not know how to calculate this formula. Regds, Baram

I would like to know the nominal size of the pipe

By the way the surge anticipating control valve will be more quicke response than pressure relief valve, it will be opened at very less positive wave. Baram

Hi all, Could you please advise how I can calculate GRP pipe diameter? I have application submersible pump for sewage water, flow rate 200 L/S, pressure is 10 bars, Pipe line length is 200 meters. Thanks in advanc, Baram

Thank you very much valving as I see it is flow control valve parallel with pressure control , this valve always will be in dynamic movements always so can not adjust it to mean pressure but for pilot operated pressure reducing valve we can pre-adjust the required pressure so the valve will keep...