Dear Legends,
Can anyone throw light which of the following is more stringent among
B3.2 Type I and B3.3 Type II LOW PRESSURE GAS TEST API6D Annexure B
and when the prior is to be used in place of latter.
Is there any particular condition when prior is better than letter. we have been...
Any legends
which are the fcators that determine which size of gate valve should have thermal relief systems on bonnet or is there any spec that defines when to have this relief system?
We have been circulating the question of what size of wedge gates valves should require the thermal relief...
MOLTEN METAL,
OUR FACTORY DESIGN IS WITH SPRING SEAL ON SIDE ONLY. ARE THE OTHER VENDORS SELLING SPRING TYPE SEATS ON BOTH THE SIDES.
ON THE OTHER HAND ARE YOU REFERRING LAPPED BALL VALVES AS THE ONE WHERE THE SEAT IS LAPPING WITH BALL WITHOUT ANY SPRING?
Gerhard/Ciao,
seemingly its a quality problem as you stated at some point as out of around 50 valves just 16 passed in one go (with zero leakage for sizes 2" and smaller and logically to me if the one valves is passing there is no point we can attributre this leakge as a design failure...
We are having really very tough time while producing small metal seated ball valves in the range of 3/4" class 150(Floaters) to 2" class 300(trunnion).we have done all permutation and combination but unable to achieve zero leakage as per API 598.
these valves are for produced water package with...
Reference: basic globe valve wcb body with Trim 12for different sizes 2" onwards.
Is there anyone who can urgently share his/her expertise to advise on the problem I encountered. The problem is that Globe valve having very difficulty to turn Clockwise/anti-clockwise...
Dear all,
I am looking for a substitute for B148 C95800 material for side entry ball valves. is there any one who can assist me on this.
valve are 2" to 24"
body cover ball & stem-B148
spring -inconel X750
service condition-95 deg c
design pressure 16 BARG
firewater,closed drain,injection...
