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NEED ADVICE, PLEASE: BACKGROUND: Low temperature carbon steel castings LCB and LCC acc. to ASTM A 352 are typically supplied in the “quenched and tempered” heat treatment condition in order to meet the impact test requirements at-46°C. However “quenched and tempered” is not one of the above...

I am using a 2200 psi DOT Bottle to fill a 3 cubic foot, 3000 psi, Test Vessel. The bottle has 230 cubic feet of nitrogen. How many times can I fill the 3 cubic foot vessel before the DOT bottle is empty? Seems it would depend on the PRV Set Pressure? If so, 125 psi, 650 psi and 1440 psi are...

At what concentration of H2S would you use a NACE trim PRV set 1440 psi JAC

If a system has a mixture of 42% Dowtherm A (liquid) and 58% Steam, does the ASME Sec. VIII requirement for a Lifting Device on Steam apply? JAC

I am looking for info on a Machined Plug (hopefully OEM) to insert in a Farris Packed Lever Cap in place of the Packed Lever to convert it to Plain Cap. I have seen them in the Field, but current Farris Contacts do not have information. Any information would be appreciated. JAC

I am looking for guidance in the Testing of Low Pressure Vacuum and Vent Valves (weight loaded and spring loaded). These are below minimum for ASME Code Rules. I need Set Pressure Definition, Test method, Set Pressure Tolerance, Gauge Accuracy, etc. Also Seat Tightness requirements. Any help...

Can anyone offer an opinion based on experience or physics which support the position that there is more tendency for SRV in Liquid to service to Chatter than SRV in Compressible Fluid Service? Thank you. JAC

Can anyone offer an opinion based on experience or physics which support the position that there is more tendency for SRV in Liquid to service to Chatter than SRV in Compressible Fluid Service? Thank you. JAC

I have a situation where a Dresser 1758A-S2 Drum Valve with WCC Carbon Steel Body material was inadvertently installed on a 900F Superheater Outlet for approx 7 Days. Does anyone know how this would affect the Safety Valve's structural integrity? Should it be shutdown or can it handle the...

I have a customer who wants Weldment Acceptance Criteria for weld repairs to Gate, Globe & Check valves. I have loked at ASME Sec. V (NDE) & Sec. IX (Welding), but I am not familiar with these documents. I would like input regarding the issue of Weldment Acceptance Criteria. Any help would be...

I need information on "How to fit a Wedge" in a Gate Valve. I understand it requires Feeler gauges to determine how much metal to remove, but I need details. Can anyone help? JAC

My background is in Safety-Relief Valves. I have been conducting training on Pressure Relief Valve repair for over 20 years. However, recently I have been asked to develop training for reapir of Manual Valves (Gate, Globe & Check) and Control Valves (including actuated 1/4 turn). I am seeking...

If a system has 1500 psi upstream pressure with 400 cu ft of compressed air storage (50,000 cubic feet of air available), will the flow through 45 ft of 3/4 nps sch 80 pipe with four (4) elbows be greater than 10,000 scfm with a pressure drop of 900 or more psi? MY calculation is 11278 cfm, but...

A relief valve set for 1250 psi on a system with a positive displacement pump (2500 rpm) sees pressure spikes of 1275 psi every 1.5 seconds. However, the RV does not lift. Does anyone know why it does not respond to the pressure spikes? J. Alton Cox www.delucatest.com

Can anyone direct me to info on max pressure rating for 2-1/2" Schedule 40 Carbon Steel Pipe? J. Alton Cox www.delucatest.com

I need help with a simple equipment & vessel lay up procedure. Does anyone know where to find something like that? J. Alton Cox www.delucatest.com

I am looking for a source for 2", 2.5", 3", 4" and 6", RF Flanged, High Pressure (900#, 1500# & 2500#) Stainless Steel, Trunion Mounted, Standard and Full Port, Ball Valves. Any help would be appreciated. The intended service is either compressed air, notrogen and/or water. The temperature...

I am a relatively unsophisticated user who needs aid in determining the required capacity for systems found in general industry. I also need assistance in estimating pressure relief device adequacy of systems. I am looking at systems which include ASME Sec. I, Sec. IV and Sec. VIIIs. Sec...

Can anyone help me locate a copy of API 567 or tell me the subject matter. I am not familiar with this standard. Thank you in advance for your assistance. J. Alton Cox President DeLuca Test Equipment www.delucatest,com

I have a Double Acting Actuator originally sized for a 4" 900# Full Port Ball Valve. I need to know if this Actuator could be used for a 3" 1500# Full Port Ball Valve. I need to use this 3" 1500# Ball Valve in a max 2000 psig/100F application. There will be a By-Pass in the...