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Looking for ideas on a valve type. I have to install some valves on my city water intake. 6" steel lines. Its slightly filtered river water which can include debris, both small and medium size. I am thinking HP butterfly valve to get a good seal over knife gate. Any thoughts or experiences? line...

I am little confused. I have a client stating that they need to find a subsea valve that has a max temperture of 350F. Where would the valve see such high temps? Also, the depth is 3000 meters.

I have a customer looking at some valves for a chemical injections skid(MEG). what are the typical piping and valve sizes used on these skids?

Other than the office testing according to API such PRII etc.. What is the inherent difference between a standard high pressure trunnion ball valve and one that is subsea design? This seems broad I know but basically could I use a 316SS trunnion 6000k ball valve for a subsea application?

We are looking to purchase some valves which need to be fire safe. We are running into the difference between the safe designed valves and the tested. We are aware of the test criteria for API 607 and what it will mean to be tested. But, what is the criterion to call yourself a fire safe...

Does anyone have any experience with high temperature o'rings, or if there is such a thing? Looking at a ring that can withstand the API fire testing for a high pressure valve. Any suggestions?

does anyone have experience with High Temperature o'rings? I am talking fire tested rings, so will see 1300F

What class under ASME B16.34 would ball valves with ratings to 15-20k have? I do not see a material in B16.34 that can be rated so high. Does 16.34 take us to 4500 special class then above 11,250psi do other standards then need to be followed? How about an API spec?

What class under ASME B16.34 would ball valves with ratings to 15-20k have? I do not see a material in B16.34 that can be rated so high. Does 16.34 take us to 4500 special class then above 11,250psi do other standards then need to be followed?

What is the general or most common type of 17-4 used in the oil and gas industry, mainly in valve design? 17-4PH or another type.

Any basic ideas as to the difference between specs API 607 and API 6FA? It appears that the testing is the same however the 6FA is strictly for API designed valves and the 607 is for "others". Any ideas?

We have our soft seated ball valves fire tested to API 607, which refers to fire testing for soft seated quarter turn valves. Is there a API standard for metal seated valves?

Is 17-4 not suitable for all sour gass apllications or does NACE limit the material to have special requirments? Having a hard time getting a straight answer.