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Hi All, Per ASME SEC 1 code, set pressure tolerance for a PSV setting between 301 PSI to 1000 PSI is +/- 10 PSI. For a Consolidated model# 2755B-2-X1-F1-WSC-RL PSV (Flange), do we need to follow ASME SEC 1 or SEC VIII code if same is being tested using air as the medium at our local valve...

Hi All, It's understood that the computed set pressure for a pressure relief valve during pop test is the average of at least the last three measured set pressures once established and stabilized. Based on the "average set pressure" achieved, the valve repair shop performing the test should...

Hi All, The results are as follows; When I tested the same gauge using a 0.05 % accuracy digital test gauge; Input(PSI) Actual(PSI) 0 0 300 300.25 600 600.32 900 900.41 1200 1200.57 1500 1500.63 All readings were found to be...

Hi All, An Ashcroft test gauge model#1082(pressure range 0-1500 PSI) with a 0.25% accuracy FSO was set up for calibration on an Ametek DWT having an accuracy of 0.1% of nominal value and was found to be within 0.25% tolerance, tested okay. However, same(gauge) was sent to a third party for...

Hi All, We are currently performing testing for set pressure indication on an assembled 19126M pressure relief valve and failed to set at the desired set pressure having inconsistent readings each lift. Apart from inconsistent readings, the valve itself did not passed the acceptable test for...

Hi All, I have a quick question where I need your help. I’m looking for torque values for case bolts for # 4 10900 actuator. Do you have a table or procedure? I've reviewed the actuator manual for same and there is no such information related to torque values for actuator maintenance...

Thanks danw2. Can you advise on a good Instrumentation book which I can purchase for additional knowledge on control valve besides the Emerson control valve handbook? Thanks Naresh

Hello Everyone, I'm a second year student doing my degree now in Instrumentation and would like to get some additional information on valve positioners.As part of our practical assessment,I need to install an 8012 model masoneilan positioner on a control valve with a NEW bench range of 6-30...

Hi All, I'm performing a hydro test on a ANSI Class 150# control valve at 435 PSI according to the Manufacturer's procedure and each time I need to pressure up above 435 PSI(approx 440 PSI) in order for the test to stabilize and allow the valve to pass the test without falling below the...

Hi All Can you kindly advise if the bench range on a 525 regulator,2-10 PSI with a set pressure of 6 PSI,what would be the shut-off pressure on the regulator when the plug is touching the seat with a 3/8" travel? I'm presently testing one of them and the shut-off pressure is not going any...

Hi All, Can someone advise of a method,not procedure,to hydrost a butterfly 14" valve. I need to open the valve and when partially or fully open,the butterfly will be projecting on either sides of the valves making it difficult to adapt a flange to perform a body test on both sides.For the seat...

Hi All, I have an HC-30 Ventil control valve test bench and would like to know how to utilised it for testing class V control valves at maximum differential pressure across the seat. Can anyone with similar test bench advise a procedure for testing such? Appreciate your response.. Thanks, Naresh

Hi All, Can anyone help me on how to perform testing and calibration on Pressure reducing valves? Also help needed on how to test Back pressure relieving valves. Appreciate your response.Thanks.