Hi .
Any body has an idea about some suppliers of the couplers for the domestic water meters ? in the market we have CONEX UK , so am looking for other brand good quality and competitive .
Thx in advane
Ahmad
Dears ,
we have one project and they need wrapping tape . the material we have is Butelyen PE/RUBBER with 0.8 mm thickness , but the specs of the project is called fro PVC Butmen type thickness 1.1 mm ! So how can i approach the client to approve my tape and from your point of view which...
Hi ,
what is the main difference in DI disk and stainless steel disk of butterfly valves ? in case the applications are TSE OR SEWAGE
and what is the advantage / disadvantage of both
Thx
Ahmad
Hi ,
What is the purpose of using Needle valves instead of other valves like gate and butterfly ? any specific application for the needle valves ? and what is the advantages .
Ahmad
Hi ,
What is the difference when they mention - FOR EXAMPLE - ( the valve flange according to EN1092-2 & the drilling to DIN 2501-PN 10 )
2ND question , how can i know if the valve is matching with the flange ? shall i check the PN Drilled or what ?
Ahmad
Hi ,
at one site the is abnormal sound from the actuators comparing to other actuators , note that these are installed on butterfly valves
any one can knows the reason ?
Ahmad
dears ,
we have one problem at one site , we are using ball valves DN80 , the contractor sent us back a report mention that most of the seats and balls are damaged !! the factory said that all valves are tested 100% before delivery , so what is the reason behind that ?
Ahmad
Hi ,
one of the client asked about double eccentric butterfly valves Duplex SS disk with some additional data and accessories as below ,
1. Density value ( 1.5 kg/cubic m )
2. shut of pressure ( 12 bar )
3. Compressibility (0.09956 )
4. Actuator stroke time ( 300mm per minute ) motor operated...
Hi ,
is there any difference between the Non rising stem valve & OS&Y valves ? i see some time some ppl used rising stem description and others use OS&Y valve description
Thx
Ahmad
Dear Engineers / designers / experts ;
where is the cases/applications you propose double eccentric butterfly valves or concentric ? and why ?
am talking about (( TSE lines - potable water lines - sewage plant , etc .. sizes from 300mm to 2000MM
Regards
Ahmad
Hi , we are working with one client on Butterfly fly valves specification for TSE ( Treated sewage effluent ) and Water treatment plant the body is ductile iron but the problem is the disc material is stainless steel which is dose not make seance for us !!
kindly share your opinion about it...
regarding sewage treatment which Butterfly is preferred , double eccentric or centric design ? lose liner or volucnized rubber ? and why?
regards
ahmad
helloo, we have a big project consist of 5 packages , lateral sewer 2. Trunk Sewer 3. pump station 4. treatment plant and Return TSE line
any one can advise about the kind of valves we will use in these applications ?
regards
hyari
