P 101
35 KL tanker contd.
As mentioned in last post, since the fabrication of bottom loading facility was new in India, we had several issues with OPW supplied items/arrangement. Let us look at them as case history.
1. Vapor emission from tanker during loading: source was PVRV and vapor dump valve not fully closing
2. PVRV O-ring and API adopter O-ring MOC ?
3. Improper switch setting of Air interlock valve
4. Overfill sensor failure
5. Mating of vapor arm coupler with vapor arm adopter of tank was a major issue !
There were other issues at Loading bay also !
1. Liquid arm closure was not leak tight.
2.Thread worn out problem in coupling joints
3. Vapor coming out from vapor coupler joints.
All these issues were nightmare to PRS and me as we were from hydrocarbon processing industry by experience whereas all others could not realize the sensitivity of the situation. We both took up the issue with Mr Somasundaram , VP of OPW HQ and ensured replacement/rectification of all these issues. Here one particular point needs special mention. As far as MOC of O-rings were concerned, initially OPW did not realize that Viton will not withstand MTBE vapors ! Though the order spec. was particular to opt Buna seal, they failed to realize this fact; but once it came as an issue, they
specifically manufactured and replaced all the seals.
When everything was resolved, the resultant Benefits of these new 35KL New generation Articulate trucks were:
a) Bottom loading facility ensure safe filling, less vapor loss, no static charge, clean environment from pollution angle
b)Vapor recovery system provision enhances safety
c) Overfill protection
d) Since all operating valves are pneumatically controlled, operation is efficient &safe
e) Emergency shutdown push button assures safety while loading as well as unloading in truck.
f) Pneumatic operation of all valves assure better Reliability.
End Result Reliance got robust 35 Kl Bottom loading vehicles for transporting MTBE.
But unfortunately 3 of the stalwarts of the core team are not with us today to see the trucks operational.
M/S PRS,Viswanath rao, and Ilangovan died natural death but at very young age. Our condolences in their Memoirs.
KeyAspects:- Communication, Critical challenge, Incident analysis, Responsible, Technical issue
35 KL tanker contd.
As mentioned in last post, since the fabrication of bottom loading facility was new in India, we had several issues with OPW supplied items/arrangement. Let us look at them as case history.
1. Vapor emission from tanker during loading: source was PVRV and vapor dump valve not fully closing
2. PVRV O-ring and API adopter O-ring MOC ?
3. Improper switch setting of Air interlock valve
4. Overfill sensor failure
5. Mating of vapor arm coupler with vapor arm adopter of tank was a major issue !
There were other issues at Loading bay also !
1. Liquid arm closure was not leak tight.
2.Thread worn out problem in coupling joints
3. Vapor coming out from vapor coupler joints.
All these issues were nightmare to PRS and me as we were from hydrocarbon processing industry by experience whereas all others could not realize the sensitivity of the situation. We both took up the issue with Mr Somasundaram , VP of OPW HQ and ensured replacement/rectification of all these issues. Here one particular point needs special mention. As far as MOC of O-rings were concerned, initially OPW did not realize that Viton will not withstand MTBE vapors ! Though the order spec. was particular to opt Buna seal, they failed to realize this fact; but once it came as an issue, they
specifically manufactured and replaced all the seals.
When everything was resolved, the resultant Benefits of these new 35KL New generation Articulate trucks were:
a) Bottom loading facility ensure safe filling, less vapor loss, no static charge, clean environment from pollution angle
b)Vapor recovery system provision enhances safety
c) Overfill protection
d) Since all operating valves are pneumatically controlled, operation is efficient &safe
e) Emergency shutdown push button assures safety while loading as well as unloading in truck.
f) Pneumatic operation of all valves assure better Reliability.
End Result Reliance got robust 35 Kl Bottom loading vehicles for transporting MTBE.
But unfortunately 3 of the stalwarts of the core team are not with us today to see the trucks operational.
M/S PRS,Viswanath rao, and Ilangovan died natural death but at very young age. Our condolences in their Memoirs.
KeyAspects:- Communication, Critical challenge, Incident analysis, Responsible, Technical issue