Dear all, Good morning!
Hopefully all of your doing well and taking care during the pandemic.
Well! I have a query regarding the usage of Bolt tensioning, as a general practice we do torquing to achieve flang joint integrity from smallest to larger size bolts but
what is the guideline or...
Hi!
How do we calculate Torque to be apply on bolts?
If Bolt size, length & Nut size known to us.
bolt size: 2 1/2"
Length : 17"
Pl. Revert
With regards
Good afternoon to all!
I came across term 'SRWN' RF flange during PV Dwg.overlook.
As I know LWN flange as 'Long weld neck flange' but what is 'SRWN' flange?
Is it Short Radius Weld Neck (SRWN)Flange?
Pl. revert.
With regards
Dear all, Good afternoon !
AS we know for Boiler testing purpose we are doing gagging of Safety valve.
I Search Google for any videos related to it which can put more
light on it but not found.
Can anybody explain in detail or any doc. or video can be share?
Pl. revert.
With regards
Dear all, Good afternoon !
Following is the situation for subject valve;
Valve: Ball Valve
Pressure seal bonnet gasket
Connection: BW
Class: 2500 #
Gear operated (Ratio:275:1)
Service: Synthesis gas
Temp: 50° C
Pressure: 200 Kg/ Cm2
Position: Full open (Suspected 95 % open)
Problem: GEARBOX WORM...
Dear all, Good afternoon !
Regarding the subject matter Gate valve following is the situation for which I need your expert & experienced feedback.
We are working over Steam Super Heater (High Pressure High Temperature service) who's outlet isolation Gate valve not getting operate i.e.
Open or...
Good evening to everybody!
How to calculate check valve test pressure, for the following criteria
1) Metal seat & non metal seat
2) High pressure & low pressure.
As per Valve testing STD.API 598 finally it directs to ASME B16.34
which is not clear.
All of you are requested to elaborate the...
Dear all, Good afternoon !
We are working over outlet of Super heater Gate valve (12" X 10" X 12" X 2500# BW)on superheated steam line
(12", Des.Pressure 130 Kg/ Cm2, Temp.: 540°C ) this valve having equalizing line (1")with 1" Globe valve.
(Line is from Valve body to Valve body), My...
Dear all, Good morning!
Regarding the subject matter always I found different opinion
can anybody firmly differentiate "what is STELLITED MATERIAL TO A182 Gr. F6 MATERIAL?"
Awaiting Reply.
with regards
Dear all, Good morning!
Regarding the subject matter we r facing sever problem of Compressor casing vibration while start up.
The short coverage is as follows. :
We have a 10 Compressor's (OEM :GE) the one which is frequently gives serious vibration (0.8 to 3.9 mm/s)is of Natural Gas compressor...
Dear All, Good evening!
Regarding the subject matter due to malfunctioning of MOV limit switch Gearbox of B'Fly. valve broken.
Now after repairing of G.Box how we can position valve flapper in Open Position.
Valve can't drop as it is on main header of Sea water cooling, required Turnaround if...
Dear all, Good morning!
As mentioned in subject we have high pressure Angle Globe isolation Valve of stripper (8" x 2500 #)
in highly corrosive Carbamate service whose bonnet (RTJ) gasket is leaking and we don't have spares
in hand, packing ring as well as RTJ ring. I have the option as...
Dear All, Good afternoon !
If any Plug spindle/ stem of valve (short length,1Ft approx.)is got detectable / Visual bend from head onwards
What is to be done to it to make it straight if material is SS316L (Urea Grade / stellated / Chrome plated)?
With regards
Dear all, Good afternoon !
Regarding the subject matter for any type of valve which may be passing, trim damaged, block etc.
and if we don't have spares in hand then what is more preferable 1) to open without spares in hand? 2) to keep as it is till spares available?
pl. discuss the...
Dear all, Good morning!
Regarding the subject matter I have check valve 12" & 6" 2500 Class (Swing type)
on Sy.Gas Compressor discharge line.
According to the API 598 allowable passing (Leak) rate is 0.25 M3/Hr.
As we test 6" valve it was on the threshold of allowable leak rate but continuous...
Good Morning all !
what is the basis of material selection & standard for any equipment?
If deviation of material observed in RFQ & Quotation for any equipment or spares
what should be the approach in such scenario?
With regards
Girish
How to set frequency for valve maintenance, specially PM.
Operation cond'n & physical status is visually monitor but
what about internals?
Suggest the strategy for valve Preventive Maintenance.
