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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.

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 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

Hello all, If there is application to reduce pressure from 140 psi bar 85 psi, can we use pressure reducing valve (diaphragm type) OR plunger type control valve. On the otherhand please find my clarifications as below: 1. what are the main feature for each valve type in this application? 2...

Hi Our Experts, I have pilot operated pressure reducing valves 6" , brand is ,pilot model 1340 , pilot spring range 20-80 psi is damaged, My question is : can I use another manufacturer for directing acting pressure reducing valve size 1/2" instead of the pilot. pilot port size is 1/2". In...

Hi Our Experts, I have pilot operated pressure reducing valves 6" , brand is ,pilot model 1340 , pilot spring range 20-80 psi is damaged, My question is : can I use another manufacturer for directing acting pressure reducing valve size 1/2" instead of the pilot. pilot port size is 1/2". In...